英文:
Configure a side car container for Jenkins slave created with jenkinsci kubernetes-plugin
问题
我有这个YAML文件，用于配置我的Jenkins从节点容器在K8s上通过插件：
clouds:
- kubernetes:
...
name: "kubernetes"
templates:
- name: jenkins-slave
containers:
- image: "..."
name: "jnlp"
resourceLimitCpu: "1000m"
resourceLimitMemory: "4000Mi"
...
如何配置另一个Sidecar容器？我想添加buildkit。像这样添加它不起作用，插件会忽略这个configMap配置：
clouds:
- kubernetes:
...
name: "kubernetes"
templates:
- name: jenkins-slave
containers:
- image: "..."
name: "jnlp"
resourceLimitCpu: "1000m"
resourceLimitMemory: "4000Mi"
...
- image: "moby/buildkit"
name: "buildkit"
我看到在文档中，我可以配置类似additionalContainers的东西，但我不知道如何设置它。
英文:
I have this yaml file that configures my Jenkins slave container on k8s via the plugin:
clouds:
- kubernetes:
...
name: "kubernetes"
templates:
- name: jenkins-slave
containers:
- image: "..."
name: "jnlp"
resourceLimitCpu: "1000m"
resourceLimitMemory: "4000Mi"
...
How can I configure another sidecar container? I want to add buildkit. Adding it like this doesn't work, the plugin just ignores this configMap configuration:
clouds:
- kubernetes:
...
name: "kubernetes"
templates:
- name: jenkins-slave
containers:
- image: "..."
name: "jnlp"
resourceLimitCpu: "1000m"
resourceLimitMemory: "4000Mi"
...
- image: "moby/buildkit"
name: "buildkit"
I saw that in the docs I can configure something like additionalContainers but I can't understand how I can set it.
答案1
得分: 0
如果您使用CASC插件配置您的代理，
此示例可以帮助您：
jenkins:
clouds:
- kubernetes:
name: "advanced-k8s-config"
serverUrl: "https://advanced-k8s-config:443"
serverCertificate: "serverCertificate"
skipTlsVerify: true
credentialsId: "advanced-k8s-credentials"
namespace: "default"
jenkinsUrl: "http://jenkins/"
jenkinsTunnel: "jenkinsTunnel"
containerCapStr: 42
maxRequestsPerHostStr: 64
retentionTimeout: 5
connectTimeout: 10
readTimeout: 20
templates:
- name: "test"
serviceAccount: "serviceAccount"
instanceCap: 1234
idleMinutes: 0
label: "label"
# 是否在每个构建日志中显示POD Yaml，默认为`true`。
showRawYaml: true
volumes:
- hostPathVolume:
mountPath: "mountPath"
hostPath: "hostPath"
containers:
- name: "name"
image: "image"
privileged: true
alwaysPullImage: true
command: "command"
args: "args"
workingDir: "workingDir"
ttyEnabled: true
resourceRequestCpu: "resourceRequestCpu"
resourceRequestMemory: "resourceRequestMemory"
resourceLimitCpu: "resourceLimitCpu"
resourceLimitMemory: "resourceLimitMemory"
imagePullSecrets:
- name: "imagePullSecrets"
envVars:
- envVar:
key: "FOO"
value: "BAR"
- name: "k8s-agent"
namespace: "default"
label: "linux-x86_64"
nodeUsageMode: EXCLUSIVE
containers:
- name: "jnlp"
image: "jenkins/inbound-agent:latest"
alwaysPullImage: true
workingDir: "/home/jenkins"
ttyEnabled: true
resourceRequestCpu: "500m"
resourceLimitCpu: "1000m"
resourceRequestMemory: "1Gi"
resourceLimitMemory: "2Gi"
volumes:
- emptyDirVolume:
memory: false
mountPath: "/tmp"
# 使用ConfigMap `configmap-name` 的数据 `config` 挂载内容。
- configMapVolume:
configMapName: configmap-name
mountPath: /home/jenkins/.aws/config
subPath: config
idleMinutes: "1"
activeDeadlineSeconds: "120"
slaveConnectTimeout: "1000"
也可以在此处查看文档：[https://plugins.jenkins.io/kubernetes/#plugin-content-pod-template](https://plugins.jenkins.io/kubernetes/#plugin-content-pod-template)
PS：某些名称与K8s的名称不同，插件会封装所有内容，并且所有代理都应该有 "jnlp" 容器，它由Jenkins自身使用并且其中有Java客户端。您可以运行任何您想要的代理并在流水线中切换容器。
在模板示例中有2个容器：
```yaml
jenkins:
clouds:
- kubernetes:
name: "advanced-k8s-config"
serverUrl: "https://advanced-k8s-config:443"
serverCertificate: "serverCertificate"
skipTlsVerify: true
credentialsId: "advanced-k8s-credentials"
namespace: "default"
jenkinsUrl: "http://jenkins/"
jenkinsTunnel: "jenkinsTunnel"
containerCapStr: 42
maxRequestsPerHostStr: 64
retentionTimeout: 5
connectTimeout: 10
readTimeout: 20
templates:
- name: "templatename"
label: "label"
showRawYaml: true
containers:
- name: "name1"
command: "cat"
args: ''
alwaysPullImage: true
image: "anyrandomimage"
workingDir: '/home/jenkins/agent'
ttyEnabled: true
- name: "name2"
command: "cat"
args: ''
alwaysPullImage: true
image: "anyrandomimage2"
workingDir: '/home/jenkins/agent'
ttyEnabled: true
流水线示例：
pipeline {
agent {
kubernetes {
cloud 'YOUR PREDEFINED CLOUD NAME FROM PLUGIN'
defaultContainer 'jnlp'
yaml """apiVersion: v1
kind: Pod
metadata:
labels:
app: myapp
spec:
serviceAccountName: k8s-agent
containers:
- name: maven
image: maven:latest
command:
- cat
tty: true
- name: docker
image: docker:latest
command:
- cat
tty: true
volumeMounts:
- mountPath: /var/run/docker.sock
name: docker-sock
volumes:
- name: docker-sock
hostPath:
path: /var/run/docker.sock
"""
}
}
stages {
stage ('build java') {
steps {
container('maven') {
sh 'mvn clean install'
}
}
}
stage ('build docker image'){
steps {
container('docker') {
sh 'docker build -t image:v1 .'
}
}
}
}
}
英文:
if you use CASC plugin to configure you agents
this example can help you
jenkins:
clouds:
- kubernetes:
name: "advanced-k8s-config"
serverUrl: "https://advanced-k8s-config:443"
serverCertificate: "serverCertificate"
skipTlsVerify: true
credentialsId: "advanced-k8s-credentials"
namespace: "default"
jenkinsUrl: "http://jenkins/"
jenkinsTunnel: "jenkinsTunnel"
containerCapStr: 42
maxRequestsPerHostStr: 64
retentionTimeout: 5
connectTimeout: 10
readTimeout: 20
templates:
- name: "test"
serviceAccount: "serviceAccount"
instanceCap: 1234
idleMinutes: 0
label: "label"
# Enable whether the POD Yaml is displayed in each build log or not, `true` by default.
showRawYaml: true
volumes:
- hostPathVolume:
mountPath: "mountPath"
hostPath: "hostPath"
containers:
- name: "name"
image: "image"
privileged: true
alwaysPullImage: true
command: "command"
args: "args"
workingDir: "workingDir"
ttyEnabled: true
resourceRequestCpu: "resourceRequestCpu"
resourceRequestMemory: "resourceRequestMemory"
resourceLimitCpu: "resourceLimitCpu"
resourceLimitMemory: "resourceLimitMemory"
imagePullSecrets:
- name: "imagePullSecrets"
envVars:
- envVar:
key: "FOO"
value: "BAR"
- name: "k8s-agent"
namespace: "default"
label: "linux-x86_64"
nodeUsageMode: EXCLUSIVE
containers:
- name: "jnlp"
image: "jenkins/inbound-agent:latest"
alwaysPullImage: true
workingDir: "/home/jenkins"
ttyEnabled: true
resourceRequestCpu: "500m"
resourceLimitCpu: "1000m"
resourceRequestMemory: "1Gi"
resourceLimitMemory: "2Gi"
volumes:
- emptyDirVolume:
memory: false
mountPath: "/tmp"
# Mount the content of the ConfigMap `configmap-name` with the data `config`.
- configMapVolume:
configMapName: configmap-name
mountPath: /home/jenkins/.aws/config
subPath: config
idleMinutes: "1"
activeDeadlineSeconds: "120"
slaveConnectTimeout: "1000"
also you can check documentation here https://plugins.jenkins.io/kubernetes/#plugin-content-pod-template
ps some names differs to what K8s has, plugin wraps everything
and all agent should have "jnlp" container - it used by jenkins itself and has java client on it
you can run any agent you want and switch container in pipeline documentation
container('your-second-container-name') {
sh 'hostname'
}
2 containers in template example:
jenkins:
clouds:
- kubernetes:
name: "advanced-k8s-config"
serverUrl: "https://advanced-k8s-config:443"
serverCertificate: "serverCertificate"
skipTlsVerify: true
credentialsId: "advanced-k8s-credentials"
namespace: "default"
jenkinsUrl: "http://jenkins/"
jenkinsTunnel: "jenkinsTunnel"
containerCapStr: 42
maxRequestsPerHostStr: 64
retentionTimeout: 5
connectTimeout: 10
readTimeout: 20
templates:
- name: "templatename"
label: "label"
showRawYaml: true
containers:
- name: "name1"
command: "cat"
args: ''
alwaysPullImage: true
image: "anyrandomimage"
workingDir: '/home/jenkins/agent'
ttyEnabled: true
- name: "name2"
command: "cat"
args: ''
alwaysPullImage: true
image: "anyrandomimage2"
workingDir: '/home/jenkins/agent'
ttyEnabled: true
pipeline example:
pipeline {
agent {
kubernetes {
cloud 'YOUR PREDEFINED CLOUD NAME FROM PLUGIN'
defaultContainer 'jnlp'
yaml """
apiVersion: v1
kind: Pod
metadata:
labels:
app: myapp
spec:
serviceAccountName: k8s-agent
containers:
- name: maven
image: maven:latest
command:
- cat
tty: true
- name: docker
image: docker:latest
command:
- cat
tty: true
volumeMounts:
- mountPath: /var/run/docker.sock
name: docker-sock
volumes:
- name: docker-sock
hostPath:
path: /var/run/docker.sock
"""
}
}
stages {
stage ('build java') {
steps {
container('maven') {
sh 'mvn clean install'
}
}
}
stage ('build docker image'){
steps {
container('docker') {
sh 'docker build -t image:v1 .'
}
}
}
}
}
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