cluster-api | Home for Cluster API , a subproject of sig-cluster-lifecycle | Continuous Deployment library

by kubernetes-sigs Go Version: v1.4.3 License: Apache-2.0

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kandi X-RAY | cluster-api Summary

cluster-api is a Go library typically used in Devops, Continuous Deployment applications. cluster-api has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

Cluster API is a Kubernetes sub-project focused on providing declarative APIs and tooling to simplify provisioning, upgrading, and operating multiple Kubernetes clusters. Started by the Kubernetes Special Interest Group (SIG) Cluster Lifecycle, the Cluster API project uses Kubernetes-style APIs and patterns to automate cluster lifecycle management for platform operators. The supporting infrastructure, like virtual machines, networks, load balancers, and VPCs, as well as the Kubernetes cluster configuration are all defined in the same way that application developers operate deploying and managing their workloads. This enables consistent and repeatable cluster deployments across a wide variety of infrastructure environments.

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Support

cluster-api has a medium active ecosystem.

It has 2944 star(s) with 1130 fork(s). There are 100 watchers for this library.

It had no major release in the last 12 months.

There are 281 open issues and 2716 have been closed. On average issues are closed in 58 days. There are 60 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of cluster-api is v1.4.3

Quality

cluster-api has no bugs reported.

Security

cluster-api has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

cluster-api 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

cluster-api releases are available to install and integrate.

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cluster-api Key Features

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cluster-api Examples and Code Snippets

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Community Discussions

Trending Discussions on cluster-api

Kubernetes Access metrics server API externally

What is the Kubernetes API equivalent of `--context`?

Jenkinsfile switch variable wrongly applied

Calico IP-in-IP connectivity issues with nested containers on Kubernetes

How to add environment variables in Kubernetes config file?

kubernetes authentication against the API server

Keycloak KubeAPI Authentication Fails

What's the recommended way to locate the apiserver from an openshift pod?

QUESTION

Kubernetes Access metrics server API externally

Asked 2021-Feb-15 at 17:30

I am trying to access the metrics server for a k8s cluster without the use of kubectl proxy. After finding the tutorial at https://kubernetes.io/docs/tasks/administer-cluster/access-cluster-api/#without-kubectl-proxy, I've run into an issue.

When making the request curl -X GET $APISERVER/apis/metrics.k8s.io/v1beta1/nodes --header "Authorization: Bearer $TOKEN" --insecure | jq I get the following permissions error:

...

ANSWER

Answered 2021-Feb-15 at 17:30

I figured out it was the apiGroups that needed to be modified. The following ClusterRole and ClusterRoleBinding worked:

Source https://stackoverflow.com/questions/66212280

QUESTION

What is the Kubernetes API equivalent of `--context`?

Asked 2020-Dec-19 at 03:44

With the kubectl command line, I can run commands in a given context using the --context flag, such as:

...

ANSWER

Answered 2020-Dec-19 at 03:44

you can read the contexts from the file and pass it to the CoreV1Api function like below

Source https://stackoverflow.com/questions/65366350

QUESTION

Jenkinsfile switch variable wrongly applied

Asked 2020-Aug-13 at 14:43

I've an issue while using SWITCH on a Jenkinsfile. When the PR is done the pipeline is started using println I see the CHANGE_TARGET is correct to match the CASE condition, however it apply master and all variables are set using the MASTER case values.

the first println return:

The build ENV is test | PR Title: XXX

code example:

...

ANSWER

Answered 2020-Aug-13 at 14:43

You are missing break at the end of every case. When there is no break, Groovy continues and runs the code from the remaining cases.

Source https://stackoverflow.com/questions/63325867

QUESTION

Calico IP-in-IP connectivity issues with nested containers on Kubernetes

Asked 2020-Jan-06 at 16:31

I am implementing a cluster-api controller using Kubernetes as the infrastructure provider - that is, I am trying to run Kubernetes Nodes as Kubernetes Pods and form a cluster within a cluster.

I have this working apart from network connectivity between Pods of the inner cluster (running on Pods of the infrastructure cluster), but I am stuck as to what the issue is.

I am running on GKE, using their default CNI implementation. I am then attempting to use Calico for an overlay implementation of the inner cluster, using IP-in-IP encapsulation so the Nodes of the infrastructure cluster do not need to know how to route inner cluster Pod IPs.

I am creating the infrastructure cluster as follows (the UBUNTU image is needed for the ipip kernel module required by Calico's IP-in-IP encapsulation.

...

ANSWER

Answered 2020-Jan-06 at 16:31

It was necessary to allow ipencap protocol on the GKE nodes:

Source https://stackoverflow.com/questions/59611719

QUESTION

How to add environment variables in Kubernetes config file?

Asked 2019-Dec-16 at 14:18

I'm trying to use Kubernetes Go-Client in my program (which will run outside my Kubernetes cluster) which requires access to config file. The config file requires some token, service account details etc so that the program can access the Kubernetes cluster.

The config file is of the form below:

...

ANSWER

Answered 2019-Dec-16 at 14:18

Thanks Markus for the hint link.

I am writing the answer in Go as the original link showed how to do it from command line. The steps are as follows:

Replace the fields to be modified in the file with something of the form ${X}. In my case e.g. I replaced my-token with ${my-token} and so on.
Here you can set X as an environment variable so that your code can access it during runtime. e.g. by doing export X="abcd" in command line.
Say the file name is config.
Execute the following code:

Source https://stackoverflow.com/questions/59324339

QUESTION

kubernetes authentication against the API server

Asked 2019-Oct-24 at 10:31

I have setup a kubernetes cluster from scratch. This just means I did not use services provided by others, but used the k8s installer it self. Before we used to have other clusters, but with providers and they give you tls cert and key for auth, etc. Now this cluster was setup by myself, I have access via kubectl:

...

ANSWER

Answered 2019-Oct-23 at 06:59

You need to setup RBAC for the user. define roles and rolebinding. follow the link for reference -> https://docs.bitnami.com/kubernetes/how-to/configure-rbac-in-your-kubernetes-cluster/

Source https://stackoverflow.com/questions/58516546

QUESTION

Keycloak KubeAPI Authentication Fails

Asked 2019-May-08 at 15:16

Please refer to the above image, I am trying to access Kubernetes Clusters Using the Kubernetes API and for that purpose as mentioned in documents I am using Python Kuberentes Client, that needs a token to communicate with Kube API.

When I am trying to authenticate the user with the token added in Kube-config file by Kube login everything works fine, where token provided by Keycloak REST API results in an un-authorization error.

I would be glad if anyone could provide any insight on this issue.

...

ANSWER

Answered 2019-May-08 at 15:16

We have resolved the issue, below are our findings and their resolution:

There was a discrepancy in the token generated with KubeLogin client and Keycloak Rest API, issuer URL is hostname in the token generated with KubeLogin whereas in the token generated with Keycloak Rest API issuer URL is IP Address.
Also, In our(Keycloak instance) generated certificate, we have hostname as issuer name which might be the reason for getting un-authorization errors. We reconfigured the Keycloak with new certificates which have DNS name.
We had to create RBAC with cluster scope.

Source https://stackoverflow.com/questions/55903133

QUESTION

What's the recommended way to locate the apiserver from an openshift pod?

Asked 2018-Apr-17 at 03:45

From the Kubernetes docs (Accessing the API from a Pod):

The recommended way to locate the apiserver within the pod is with the kubernetes DNS name, which resolves to a Service IP which in turn will be routed to an apiserver.

However, this 'kubernetes' dns name does not appear to exist when I was in the shell of an OpenShift pod. I expected it to exist by default due the Kubernetes running underneath, but am I mistaken? This was using OpenShift Container Platform version 3.7.

Is there a standard way to access the apiserver short of passing it in as an environment variable or something?

...

ANSWER

Answered 2018-Apr-17 at 03:45

In OpenShift, you can use:

Source https://stackoverflow.com/questions/49869047

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

Vulnerabilities

No vulnerabilities reported

Install cluster-api

You can download it from GitHub.

Support

Cluster API is developed in the open, and is constantly being improved by our users, contributors, and maintainers. It is because of you that we are able to automate cluster lifecycle management for the community. Join us!.

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