[JENKINS-71581] Dynamic container based on Matrix axis

Type: New Feature
Resolution: Fixed
Priority: Minor
Component/s: kubernetes-plugin
Labels:
- axis
- kubernetes-plugin

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In declarative pipelines, using Matrix axis to run parallel stages, doesn't play well with the `container` DSL.
In the example below, the `container(${CONTAINER})` is not being resolved.

pipeline {
agent none
    stages {
        stage('do') {
            matrix {
                axes {
                    axis {
                        name 'CONTAINER'
                        values 'alpha', 'beta'
                    }
                }
                stages {
                    stage('Init') {
                        agent {
                            kubernetes {
                                yaml '''
                                apiVersion: v1
                                kind: Pod
                                spec: 
                                  containers: 
                                  - name:  alpha
                                    image: alpha:1.0
                                    tty: true
                                  - name: beta
                                    image: beta:2.1
                                    tty: true                   
                                '''
                            }
                        }
                        stages {
                            stage('init') {
                               // Init steps within JNLP container
                            }
                            stage('build') {
                                steps {
                                    container("${CONTAINER}") {
                                        // Steps within the container, re-using the workspace.
                                        sh '...'
                                    }
                                }
                            }
}}}}}}}

Is there another alternative?

update:

It seems that just by wrapping the `container` withing `script` solves this.
Example:

pipeline {
agent none
    stages {
        stage('do') {
            matrix {
                axes {
                    axis {
                        name 'CONTAINER'
                        values 'alpha', 'beta'
                    }
                }
                stages {
                    stage('Init') {
                        agent {
                            kubernetes {
                                yaml '''
                                apiVersion: v1
                                kind: Pod
                                spec: 
                                  containers: 
                                  - name:  alpha
                                    image: alpha:1.0
                                    tty: true
                                  - name: beta
                                    image: beta:2.1
                                    tty: true                   
                                '''
                            }
                        }
                        stages {
                            stage('init') {
                               // Init steps within JNLP container
                            }
                            stage('build') {
                                steps {
                                    script {
                                        container("${CONTAINER}") {
                                            // Steps within the container, re-using the workspace.
                                            sh '...'
                                        }
                                    }
                                }
                            }
}}}}}}}

Nikolaos created issue - 2023-07-03 13:20

Nikolaos made changes - 2023-07-03 14:12

Resolution		New: Fixed [ 1 ]
Status	Original: Open [ 1 ]	New: Closed [ 6 ]

Nikolaos made changes - 2023-07-03 14:13

Description

Nikolaos made changes - 2023-07-03 14:15

Description

New: In declarative pipelines, using Matrix axis to run parallel stages, doesn't play well with the `container` DSL.
In the example below, the `container(${CONTAINER})` is not being resolved.
{code:java}
pipeline {
agent none
stages {
stage('do') {
matrix {
axes {
axis {
name 'CONTAINER'
values 'alpha', 'beta'
}
}
stages {
stage('Init') {
agent {
kubernetes {
yaml '''
apiVersion: v1
kind: Pod
spec:
containers:
- name: alpha
image: alpha:1.0
tty: true
- name: beta
image: beta:2.1
tty: true
'''
}
}
stages {
stage('init') {
// Init steps within JNLP container
}
stage('build') {
steps {
container("${CONTAINER}") {
// Steps within the container, re-using the workspace.
sh '...'
}
}
}
}}}}}}}
{code}
Is there another alternative?

update:

It seems that just by wrapping the `container` withing `script` solves this.
Example:

{code:yaml}
pipeline {
agent none
stages {
stage('do') {
matrix {
axes {
axis {
name 'CONTAINER'
values 'alpha', 'beta'
}
}
stages {
stage('Init') {
agent {
kubernetes {
yaml '''
apiVersion: v1
kind: Pod
spec:
containers:
- name: alpha
image: alpha:1.0
tty: true
- name: beta
image: beta:2.1
tty: true
'''
}
}
stages {
stage('init') {
// Init steps within JNLP container
}
stage('build') {
steps {
                                    script {
container("${CONTAINER}") {
// Steps within the container, re-using the workspace.
sh '...'
}
                                    }
}
}
}}}}}}}
{code}

Nikolaos made changes - 2023-07-03 14:15

Description

Original: In declarative pipelines, using Matrix axis to run parallel stages, doesn't play well with the `container` DSL.
In the example below, the `container(${CONTAINER})` is not being resolved.
{code:java}
pipeline {
agent none
stages {
stage('do') {
matrix {
axes {
axis {
name 'CONTAINER'
values 'alpha', 'beta'
}
}
stages {
stage('Init') {
agent {
kubernetes {
yaml '''
apiVersion: v1
kind: Pod
spec:
containers:
- name: alpha
image: alpha:1.0
tty: true
- name: beta
image: beta:2.1
tty: true
'''
}
}
stages {
stage('init') {
// Init steps within JNLP container
}
stage('build') {
steps {
container("${CONTAINER}") {
// Steps within the container, re-using the workspace.
sh '...'
}
}
}
}}}}}}}
{code}
Is there another alternative?

update:

It seems that just by wrapping the `container` withing `script` solves this.
Example:

{code:yaml}
pipeline {
agent none
stages {
stage('do') {
matrix {
axes {
axis {
name 'CONTAINER'
values 'alpha', 'beta'
}
}
stages {
stage('Init') {
agent {
kubernetes {
yaml '''
apiVersion: v1
kind: Pod
spec:
containers:
- name: alpha
image: alpha:1.0
tty: true
- name: beta
image: beta:2.1
tty: true
'''
}
}
stages {
stage('init') {
// Init steps within JNLP container
}
stage('build') {
steps {
                                    script {
container("${CONTAINER}") {
// Steps within the container, re-using the workspace.
sh '...'
}
                                    }
}
}
}}}}}}}
{code}

New: In declarative pipelines, using Matrix axis to run parallel stages, doesn't play well with the `container` DSL.
In the example below, the `container(${CONTAINER})` is not being resolved.
{code:yaml}
pipeline {
agent none
stages {
stage('do') {
matrix {
axes {
axis {
name 'CONTAINER'
values 'alpha', 'beta'
}
}
stages {
stage('Init') {
agent {
kubernetes {
yaml '''
apiVersion: v1
kind: Pod
spec:
containers:
- name: alpha
image: alpha:1.0
tty: true
- name: beta
image: beta:2.1
tty: true
'''
}
}
stages {
stage('init') {
// Init steps within JNLP container
}
stage('build') {
steps {
container("${CONTAINER}") {
// Steps within the container, re-using the workspace.
sh '...'
}
}
}
}}}}}}}
{code}
Is there another alternative?

*update:*

It seems that just by wrapping the `container` withing `script` solves this.
Example:

{code:yaml}
pipeline {
agent none
stages {
stage('do') {
matrix {
axes {
axis {
name 'CONTAINER'
values 'alpha', 'beta'
}
}
stages {
stage('Init') {
agent {
kubernetes {
yaml '''
apiVersion: v1
kind: Pod
spec:
containers:
- name: alpha
image: alpha:1.0
tty: true
- name: beta
image: beta:2.1
tty: true
'''
}
}
stages {
stage('init') {
// Init steps within JNLP container
}
stage('build') {
steps {
                                    script {
container("${CONTAINER}") {
// Steps within the container, re-using the workspace.
sh '...'
}
                                    }
}
}
}}}}}}}
{code}

Assignee:: Unassigned

Reporter:: Nikolaos

Votes:: 0 Vote for this issue

Watchers:: 1 Start watching this issue

Created:: 2023-07-03 13:20

Updated:: 2023-07-03 14:15

Resolved:: 2023-07-03 14:12

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