SimianArmy | cloud operating in top form | Architecture library

 by   Netflix Java Version: v2.5.3 License: Apache-2.0

kandi X-RAY | SimianArmy Summary

SimianArmy is a Java library typically used in Architecture applications. SimianArmy has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has medium support. You can download it from GitHub.
The Simian Army is a suite of tools for keeping your cloud operating in top form. Chaos Monkey, the first member, is a resiliency tool that helps ensure that your applications can tolerate random instance failures.
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                      kandi-support Support

                        summary
                        SimianArmy has a medium active ecosystem.
                        summary
                        It has 7927 star(s) with 1158 fork(s). There are 882 watchers for this library.
                        summary
                        It had no major release in the last 12 months.
                        summary
                        There are 39 open issues and 67 have been closed. On average issues are closed in 132 days. There are 6 open pull requests and 0 closed requests.
                        summary
                        It has a neutral sentiment in the developer community.
                        summary
                        The latest version of SimianArmy is v2.5.3
                        SimianArmy Support
                          Best in #Architecture
                            Average in #Architecture
                            SimianArmy Support
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                                Average in #Architecture

                                  kandi-Quality Quality

                                    summary
                                    SimianArmy has 0 bugs and 0 code smells.
                                    SimianArmy Quality
                                      Best in #Architecture
                                        Average in #Architecture
                                        SimianArmy Quality
                                          Best in #Architecture
                                            Average in #Architecture

                                              kandi-Security Security

                                                summary
                                                SimianArmy has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
                                                summary
                                                SimianArmy code analysis shows 0 unresolved vulnerabilities.
                                                summary
                                                There are 0 security hotspots that need review.
                                                SimianArmy Security
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                                                    SimianArmy Security
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                                                          kandi-License License

                                                            summary
                                                            SimianArmy is licensed under the Apache-2.0 License. This license is Permissive.
                                                            summary
                                                            Permissive licenses have the least restrictions, and you can use them in most projects.
                                                            SimianArmy License
                                                              Best in #Architecture
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                                                                SimianArmy License
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                                                                    Average in #Architecture

                                                                      kandi-Reuse Reuse

                                                                        summary
                                                                        SimianArmy releases are available to install and integrate.
                                                                        summary
                                                                        Build file is available. You can build the component from source.
                                                                        summary
                                                                        SimianArmy saves you 9467 person hours of effort in developing the same functionality from scratch.
                                                                        summary
                                                                        It has 19329 lines of code, 1651 functions and 216 files.
                                                                        summary
                                                                        It has medium code complexity. Code complexity directly impacts maintainability of the code.
                                                                        SimianArmy Reuse
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                                                                            SimianArmy Reuse
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                                                                                  Top functions reviewed by kandi - BETA
                                                                                  kandi has reviewed SimianArmy and discovered the below as its top functions. This is intended to give you an instant insight into SimianArmy implemented functionality, and help decide if they suit your requirements.
                                                                                  • Builds a map of ELB - EBS associated with an EDDA .
                                                                                    • Update the last attachment info for each resource
                                                                                      • Cleans up resources for cleaning .
                                                                                        • refresh the owner by an image
                                                                                          • Get a list of all clusters in the specified region .
                                                                                            • Tries to find all the volumes that are not captured by Janitor .
                                                                                              • Construct a context for JanitorEmailEmailNotifier .
                                                                                                • Builds the context for the ConformityNotifier .
                                                                                                  • Sends a notification to all registered resources .
                                                                                                    • Load holidays from the year .
                                                                                                      Get all kandi verified functions for this library.
                                                                                                      Get all kandi verified functions for this library.

                                                                                                      SimianArmy Key Features

                                                                                                      Tools for keeping your cloud operating in top form. Chaos Monkey is a resiliency tool that helps applications tolerate random instance failures.

                                                                                                      SimianArmy Examples and Code Snippets

                                                                                                      No Code Snippets are available at this moment for SimianArmy.
                                                                                                      Community Discussions

                                                                                                      Trending Discussions on SimianArmy

                                                                                                      index out of range while attempting to write to file
                                                                                                      chevron right

                                                                                                      QUESTION

                                                                                                      index out of range while attempting to write to file
                                                                                                      Asked 2018-Feb-14 at 08:30

                                                                                                      I believe the issue is that the buffer isn't getting flushed but am not certain, p

                                                                                                      Error

                                                                                                      bash-4.4$ ./golang-updateprops -f chaosmonkey.config
                                                                                                      panic: runtime error: index out of range
                                                                                                      
                                                                                                      goroutine 1 [running]:
                                                                                                      main.ingest(0x7ffeefbff700, 0x12, 0x0, 0x0)
                                                                                                          #/golang-updateprops/update_properties.go:98 +0xa9d
                                                                                                      main.main()
                                                                                                          #/golang-updateprops/update_properties.go:121 +0xb6
                                                                                                      

                                                                                                      Code

                                                                                                      package main
                                                                                                      
                                                                                                      import (
                                                                                                        "strings"
                                                                                                        "bufio"
                                                                                                        "fmt"
                                                                                                        "regexp"
                                                                                                        "flag"
                                                                                                        "os"
                                                                                                        "io"
                                                                                                        "bytes"
                                                                                                      )
                                                                                                      
                                                                                                      var (
                                                                                                        filename  string
                                                                                                      )
                                                                                                      
                                                                                                      func isCommentOrBlank(line string) bool {
                                                                                                        return strings.HasPrefix(line, "#") || "" == strings.TrimSpace(line)
                                                                                                      }
                                                                                                      
                                                                                                      func fileExists(filename string) bool {
                                                                                                        if _, err := os.Stat(filename); err == nil {
                                                                                                          return true
                                                                                                        }
                                                                                                        return false
                                                                                                      }
                                                                                                      
                                                                                                      func limitLength(s string, length int) string {
                                                                                                        if len(s) < length {
                                                                                                          return s
                                                                                                        }
                                                                                                        return s[:length]
                                                                                                      }
                                                                                                      
                                                                                                      func padWithSpace(str, pad string, length int) string {
                                                                                                          for {
                                                                                                              str += pad
                                                                                                              if len(str) > length {
                                                                                                                  return str[0:length]
                                                                                                              }
                                                                                                          }
                                                                                                      }
                                                                                                      
                                                                                                      func ingest(filename string) (err error) {
                                                                                                        file, err := os.OpenFile(filename, os.O_RDWR, 0666)
                                                                                                        defer file.Close()
                                                                                                      
                                                                                                        if err != nil {
                                                                                                          return err
                                                                                                        }
                                                                                                      
                                                                                                        reader := bufio.NewReader(file) // Start reading from the file with a reader.
                                                                                                      
                                                                                                        for {
                                                                                                          var buffer bytes.Buffer
                                                                                                          var l []byte
                                                                                                          var isPrefix bool
                                                                                                      
                                                                                                          for {
                                                                                                            l, isPrefix, err = reader.ReadLine()
                                                                                                            buffer.Write(l)
                                                                                                      
                                                                                                            if !isPrefix { // If we've reached the end of the line or we're at the EOF, break
                                                                                                              break
                                                                                                            }
                                                                                                          }
                                                                                                      
                                                                                                          if err == io.EOF || err != nil {
                                                                                                            break
                                                                                                          }
                                                                                                      
                                                                                                          line    := buffer.String()
                                                                                                          pattern := regexp.MustCompile(`^#([^=]+)=(.+)$`)
                                                                                                          matches := pattern.FindAllStringSubmatch(line, -1) // matches is [][]string
                                                                                                      
                                                                                                          for _, string := range matches {
                                                                                                            n := strings.TrimSpace(string[1])
                                                                                                            v := strings.TrimSpace(string[2])
                                                                                                            e := strings.ToLower(strings.Replace(n, ".", "/", -1))
                                                                                                      
                                                                                                            // newline creation for if block
                                                                                                            nl := "{{if exists \"/" + e + "\" -}}\n"
                                                                                                            nl += padWithSpace(n, " ", 80) + " = {{getv \"" + e + "\" \"" + v + "\"}}\n"
                                                                                                            nl += "{{end -}}\n"
                                                                                                      
                                                                                                            buffer.WriteString(nl)
                                                                                                            file.Sync()
                                                                                                          }
                                                                                                      
                                                                                                          // dont proccess comments
                                                                                                          if (isCommentOrBlank(line)) {
                                                                                                            buffer.WriteString(line)
                                                                                                            file.Sync()
                                                                                                          } else {
                                                                                                            a := strings.Split(line, "=")
                                                                                                            n := strings.TrimSpace(a[1])
                                                                                                            v := strings.TrimSpace(a[2])
                                                                                                            e := strings.ToLower(strings.Replace(n, ".", "/", -1))
                                                                                                      
                                                                                                            nl := padWithSpace(n, " ", 80) + " = {{getv \"" + e + "\" \"" + v + "\"}}\n"
                                                                                                            buffer.WriteString(nl)
                                                                                                            file.Sync()
                                                                                                          }
                                                                                                        }
                                                                                                      
                                                                                                        if err != io.EOF {
                                                                                                          fmt.Printf(" > Failed!: %v\n", err)
                                                                                                        }
                                                                                                        return
                                                                                                      }
                                                                                                      
                                                                                                      func main() {
                                                                                                        flag.StringVar(&filename, "f", "filename", "The file location to be parsed")
                                                                                                        flag.Parse()
                                                                                                      
                                                                                                        if !fileExists(filename) {
                                                                                                          fmt.Println(" > File does not exist\n")
                                                                                                        }
                                                                                                      
                                                                                                        ingest(filename)
                                                                                                      }
                                                                                                      

                                                                                                      Config being parsed

                                                                                                      # The file contains the properties for Chaos Monkey.
                                                                                                      # see documentation at:
                                                                                                      # https://github.com/Netflix/SimianArmy/wiki/Configuration
                                                                                                      
                                                                                                      # let chaos run
                                                                                                      simianarmy.chaos.enabled = true
                                                                                                      
                                                                                                      # don't allow chaos to kill (ie dryrun mode)
                                                                                                      simianarmy.chaos.leashed = true
                                                                                                      
                                                                                                      # set to "false" for Opt-In behavior, "true" for Opt-Out behavior
                                                                                                      simianarmy.chaos.ASG.enabled = false
                                                                                                      
                                                                                                      # uncomment this line to use tunable aggression
                                                                                                      #simianarmy.client.chaos.class = com.netflix.simianarmy.tunable.TunablyAggressiveChaosMonkey
                                                                                                      
                                                                                                      # default probability for all ASGs
                                                                                                      simianarmy.chaos.ASG.probability = 1.0
                                                                                                      
                                                                                                      # increase or decrease the termination limit
                                                                                                      simianarmy.chaos.ASG.maxTerminationsPerDay = 1.0
                                                                                                      
                                                                                                      # Strategies
                                                                                                      simianarmy.chaos.shutdowninstance.enabled = true
                                                                                                      simianarmy.chaos.blockallnetworktraffic.enabled = false
                                                                                                      simianarmy.chaos.burncpu.enabled = false
                                                                                                      simianarmy.chaos.killprocesses.enabled = false
                                                                                                      simianarmy.chaos.nullroute.enabled = false
                                                                                                      simianarmy.chaos.failapi.enabled = false
                                                                                                      simianarmy.chaos.faildns.enabled = false
                                                                                                      simianarmy.chaos.faildynamodb.enabled = false
                                                                                                      simianarmy.chaos.fails3.enabled = false
                                                                                                      simianarmy.chaos.networkcorruption.enabled = false
                                                                                                      simianarmy.chaos.networklatency.enabled = false
                                                                                                      simianarmy.chaos.networkloss.enabled = false
                                                                                                      
                                                                                                      # Force-detaching EBS volumes may cause data loss
                                                                                                      simianarmy.chaos.detachvolumes.enabled = false
                                                                                                      
                                                                                                      # FillDisk fills the root disk.
                                                                                                      # NOTE: This may incur charges for an EBS root volume.  See burnmoney option.
                                                                                                      simianarmy.chaos.burnio.enabled = false
                                                                                                      # BurnIO causes disk activity on the root disk.
                                                                                                      # NOTE: This may incur charges for an EBS root volume. See burnmoney option.
                                                                                                      simianarmy.chaos.filldisk.enabled = false
                                                                                                      
                                                                                                      # Where we know the chaos strategy will incur charges, we won't run it unless burnmoney is true.
                                                                                                      simianarmy.chaos.burnmoney = false
                                                                                                      
                                                                                                      
                                                                                                      # enable a specific ASG
                                                                                                      # simianarmy.chaos.ASG..enabled = true
                                                                                                      # simianarmy.chaos.ASG..probability = 1.0
                                                                                                      
                                                                                                      # increase or decrease the termination limit for a specific ASG
                                                                                                      # simianarmy.chaos.ASG..maxTerminationsPerDay = 1.0
                                                                                                      
                                                                                                      # Enroll in mandatory terminations.  If a group has not had a
                                                                                                      # termination within the windowInDays range then it will terminate
                                                                                                      # one instance in the group with a 0.5 probability (at some point in
                                                                                                      # the next 2 days an instance should be terminated), then
                                                                                                      # do nothing again for windowInDays.  This forces "enabled" groups
                                                                                                      # that have a probability of 0.0 to have terminations periodically.
                                                                                                      simianarmy.chaos.mandatoryTermination.enabled = false
                                                                                                      simianarmy.chaos.mandatoryTermination.windowInDays = 32
                                                                                                      simianarmy.chaos.mandatoryTermination.defaultProbability = 0.5
                                                                                                      
                                                                                                      # Enable notification for Chaos termination for a specific instance group
                                                                                                      # simianarmy.chaos...notification.enabled = true
                                                                                                      
                                                                                                      # Set the destination email the termination notification sent to for a specific instance group
                                                                                                      # simianarmy.chaos...ownerEmail = foo@bar.com
                                                                                                      
                                                                                                      # Set the source email that sends the termination notification
                                                                                                      # simianarmy.chaos.notification.sourceEmail = foo@bar.com
                                                                                                      
                                                                                                      # Enable notification for Chaos termination for all instance groups
                                                                                                      #simianarmy.chaos.notification.global.enabled = true
                                                                                                      
                                                                                                      # Set the destination email the termination notification is sent to for all instance groups
                                                                                                      #simianarmy.chaos.notification.global.receiverEmail = foo@bar.com
                                                                                                      
                                                                                                      # Set a prefix applied to the subject of all termination notifications
                                                                                                      # Probably want to include a trailing space to separate from start of default text
                                                                                                      #simianarmy.chaos.notification.subject.prefix = SubjectPrefix
                                                                                                      
                                                                                                      # Set a suffix applied to the subject of all termination notifications
                                                                                                      # Probably want to include an escaped space " \ " to separate from end of default text
                                                                                                      #simianarmy.chaos.notification.subject.suffix =  \ SubjectSuffix
                                                                                                      
                                                                                                      # Set a prefix applied to the body of all termination notifications
                                                                                                      # Probably want to include a trailing space to separate from start of default text
                                                                                                      #simianarmy.chaos.notification.body.prefix = BodyPrefix
                                                                                                      
                                                                                                      # Set a suffix applied to the body of all termination notifications
                                                                                                      # Probably want to include an escaped space " \ " to separate from end of default text
                                                                                                      #simianarmy.chaos.notification.body.suffix =  \ BodySuffix
                                                                                                      
                                                                                                      # Enable the email subject to be the same as the body, to include terminated instance and group information
                                                                                                      #simianarmy.chaos.notification.subject.isBody = true
                                                                                                      #set the tag filter on the ASGs to terminate only instances from the ASG with the this tag key and value
                                                                                                      #simianarmy.chaos.ASGtag.key = chaos_monkey
                                                                                                      #simianarmy.chaos.ASGtag.value = true
                                                                                                      

                                                                                                      ANSWER

                                                                                                      Answered 2018-Feb-14 at 04:25

                                                                                                      The problem seems to be coming from these two lines inside your ingest function:

                                                                                                      n := strings.TrimSpace(a[1])
                                                                                                      v := strings.TrimSpace(a[2])
                                                                                                      

                                                                                                      Should that maybe be a[0] and a[1]?

                                                                                                      Source https://stackoverflow.com/questions/48779632

                                                                                                      Community Discussions, Code Snippets contain sources that include Stack Exchange Network

                                                                                                      Vulnerabilities

                                                                                                      No vulnerabilities reported

                                                                                                      Install SimianArmy

                                                                                                      You can download it from GitHub.
                                                                                                      You can use SimianArmy like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the SimianArmy component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

                                                                                                      Support

                                                                                                      Because the project is no longer maintained, there is a good chance that nobody will be able to answer a support question.
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