kubernetes-tutorial | Kubernetes Tutorial for https : //dn.dev/master | Learning library

by redhat-scholars Java Version: Current License: Apache-2.0

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kandi X-RAY | kubernetes-tutorial Summary

kubernetes-tutorial is a Java library typically used in Tutorial, Learning applications. kubernetes-tutorial has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. However kubernetes-tutorial build file is not available. You can download it from GitHub.

image:image:image:image:You can access the HTML version of this tutorial here:

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Support

kubernetes-tutorial has a low active ecosystem.

It has 292 star(s) with 149 fork(s). There are 31 watchers for this library.

It had no major release in the last 6 months.

There are 2 open issues and 28 have been closed. On average issues are closed in 117 days. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of kubernetes-tutorial is current.

Quality

kubernetes-tutorial has 0 bugs and 0 code smells.

Security

kubernetes-tutorial has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

kubernetes-tutorial code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

kubernetes-tutorial is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

kubernetes-tutorial releases are not available. You will need to build from source code and install.

kubernetes-tutorial has no build file. You will be need to create the build yourself to build the component from source.

Installation instructions, examples and code snippets are available.

Top functions reviewed by kandi - BETA

kandi has reviewed kubernetes-tutorial and discovered the below as its top functions. This is intended to give you an instant insight into kubernetes-tutorial implemented functionality, and help decide if they suit your requirements.

Start the downloader .
Starts the crawling session .
Downloads a file from an URL
Make a custom hello resource for the given namespace .
Calls one call to another node .
Display the given bytes as a human - readable string .
Find the current namespace .
Returns a greeting message .
Get health status .
String representation .

Get all kandi verified functions for this library.

kubernetes-tutorial Key Features

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kubernetes-tutorial Examples and Code Snippets

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Community Discussions

Trending Discussions on kubernetes-tutorial

minikube service is failing to expose URL

How to remove nodePort Kubernetes - Traefik ingress controller

Fluentd Failing to connect to ElasticSearch cluster

QUESTION

minikube service is failing to expose URL

Asked 2021-Aug-21 at 15:40

F:\Udemy\GitRepo\Kubernetes-Tutorial>kubectl get pod -o wide
NAME                             READY   STATUS    RESTARTS   AGE   IP           NODE       NOMINATED NODE   READINESS GATES
my-app-deploy-68698d9757-wrs9z   1/1     Running   0          14m   172.17.0.3   minikube              

F:\Udemy\GitRepo\Kubernetes-Tutorial>minikube service my-app-svc
|-----------|------------|-------------|-----------------------------|
| NAMESPACE |    NAME    | TARGET PORT |             URL             |
|-----------|------------|-------------|-----------------------------|
| default   | my-app-svc |          80 | http://172.30.105.146:30365 |
|-----------|------------|-------------|-----------------------------|
* Opening service default/my-app-svc in default browser...

F:\Udemy\GitRepo\Kubernetes-Tutorial>kubectl describe service my-app-svc
Name:                     my-app-svc
Namespace:                default
Labels:                   
Annotations:              
Selector:                 app=my-app
Type:                     NodePort
IP:                       10.98.9.115
Port:                       80/TCP
TargetPort:               9001/TCP
NodePort:                   30365/TCP
Endpoints:                172.17.0.3:9001
Session Affinity:         None
External Traffic Policy:  Cluster
Events:                   

F:\Udemy\GitRepo\Kubernetes-Tutorial>kubectl logs my-app-deploy-68698d9757-wrs9z

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.3.1.RELEASE)

2021-08-21 13:37:21.046  INFO 1 --- [           main] c.d.d.DockerpublishApplication           : Starting DockerpublishApplication v0.0.3 on my-app-deploy-68698d9757-wrs9z with PID 1 (/app.jar started by root in /)
2021-08-21 13:37:21.050  INFO 1 --- [           main] c.d.d.DockerpublishApplication           : No active profile set, falling back to default profiles: default
2021-08-21 13:37:22.645  INFO 1 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 9091 (http)
2021-08-21 13:37:22.659  INFO 1 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2021-08-21 13:37:22.660  INFO 1 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.36]
2021-08-21 13:37:22.785  INFO 1 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2021-08-21 13:37:22.785  INFO 1 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1646 ms
2021-08-21 13:37:23.302  INFO 1 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
2021-08-21 13:37:23.496  INFO 1 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 9091 (http) with context path ''
2021-08-21 13:37:23.510  INFO 1 --- [           main] c.d.d.DockerpublishApplication           : Started DockerpublishApplication in 3.279 seconds (JVM running for 4.077)

F:\Udemy\GitRepo\Kubernetes-Tutorial>

...

ANSWER

Answered 2021-Aug-21 at 15:40

Your service or application is running on different port as you are getting connection refused.

Spring boot running on the 9091 : Tomcat started on port(s): 9091 (http) with context path ''

But your service is redirecting the traffic TargetPort: 9001/TCP

Your target port should be 9091 instead of 9001

Your will access the application over the node port Ip request, which will reach to the K8s service and be forwarded to the TargetPort: 9091/TCP on which the application is running.

Source https://stackoverflow.com/questions/68873776

QUESTION

How to remove nodePort Kubernetes - Traefik ingress controller

Asked 2020-Jul-10 at 21:19

Following this tutorial:

...

ANSWER

Answered 2020-Jul-10 at 20:49

Try deploying the below code. This is a simple whoami pod which can be deployed along traefik and can be accessed at http://localhost/whoami-app-api when deployed on the local machine. The dashboard is also available at http://localhost:8080/dashboard.

Deployment File:

Source https://stackoverflow.com/questions/62841356

QUESTION

Fluentd Failing to connect to ElasticSearch cluster

Asked 2020-Apr-01 at 12:16

I have a local kubernetes cluster where I added a Fluentd Daemonset using the preconfigured elasticsearch image (fluent/fluentd-kubernetes-daemonset:elasticsearch). Step 2 of this article. I also have an elastic cluster running in the cloud. You can pass some env variables to the fluentd-elasticsearch image for configuration. It looks pretty straightforward, but when running the fluentd Pod I keep getting the error:

"Fluent::ElasticsearchOutput::ConnectionFailure" error="Can not reach Elasticsearch cluster ({:host=>\"fa0acce34bf64db9bc9e46f98743c185.westeurope.azure.elastic-cloud.com\", :port=>9243, :scheme=>\"https\", :user=>\"username\", :password=>\"obfuscated\"})!" plugin_id="out_es"

when I try to reach the elastic cluster from within the pod with # wget https://fa0acce34bf64db9bc9e46f98743c185.westeurope.azure.elastic-cloud.com:9243/ I get a 401 unauthorized (cuz I havent submitted user/pass here), but it at least shows that the address is reachable.

Why is it failing to connect? I already set the FLUENT_ELASTICSEARCH_SSL_VERSION to 'TLSv1_2', i saw that that solved some problems for others.

Daemonset configuration:

...

ANSWER

Answered 2020-Apr-01 at 08:23

For anyone else who runs into this problem:

I was following a tutorial that used the 'image: fluent/fluentd-kubernetes-daemonset:elasticsearch' image. When you check their DockerHub (https://hub.docker.com/r/fluent/fluentd-kubernetes-daemonset) you can see that the :elaticsearch tag is a year old and probably outdated.

I changed the image for the DaemonSet to a more recent and stable tag 'fluent/fluentd-kubernetes-daemonset:v1-debian-elasticsearch' and boom it works now.

Source https://stackoverflow.com/questions/60951905

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

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