Jenkins kubectl command not found

Posted on 05.06.2021 Comments

GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. If nothing happens, download GitHub Desktop and try again.

If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. Allows you to configure kubectl in your job to interact with Kubernetes clusters.

Any tool built on top of kubectl can then be used from your pipelines to perform deployments, e. Initially extracted and rewritten from the Kubernetes Plugin. The plugin generates a kubeconfig file based on the parameters that were provided in the build. Once the build is finished or the pipeline block is exitedthe temporary kubeconfig file is automatically removed.

The following types of credentials are supported and can be used to authenticate against Kubernetes clusters:.

jenkins kubectl command not found

The parameters have a slightly different effect depending if a plain KubeConfig file is provided. The plugin writes the plain KubeConfig file and doesn't change any other field if only credentialsId is filled. The recommended way to use a single KubeConfig file with multiples clusters, users, and default namespaces is to configure a Context for each of them, and use the contextName parameter to switch between them see Kubernetes documentation.

The kubernetes-cli plugin provides the function withKubeConfig for Jenkins Pipeline support. After filling the entries and click Generate Pipeline Script button, you will get the sample scripts which can be used in your Pipeline definition. If you need to use more than one credential at the same time, you can use withKubeCredentials.

jenkins kubectl command not found

It takes an array of the parameters as described for withKubeConfige. The merging is done by kubectl itself, refer to its documentation for details. When providing more than one credential is provided no context will be set by default. The following example describes how you could use the token of a ServiceAccount to access the Kubernetes cluster from Jenkins. The result depends of course on the permissions you have.

On Jenkins, navigate in the folder you want to add the token in, or go on the main page. Then click on the "Credentials" item in the left menu and find or create the "Domain" you want. Finally, paste your token into a Secret text credential.Edit This Page. Kustomize is a standalone tool to customize Kubernetes objects through a kustomization file.

Since 1. To view Resources found in a directory containing a kustomization file, run the following command:. To apply those Resources, run kubectl apply with --kustomize or -k flag:.

You need to have a Kubernetes cluster, and the kubectl command-line tool must be configured to communicate with your cluster. If you do not already have a cluster, you can create one by using Minikubeor you can use one of these Kubernetes playgrounds:. Kustomize is a tool for customizing Kubernetes configurations. It has the following features to manage application configuration files:.

ConfigMap and Secret hold config or sensitive data that are used by other Kubernetes objects, such as Pods. The source of truth of ConfigMap or Secret are usually from somewhere else, such as a.

To generate a ConfigMap from a file, add an entry to files list in configMapGenerator. Here is an example of generating a ConfigMap with a data item from a file content. ConfigMap can also be generated from literal key-value pairs. To generate a ConfigMap from a literal key-value pair, add an entry to literals list in configMapGenerator. Here is an example of generating a ConfigMap with a data item from a key-value pair. You can generate Secrets from files or literal key-value pairs.

To generate a Secret from a file, add an entry to files list in secretGenerator. Here is an example of generating a Secret with a data item from a file.

To generate a Secret from a literal key-value pair, add an entry to literals list in secretGenerator. Here is an example of generating a Secret with a data item from a key-value pair. The generated ConfigMaps and Secrets have a suffix appended by hashing the contents. This ensures that a new ConfigMap or Secret is generated when the content is changed. To disable the behavior of appending a suffix, one can use generatorOptions. Besides that, it is also possible to specify cross-cutting options for generated ConfigMaps and Secrets.

It is quite common to set cross-cutting fields for all Kubernetes resources in a project. Some use cases for setting cross-cutting fields:. Run kubectl kustomize. It is common to compose a set of Resources in a project and manage them inside the same file or directory. Kustomize offers composing Resources from different files and applying patches or other customization to them. Kustomize supports composition of different resources. The resources field, in the kustomization.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I have my jenkins running on EC2 and installed kubectl.

But when jenkins reaches this code below. I think you need to install the kubectl on the slave if it's different with your master node. Learn more. How to setup kubectl within jenkins Ask Question.

Asked 7 months ago. Active 7 months ago. Viewed times. It looks like kubectl command cannot be found on the system you run your script in. Did you try to provide full path to kubectl? Doesn't it help? Check this link. It should help. Active Oldest Votes. Rohith Rohith 2 2 silver badges 10 10 bronze badges. Fauzan Fauzan 1 1 silver badge 9 9 bronze badges.

Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. If nothing happens, download GitHub Desktop and try again.

If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. Based on the Scaling Docker with Kubernetes article, automates the scaling of Jenkins agents running in Kubernetes.

The plugin creates a Kubernetes Pod for each agent started, defined by the Docker image to run, and stops it after each build. Agents are launched using JNLP, so it is expected that the image connects automatically to the Jenkins master. For that some environment variables are automatically injected:. It should be noted that the main reason to use the global pod template definition is to migrate a huge corpus of existing projects incl.

New users setting up new Kubernetes builds should use the podTemplate step as shown in the example snippets here. Fill in the Kubernetes plugin configuration. To test this connection is successful you can use the Test Connection button to ensure there is adequate communication from Jenkins to the Kubernetes cluster, as seen below.

In addition to that, in the Kubernetes Pod Template section, we need to configure the image that will be used to spin up the agent pod.

Setup Kubernetes CLI (kubectl) not working with Credentials Domain

We do not recommend overriding the jnlp container except under unusual circumstances. If Kubernetes URL is not set, the connection options will be autoconfigured from service account or kube config file. When running the Jenkins master outside of Kubernetes you will need to set the credential to secret text.

Failed to connect to repository : Error performing command: pks.pgrepdowa.pw ls-remote -h

The value of the credential will be the token of the service account you created for Jenkins in the cluster the agents will run on. This is unnecessary when the Jenkins master runs in the same Kubernetes cluster, but can greatly simplify setup when agents are in an external cluster and the Jenkins master is not directly accessible for example, it is behind a reverse proxy. See JEP for more.

To enable this, in your cloud's advanced configuration check the Restrict pipeline support to authorized folders box. For a job to then use this cloud configuration you will need to add it in the jobs folder's configuration. Nodes can be defined in a pipeline and then used, however, default execution always goes to the jnlp container.

You will need to specify the container you want to execute your task in. Find more examples in the examples dir. Multiple containers can be defined for the agent pod, with shared resources, like mounts. Ports in each container can be accessed as in any Kubernetes pod, by using localhost.

The podTemplate is a template of a pod that will be used to create agents. It can be either configured via the user interface, or via pipeline. Either way it provides access to the following fields:.

The containerTemplate is a template of container that will be added to the pod. Again, its configurable via the user interface or via pipeline and allows you to set the following fields:. By default, the agent connection timeout is set to seconds. In some case, you would like to set a different value, if so you can set the system property org.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again.

Based on the Scaling Docker with Kubernetes article, automates the scaling of Jenkins agents running in Kubernetes. The plugin creates a Kubernetes Pod for each agent started, defined by the Docker image to run, and stops it after each build. Agents are launched using JNLP, so it is expected that the image connects automatically to the Jenkins master.

For that some environment variables are automatically injected:. It should be noted that the main reason to use the global pod template definition is to migrate a huge corpus of existing projects incl. New users setting up new Kubernetes builds should use the podTemplate step as shown in the example snippets here. Fill in the Kubernetes plugin configuration. To test this connection is successful you can use the Test Connection button to ensure there is adequate communication from Jenkins to the Kubernetes cluster, as seen below.

In addition to that, in the Kubernetes Pod Template section, we need to configure the image that will be used to spin up the agent pod. We do not recommend overriding the jnlp container except under unusual circumstances. If Kubernetes URL is not set, the connection options will be autoconfigured from service account or kube config file.

When running the Jenkins master outside of Kubernetes you will need to set the credential to secret text. The value of the credential will be the token of the service account you created for Jenkins in the cluster the agents will run on. This is unnecessary when the Jenkins master runs in the same Kubernetes cluster, but can greatly simplify setup when agents are in an external cluster and the Jenkins master is not directly accessible for example, it is behind a reverse proxy.

See JEP for more. To enable this, in your cloud's advanced configuration check the Restrict pipeline support to authorized folders box.

For a job to then use this cloud configuration you will need to add it in the jobs folder's configuration.

Configure a CI/CD pipeline with Jenkins on Kubernetes

Nodes can be defined in a pipeline and then used, however, default execution always goes to the jnlp container. You will need to specify the container you want to execute your task in.

Find more examples in the examples dir. Multiple containers can be defined for the agent pod, with shared resources, like mounts. Ports in each container can be accessed as in any Kubernetes pod, by using localhost.

The podTemplate is a template of a pod that will be used to create agents. It can be either configured via the user interface, or via pipeline. Either way it provides access to the following fields:.

The containerTemplate is a template of container that will be added to the pod.Edit This Page. The Kubernetes command-line tool, kubectlallows you to run commands against Kubernetes clusters. You can use kubectl to deploy applications, inspect and manage cluster resources, and view logs. For a complete list of kubectl operations, see Overview of kubectl. You must use a kubectl version that is within one minor version difference of your cluster.

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For example, a v1. Using the latest version of kubectl helps avoid unforeseen issues. If you are on Ubuntu or another Linux distribution that support snap package manager, kubectl is available as a snap application.

If you are on Linux and using Homebrew package manager, kubectl is available for installation. If you are on macOS and using Homebrew package manager, you can install kubectl with Homebrew. If you are on macOS and using Macports package manager, you can install kubectl with Macports.

Download the latest release v1. If you are on Windows and using Powershell Gallery package manager, you can install and update kubectl with Powershell. To install kubectl on Windows you can use either Chocolatey package manager or Scoop command-line installer. In order for kubectl to find and access a Kubernetes cluster, it needs a kubeconfig filewhich is created automatically when you create a cluster using kube-up.

If you see a message similar to the following, kubectl is not configured correctly or is not able to connect to a Kubernetes cluster. For example, if you are intending to run a Kubernetes cluster on your laptop locallyyou will need a tool like Minikube to be installed first and then re-run the commands stated above.

Below are the procedures to set up autocompletion for Bash including the difference between Linux and macOS and Zsh. The kubectl completion script for Bash can be generated with the command kubectl completion bash. Sourcing the completion script in your shell enables kubectl autocompletion. You can install it with apt-get install bash-completion or yum install bash-completionetc.

You now need to ensure that the kubectl completion script gets sourced in all your shell sessions. There are two ways in which you can do this:. Both approaches are equivalent. After reloading your shell, kubectl autocompletion should be working. The kubectl completion script for Bash can be generated with kubectl completion bash.

Sourcing this script in your shell enables kubectl completion. However, the kubectl completion script depends on bash-completion which you thus have to previously install. The instructions here assume you use Bash 4. If not, you can install it with Homebrew:.

You now have to ensure that the kubectl completion script gets sourced in all your shell sessions.

jenkins kubectl command not found

There are multiple ways to achieve this:. The kubectl completion script for Zsh can be generated with the command kubectl completion zsh. Thanks for the feedback.

If you have a specific, answerable question about how to use Kubernetes, ask it on Stack Overflow. Open an issue in the GitHub repo if you want to report a problem or suggest an improvement.

jenkins kubectl command not found

Before you begin Install kubectl on Linux Install kubectl on macOS Install kubectl on Windows Download as part of the Google Cloud SDK Verifying kubectl configuration Optional kubectl configurations What's next Before you begin You must use a kubectl version that is within one minor version difference of your cluster.I have configured kubernetes-cli plugin on my Jenkins to deploy my docker image on Kubernetes cluster.

But when I run my job, I am getting error as below. Caused: java. This allowed me to work around the issue in this way:.

If I tried to set the context name in the parameter, I got the exception observed in this ticket. This feels like a shortcoming of the plugin documentation in that the kubectl binary must be in the path visible to the Jenkins process es which can be considerably different from traditional login shell paths or even pipeline shell paths.

Thank for the feedback Ed Thorne. Issues Reports Components Test sessions. Log In. XML Word Printable. Type: Bug. Status: Closed View Workflow. Priority: Major. Resolution: Not A Defect. Labels: None. Similar Issues:. Hide Permalink. Sunil Chauraha added a comment - Thanks Max Laverse. But if you could create a release with some more logging would be very helpful. Slave nodes ere not able to locate kubectl due to incomplete path for kubernetes cli.

Ed Thorne added a comment - For others that may be experiencing this issue, here's some information that may be useful. Show Ed Thorne added a comment - For others that may be experiencing this issue, here's some information that may be useful. Max Laverse added a comment -