Math

1ArrayList<String> strList = new ArrayList<String>();
2strList.add("Mary had a little lamb named Willy");
3strList.add("Mary had a little ham");
4strList.add("Old McDonald had a farm named Willy");
5strList.add("Willy had a little dog named ham");
6strList.add("(abc)");
7strList.add("(xyz)");
8strList.add("Visit Target Store");
9strList.add("Visit Walmart Store");
10Mary had a -> 2
11Mary had a little -> 2
12( -> 2
13Visit -> 2
14named Willy -> 2
15ham -> 2
16) -> 2
17Store -> 2
18public static final int INDEX_NOT_FOUND = -1;
19
20public static String getAllCommonPrefixesInList(final String... strs) {
21    if (strs == null || strs.length == 0) {
22        return EMPTY_STRING;
23    }
24    
25    
26    final int smallestIndexOfDiff = getIndexOfDifference(strs);
27    if (smallestIndexOfDiff == INDEX_NOT_FOUND) {
28        
29        // All Strings are identical
30        if (strs[0] == null) {
31            return EMPTY_STRING;
32        }
33        return strs[0];
34    } else if (smallestIndexOfDiff == 0) {
35        
36        
37        // No common initial characters found, return empty String
38        return EMPTY_STRING;
39    } else {
40        
41        // Common initial character sequence found, return sequence
42        return strs[0].substring(0, smallestIndexOfDiff);
43    }
44}
45
46
47
48
49
50
51public static int getIndexOfDifference(final CharSequence... charSequence) {
52    if (charSequence == null || charSequence.length <= 1) {
53        return INDEX_NOT_FOUND;
54    }
55    boolean isAnyStringNull = false;
56    boolean areAllStringsNull = true;
57    
58    
59    final int arrayLen = charSequence.length;
60    int shortestStrLen = Integer.MAX_VALUE;
61    int longestStrLen = 0;
62
63    // Find the min and max string lengths - avoids having to check that we are not exceeding the length of the string each time through the bottom loop.
64    for (int i = 0; i < arrayLen; i++) {
65        if (charSequence[i] == null) {
66            isAnyStringNull = true;
67            shortestStrLen = 0;
68        } else {
69            areAllStringsNull = false;
70            shortestStrLen = Math.min(charSequence[i].length(), shortestStrLen);
71            longestStrLen = Math.max(charSequence[i].length(), longestStrLen);
72        }
73    }
74
75    // Deals with lists containing all nulls or all empty strings
76    
77    if (areAllStringsNull || longestStrLen == 0 && !isAnyStringNull) {
78        return INDEX_NOT_FOUND;
79    }
80
81    // Handle lists containing some nulls or some empty strings
82    if (shortestStrLen == 0) {
83        return 0;
84    }
85
86    // Find the position with the first difference across all strings
87    int firstDiff = -1;
88    for (int stringPos = 0; stringPos < shortestStrLen; stringPos++) {
89        final char comparisonChar = charSequence[0].charAt(stringPos);
90        for (int arrayPos = 1; arrayPos < arrayLen; arrayPos++) {
91            if (charSequence[arrayPos].charAt(stringPos) != comparisonChar) {
92                firstDiff = stringPos;
93                break;
94            }
95        }
96        if (firstDiff != -1) {
97            break;
98        }
99    }
100
101    if (firstDiff == -1 && shortestStrLen != longestStrLen) {
102        
103        // We compared all of the characters up to the length of the
104        // shortest string and didn't find a match, but the string lengths
105        // vary, so return the length of the shortest string.
106        return shortestStrLen;
107    }
108    return firstDiff;
109}
110import java.util.*;
111import java.util.stream.*;
112
113class Main {
114  public static void main(String[] args) {
115    
116    System.out.println("Hello world!");
117
118    ArrayList<String> strList = new ArrayList<String>();
119    
120    strList.add("Mary had a little lamb named Willy");
121    strList.add("Mary had a little ham");
122    strList.add("Old McDonald had a farm named Willy");
123    strList.add("Willy had a little dog named ham");
124    strList.add("(abc)");
125    strList.add("(xyz)");
126    strList.add("Visit Target Store");
127    strList.add("Visit Walmart Store");
128
129    Map<String, Integer> prefixMap = new HashMap<String, Integer>();
130    ArrayList<String> stringsWithHighestOccurrence = new ArrayList<String>();
131
132    for (String word : strList) {
133            for (int i = 1; i <= word.length(); i++){
134        String prefix = word.substring(0, i);
135        prefixMap.merge(prefix, 1, Integer::sum);
136      }
137        }
138
139    Integer maxval = Collections.max(prefixMap.values());
140
141    for (String key: prefixMap.keySet()){
142      Integer value = prefixMap.get(key);
143      if (value > 1) System.out.println(key + " : " + value);
144      if (value == maxval) stringsWithHighestOccurrence.add(key);
145    }
146
147    int maxLength = stringsWithHighestOccurrence.stream().map(String::length).max(Integer::compareTo).get();
148    
149    System.out.println(maxLength);
150
151    ArrayList<String> prefixesWithMaxLength =
152stringsWithHighestOccurrence.stream().filter(c -> c.length() == maxLength).collect(Collectors.toCollection(ArrayList::new));
153    System.out.println(prefixesWithMaxLength);
154  }
155}
156

1ArrayList<String> strList = new ArrayList<String>();
2strList.add("Mary had a little lamb named Willy");
3strList.add("Mary had a little ham");
4strList.add("Old McDonald had a farm named Willy");
5strList.add("Willy had a little dog named ham");
6strList.add("(abc)");
7strList.add("(xyz)");
8strList.add("Visit Target Store");
9strList.add("Visit Walmart Store");
10Mary had a -> 2
11Mary had a little -> 2
12( -> 2
13Visit -> 2
14named Willy -> 2
15ham -> 2
16) -> 2
17Store -> 2
18public static final int INDEX_NOT_FOUND = -1;
19
20public static String getAllCommonPrefixesInList(final String... strs) {
21    if (strs == null || strs.length == 0) {
22        return EMPTY_STRING;
23    }
24    
25    
26    final int smallestIndexOfDiff = getIndexOfDifference(strs);
27    if (smallestIndexOfDiff == INDEX_NOT_FOUND) {
28        
29        // All Strings are identical
30        if (strs[0] == null) {
31            return EMPTY_STRING;
32        }
33        return strs[0];
34    } else if (smallestIndexOfDiff == 0) {
35        
36        
37        // No common initial characters found, return empty String
38        return EMPTY_STRING;
39    } else {
40        
41        // Common initial character sequence found, return sequence
42        return strs[0].substring(0, smallestIndexOfDiff);
43    }
44}
45
46
47
48
49
50
51public static int getIndexOfDifference(final CharSequence... charSequence) {
52    if (charSequence == null || charSequence.length <= 1) {
53        return INDEX_NOT_FOUND;
54    }
55    boolean isAnyStringNull = false;
56    boolean areAllStringsNull = true;
57    
58    
59    final int arrayLen = charSequence.length;
60    int shortestStrLen = Integer.MAX_VALUE;
61    int longestStrLen = 0;
62
63    // Find the min and max string lengths - avoids having to check that we are not exceeding the length of the string each time through the bottom loop.
64    for (int i = 0; i < arrayLen; i++) {
65        if (charSequence[i] == null) {
66            isAnyStringNull = true;
67            shortestStrLen = 0;
68        } else {
69            areAllStringsNull = false;
70            shortestStrLen = Math.min(charSequence[i].length(), shortestStrLen);
71            longestStrLen = Math.max(charSequence[i].length(), longestStrLen);
72        }
73    }
74
75    // Deals with lists containing all nulls or all empty strings
76    
77    if (areAllStringsNull || longestStrLen == 0 && !isAnyStringNull) {
78        return INDEX_NOT_FOUND;
79    }
80
81    // Handle lists containing some nulls or some empty strings
82    if (shortestStrLen == 0) {
83        return 0;
84    }
85
86    // Find the position with the first difference across all strings
87    int firstDiff = -1;
88    for (int stringPos = 0; stringPos < shortestStrLen; stringPos++) {
89        final char comparisonChar = charSequence[0].charAt(stringPos);
90        for (int arrayPos = 1; arrayPos < arrayLen; arrayPos++) {
91            if (charSequence[arrayPos].charAt(stringPos) != comparisonChar) {
92                firstDiff = stringPos;
93                break;
94            }
95        }
96        if (firstDiff != -1) {
97            break;
98        }
99    }
100
101    if (firstDiff == -1 && shortestStrLen != longestStrLen) {
102        
103        // We compared all of the characters up to the length of the
104        // shortest string and didn't find a match, but the string lengths
105        // vary, so return the length of the shortest string.
106        return shortestStrLen;
107    }
108    return firstDiff;
109}
110import java.util.*;
111import java.util.stream.*;
112
113class Main {
114  public static void main(String[] args) {
115    
116    System.out.println("Hello world!");
117
118    ArrayList<String> strList = new ArrayList<String>();
119    
120    strList.add("Mary had a little lamb named Willy");
121    strList.add("Mary had a little ham");
122    strList.add("Old McDonald had a farm named Willy");
123    strList.add("Willy had a little dog named ham");
124    strList.add("(abc)");
125    strList.add("(xyz)");
126    strList.add("Visit Target Store");
127    strList.add("Visit Walmart Store");
128
129    Map<String, Integer> prefixMap = new HashMap<String, Integer>();
130    ArrayList<String> stringsWithHighestOccurrence = new ArrayList<String>();
131
132    for (String word : strList) {
133            for (int i = 1; i <= word.length(); i++){
134        String prefix = word.substring(0, i);
135        prefixMap.merge(prefix, 1, Integer::sum);
136      }
137        }
138
139    Integer maxval = Collections.max(prefixMap.values());
140
141    for (String key: prefixMap.keySet()){
142      Integer value = prefixMap.get(key);
143      if (value > 1) System.out.println(key + " : " + value);
144      if (value == maxval) stringsWithHighestOccurrence.add(key);
145    }
146
147    int maxLength = stringsWithHighestOccurrence.stream().map(String::length).max(Integer::compareTo).get();
148    
149    System.out.println(maxLength);
150
151    ArrayList<String> prefixesWithMaxLength =
152stringsWithHighestOccurrence.stream().filter(c -> c.length() == maxLength).collect(Collectors.toCollection(ArrayList::new));
153    System.out.println(prefixesWithMaxLength);
154  }
155}
156class TrieNode {
157    private final Map<Character, TrieNode> children = new HashMap<>();
158    private int count;
159
160    Map<Character, TrieNode> getChildren() {
161        return children;
162    }
163
164    boolean getCount() {
165        return count;
166    }
167
168    void increaseCount() {
169        this.count += 1;
170    }
171}
172

1ArrayList<String> strList = new ArrayList<String>();
2strList.add("Mary had a little lamb named Willy");
3strList.add("Mary had a little ham");
4strList.add("Old McDonald had a farm named Willy");
5strList.add("Willy had a little dog named ham");
6strList.add("(abc)");
7strList.add("(xyz)");
8strList.add("Visit Target Store");
9strList.add("Visit Walmart Store");
10Mary had a -> 2
11Mary had a little -> 2
12( -> 2
13Visit -> 2
14named Willy -> 2
15ham -> 2
16) -> 2
17Store -> 2
18public static final int INDEX_NOT_FOUND = -1;
19
20public static String getAllCommonPrefixesInList(final String... strs) {
21    if (strs == null || strs.length == 0) {
22        return EMPTY_STRING;
23    }
24    
25    
26    final int smallestIndexOfDiff = getIndexOfDifference(strs);
27    if (smallestIndexOfDiff == INDEX_NOT_FOUND) {
28        
29        // All Strings are identical
30        if (strs[0] == null) {
31            return EMPTY_STRING;
32        }
33        return strs[0];
34    } else if (smallestIndexOfDiff == 0) {
35        
36        
37        // No common initial characters found, return empty String
38        return EMPTY_STRING;
39    } else {
40        
41        // Common initial character sequence found, return sequence
42        return strs[0].substring(0, smallestIndexOfDiff);
43    }
44}
45
46
47
48
49
50
51public static int getIndexOfDifference(final CharSequence... charSequence) {
52    if (charSequence == null || charSequence.length <= 1) {
53        return INDEX_NOT_FOUND;
54    }
55    boolean isAnyStringNull = false;
56    boolean areAllStringsNull = true;
57    
58    
59    final int arrayLen = charSequence.length;
60    int shortestStrLen = Integer.MAX_VALUE;
61    int longestStrLen = 0;
62
63    // Find the min and max string lengths - avoids having to check that we are not exceeding the length of the string each time through the bottom loop.
64    for (int i = 0; i < arrayLen; i++) {
65        if (charSequence[i] == null) {
66            isAnyStringNull = true;
67            shortestStrLen = 0;
68        } else {
69            areAllStringsNull = false;
70            shortestStrLen = Math.min(charSequence[i].length(), shortestStrLen);
71            longestStrLen = Math.max(charSequence[i].length(), longestStrLen);
72        }
73    }
74
75    // Deals with lists containing all nulls or all empty strings
76    
77    if (areAllStringsNull || longestStrLen == 0 && !isAnyStringNull) {
78        return INDEX_NOT_FOUND;
79    }
80
81    // Handle lists containing some nulls or some empty strings
82    if (shortestStrLen == 0) {
83        return 0;
84    }
85
86    // Find the position with the first difference across all strings
87    int firstDiff = -1;
88    for (int stringPos = 0; stringPos < shortestStrLen; stringPos++) {
89        final char comparisonChar = charSequence[0].charAt(stringPos);
90        for (int arrayPos = 1; arrayPos < arrayLen; arrayPos++) {
91            if (charSequence[arrayPos].charAt(stringPos) != comparisonChar) {
92                firstDiff = stringPos;
93                break;
94            }
95        }
96        if (firstDiff != -1) {
97            break;
98        }
99    }
100
101    if (firstDiff == -1 && shortestStrLen != longestStrLen) {
102        
103        // We compared all of the characters up to the length of the
104        // shortest string and didn't find a match, but the string lengths
105        // vary, so return the length of the shortest string.
106        return shortestStrLen;
107    }
108    return firstDiff;
109}
110import java.util.*;
111import java.util.stream.*;
112
113class Main {
114  public static void main(String[] args) {
115    
116    System.out.println("Hello world!");
117
118    ArrayList<String> strList = new ArrayList<String>();
119    
120    strList.add("Mary had a little lamb named Willy");
121    strList.add("Mary had a little ham");
122    strList.add("Old McDonald had a farm named Willy");
123    strList.add("Willy had a little dog named ham");
124    strList.add("(abc)");
125    strList.add("(xyz)");
126    strList.add("Visit Target Store");
127    strList.add("Visit Walmart Store");
128
129    Map<String, Integer> prefixMap = new HashMap<String, Integer>();
130    ArrayList<String> stringsWithHighestOccurrence = new ArrayList<String>();
131
132    for (String word : strList) {
133            for (int i = 1; i <= word.length(); i++){
134        String prefix = word.substring(0, i);
135        prefixMap.merge(prefix, 1, Integer::sum);
136      }
137        }
138
139    Integer maxval = Collections.max(prefixMap.values());
140
141    for (String key: prefixMap.keySet()){
142      Integer value = prefixMap.get(key);
143      if (value > 1) System.out.println(key + " : " + value);
144      if (value == maxval) stringsWithHighestOccurrence.add(key);
145    }
146
147    int maxLength = stringsWithHighestOccurrence.stream().map(String::length).max(Integer::compareTo).get();
148    
149    System.out.println(maxLength);
150
151    ArrayList<String> prefixesWithMaxLength =
152stringsWithHighestOccurrence.stream().filter(c -> c.length() == maxLength).collect(Collectors.toCollection(ArrayList::new));
153    System.out.println(prefixesWithMaxLength);
154  }
155}
156class TrieNode {
157    private final Map<Character, TrieNode> children = new HashMap<>();
158    private int count;
159
160    Map<Character, TrieNode> getChildren() {
161        return children;
162    }
163
164    boolean getCount() {
165        return count;
166    }
167
168    void increaseCount() {
169        this.count += 1;
170    }
171}
172class Trie {
173    private TrieNode root;
174
175    Trie() {
176        root = new TrieNode();
177    }
178
179    void insert(String word) {
180        TrieNode current = root;
181
182        for (char l : word.toCharArray()) {
183            current = current.getChildren().computeIfAbsent(l, c -> new TrieNode());
184            current.increaseCount()
185        }
186    }
187}
188

1[1, 7, 8, 4, 2, 1, 4]
2Original array:  [  1,   7,   8,   4,   2,   1,   4]
3
4Prefix averages: [1.0, 4.0, 5.3, 5.0, 4.4, 3.8, 3.9]
5
6-> Delete [1, 7, 8], with maximum average 5.3
7-> New array -> [4, 2, 1, 4]
8[1, 7, 8, 4, 2, 1, 4]
9^       ^
10[4, 2, 1, 4]
11^ ^
12[2, 1, 4]
13^       ^
14[]
15from fractions import Fraction
16def find_array_reductions(nums: List[int]) -> List[int]:
17    """Return list of lengths of max average prefix reductions."""
18
19    def max_prefix_avg(arr: List[int]) -> Tuple[float, int]:
20        """Return value and length of max average prefix in arr."""
21        if len(arr) == 0:
22            return (-math.inf, 0)
23
24        best_length = 1
25        best_average = Fraction(0, 1)
26        running_sum = 0
27
28        for i, x in enumerate(arr, 1):
29            running_sum += x
30            new_average = Fraction(running_sum, i)
31            if new_average >= best_average:
32                best_average = new_average
33                best_length = i
34
35        return (float(best_average), best_length)
36
37    removed_lengths = []
38    total_removed = 0
39
40    while total_removed < len(nums):
41        _, new_removal = max_prefix_avg(nums[total_removed:])
42        removed_lengths.append(new_removal)
43        total_removed += new_removal
44
45    return removed_lengths
46# Lengths of the segments in the upper convex hull
47# of the cumulative sum graph
48def upperSumHullLengths(arr):
49    if len(arr) < 2:
50        if len(arr) < 1:
51            return []
52        else:
53            return [1]
54    
55    hull = [(0, 0),(1, arr[0])]
56    for x in range(2, len(arr)+1):
57        # this has x coordinate x-1
58        prevPoint = hull[len(hull) - 1]
59        # next point in cumulative sum
60        point = (x, prevPoint[1] + arr[x-1])
61        # remove points not on the convex hull
62        while len(hull) >= 2:
63            p0 = hull[len(hull)-2]
64            dx0 = prevPoint[0] - p0[0]
65            dy0 = prevPoint[1] - p0[1]
66            dx1 = x - prevPoint[0]
67            dy1 = point[1] - prevPoint[1]
68            if dy1*dx0 < dy0*dx1:
69                break
70            hull.pop()
71            prevPoint = p0
72        hull.append(point)
73    
74    return [hull[i+1][0] - hull[i][0] for i in range(0, len(hull)-1)]
75
76
77print(upperSumHullLengths([  1,   7,   8,   4,   2,   1,   4]))
78

1[1, 7, 8, 4, 2, 1, 4]
2Original array:  [  1,   7,   8,   4,   2,   1,   4]
3
4Prefix averages: [1.0, 4.0, 5.3, 5.0, 4.4, 3.8, 3.9]
5
6-> Delete [1, 7, 8], with maximum average 5.3
7-> New array -> [4, 2, 1, 4]
8[1, 7, 8, 4, 2, 1, 4]
9^       ^
10[4, 2, 1, 4]
11^ ^
12[2, 1, 4]
13^       ^
14[]
15from fractions import Fraction
16def find_array_reductions(nums: List[int]) -> List[int]:
17    """Return list of lengths of max average prefix reductions."""
18
19    def max_prefix_avg(arr: List[int]) -> Tuple[float, int]:
20        """Return value and length of max average prefix in arr."""
21        if len(arr) == 0:
22            return (-math.inf, 0)
23
24        best_length = 1
25        best_average = Fraction(0, 1)
26        running_sum = 0
27
28        for i, x in enumerate(arr, 1):
29            running_sum += x
30            new_average = Fraction(running_sum, i)
31            if new_average >= best_average:
32                best_average = new_average
33                best_length = i
34
35        return (float(best_average), best_length)
36
37    removed_lengths = []
38    total_removed = 0
39
40    while total_removed < len(nums):
41        _, new_removal = max_prefix_avg(nums[total_removed:])
42        removed_lengths.append(new_removal)
43        total_removed += new_removal
44
45    return removed_lengths
46# Lengths of the segments in the upper convex hull
47# of the cumulative sum graph
48def upperSumHullLengths(arr):
49    if len(arr) < 2:
50        if len(arr) < 1:
51            return []
52        else:
53            return [1]
54    
55    hull = [(0, 0),(1, arr[0])]
56    for x in range(2, len(arr)+1):
57        # this has x coordinate x-1
58        prevPoint = hull[len(hull) - 1]
59        # next point in cumulative sum
60        point = (x, prevPoint[1] + arr[x-1])
61        # remove points not on the convex hull
62        while len(hull) >= 2:
63            p0 = hull[len(hull)-2]
64            dx0 = prevPoint[0] - p0[0]
65            dy0 = prevPoint[1] - p0[1]
66            dx1 = x - prevPoint[0]
67            dy1 = point[1] - prevPoint[1]
68            if dy1*dx0 < dy0*dx1:
69                break
70            hull.pop()
71            prevPoint = p0
72        hull.append(point)
73    
74    return [hull[i+1][0] - hull[i][0] for i in range(0, len(hull)-1)]
75
76
77print(upperSumHullLengths([  1,   7,   8,   4,   2,   1,   4]))
78[3, 1, 3]
79

1>>> import math
2>>> math.sqrt(9)
33.0
4

1>>> import math
2>>> math.sqrt(9)
33.0
4>>> 9 ** (1/2)
53.0
6>>> 9 ** .5  # Same thing
73.0
8>>> 2 ** .5
91.4142135623730951
10

1>>> import math
2>>> math.sqrt(9)
33.0
4>>> 9 ** (1/2)
53.0
6>>> 9 ** .5  # Same thing
73.0
8>>> 2 ** .5
91.4142135623730951
10>>> 8 ** (1/3)
112.0
12>>> 125 ** (1/3)
134.999999999999999
14

1>>> import math
2>>> math.sqrt(9)
33.0
4>>> 9 ** (1/2)
53.0
6>>> 9 ** .5  # Same thing
73.0
8>>> 2 ** .5
91.4142135623730951
10>>> 8 ** (1/3)
112.0
12>>> 125 ** (1/3)
134.999999999999999
14>>> (-25) ** .5  # Should be 5j
15(3.061616997868383e-16+5j)
16>>> 8j ** .5  # Should be 2+2j
17(2.0000000000000004+2j)
18

1>>> import math
2>>> math.sqrt(9)
33.0
4>>> 9 ** (1/2)
53.0
6>>> 9 ** .5  # Same thing
73.0
8>>> 2 ** .5
91.4142135623730951
10>>> 8 ** (1/3)
112.0
12>>> 125 ** (1/3)
134.999999999999999
14>>> (-25) ** .5  # Should be 5j
15(3.061616997868383e-16+5j)
16>>> 8j ** .5  # Should be 2+2j
17(2.0000000000000004+2j)
18>>> import cmath
19>>> cmath.sqrt(-25)
205j
21>>> cmath.sqrt(8j)
22(2+2j)
23

1>>> import math
2>>> math.sqrt(9)
33.0
4>>> 9 ** (1/2)
53.0
6>>> 9 ** .5  # Same thing
73.0
8>>> 2 ** .5
91.4142135623730951
10>>> 8 ** (1/3)
112.0
12>>> 125 ** (1/3)
134.999999999999999
14>>> (-25) ** .5  # Should be 5j
15(3.061616997868383e-16+5j)
16>>> 8j ** .5  # Should be 2+2j
17(2.0000000000000004+2j)
18>>> import cmath
19>>> cmath.sqrt(-25)
205j
21>>> cmath.sqrt(8j)
22(2+2j)
23>>> n = 10**30
24>>> square = n**2
25>>> x = square**.5
26>>> x == n
27False
28>>> x - n  # how far off are they?
290.0
30>>> int(x) - n  # how far off is the float from the int?
3119884624838656
32

1>>> import math
2>>> math.sqrt(9)
33.0
4>>> 9 ** (1/2)
53.0
6>>> 9 ** .5  # Same thing
73.0
8>>> 2 ** .5
91.4142135623730951
10>>> 8 ** (1/3)
112.0
12>>> 125 ** (1/3)
134.999999999999999
14>>> (-25) ** .5  # Should be 5j
15(3.061616997868383e-16+5j)
16>>> 8j ** .5  # Should be 2+2j
17(2.0000000000000004+2j)
18>>> import cmath
19>>> cmath.sqrt(-25)
205j
21>>> cmath.sqrt(8j)
22(2+2j)
23>>> n = 10**30
24>>> square = n**2
25>>> x = square**.5
26>>> x == n
27False
28>>> x - n  # how far off are they?
290.0
30>>> int(x) - n  # how far off is the float from the int?
3119884624838656
32>>> decimal.Decimal('9') ** .5
33Traceback (most recent call last):
34  File "<stdin>", line 1, in <module>
35TypeError: unsupported operand type(s) for ** or pow(): 'decimal.Decimal' and 'float'
36>>> decimal.Decimal('9') ** decimal.Decimal('.5')
37Decimal('3.000000000000000000000000000')
38

1CONTAINER ID   IMAGE                      COMMAND                CREATED          STATUS                      PORTS     NAMES
2ae327a2bdba3   k8s-for-beginners:v0.0.1   "/k8s-for-beginners"   11 seconds ago   Exited (1) 10 seconds ago             focused_booth
3standard_init_linux.go:228: exec user process caused: no such file or directory
4FROM alpine:3.10
5COPY k8s-for-beginners /
6CMD ["/k8s-for-beginners"]
7package main
8
9import (
10    "fmt"
11    "log"
12    "net/http"
13)
14
15func main() {
16    http.HandleFunc("/", handler)
17    log.Fatal(http.ListenAndServe("0.0.0.0:8080", nil))
18}
19
20func handler(w http.ResponseWriter, r *http.Request) {
21    log.Printf("Ping from %s", r.RemoteAddr)
22    fmt.Fprintln(w, "Hello Kubernetes Beginners!")
23}
24CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o k8s-for-beginners
25sudo docker build -t k8s-for-beginners:v0.0.1 .
26sudo docker run -p 8080:8080 -d k8s-for-beginners:v0.0.1
27        /lib64/ld-linux-x86-64.so.2 (0x7f9ab5778000)
28        libc.so.6 => /lib64/ld-linux-x86-64.so.2 (0x7f9ab5778000)
29Error loading shared library libgo.so.16: No such file or directory (needed by /k8s-for-beginners)
30Error loading shared library libgcc_s.so.1: No such file or directory (needed by /k8s-for-beginners)
31Error loading shared library ld-linux-x86-64.so.2: No such file or directory (needed by /k8s-for-beginners)
32Error relocating /k8s-for-beginners: crypto..z2frsa..import: symbol not found
33Error relocating /k8s-for-beginners: crypto..z2fx509..import: symbol not found
34Error relocating /k8s-for-beginners: log..import: symbol not found
35Error relocating /k8s-for-beginners: crypto..z2fmd5..import: symbol not found
36Error relocating /k8s-for-beginners: crypto..import: symbol not found
37Error relocating /k8s-for-beginners: bytes..import: symbol not found
38Error relocating /k8s-for-beginners: fmt.Fprintln: symbol not found
39Error relocating /k8s-for-beginners: crypto..z2felliptic..import: symbol not found
40Error relocating /k8s-for-beginners: crypto..z2fx509..z2fpkix..import: symbol not found
41Error relocating /k8s-for-beginners: crypto..z2frand..import: symbol not found
42Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fchacha20poly1305..import: symbol not found
43Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fcurve25519..import: symbol not found
44Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fidna..import: symbol not found
45Error relocating /k8s-for-beginners: internal..z2foserror..import: symbol not found
46Error relocating /k8s-for-beginners: crypto..z2fecdsa..import: symbol not found
47Error relocating /k8s-for-beginners: net..z2fhttp.HandleFunc: symbol not found
48Error relocating /k8s-for-beginners: io..import: symbol not found
49Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fhttp2..z2fhpack..import: symbol not found
50Error relocating /k8s-for-beginners: crypto..z2fcipher..import: symbol not found
51Error relocating /k8s-for-beginners: log.Fatal: symbol not found
52Error relocating /k8s-for-beginners: math..z2fbig..import: symbol not found
53Error relocating /k8s-for-beginners: runtime..import: symbol not found
54Error relocating /k8s-for-beginners: net..z2fhttp..import: symbol not found
55Error relocating /k8s-for-beginners: hash..z2fcrc32..import: symbol not found
56Error relocating /k8s-for-beginners: net..z2fhttp.ListenAndServe: symbol not found
57Error relocating /k8s-for-beginners: context..import: symbol not found
58Error relocating /k8s-for-beginners: fmt..import: symbol not found
59Error relocating /k8s-for-beginners: crypto..z2ftls..import: symbol not found
60Error relocating /k8s-for-beginners: errors..import: symbol not found
61Error relocating /k8s-for-beginners: internal..z2ftestlog..import: symbol not found
62Error relocating /k8s-for-beginners: runtime.setIsCgo: symbol not found
63Error relocating /k8s-for-beginners: runtime_m: symbol not found
64Error relocating /k8s-for-beginners: encoding..z2fhex..import: symbol not found
65Error relocating /k8s-for-beginners: mime..import: symbol not found
66Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2funicode..z2fbidi..import: symbol not found
67Error relocating /k8s-for-beginners: internal..z2freflectlite..import: symbol not found
68Error relocating /k8s-for-beginners: compress..z2fgzip..import: symbol not found
69Error relocating /k8s-for-beginners: sync..import: symbol not found
70Error relocating /k8s-for-beginners: compress..z2fflate..import: symbol not found
71Error relocating /k8s-for-beginners: encoding..z2fbinary..import: symbol not found
72Error relocating /k8s-for-beginners: math..z2frand..import: symbol not found
73Error relocating /k8s-for-beginners: runtime_cpuinit: symbol not found
74Error relocating /k8s-for-beginners: internal..z2fpoll..import: symbol not found
75Error relocating /k8s-for-beginners: mime..z2fmultipart..import: symbol not found
76Error relocating /k8s-for-beginners: runtime.check: symbol not found
77Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fcryptobyte..import: symbol not found
78Error relocating /k8s-for-beginners: crypto..z2fsha512..import: symbol not found
79Error relocating /k8s-for-beginners: runtime.registerTypeDescriptors: symbol not found
80Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fchacha20..import: symbol not found
81Error relocating /k8s-for-beginners: runtime.setmodinfo: symbol not found
82Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2ftransform..import: symbol not found
83Error relocating /k8s-for-beginners: time..import: symbol not found
84Error relocating /k8s-for-beginners: encoding..z2fbase64..import: symbol not found
85Error relocating /k8s-for-beginners: crypto..z2fsha256..import: symbol not found
86Error relocating /k8s-for-beginners: __go_go: symbol not found
87Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fhttp..z2fhttpguts..import: symbol not found
88Error relocating /k8s-for-beginners: path..z2ffilepath..import: symbol not found
89Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2fsecure..z2fbidirule..import: symbol not found
90Error relocating /k8s-for-beginners: os..import: symbol not found
91Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fhttp..z2fhttpproxy..import: symbol not found
92Error relocating /k8s-for-beginners: net..z2ftextproto..import: symbol not found
93Error relocating /k8s-for-beginners: encoding..z2fasn1..import: symbol not found
94Error relocating /k8s-for-beginners: runtime.requireitab: symbol not found
95Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fdns..z2fdnsmessage..import: symbol not found
96Error relocating /k8s-for-beginners: path..import: symbol not found
97Error relocating /k8s-for-beginners: io..z2fioutil..import: symbol not found
98Error relocating /k8s-for-beginners: sort..import: symbol not found
99Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2funicode..z2fnorm..import: symbol not found
100Error relocating /k8s-for-beginners: internal..z2fcpu..import: symbol not found
101Error relocating /k8s-for-beginners: runtime.ginit: symbol not found
102Error relocating /k8s-for-beginners: runtime.osinit: symbol not found
103Error relocating /k8s-for-beginners: runtime.schedinit: symbol not found
104Error relocating /k8s-for-beginners: bufio..import: symbol not found
105Error relocating /k8s-for-beginners: crypto..z2finternal..z2frandutil..import: symbol not found
106Error relocating /k8s-for-beginners: runtime_mstart: symbol not found
107Error relocating /k8s-for-beginners: net..import: symbol not found
108Error relocating /k8s-for-beginners: strconv..import: symbol not found
109Error relocating /k8s-for-beginners: runtime.args: symbol not found
110Error relocating /k8s-for-beginners: runtime..z2finternal..z2fsys..import: symbol not found
111Error relocating /k8s-for-beginners: runtime.newobject: symbol not found
112Error relocating /k8s-for-beginners: syscall..import: symbol not found
113Error relocating /k8s-for-beginners: unicode..import: symbol not found
114Error relocating /k8s-for-beginners: net..z2fhttp..z2finternal..import: symbol not found
115Error relocating /k8s-for-beginners: encoding..z2fpem..import: symbol not found
116Error relocating /k8s-for-beginners: _Unwind_Resume: symbol not found
117Error relocating /k8s-for-beginners: reflect..import: symbol not found
118Error relocating /k8s-for-beginners: mime..z2fquotedprintable..import: symbol not found
119Error relocating /k8s-for-beginners: log.Printf: symbol not found
120Error relocating /k8s-for-beginners: runtime.typedmemmove: symbol not found
121Error relocating /k8s-for-beginners: crypto..z2fdsa..import: symbol not found
122Error relocating /k8s-for-beginners: crypto..z2fsha1..import: symbol not found
123Error relocating /k8s-for-beginners: bufio..types: symbol not found
124Error relocating /k8s-for-beginners: bytes..types: symbol not found
125Error relocating /k8s-for-beginners: compress..z2fflate..types: symbol not found
126Error relocating /k8s-for-beginners: compress..z2fgzip..types: symbol not found
127Error relocating /k8s-for-beginners: context..types: symbol not found
128Error relocating /k8s-for-beginners: crypto..types: symbol not found
129Error relocating /k8s-for-beginners: crypto..z2fcipher..types: symbol not found
130Error relocating /k8s-for-beginners: crypto..z2fdsa..types: symbol not found
131Error relocating /k8s-for-beginners: crypto..z2fecdsa..types: symbol not found
132Error relocating /k8s-for-beginners: crypto..z2felliptic..types: symbol not found
133Error relocating /k8s-for-beginners: crypto..z2finternal..z2frandutil..types: symbol not found
134Error relocating /k8s-for-beginners: crypto..z2fmd5..types: symbol not found
135Error relocating /k8s-for-beginners: crypto..z2frand..types: symbol not found
136Error relocating /k8s-for-beginners: crypto..z2frsa..types: symbol not found
137Error relocating /k8s-for-beginners: crypto..z2fsha1..types: symbol not found
138Error relocating /k8s-for-beginners: crypto..z2fsha256..types: symbol not found
139Error relocating /k8s-for-beginners: crypto..z2fsha512..types: symbol not found
140Error relocating /k8s-for-beginners: crypto..z2ftls..types: symbol not found
141Error relocating /k8s-for-beginners: crypto..z2fx509..types: symbol not found
142Error relocating /k8s-for-beginners: crypto..z2fx509..z2fpkix..types: symbol not found
143Error relocating /k8s-for-beginners: encoding..z2fasn1..types: symbol not found
144Error relocating /k8s-for-beginners: encoding..z2fbase64..types: symbol not found
145Error relocating /k8s-for-beginners: encoding..z2fbinary..types: symbol not found
146Error relocating /k8s-for-beginners: encoding..z2fhex..types: symbol not found
147Error relocating /k8s-for-beginners: encoding..z2fpem..types: symbol not found
148Error relocating /k8s-for-beginners: errors..types: symbol not found
149Error relocating /k8s-for-beginners: fmt..types: symbol not found
150Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fchacha20..types: symbol not found
151Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fchacha20poly1305..types: symbol not found
152Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fcryptobyte..types: symbol not found
153Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fcurve25519..types: symbol not found
154Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fdns..z2fdnsmessage..types: symbol not found
155Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fhttp..z2fhttpguts..types: symbol not found
156Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fhttp..z2fhttpproxy..types: symbol not found
157Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fhttp2..z2fhpack..types: symbol not found
158Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fidna..types: symbol not found
159Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2fsecure..z2fbidirule..types: symbol not found
160Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2ftransform..types: symbol not found
161Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2funicode..z2fbidi..types: symbol not found
162Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2funicode..z2fnorm..types: symbol not found
163Error relocating /k8s-for-beginners: hash..z2fcrc32..types: symbol not found
164Error relocating /k8s-for-beginners: internal..z2fcpu..types: symbol not found
165Error relocating /k8s-for-beginners: internal..z2foserror..types: symbol not found
166Error relocating /k8s-for-beginners: internal..z2fpoll..types: symbol not found
167Error relocating /k8s-for-beginners: internal..z2freflectlite..types: symbol not found
168Error relocating /k8s-for-beginners: internal..z2ftestlog..types: symbol not found
169Error relocating /k8s-for-beginners: io..types: symbol not found
170Error relocating /k8s-for-beginners: io..z2fioutil..types: symbol not found
171Error relocating /k8s-for-beginners: log..types: symbol not found
172Error relocating /k8s-for-beginners: math..z2fbig..types: symbol not found
173Error relocating /k8s-for-beginners: math..z2frand..types: symbol not found
174Error relocating /k8s-for-beginners: mime..types: symbol not found
175Error relocating /k8s-for-beginners: mime..z2fmultipart..types: symbol not found
176Error relocating /k8s-for-beginners: mime..z2fquotedprintable..types: symbol not found
177Error relocating /k8s-for-beginners: net..types: symbol not found
178Error relocating /k8s-for-beginners: net..z2fhttp..types: symbol not found
179Error relocating /k8s-for-beginners: net..z2fhttp..z2finternal..types: symbol not found
180Error relocating /k8s-for-beginners: net..z2ftextproto..types: symbol not found
181Error relocating /k8s-for-beginners: os..types: symbol not found
182Error relocating /k8s-for-beginners: path..types: symbol not found
183Error relocating /k8s-for-beginners: path..z2ffilepath..types: symbol not found
184Error relocating /k8s-for-beginners: reflect..types: symbol not found
185Error relocating /k8s-for-beginners: runtime..types: symbol not found
186Error relocating /k8s-for-beginners: runtime..z2finternal..z2fsys..types: symbol not found
187Error relocating /k8s-for-beginners: sort..types: symbol not found
188Error relocating /k8s-for-beginners: strconv..types: symbol not found
189Error relocating /k8s-for-beginners: sync..types: symbol not found
190Error relocating /k8s-for-beginners: syscall..types: symbol not found
191Error relocating /k8s-for-beginners: time..types: symbol not found
192Error relocating /k8s-for-beginners: unicode..types: symbol not found
193Error relocating /k8s-for-beginners: container..z2flist..types: symbol not found
194Error relocating /k8s-for-beginners: crypto..z2faes..types: symbol not found
195Error relocating /k8s-for-beginners: crypto..z2fdes..types: symbol not found
196Error relocating /k8s-for-beginners: crypto..z2fed25519..types: symbol not found
197Error relocating /k8s-for-beginners: crypto..z2fed25519..z2finternal..z2fedwards25519..types: symbol not found
198Error relocating /k8s-for-beginners: crypto..z2fhmac..types: symbol not found
199Error relocating /k8s-for-beginners: crypto..z2finternal..z2fsubtle..types: symbol not found
200Error relocating /k8s-for-beginners: crypto..z2frc4..types: symbol not found
201Error relocating /k8s-for-beginners: crypto..z2fsubtle..types: symbol not found
202Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fcryptobyte..z2fasn1..types: symbol not found
203Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fhkdf..types: symbol not found
204Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2finternal..z2fsubtle..types: symbol not found
205Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fpoly1305..types: symbol not found
206Error relocating /k8s-for-beginners: hash..types: symbol not found
207Error relocating /k8s-for-beginners: internal..z2fbytealg..types: symbol not found
208Error relocating /k8s-for-beginners: internal..z2ffmtsort..types: symbol not found
209Error relocating /k8s-for-beginners: internal..z2fnettrace..types: symbol not found
210Error relocating /k8s-for-beginners: internal..z2frace..types: symbol not found
211Error relocating /k8s-for-beginners: internal..z2fsingleflight..types: symbol not found
212Error relocating /k8s-for-beginners: internal..z2fsyscall..z2fexecenv..types: symbol not found
213Error relocating /k8s-for-beginners: internal..z2fsyscall..z2funix..types: symbol not found
214Error relocating /k8s-for-beginners: math..types: symbol not found
215Error relocating /k8s-for-beginners: math..z2fbits..types: symbol not found
216Error relocating /k8s-for-beginners: net..z2fhttp..z2fhttptrace..types: symbol not found
217Error relocating /k8s-for-beginners: net..z2furl..types: symbol not found
218Error relocating /k8s-for-beginners: runtime..z2finternal..z2fatomic..types: symbol not found
219Error relocating /k8s-for-beginners: runtime..z2finternal..z2fmath..types: symbol not found
220Error relocating /k8s-for-beginners: strings..types: symbol not found
221Error relocating /k8s-for-beginners: sync..z2fatomic..types: symbol not found
222Error relocating /k8s-for-beginners: unicode..z2futf16..types: symbol not found
223Error relocating /k8s-for-beginners: unicode..z2futf8..types: symbol not found
224Error relocating /k8s-for-beginners: runtime.strequal..f: symbol not found
225Error relocating /k8s-for-beginners: runtime.memequal64..f: symbol not found
226Error relocating /k8s-for-beginners: type...1reflect.rtype: symbol not found
227Error relocating /k8s-for-beginners: reflect.rtype.Align: symbol not found
228Error relocating /k8s-for-beginners: reflect.rtype.Align: symbol not found
229Error relocating /k8s-for-beginners: reflect.rtype.AssignableTo: symbol not found
230Error relocating /k8s-for-beginners: reflect.rtype.AssignableTo: symbol not found
231Error relocating /k8s-for-beginners: reflect.rtype.Bits: symbol not found
232Error relocating /k8s-for-beginners: reflect.rtype.Bits: symbol not found
233Error relocating /k8s-for-beginners: reflect.rtype.ChanDir: symbol not found
234Error relocating /k8s-for-beginners: reflect.rtype.ChanDir: symbol not found
235Error relocating /k8s-for-beginners: reflect.rtype.Comparable: symbol not found
236Error relocating /k8s-for-beginners: reflect.rtype.Comparable: symbol not found
237Error relocating /k8s-for-beginners: reflect.rtype.ConvertibleTo: symbol not found
238Error relocating /k8s-for-beginners: reflect.rtype.ConvertibleTo: symbol not found
239Error relocating /k8s-for-beginners: reflect.rtype.Elem: symbol not found
240Error relocating /k8s-for-beginners: reflect.rtype.Elem: symbol not found
241Error relocating /k8s-for-beginners: reflect.rtype.Field: symbol not found
242Error relocating /k8s-for-beginners: reflect.rtype.Field: symbol not found
243Error relocating /k8s-for-beginners: reflect.rtype.FieldAlign: symbol not found
244Error relocating /k8s-for-beginners: reflect.rtype.FieldAlign: symbol not found
245Error relocating /k8s-for-beginners: reflect.rtype.FieldByIndex: symbol not found
246Error relocating /k8s-for-beginners: reflect.rtype.FieldByIndex: symbol not found
247Error relocating /k8s-for-beginners: reflect.rtype.FieldByName: symbol not found
248Error relocating /k8s-for-beginners: reflect.rtype.FieldByName: symbol not found
249Error relocating /k8s-for-beginners: reflect.rtype.FieldByNameFunc: symbol not found
250Error relocating /k8s-for-beginners: reflect.rtype.FieldByNameFunc: symbol not found
251Error relocating /k8s-for-beginners: reflect.rtype.Implements: symbol not found
252Error relocating /k8s-for-beginners: reflect.rtype.Implements: symbol not found
253Error relocating /k8s-for-beginners: reflect.rtype.In: symbol not found
254Error relocating /k8s-for-beginners: reflect.rtype.In: symbol not found
255Error relocating /k8s-for-beginners: reflect.rtype.IsVariadic: symbol not found
256Error relocating /k8s-for-beginners: reflect.rtype.IsVariadic: symbol not found
257Error relocating /k8s-for-beginners: reflect.rtype.Key: symbol not found
258Error relocating /k8s-for-beginners: reflect.rtype.Key: symbol not found
259Error relocating /k8s-for-beginners: reflect.rtype.Kind: symbol not found
260Error relocating /k8s-for-beginners: reflect.rtype.Kind: symbol not found
261Error relocating /k8s-for-beginners: reflect.rtype.Len: symbol not found
262Error relocating /k8s-for-beginners: reflect.rtype.Len: symbol not found
263Error relocating /k8s-for-beginners: reflect.rtype.Method: symbol not found
264Error relocating /k8s-for-beginners: reflect.rtype.Method: symbol not found
265Error relocating /k8s-for-beginners: reflect.rtype.MethodByName: symbol not found
266Error relocating /k8s-for-beginners: reflect.rtype.MethodByName: symbol not found
267Error relocating /k8s-for-beginners: reflect.rtype.Name: symbol not found
268Error relocating /k8s-for-beginners: reflect.rtype.Name: symbol not found
269Error relocating /k8s-for-beginners: reflect.rtype.NumField: symbol not found
270Error relocating /k8s-for-beginners: reflect.rtype.NumField: symbol not found
271Error relocating /k8s-for-beginners: reflect.rtype.NumIn: symbol not found
272Error relocating /k8s-for-beginners: reflect.rtype.NumIn: symbol not found
273Error relocating /k8s-for-beginners: reflect.rtype.NumMethod: symbol not found
274Error relocating /k8s-for-beginners: reflect.rtype.NumMethod: symbol not found
275Error relocating /k8s-for-beginners: reflect.rtype.NumOut: symbol not found
276Error relocating /k8s-for-beginners: reflect.rtype.NumOut: symbol not found
277Error relocating /k8s-for-beginners: reflect.rtype.Out: symbol not found
278Error relocating /k8s-for-beginners: reflect.rtype.Out: symbol not found
279Error relocating /k8s-for-beginners: reflect.rtype.PkgPath: symbol not found
280Error relocating /k8s-for-beginners: reflect.rtype.PkgPath: symbol not found
281Error relocating /k8s-for-beginners: reflect.rtype.Size: symbol not found
282Error relocating /k8s-for-beginners: reflect.rtype.Size: symbol not found
283Error relocating /k8s-for-beginners: reflect.rtype.String: symbol not found
284Error relocating /k8s-for-beginners: reflect.rtype.String: symbol not found
285Error relocating /k8s-for-beginners: reflect.rtype.common: symbol not found
286Error relocating /k8s-for-beginners: reflect.rtype.common: symbol not found
287Error relocating /k8s-for-beginners: reflect.rtype.rawString: symbol not found
288Error relocating /k8s-for-beginners: reflect.rtype.rawString: symbol not found
289Error relocating /k8s-for-beginners: reflect.rtype.uncommon..stub: symbol not found
290Error relocating /k8s-for-beginners: reflect.rtype.uncommon..stub: symbol not found
291Error relocating /k8s-for-beginners: reflect..reflect.rtype..d: symbol not found
292Error relocating /k8s-for-beginners: type...1net.IPAddr: symbol not found
293Error relocating /k8s-for-beginners: net.IPAddr.Network: symbol not found
294Error relocating /k8s-for-beginners: net.IPAddr.Network: symbol not found
295Error relocating /k8s-for-beginners: net.IPAddr.String: symbol not found
296Error relocating /k8s-for-beginners: net.IPAddr.String: symbol not found
297Error relocating /k8s-for-beginners: net.IPAddr.family: symbol not found
298Error relocating /k8s-for-beginners: net.IPAddr.family: symbol not found
299Error relocating /k8s-for-beginners: net.IPAddr.isWildcard: symbol not found
300Error relocating /k8s-for-beginners: net.IPAddr.isWildcard: symbol not found
301Error relocating /k8s-for-beginners: net.IPAddr.sockaddr: symbol not found
302Error relocating /k8s-for-beginners: net.IPAddr.sockaddr: symbol not found
303Error relocating /k8s-for-beginners: net.IPAddr.toLocal: symbol not found
304Error relocating /k8s-for-beginners: net.IPAddr.toLocal: symbol not found
305Error relocating /k8s-for-beginners: net.IPAddr..d: symbol not found
306Error relocating /k8s-for-beginners: runtime.main: symbol not found
307Error relocating /k8s-for-beginners: runtime_iscgo: symbol not found
308Error relocating /k8s-for-beginners: runtime_isstarted: symbol not found
309Error relocating /k8s-for-beginners: runtime_isarchive: symbol not found
310Error relocating /k8s-for-beginners: __gcc_personality_v0: symbol not found
311Error relocating /k8s-for-beginners: io.Writer..d: symbol not found
312Error relocating /k8s-for-beginners: runtime.writeBarrier: symbol not found
313
314FROM golang:1.17 as builder
315
316# first (build) stage
317
318WORKDIR /app
319COPY . .
320RUN go mod download
321RUN CGO_ENABLED=0 go build -o k8s-for-beginners
322
323# final (target) stage
324
325FROM alpine:3.10
326COPY --from=builder /app/k8s-for-beginners /
327CMD ["/k8s-for-beginners"]
328

1CONTAINER ID   IMAGE                      COMMAND                CREATED          STATUS                      PORTS     NAMES
2ae327a2bdba3   k8s-for-beginners:v0.0.1   "/k8s-for-beginners"   11 seconds ago   Exited (1) 10 seconds ago             focused_booth
3standard_init_linux.go:228: exec user process caused: no such file or directory
4FROM alpine:3.10
5COPY k8s-for-beginners /
6CMD ["/k8s-for-beginners"]
7package main
8
9import (
10    "fmt"
11    "log"
12    "net/http"
13)
14
15func main() {
16    http.HandleFunc("/", handler)
17    log.Fatal(http.ListenAndServe("0.0.0.0:8080", nil))
18}
19
20func handler(w http.ResponseWriter, r *http.Request) {
21    log.Printf("Ping from %s", r.RemoteAddr)
22    fmt.Fprintln(w, "Hello Kubernetes Beginners!")
23}
24CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o k8s-for-beginners
25sudo docker build -t k8s-for-beginners:v0.0.1 .
26sudo docker run -p 8080:8080 -d k8s-for-beginners:v0.0.1
27        /lib64/ld-linux-x86-64.so.2 (0x7f9ab5778000)
28        libc.so.6 => /lib64/ld-linux-x86-64.so.2 (0x7f9ab5778000)
29Error loading shared library libgo.so.16: No such file or directory (needed by /k8s-for-beginners)
30Error loading shared library libgcc_s.so.1: No such file or directory (needed by /k8s-for-beginners)
31Error loading shared library ld-linux-x86-64.so.2: No such file or directory (needed by /k8s-for-beginners)
32Error relocating /k8s-for-beginners: crypto..z2frsa..import: symbol not found
33Error relocating /k8s-for-beginners: crypto..z2fx509..import: symbol not found
34Error relocating /k8s-for-beginners: log..import: symbol not found
35Error relocating /k8s-for-beginners: crypto..z2fmd5..import: symbol not found
36Error relocating /k8s-for-beginners: crypto..import: symbol not found
37Error relocating /k8s-for-beginners: bytes..import: symbol not found
38Error relocating /k8s-for-beginners: fmt.Fprintln: symbol not found
39Error relocating /k8s-for-beginners: crypto..z2felliptic..import: symbol not found
40Error relocating /k8s-for-beginners: crypto..z2fx509..z2fpkix..import: symbol not found
41Error relocating /k8s-for-beginners: crypto..z2frand..import: symbol not found
42Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fchacha20poly1305..import: symbol not found
43Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fcurve25519..import: symbol not found
44Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fidna..import: symbol not found
45Error relocating /k8s-for-beginners: internal..z2foserror..import: symbol not found
46Error relocating /k8s-for-beginners: crypto..z2fecdsa..import: symbol not found
47Error relocating /k8s-for-beginners: net..z2fhttp.HandleFunc: symbol not found
48Error relocating /k8s-for-beginners: io..import: symbol not found
49Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fhttp2..z2fhpack..import: symbol not found
50Error relocating /k8s-for-beginners: crypto..z2fcipher..import: symbol not found
51Error relocating /k8s-for-beginners: log.Fatal: symbol not found
52Error relocating /k8s-for-beginners: math..z2fbig..import: symbol not found
53Error relocating /k8s-for-beginners: runtime..import: symbol not found
54Error relocating /k8s-for-beginners: net..z2fhttp..import: symbol not found
55Error relocating /k8s-for-beginners: hash..z2fcrc32..import: symbol not found
56Error relocating /k8s-for-beginners: net..z2fhttp.ListenAndServe: symbol not found
57Error relocating /k8s-for-beginners: context..import: symbol not found
58Error relocating /k8s-for-beginners: fmt..import: symbol not found
59Error relocating /k8s-for-beginners: crypto..z2ftls..import: symbol not found
60Error relocating /k8s-for-beginners: errors..import: symbol not found
61Error relocating /k8s-for-beginners: internal..z2ftestlog..import: symbol not found
62Error relocating /k8s-for-beginners: runtime.setIsCgo: symbol not found
63Error relocating /k8s-for-beginners: runtime_m: symbol not found
64Error relocating /k8s-for-beginners: encoding..z2fhex..import: symbol not found
65Error relocating /k8s-for-beginners: mime..import: symbol not found
66Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2funicode..z2fbidi..import: symbol not found
67Error relocating /k8s-for-beginners: internal..z2freflectlite..import: symbol not found
68Error relocating /k8s-for-beginners: compress..z2fgzip..import: symbol not found
69Error relocating /k8s-for-beginners: sync..import: symbol not found
70Error relocating /k8s-for-beginners: compress..z2fflate..import: symbol not found
71Error relocating /k8s-for-beginners: encoding..z2fbinary..import: symbol not found
72Error relocating /k8s-for-beginners: math..z2frand..import: symbol not found
73Error relocating /k8s-for-beginners: runtime_cpuinit: symbol not found
74Error relocating /k8s-for-beginners: internal..z2fpoll..import: symbol not found
75Error relocating /k8s-for-beginners: mime..z2fmultipart..import: symbol not found
76Error relocating /k8s-for-beginners: runtime.check: symbol not found
77Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fcryptobyte..import: symbol not found
78Error relocating /k8s-for-beginners: crypto..z2fsha512..import: symbol not found
79Error relocating /k8s-for-beginners: runtime.registerTypeDescriptors: symbol not found
80Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fchacha20..import: symbol not found
81Error relocating /k8s-for-beginners: runtime.setmodinfo: symbol not found
82Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2ftransform..import: symbol not found
83Error relocating /k8s-for-beginners: time..import: symbol not found
84Error relocating /k8s-for-beginners: encoding..z2fbase64..import: symbol not found
85Error relocating /k8s-for-beginners: crypto..z2fsha256..import: symbol not found
86Error relocating /k8s-for-beginners: __go_go: symbol not found
87Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fhttp..z2fhttpguts..import: symbol not found
88Error relocating /k8s-for-beginners: path..z2ffilepath..import: symbol not found
89Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2fsecure..z2fbidirule..import: symbol not found
90Error relocating /k8s-for-beginners: os..import: symbol not found
91Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fhttp..z2fhttpproxy..import: symbol not found
92Error relocating /k8s-for-beginners: net..z2ftextproto..import: symbol not found
93Error relocating /k8s-for-beginners: encoding..z2fasn1..import: symbol not found
94Error relocating /k8s-for-beginners: runtime.requireitab: symbol not found
95Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fdns..z2fdnsmessage..import: symbol not found
96Error relocating /k8s-for-beginners: path..import: symbol not found
97Error relocating /k8s-for-beginners: io..z2fioutil..import: symbol not found
98Error relocating /k8s-for-beginners: sort..import: symbol not found
99Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2funicode..z2fnorm..import: symbol not found
100Error relocating /k8s-for-beginners: internal..z2fcpu..import: symbol not found
101Error relocating /k8s-for-beginners: runtime.ginit: symbol not found
102Error relocating /k8s-for-beginners: runtime.osinit: symbol not found
103Error relocating /k8s-for-beginners: runtime.schedinit: symbol not found
104Error relocating /k8s-for-beginners: bufio..import: symbol not found
105Error relocating /k8s-for-beginners: crypto..z2finternal..z2frandutil..import: symbol not found
106Error relocating /k8s-for-beginners: runtime_mstart: symbol not found
107Error relocating /k8s-for-beginners: net..import: symbol not found
108Error relocating /k8s-for-beginners: strconv..import: symbol not found
109Error relocating /k8s-for-beginners: runtime.args: symbol not found
110Error relocating /k8s-for-beginners: runtime..z2finternal..z2fsys..import: symbol not found
111Error relocating /k8s-for-beginners: runtime.newobject: symbol not found
112Error relocating /k8s-for-beginners: syscall..import: symbol not found
113Error relocating /k8s-for-beginners: unicode..import: symbol not found
114Error relocating /k8s-for-beginners: net..z2fhttp..z2finternal..import: symbol not found
115Error relocating /k8s-for-beginners: encoding..z2fpem..import: symbol not found
116Error relocating /k8s-for-beginners: _Unwind_Resume: symbol not found
117Error relocating /k8s-for-beginners: reflect..import: symbol not found
118Error relocating /k8s-for-beginners: mime..z2fquotedprintable..import: symbol not found
119Error relocating /k8s-for-beginners: log.Printf: symbol not found
120Error relocating /k8s-for-beginners: runtime.typedmemmove: symbol not found
121Error relocating /k8s-for-beginners: crypto..z2fdsa..import: symbol not found
122Error relocating /k8s-for-beginners: crypto..z2fsha1..import: symbol not found
123Error relocating /k8s-for-beginners: bufio..types: symbol not found
124Error relocating /k8s-for-beginners: bytes..types: symbol not found
125Error relocating /k8s-for-beginners: compress..z2fflate..types: symbol not found
126Error relocating /k8s-for-beginners: compress..z2fgzip..types: symbol not found
127Error relocating /k8s-for-beginners: context..types: symbol not found
128Error relocating /k8s-for-beginners: crypto..types: symbol not found
129Error relocating /k8s-for-beginners: crypto..z2fcipher..types: symbol not found
130Error relocating /k8s-for-beginners: crypto..z2fdsa..types: symbol not found
131Error relocating /k8s-for-beginners: crypto..z2fecdsa..types: symbol not found
132Error relocating /k8s-for-beginners: crypto..z2felliptic..types: symbol not found
133Error relocating /k8s-for-beginners: crypto..z2finternal..z2frandutil..types: symbol not found
134Error relocating /k8s-for-beginners: crypto..z2fmd5..types: symbol not found
135Error relocating /k8s-for-beginners: crypto..z2frand..types: symbol not found
136Error relocating /k8s-for-beginners: crypto..z2frsa..types: symbol not found
137Error relocating /k8s-for-beginners: crypto..z2fsha1..types: symbol not found
138Error relocating /k8s-for-beginners: crypto..z2fsha256..types: symbol not found
139Error relocating /k8s-for-beginners: crypto..z2fsha512..types: symbol not found
140Error relocating /k8s-for-beginners: crypto..z2ftls..types: symbol not found
141Error relocating /k8s-for-beginners: crypto..z2fx509..types: symbol not found
142Error relocating /k8s-for-beginners: crypto..z2fx509..z2fpkix..types: symbol not found
143Error relocating /k8s-for-beginners: encoding..z2fasn1..types: symbol not found
144Error relocating /k8s-for-beginners: encoding..z2fbase64..types: symbol not found
145Error relocating /k8s-for-beginners: encoding..z2fbinary..types: symbol not found
146Error relocating /k8s-for-beginners: encoding..z2fhex..types: symbol not found
147Error relocating /k8s-for-beginners: encoding..z2fpem..types: symbol not found
148Error relocating /k8s-for-beginners: errors..types: symbol not found
149Error relocating /k8s-for-beginners: fmt..types: symbol not found
150Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fchacha20..types: symbol not found
151Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fchacha20poly1305..types: symbol not found
152Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fcryptobyte..types: symbol not found
153Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fcurve25519..types: symbol not found
154Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fdns..z2fdnsmessage..types: symbol not found
155Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fhttp..z2fhttpguts..types: symbol not found
156Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fhttp..z2fhttpproxy..types: symbol not found
157Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fhttp2..z2fhpack..types: symbol not found
158Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fidna..types: symbol not found
159Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2fsecure..z2fbidirule..types: symbol not found
160Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2ftransform..types: symbol not found
161Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2funicode..z2fbidi..types: symbol not found
162Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2funicode..z2fnorm..types: symbol not found
163Error relocating /k8s-for-beginners: hash..z2fcrc32..types: symbol not found
164Error relocating /k8s-for-beginners: internal..z2fcpu..types: symbol not found
165Error relocating /k8s-for-beginners: internal..z2foserror..types: symbol not found
166Error relocating /k8s-for-beginners: internal..z2fpoll..types: symbol not found
167Error relocating /k8s-for-beginners: internal..z2freflectlite..types: symbol not found
168Error relocating /k8s-for-beginners: internal..z2ftestlog..types: symbol not found
169Error relocating /k8s-for-beginners: io..types: symbol not found
170Error relocating /k8s-for-beginners: io..z2fioutil..types: symbol not found
171Error relocating /k8s-for-beginners: log..types: symbol not found
172Error relocating /k8s-for-beginners: math..z2fbig..types: symbol not found
173Error relocating /k8s-for-beginners: math..z2frand..types: symbol not found
174Error relocating /k8s-for-beginners: mime..types: symbol not found
175Error relocating /k8s-for-beginners: mime..z2fmultipart..types: symbol not found
176Error relocating /k8s-for-beginners: mime..z2fquotedprintable..types: symbol not found
177Error relocating /k8s-for-beginners: net..types: symbol not found
178Error relocating /k8s-for-beginners: net..z2fhttp..types: symbol not found
179Error relocating /k8s-for-beginners: net..z2fhttp..z2finternal..types: symbol not found
180Error relocating /k8s-for-beginners: net..z2ftextproto..types: symbol not found
181Error relocating /k8s-for-beginners: os..types: symbol not found
182Error relocating /k8s-for-beginners: path..types: symbol not found
183Error relocating /k8s-for-beginners: path..z2ffilepath..types: symbol not found
184Error relocating /k8s-for-beginners: reflect..types: symbol not found
185Error relocating /k8s-for-beginners: runtime..types: symbol not found
186Error relocating /k8s-for-beginners: runtime..z2finternal..z2fsys..types: symbol not found
187Error relocating /k8s-for-beginners: sort..types: symbol not found
188Error relocating /k8s-for-beginners: strconv..types: symbol not found
189Error relocating /k8s-for-beginners: sync..types: symbol not found
190Error relocating /k8s-for-beginners: syscall..types: symbol not found
191Error relocating /k8s-for-beginners: time..types: symbol not found
192Error relocating /k8s-for-beginners: unicode..types: symbol not found
193Error relocating /k8s-for-beginners: container..z2flist..types: symbol not found
194Error relocating /k8s-for-beginners: crypto..z2faes..types: symbol not found
195Error relocating /k8s-for-beginners: crypto..z2fdes..types: symbol not found
196Error relocating /k8s-for-beginners: crypto..z2fed25519..types: symbol not found
197Error relocating /k8s-for-beginners: crypto..z2fed25519..z2finternal..z2fedwards25519..types: symbol not found
198Error relocating /k8s-for-beginners: crypto..z2fhmac..types: symbol not found
199Error relocating /k8s-for-beginners: crypto..z2finternal..z2fsubtle..types: symbol not found
200Error relocating /k8s-for-beginners: crypto..z2frc4..types: symbol not found
201Error relocating /k8s-for-beginners: crypto..z2fsubtle..types: symbol not found
202Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fcryptobyte..z2fasn1..types: symbol not found
203Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fhkdf..types: symbol not found
204Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2finternal..z2fsubtle..types: symbol not found
205Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fpoly1305..types: symbol not found
206Error relocating /k8s-for-beginners: hash..types: symbol not found
207Error relocating /k8s-for-beginners: internal..z2fbytealg..types: symbol not found
208Error relocating /k8s-for-beginners: internal..z2ffmtsort..types: symbol not found
209Error relocating /k8s-for-beginners: internal..z2fnettrace..types: symbol not found
210Error relocating /k8s-for-beginners: internal..z2frace..types: symbol not found
211Error relocating /k8s-for-beginners: internal..z2fsingleflight..types: symbol not found
212Error relocating /k8s-for-beginners: internal..z2fsyscall..z2fexecenv..types: symbol not found
213Error relocating /k8s-for-beginners: internal..z2fsyscall..z2funix..types: symbol not found
214Error relocating /k8s-for-beginners: math..types: symbol not found
215Error relocating /k8s-for-beginners: math..z2fbits..types: symbol not found
216Error relocating /k8s-for-beginners: net..z2fhttp..z2fhttptrace..types: symbol not found
217Error relocating /k8s-for-beginners: net..z2furl..types: symbol not found
218Error relocating /k8s-for-beginners: runtime..z2finternal..z2fatomic..types: symbol not found
219Error relocating /k8s-for-beginners: runtime..z2finternal..z2fmath..types: symbol not found
220Error relocating /k8s-for-beginners: strings..types: symbol not found
221Error relocating /k8s-for-beginners: sync..z2fatomic..types: symbol not found
222Error relocating /k8s-for-beginners: unicode..z2futf16..types: symbol not found
223Error relocating /k8s-for-beginners: unicode..z2futf8..types: symbol not found
224Error relocating /k8s-for-beginners: runtime.strequal..f: symbol not found
225Error relocating /k8s-for-beginners: runtime.memequal64..f: symbol not found
226Error relocating /k8s-for-beginners: type...1reflect.rtype: symbol not found
227Error relocating /k8s-for-beginners: reflect.rtype.Align: symbol not found
228Error relocating /k8s-for-beginners: reflect.rtype.Align: symbol not found
229Error relocating /k8s-for-beginners: reflect.rtype.AssignableTo: symbol not found
230Error relocating /k8s-for-beginners: reflect.rtype.AssignableTo: symbol not found
231Error relocating /k8s-for-beginners: reflect.rtype.Bits: symbol not found
232Error relocating /k8s-for-beginners: reflect.rtype.Bits: symbol not found
233Error relocating /k8s-for-beginners: reflect.rtype.ChanDir: symbol not found
234Error relocating /k8s-for-beginners: reflect.rtype.ChanDir: symbol not found
235Error relocating /k8s-for-beginners: reflect.rtype.Comparable: symbol not found
236Error relocating /k8s-for-beginners: reflect.rtype.Comparable: symbol not found
237Error relocating /k8s-for-beginners: reflect.rtype.ConvertibleTo: symbol not found
238Error relocating /k8s-for-beginners: reflect.rtype.ConvertibleTo: symbol not found
239Error relocating /k8s-for-beginners: reflect.rtype.Elem: symbol not found
240Error relocating /k8s-for-beginners: reflect.rtype.Elem: symbol not found
241Error relocating /k8s-for-beginners: reflect.rtype.Field: symbol not found
242Error relocating /k8s-for-beginners: reflect.rtype.Field: symbol not found
243Error relocating /k8s-for-beginners: reflect.rtype.FieldAlign: symbol not found
244Error relocating /k8s-for-beginners: reflect.rtype.FieldAlign: symbol not found
245Error relocating /k8s-for-beginners: reflect.rtype.FieldByIndex: symbol not found
246Error relocating /k8s-for-beginners: reflect.rtype.FieldByIndex: symbol not found
247Error relocating /k8s-for-beginners: reflect.rtype.FieldByName: symbol not found
248Error relocating /k8s-for-beginners: reflect.rtype.FieldByName: symbol not found
249Error relocating /k8s-for-beginners: reflect.rtype.FieldByNameFunc: symbol not found
250Error relocating /k8s-for-beginners: reflect.rtype.FieldByNameFunc: symbol not found
251Error relocating /k8s-for-beginners: reflect.rtype.Implements: symbol not found
252Error relocating /k8s-for-beginners: reflect.rtype.Implements: symbol not found
253Error relocating /k8s-for-beginners: reflect.rtype.In: symbol not found
254Error relocating /k8s-for-beginners: reflect.rtype.In: symbol not found
255Error relocating /k8s-for-beginners: reflect.rtype.IsVariadic: symbol not found
256Error relocating /k8s-for-beginners: reflect.rtype.IsVariadic: symbol not found
257Error relocating /k8s-for-beginners: reflect.rtype.Key: symbol not found
258Error relocating /k8s-for-beginners: reflect.rtype.Key: symbol not found
259Error relocating /k8s-for-beginners: reflect.rtype.Kind: symbol not found
260Error relocating /k8s-for-beginners: reflect.rtype.Kind: symbol not found
261Error relocating /k8s-for-beginners: reflect.rtype.Len: symbol not found
262Error relocating /k8s-for-beginners: reflect.rtype.Len: symbol not found
263Error relocating /k8s-for-beginners: reflect.rtype.Method: symbol not found
264Error relocating /k8s-for-beginners: reflect.rtype.Method: symbol not found
265Error relocating /k8s-for-beginners: reflect.rtype.MethodByName: symbol not found
266Error relocating /k8s-for-beginners: reflect.rtype.MethodByName: symbol not found
267Error relocating /k8s-for-beginners: reflect.rtype.Name: symbol not found
268Error relocating /k8s-for-beginners: reflect.rtype.Name: symbol not found
269Error relocating /k8s-for-beginners: reflect.rtype.NumField: symbol not found
270Error relocating /k8s-for-beginners: reflect.rtype.NumField: symbol not found
271Error relocating /k8s-for-beginners: reflect.rtype.NumIn: symbol not found
272Error relocating /k8s-for-beginners: reflect.rtype.NumIn: symbol not found
273Error relocating /k8s-for-beginners: reflect.rtype.NumMethod: symbol not found
274Error relocating /k8s-for-beginners: reflect.rtype.NumMethod: symbol not found
275Error relocating /k8s-for-beginners: reflect.rtype.NumOut: symbol not found
276Error relocating /k8s-for-beginners: reflect.rtype.NumOut: symbol not found
277Error relocating /k8s-for-beginners: reflect.rtype.Out: symbol not found
278Error relocating /k8s-for-beginners: reflect.rtype.Out: symbol not found
279Error relocating /k8s-for-beginners: reflect.rtype.PkgPath: symbol not found
280Error relocating /k8s-for-beginners: reflect.rtype.PkgPath: symbol not found
281Error relocating /k8s-for-beginners: reflect.rtype.Size: symbol not found
282Error relocating /k8s-for-beginners: reflect.rtype.Size: symbol not found
283Error relocating /k8s-for-beginners: reflect.rtype.String: symbol not found
284Error relocating /k8s-for-beginners: reflect.rtype.String: symbol not found
285Error relocating /k8s-for-beginners: reflect.rtype.common: symbol not found
286Error relocating /k8s-for-beginners: reflect.rtype.common: symbol not found
287Error relocating /k8s-for-beginners: reflect.rtype.rawString: symbol not found
288Error relocating /k8s-for-beginners: reflect.rtype.rawString: symbol not found
289Error relocating /k8s-for-beginners: reflect.rtype.uncommon..stub: symbol not found
290Error relocating /k8s-for-beginners: reflect.rtype.uncommon..stub: symbol not found
291Error relocating /k8s-for-beginners: reflect..reflect.rtype..d: symbol not found
292Error relocating /k8s-for-beginners: type...1net.IPAddr: symbol not found
293Error relocating /k8s-for-beginners: net.IPAddr.Network: symbol not found
294Error relocating /k8s-for-beginners: net.IPAddr.Network: symbol not found
295Error relocating /k8s-for-beginners: net.IPAddr.String: symbol not found
296Error relocating /k8s-for-beginners: net.IPAddr.String: symbol not found
297Error relocating /k8s-for-beginners: net.IPAddr.family: symbol not found
298Error relocating /k8s-for-beginners: net.IPAddr.family: symbol not found
299Error relocating /k8s-for-beginners: net.IPAddr.isWildcard: symbol not found
300Error relocating /k8s-for-beginners: net.IPAddr.isWildcard: symbol not found
301Error relocating /k8s-for-beginners: net.IPAddr.sockaddr: symbol not found
302Error relocating /k8s-for-beginners: net.IPAddr.sockaddr: symbol not found
303Error relocating /k8s-for-beginners: net.IPAddr.toLocal: symbol not found
304Error relocating /k8s-for-beginners: net.IPAddr.toLocal: symbol not found
305Error relocating /k8s-for-beginners: net.IPAddr..d: symbol not found
306Error relocating /k8s-for-beginners: runtime.main: symbol not found
307Error relocating /k8s-for-beginners: runtime_iscgo: symbol not found
308Error relocating /k8s-for-beginners: runtime_isstarted: symbol not found
309Error relocating /k8s-for-beginners: runtime_isarchive: symbol not found
310Error relocating /k8s-for-beginners: __gcc_personality_v0: symbol not found
311Error relocating /k8s-for-beginners: io.Writer..d: symbol not found
312Error relocating /k8s-for-beginners: runtime.writeBarrier: symbol not found
313
314FROM golang:1.17 as builder
315
316# first (build) stage
317
318WORKDIR /app
319COPY . .
320RUN go mod download
321RUN CGO_ENABLED=0 go build -o k8s-for-beginners
322
323# final (target) stage
324
325FROM alpine:3.10
326COPY --from=builder /app/k8s-for-beginners /
327CMD ["/k8s-for-beginners"]
328go mod init k8sapp     # creates a `go.mod`
329

1CONTAINER ID   IMAGE                      COMMAND                CREATED          STATUS                      PORTS     NAMES
2ae327a2bdba3   k8s-for-beginners:v0.0.1   "/k8s-for-beginners"   11 seconds ago   Exited (1) 10 seconds ago             focused_booth
3standard_init_linux.go:228: exec user process caused: no such file or directory
4FROM alpine:3.10
5COPY k8s-for-beginners /
6CMD ["/k8s-for-beginners"]
7package main
8
9import (
10    "fmt"
11    "log"
12    "net/http"
13)
14
15func main() {
16    http.HandleFunc("/", handler)
17    log.Fatal(http.ListenAndServe("0.0.0.0:8080", nil))
18}
19
20func handler(w http.ResponseWriter, r *http.Request) {
21    log.Printf("Ping from %s", r.RemoteAddr)
22    fmt.Fprintln(w, "Hello Kubernetes Beginners!")
23}
24CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o k8s-for-beginners
25sudo docker build -t k8s-for-beginners:v0.0.1 .
26sudo docker run -p 8080:8080 -d k8s-for-beginners:v0.0.1
27        /lib64/ld-linux-x86-64.so.2 (0x7f9ab5778000)
28        libc.so.6 => /lib64/ld-linux-x86-64.so.2 (0x7f9ab5778000)
29Error loading shared library libgo.so.16: No such file or directory (needed by /k8s-for-beginners)
30Error loading shared library libgcc_s.so.1: No such file or directory (needed by /k8s-for-beginners)
31Error loading shared library ld-linux-x86-64.so.2: No such file or directory (needed by /k8s-for-beginners)
32Error relocating /k8s-for-beginners: crypto..z2frsa..import: symbol not found
33Error relocating /k8s-for-beginners: crypto..z2fx509..import: symbol not found
34Error relocating /k8s-for-beginners: log..import: symbol not found
35Error relocating /k8s-for-beginners: crypto..z2fmd5..import: symbol not found
36Error relocating /k8s-for-beginners: crypto..import: symbol not found
37Error relocating /k8s-for-beginners: bytes..import: symbol not found
38Error relocating /k8s-for-beginners: fmt.Fprintln: symbol not found
39Error relocating /k8s-for-beginners: crypto..z2felliptic..import: symbol not found
40Error relocating /k8s-for-beginners: crypto..z2fx509..z2fpkix..import: symbol not found
41Error relocating /k8s-for-beginners: crypto..z2frand..import: symbol not found
42Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fchacha20poly1305..import: symbol not found
43Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fcurve25519..import: symbol not found
44Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fidna..import: symbol not found
45Error relocating /k8s-for-beginners: internal..z2foserror..import: symbol not found
46Error relocating /k8s-for-beginners: crypto..z2fecdsa..import: symbol not found
47Error relocating /k8s-for-beginners: net..z2fhttp.HandleFunc: symbol not found
48Error relocating /k8s-for-beginners: io..import: symbol not found
49Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fhttp2..z2fhpack..import: symbol not found
50Error relocating /k8s-for-beginners: crypto..z2fcipher..import: symbol not found
51Error relocating /k8s-for-beginners: log.Fatal: symbol not found
52Error relocating /k8s-for-beginners: math..z2fbig..import: symbol not found
53Error relocating /k8s-for-beginners: runtime..import: symbol not found
54Error relocating /k8s-for-beginners: net..z2fhttp..import: symbol not found
55Error relocating /k8s-for-beginners: hash..z2fcrc32..import: symbol not found
56Error relocating /k8s-for-beginners: net..z2fhttp.ListenAndServe: symbol not found
57Error relocating /k8s-for-beginners: context..import: symbol not found
58Error relocating /k8s-for-beginners: fmt..import: symbol not found
59Error relocating /k8s-for-beginners: crypto..z2ftls..import: symbol not found
60Error relocating /k8s-for-beginners: errors..import: symbol not found
61Error relocating /k8s-for-beginners: internal..z2ftestlog..import: symbol not found
62Error relocating /k8s-for-beginners: runtime.setIsCgo: symbol not found
63Error relocating /k8s-for-beginners: runtime_m: symbol not found
64Error relocating /k8s-for-beginners: encoding..z2fhex..import: symbol not found
65Error relocating /k8s-for-beginners: mime..import: symbol not found
66Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2funicode..z2fbidi..import: symbol not found
67Error relocating /k8s-for-beginners: internal..z2freflectlite..import: symbol not found
68Error relocating /k8s-for-beginners: compress..z2fgzip..import: symbol not found
69Error relocating /k8s-for-beginners: sync..import: symbol not found
70Error relocating /k8s-for-beginners: compress..z2fflate..import: symbol not found
71Error relocating /k8s-for-beginners: encoding..z2fbinary..import: symbol not found
72Error relocating /k8s-for-beginners: math..z2frand..import: symbol not found
73Error relocating /k8s-for-beginners: runtime_cpuinit: symbol not found
74Error relocating /k8s-for-beginners: internal..z2fpoll..import: symbol not found
75Error relocating /k8s-for-beginners: mime..z2fmultipart..import: symbol not found
76Error relocating /k8s-for-beginners: runtime.check: symbol not found
77Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fcryptobyte..import: symbol not found
78Error relocating /k8s-for-beginners: crypto..z2fsha512..import: symbol not found
79Error relocating /k8s-for-beginners: runtime.registerTypeDescriptors: symbol not found
80Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fchacha20..import: symbol not found
81Error relocating /k8s-for-beginners: runtime.setmodinfo: symbol not found
82Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2ftransform..import: symbol not found
83Error relocating /k8s-for-beginners: time..import: symbol not found
84Error relocating /k8s-for-beginners: encoding..z2fbase64..import: symbol not found
85Error relocating /k8s-for-beginners: crypto..z2fsha256..import: symbol not found
86Error relocating /k8s-for-beginners: __go_go: symbol not found
87Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fhttp..z2fhttpguts..import: symbol not found
88Error relocating /k8s-for-beginners: path..z2ffilepath..import: symbol not found
89Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2fsecure..z2fbidirule..import: symbol not found
90Error relocating /k8s-for-beginners: os..import: symbol not found
91Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fhttp..z2fhttpproxy..import: symbol not found
92Error relocating /k8s-for-beginners: net..z2ftextproto..import: symbol not found
93Error relocating /k8s-for-beginners: encoding..z2fasn1..import: symbol not found
94Error relocating /k8s-for-beginners: runtime.requireitab: symbol not found
95Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fdns..z2fdnsmessage..import: symbol not found
96Error relocating /k8s-for-beginners: path..import: symbol not found
97Error relocating /k8s-for-beginners: io..z2fioutil..import: symbol not found
98Error relocating /k8s-for-beginners: sort..import: symbol not found
99Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2funicode..z2fnorm..import: symbol not found
100Error relocating /k8s-for-beginners: internal..z2fcpu..import: symbol not found
101Error relocating /k8s-for-beginners: runtime.ginit: symbol not found
102Error relocating /k8s-for-beginners: runtime.osinit: symbol not found
103Error relocating /k8s-for-beginners: runtime.schedinit: symbol not found
104Error relocating /k8s-for-beginners: bufio..import: symbol not found
105Error relocating /k8s-for-beginners: crypto..z2finternal..z2frandutil..import: symbol not found
106Error relocating /k8s-for-beginners: runtime_mstart: symbol not found
107Error relocating /k8s-for-beginners: net..import: symbol not found
108Error relocating /k8s-for-beginners: strconv..import: symbol not found
109Error relocating /k8s-for-beginners: runtime.args: symbol not found
110Error relocating /k8s-for-beginners: runtime..z2finternal..z2fsys..import: symbol not found
111Error relocating /k8s-for-beginners: runtime.newobject: symbol not found
112Error relocating /k8s-for-beginners: syscall..import: symbol not found
113Error relocating /k8s-for-beginners: unicode..import: symbol not found
114Error relocating /k8s-for-beginners: net..z2fhttp..z2finternal..import: symbol not found
115Error relocating /k8s-for-beginners: encoding..z2fpem..import: symbol not found
116Error relocating /k8s-for-beginners: _Unwind_Resume: symbol not found
117Error relocating /k8s-for-beginners: reflect..import: symbol not found
118Error relocating /k8s-for-beginners: mime..z2fquotedprintable..import: symbol not found
119Error relocating /k8s-for-beginners: log.Printf: symbol not found
120Error relocating /k8s-for-beginners: runtime.typedmemmove: symbol not found
121Error relocating /k8s-for-beginners: crypto..z2fdsa..import: symbol not found
122Error relocating /k8s-for-beginners: crypto..z2fsha1..import: symbol not found
123Error relocating /k8s-for-beginners: bufio..types: symbol not found
124Error relocating /k8s-for-beginners: bytes..types: symbol not found
125Error relocating /k8s-for-beginners: compress..z2fflate..types: symbol not found
126Error relocating /k8s-for-beginners: compress..z2fgzip..types: symbol not found
127Error relocating /k8s-for-beginners: context..types: symbol not found
128Error relocating /k8s-for-beginners: crypto..types: symbol not found
129Error relocating /k8s-for-beginners: crypto..z2fcipher..types: symbol not found
130Error relocating /k8s-for-beginners: crypto..z2fdsa..types: symbol not found
131Error relocating /k8s-for-beginners: crypto..z2fecdsa..types: symbol not found
132Error relocating /k8s-for-beginners: crypto..z2felliptic..types: symbol not found
133Error relocating /k8s-for-beginners: crypto..z2finternal..z2frandutil..types: symbol not found
134Error relocating /k8s-for-beginners: crypto..z2fmd5..types: symbol not found
135Error relocating /k8s-for-beginners: crypto..z2frand..types: symbol not found
136Error relocating /k8s-for-beginners: crypto..z2frsa..types: symbol not found
137Error relocating /k8s-for-beginners: crypto..z2fsha1..types: symbol not found
138Error relocating /k8s-for-beginners: crypto..z2fsha256..types: symbol not found
139Error relocating /k8s-for-beginners: crypto..z2fsha512..types: symbol not found
140Error relocating /k8s-for-beginners: crypto..z2ftls..types: symbol not found
141Error relocating /k8s-for-beginners: crypto..z2fx509..types: symbol not found
142Error relocating /k8s-for-beginners: crypto..z2fx509..z2fpkix..types: symbol not found
143Error relocating /k8s-for-beginners: encoding..z2fasn1..types: symbol not found
144Error relocating /k8s-for-beginners: encoding..z2fbase64..types: symbol not found
145Error relocating /k8s-for-beginners: encoding..z2fbinary..types: symbol not found
146Error relocating /k8s-for-beginners: encoding..z2fhex..types: symbol not found
147Error relocating /k8s-for-beginners: encoding..z2fpem..types: symbol not found
148Error relocating /k8s-for-beginners: errors..types: symbol not found
149Error relocating /k8s-for-beginners: fmt..types: symbol not found
150Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fchacha20..types: symbol not found
151Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fchacha20poly1305..types: symbol not found
152Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fcryptobyte..types: symbol not found
153Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fcrypto..z2fcurve25519..types: symbol not found
154Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fdns..z2fdnsmessage..types: symbol not found
155Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fhttp..z2fhttpguts..types: symbol not found
156Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fhttp..z2fhttpproxy..types: symbol not found
157Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fhttp2..z2fhpack..types: symbol not found
158Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2fnet..z2fidna..types: symbol not found
159Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2fsecure..z2fbidirule..types: symbol not found
160Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2ftransform..types: symbol not found
161Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2funicode..z2fbidi..types: symbol not found
162Error relocating /k8s-for-beginners: golang.x2eorg..z2fx..z2ftext..z2funicode..z2fnorm..types: symbol not found
163Error relocating /k8s-for-beginners: hash..z2fcrc32..types: symbol not found
164Error relocating /k8s-for-beginners: internal..z2fcpu..types: symbol not found
165Error relocating /k8s-for-beginners: internal..z2foserror..types: symbol not found
166Error relocating /k8s-for-beginners: internal..z2fpoll..types: symbol not found
167Error relocating /k8s-for-beginners: internal..z2freflectlite..types: symbol not found
168Error relocating /k8s-for-beginners: internal..z2ftestlog..types: symbol not found
169Error relocating /k8s-for-beginners: io..types: symbol not found
170Error relocating /k8s-for-beginners: io..z2fioutil..types: symbol not found
171Error relocating /k8s-for-beginners: log..types: symbol not found
172Error relocating /k8s-for-beginners: math..z2fbig..types: symbol not found
173Error relocating /k8s-for-beginners: math..z2frand..types: symbol not found
174Error relocating /k8s-for-beginners: mime..types: symbol not found
175Error relocating /k8s-for-beginners: mime..z2fmultipart..types: symbol not found
176Error relocating /k8s-for-beginners: mime..z2fquotedprintable..types: symbol not found
177Error relocating /k8s-for-beginners: net..types: symbol not found
178Error relocating /k8s-for-beginners: net..z2fhttp..types: symbol not found
179Error relocating /k8s-for-beginners: net..z2fhttp..z2finternal..types: symbol not found
180Error relocating /k8s-for-beginners: net..z2ftextproto..types: symbol not found
181Error relocating /k8s-for-beginners: os..types: symbol not found
182Error relocating /k8s-for-beginners: path..types: symbol not found
183Error relocating /k8s-for-beginners: path..z2ffilepath..types: symbol not found
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313
314FROM golang:1.17 as builder
315
316# first (build) stage
317
318WORKDIR /app
319COPY . .
320RUN go mod download
321RUN CGO_ENABLED=0 go build -o k8s-for-beginners
322
323# final (target) stage
324
325FROM alpine:3.10
326COPY --from=builder /app/k8s-for-beginners /
327CMD ["/k8s-for-beginners"]
328go mod init k8sapp     # creates a `go.mod`
329module k8sapp
330
331go 1.17
332

1multi infix:<+> ( Measure:D $left, Real:D $right ) is export {
2    my $result   = $left.clone;
3    my $argument = $right;
4    return $result.add-const( $argument );
5}
6multi infix:<+> ( Real:D $left, Measure:D $right ) is export {
7    my $result   = $right.clone;
8    my $argument = $left;
9    return $result.add-const( $argument );
10}
11multi infix:<+> ( Measure:D $left, Measure:D $right ) is export {
12    my ( $result, $argument ) = infix-prep( $left, $right );
13    return $result.add( $argument );
14}
15subset RealOrMeasure where Real | Measure;
16multi infix:<+> ( RealOrMeasure:D $left, RealOrMeasure:D $right )  {
17    given $left, $right {
18       when Real,    Real    { nextsame }
19       when Real,    Measure { $right.clone.add-const($left)  }
20       when Measure, Real    {  $left.clone.add-const($right) }
21       when Measure, Measure { my ($result, $argument) = infix-prep $left, $right;
22                               $result.add($argument)}}
23
24}
25

1import numpy as np
2def randomMatrix(m, n, p, q):
3    # creates an m x n matrix with lower bound p and upper bound q, randomly.
4    count = np.random.uniform(p, q, size=(m, n))
5    return count
6
7Qs = []
8my_rank = 5
9for i in range(my_rank):
10  L = randomMatrix(20, 1, 0, np.sqrt(20))
11  # L is tall
12  R = randomMatrix(1, 100, 0, np.sqrt(20)) 
13  # R is long
14  Q = np.outer(L, R)
15  Qs.append(Q)
16
17Q = np.vstack(Qs)
18#shuffle (preserves rank 5 [confirmed])
19np.random.shuffle(Q)
20
21from scipy.stats import ortho_group
22from scipy.special import softmax
23import numpy as np
24from matplotlib import pyplot as plt
25N    = 100
26R    = 5
27low  = 0
28high = 20
29sm_temperature = 100
30
31p       = np.random.uniform(low, high, (1, R, N))
32weights = np.random.uniform(0, 1, (N-R, R, 1))
33weights = softmax(weights*sm_temperature, axis = 1)
34p_lc    = (weights*p).sum(1)
35
36rand_mat = np.concatenate([p[0], p_lc])
37
38plt.hist(rand_mat.flatten())
39