Kubernetes plugin

The following plugin provides functionality available through Pipeline-compatible steps. Read more about how to integrate steps into your Pipeline in the Steps section of the Pipeline Syntax page.

For a list of other such plugins, see the Pipeline Steps Reference page.

Table of Contents

Kubernetes plugin

Kubernetes plugin

View this plugin on the Plugins site

`container`: Run build steps in a container

Selects a container of the agent pod so that all shell steps are executed in that container.

name
- Type: String
shell (optional)
Specifies a shell which will run inside the container and process requests from Jenkins to run executables, set environment variables, and similar infrastructure.

This does not affect the shell used to run user code, such as sh steps. To run your scripts with a specific shell on Linux, use an interpreter line:
```
sh '''#!/bin/bash
for x in {0..9}; do echo x; done
'''
```
or just use a subprocess and an externally versioned script:
```
sh 'bash ci.sh'
```
On Windows, choose between the bat or powershell steps.

For a pod running on Linux, defaults to sh, which should be in $PATH; for a pod running on Windows, defaults to cmd, which should be in %Path%. Should not generally be overridden.
- Type: String

`podTemplate`: Define a podTemplate to use in the kubernetes plugin

Defines a Kubernetes pod template that can be used to create nodes.

Example:

podTemplate(...) {
    node(POD_LABEL) {
        // some steps
    }
}

activeDeadlineSeconds (optional)
- Type: int
annotations (optional)
- key
  The annotation key.
  - Type: String
- value
  The annotation value.
  - Type: String
cloud (optional)
The Kubernetes cloud to use to schedule the pod.
If unset, the first available Kubernetes cloud will be used.
- Type: String
containers (optional)
- name
  The name for the container to be run. One container is automatically created with name jnlp, and runs the Jenkins JNLP agent service. In order to replace the default JNLP agent, the name of the container with the custom JNLP image must be jnlp.
  - Type: String
- image
  Docker image ID for a jenkins JNLP agent. This image is responsible to run a jenkins jnlp bootstrap agent and connect to Jenkins controller. Secret key and agent name as well as jenkins callback URL are passed as argument as expected by hudson.remoting.jnlp.Main.
  - Type: String
- alwaysPullImage (optional)
  If ticked, the latest version of the image will be pulled every time it is used. See Images - Kubernetes for the default Kubernetes behaviour.
  - Type: boolean
- args (optional)
  Arguments to pass to the command.
  
  ${computer.jnlpmac} and ${computer.name} are replaced with the agent secret and name respectively.
  
  For Windows containers the args Start-Sleep 999999 are reasonable choices to go with powershell.
  - Type: String
- command (optional)
  Override the image entrypoint with a different one.
  
  For Windows containers powershell is a good default.
  - Type: String
- envVars (optional)
  The environment variables to pass to the container.
  - containerEnvVar
    - key
      The environment variable key.
      
      Type: String
    - value
      The environment variable value.
      
      Type: String
  - envVar
    - key
      The environment variable key.
      
      Type: String
    - value
      The environment variable value.
      
      Type: String
  - podEnvVar
    - key
      The environment variable key.
      
      Type: String
    - value
      The environment variable value.
      
      Type: String
  - secretEnvVar
    - key
      The environment variable key.
      
      Type: String
    - secretName
      Name of secret to lookup from Kubernetes.
      
      Type: String
    - secretKey
      Key of secret to lookup from Kubernetes.
      
      Type: String
    - optional
      Whether this secret is optional.
      
      Type: boolean
- livenessProbe (optional)
  - execArgs
    Command executed by the liveness probe.
    - Type: String
  - timeoutSeconds
    Number of seconds after which the probe times out. Defaults to 1 second. Minimum value is 1.
    - Type: int
  - initialDelaySeconds
    Number of seconds after the container has started before liveness or readiness probes are initiated. Defaults to 0 seconds. Minimum value is 0.
    - Type: int
  - failureThreshold
    When a Pod starts and the probe fails, Kubernetes will try failureThreshold times before giving up.
    Giving up in case of liveness probe means restarting the container.
    In case of readiness probe the Pod will be marked Unready. Defaults to 3. Minimum value is 1.
    - Type: int
  - periodSeconds
    How often (in seconds) to perform the probe. Default to 10 seconds. Minimum value is 1.
    - Type: int
  - successThreshold
    Minimum consecutive successes for the probe to be considered successful after having failed. Defaults to 1. Must be 1 for liveness. Minimum value is 1.
    - Type: int
- ports (optional)
  - name (optional)
    The name of the port
    - Type: String
  - containerPort (optional)
    Port to expose into the pod
    - Type: int
  - hostPort (optional)
    Port to expose onto the host
    - Type: int
- privileged (optional)
  Flag to mark the container as privileged.
  - Type: boolean
- resourceLimitCpu (optional)
  Kubernetes Resources Limit of CPU This value can be set to control the CPU resource limit passed when creating the Jenkins agent Docker container in Kubernetes. Unlike a resource request, this is the upper limit of resources used by your Jenkins Agent container. When left blank, the defaults of your Kubernetes cluster will be used. For more info, see the Kubernetes docs. e.g. `500m`.
  - Type: String
- resourceLimitEphemeralStorage (optional)
  - Type: String
- resourceLimitMemory (optional)
  Kubernetes Resources Limit of Memory This value can be set to control the memory resource limit passed when creating the Jenkins agent Docker container in Kubernetes. Unlike a resource request, this is the upper limit of resources used by your Jenkins Agent container. When left blank, the defaults of your Kubernetes cluster will be used. For more info, see the Kubernetes docs. e.g. `250Mi`.
  - Type: String
- resourceRequestCpu (optional)
  Kubernetes Resources Request of CPU This value can be set to control the CPU resources requested when creating the Jenkins agent Docker container in Kubernetes. When left blank, the defaults of your Kubernetes cluster will be used. For more info, see the Kubernetes docs. e.g. `500m`.
  - Type: String
- resourceRequestEphemeralStorage (optional)
  - Type: String
- resourceRequestMemory (optional)
  Kubernetes Resources Request of Memory This value can be set to control the memory resources requested when creating the Jenkins agent Docker container in Kubernetes. When left blank, the defaults of your Kubernetes cluster will be used. For more info, see the Kubernetes docs. e.g. `250Mi`.
  - Type: String
- runAsGroup (optional)
  Specify the gid to run as.
  - Type: String
- runAsUser (optional)
  Specify the uid to run as.
  - Type: String
- shell (optional)
  - Type: String
- ttyEnabled (optional)
  Whether this container should allocate a TTY for itself.
  - Type: boolean
- workingDir (optional)
  Path to the root of the workspace from the view point of this container, such as /home/jenkins/agent.
  - Type: String
envVars (optional)
- containerEnvVar
  - key
    The environment variable key.
    - Type: String
  - value
    The environment variable value.
    - Type: String
- envVar
  - key
    The environment variable key.
    - Type: String
  - value
    The environment variable value.
    - Type: String
- podEnvVar
  - key
    The environment variable key.
    - Type: String
  - value
    The environment variable value.
    - Type: String
- secretEnvVar
  - key
    The environment variable key.
    - Type: String
  - secretName
    Name of secret to lookup from Kubernetes.
    - Type: String
  - secretKey
    Key of secret to lookup from Kubernetes.
    - Type: String
  - optional
    Whether this secret is optional.
    - Type: boolean
hostNetwork (optional)
- Type: boolean
idleMinutes (optional)
- Type: int
imagePullSecrets (optional)
- Type: Array / List of String
inheritFrom (optional)
- Type: String
instanceCap (optional)
- Type: int
label (optional)
Jenkins node label to bind. If left blank, one will be generated for you, and inside the step it will be bound to the variable POD_LABEL so you can use this as the argument to the node step.
Example:
```
        podTemplate(...) {
            node(POD_LABEL) {
                // some steps
            }
        }
    
```
- Type: String
name (optional)
- Type: String
namespace (optional)
- Type: String
nodeSelector (optional)
- Type: String
nodeUsageMode (optional)
- Type: String
podRetention (optional)
- always
- default
- never
- onFailure
runAsGroup (optional)
- Type: String
runAsUser (optional)
- Type: String
schedulerName (optional)
- Type: String
serviceAccount (optional)
- Type: String
showRawYaml (optional)
- Type: boolean
slaveConnectTimeout (optional)
- Type: int
supplementalGroups (optional)
- Type: String
volumes (optional)
- configMapVolume
  - mountPath
    Path to mount this volume inside the pod.
    - Type: String
  - configMapName
    The name of the Kubernetes Config Map to mount into the pod.
    - Type: String
  - optional
    Whether or not this configmap needs to exist.
    - Type: boolean
  - subPath (optional)
    SubPath to mount this volume inside the pod.
    - Type: String
- emptyDirVolume
  - mountPath
    Path to mount this volume inside the pod.
    - Type: String
  - memory
    Flag for in-memory volume.
    - Type: boolean
- hostPathVolume
  - hostPath
    File or directory on the host node's filesystem to mount into the pod.
    - Type: String
  - mountPath
    Path to mount this volume inside the pod.
    - Type: String
- nfsVolume
  - serverAddress
    NFS Server Address.
    - Type: String
  - serverPath
    NFS Server Path.
    - Type: String
  - readOnly
    - Type: boolean
  - mountPath
    Path to mount this volume inside the pod.
    - Type: String
- persistentVolumeClaim
  - mountPath
    Path to mount this volume inside the pod.
    - Type: String
  - claimName
    The claim name.
    - Type: String
  - readOnly
    Flag for read-only volume.
    - Type: boolean
- secretVolume
  - mountPath
    Path to mount this volume inside the pod.
    - Type: String
  - secretName
    The name of the Kubernetes Secret to mount into the pod.
    - Type: String
  - defaultMode
    The file permissions for the secret volume. Does not support Octal notation.
    - Type: String
  - optional
    Whether or not the secret needs to exist.
    - Type: boolean
workingDir (optional)
- Type: String
workspaceVolume (optional)
- dynamicPVC
  - accessModes (optional)
    A PersistentVolume can be mounted on a host in any way supported by the resource provider. Providers will have different capabilities and each PV’s access modes are set to the specific modes supported by that particular volume. For example, NFS can support multiple read/write clients, but a specific NFS PV might be exported on the server as read-only. Each PV gets its own set of access modes describing that specific PV’s capabilities.
    - Type: String
  - requestsSize (optional)
    Claims, like pods, can request specific quantities of a resource. In this case, the request is for storage. The same resource model applies to both volumes and claims.
    - Type: String
  - storageClassName (optional)
    A StorageClass provides a way for administrators to describe the “classes” of storage they offer. Different classes might map to quality-of-service levels, or to backup policies, or to arbitrary policies determined by the cluster administrators. Kubernetes itself is unopinionated about what classes represent. This concept is sometimes called “profiles” in other storage systems.
    - Type: String
- emptyDirWorkspaceVolume
  - memory
    Flag for in-memory volume.
    - Type: boolean
- hostPathWorkspaceVolume
  - hostPath
    File or directory on the host node's filesystem to mount into the pod.
    - Type: String
- nfsWorkspaceVolume
  - serverAddress
    NFS Server Address.
    - Type: String
  - serverPath
    NFS Server Path.
    - Type: String
  - readOnly
    - Type: boolean
- persistentVolumeClaimWorkspaceVolume
  - claimName
    The claim name.
    - Type: String
  - readOnly
    Flag for read-only volume.
    - Type: boolean
yaml (optional)
- Type: String
yamlMergeStrategy (optional)
- merge
- override

`kubeconfig`: Setup Kubernetes CLI (kubectl)

Configure Kubernetes client (kubectl) so it can be used in the build to run Kubernetes commands

serverUrl
URL of the Kubernetes API endpoint. If not set the connection options will be autoconfigured from service account or kube config file.
- Type: String
credentialsId
- Type: String
caCertificate
The base64 encoded certificate of the certificate authority (CA). It is used to verify the server certificate.
Leaving this field empty will skip the certificate verification.
- Type: String

`containerLog`: Get container log from Kubernetes

name
Name of the container, as specified in containerTemplate.
- Type: String
limitBytes (optional)
If set, the number of bytes to read from the server before terminating the log output. This may not display a complete final line of logging, and may return slightly more or slightly less than the specified limit.
- Type: int
returnLog (optional)
Return the container log. If not checked, the log will be printed to the build log.
- Type: boolean
sinceSeconds (optional)
A relative time in seconds before the current time from which to show logs. If this value precedes the time a pod was started, only logs since the pod start will be returned. If this value is in the future, no logs will be returned.
- Type: int
tailingLines (optional)
If set, the number of lines from the end of the log to show. If not specified, log is shown from the creation of the container or limited by "sinceSeconds".
- Type: int

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User Handbook

Tutorials

Resources

Kubernetes plugin

`container`: Run build steps in a container

`podTemplate`: Define a podTemplate to use in the kubernetes plugin

`kubeconfig`: Setup Kubernetes CLI (kubectl)

`containerLog`: Get container log from Kubernetes

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Community

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User Handbook

Tutorials

Resources

Kubernetes plugin

container: Run build steps in a container

podTemplate: Define a podTemplate to use in the kubernetes plugin

kubeconfig: Setup Kubernetes CLI (kubectl)

containerLog: Get container log from Kubernetes

`container`: Run build steps in a container

`podTemplate`: Define a podTemplate to use in the kubernetes plugin

`kubeconfig`: Setup Kubernetes CLI (kubectl)

`containerLog`: Get container log from Kubernetes