Knative - Tekton Pipeline入门案例【十六】

基于Tekton创建并运行Pipeline，通常遵循的步骤

基于Tekton创建并运行Pipeline，通常遵循的步骤：
        1、定义Tasks，在各Task中定义Step完成具体的操作步骤；
            每个Step都会运行为一个独立的容器，通常我们要根据该Step的目标来选择合用的容器Image；

        2、定义Pipeline，引用Task，并以特定的次序组织这些Task的的运行顺序；

        3、定义PipelineRun，手动触发Pipeline运行；
            创建完成之后，就相当于自动地将Pipeline中引用的Task依次运行为TaskRun；

            Pipeline的触发条件：
                手动：手动创建一个PipelineRun来完成；

        3、定义Trigger，自动触发Pipeline执行；
            创建PipelineRun Template，并订阅某类事件；

            事件产生时，会自动提取事件中的属性，并赋值给PipelineRun Template，完成PipelineRun实例化

部署实验

Task

【01】Task简单运行

[root@xksmaster1 02-tekton-basics]# cat 01-task-hello.yaml
apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
  name: hello
spec:
  steps:
    - name: say-hello
      image: alpine:3.15
      command: ['/bin/sh']
      args: ['-c', 'echo Hello World']
[root@xksmaster1 02-tekton-basics]# cat 01-taskrun-hello.yaml
apiVersion: tekton.dev/v1beta1
kind: TaskRun
metadata:
  name: hello-run-00001
spec:
  taskRef:
    kind: Task
    name: hello
    
[root@xksmaster1 02-tekton-basics]# kubectl apply -f 01-task-hello.yaml
task.tekton.dev/hello configured
[root@xksmaster1 02-tekton-basics]# kubectl apply -f 01-taskrun-hello.yaml
taskrun.tekton.dev/hello-run-00001 created

[root@xksmaster1 02-tekton-basics]# kubectl get pods | grep 0001
hello-run-00001-pod                            0/2     Completed          1                58s

#查看日志情况
[root@xksmaster1 02-tekton-basics]# tkn taskrun logs -f hello-run-00001
[say-hello] Hello World

[istio-proxy] 2023/06/26 06:05:06 Exiting...

【02】Task-执行应用默认参数和指定参数

#Task 默认参数为 MageEdu.Com
[root@xksmaster1 02-tekton-basics]# cat 02-task-with-params.yaml
apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
  name: hello-params
spec:
  params:
    - name: target
      type: string
      description: Name of somebody or something to greet
      default: MageEdu.Com
  steps:
    - name: say-hello
      image: alpine:3.15
      command:
        - /bin/sh
      args: ['-c', 'echo Hello $(params.target)']

[root@xksmaster1 02-tekton-basics]# kubectl apply -f 02-task-with-params.yaml
task.tekton.dev/hello-params created

[root@xianchaomaster1 02-tekton-basics]# tkn task list
NAME           DESCRIPTION   AGE
hello-params                 32 seconds ago

#启动task
[root@xksmaster1 02-tekton-basics]# tkn task start hello-params --showlog
? Value for param `target` of type `string`? (Default is `MageEdu.Com`) MageEdu.Com
TaskRun started: hello-params-run-fg9hd
Waiting for logs to be available...
[say-hello] Hello MageEdu.Com

[root@xksmaster1 02-tekton-basics]# tkn task start hello-params --showlog -p target=BIRKHOFFXIA
TaskRun started: hello-params-run-l8ppr
Waiting for logs to be available...
[say-hello] Hello BIRKHOFFXIA

【03】Task-多Step-执行步骤 First和Second步骤

[root@xksmaster1 02-tekton-basics]# cat 03-task-multi-steps.yaml
apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
  name: multiple
spec:
  steps:
    - name: first
      image: alpine:3.15
      command:
        - /bin/sh
      args: ['-c', 'echo First Step']
    - name: second
      image: alpine:3.15
      command:
        - /bin/sh
      args: ['-c', 'echo Second Step']

[root@xksmaster1 02-tekton-basics]# kubectl apply -f 03-task-multi-steps.yaml
task.tekton.dev/multiple created
[root@xksmaster1 02-tekton-basics]# kubectl get task | grep multiple
multiple       22s
[root@xksmaster1 02-tekton-basics]# tkn task start multiple --showlog
TaskRun started: multiple-run-wv2hv
Waiting for logs to be available...
[first] First Step

[second] Second Step

【04】Task-模拟进行多行复杂任务-执行脚本

[root@xksmaster1 02-tekton-basics]# cat 04-task-step-with-script.yaml
apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
  name: script
spec:
  steps:
    - name: step-with-script
      image: alpine:3.16
      script: |
        #!/bin/sh
        echo "Step with Script..."
        echo "Installing necessary tooling"
        apk add curl
        curl -s www.magedu.com && echo "Success" || echo "Fail"
        echo "All done!"
        
[root@xksmaster1 02-tekton-basics]# kubectl apply -f 04-task-step-with-script.yaml
task.tekton.dev/script created

[root@xianchaomaster1 02-tekton-basics]# tkn task list
NAME           DESCRIPTION   AGE
script                       12 seconds ago

#环境原因 运行失败了 不影响
[root@ca-k8s-master01 02-tekton-basics]# tkn task start script --showlog
TaskRun started: script-run-rmdd2
Waiting for logs to be available...
[step-with-script] Step with Script...
[step-with-script] Installing necessary tooling
[step-with-script] fetch https://dl-cdn.alpinelinux.org/alpine/v3.15/main/x86_64/APKINDEX.tar.gz
[step-with-script] fetch https://dl-cdn.alpinelinux.org/alpine/v3.15/community/x86_64/APKINDEX.tar.gz
[step-with-script] (1/5) Installing ca-certificates (20230506-r0)
[step-with-script] (2/5) Installing brotli-libs (1.0.9-r5)
[step-with-script] (3/5) Installing nghttp2-libs (1.46.0-r2)
[step-with-script] (4/5) Installing libcurl (8.5.0-r0)
[step-with-script] (5/5) Installing curl (8.5.0-r0)
[step-with-script] Executing busybox-1.34.1-r7.trigger
[step-with-script] Executing ca-certificates-20230506-r0.trigger
[step-with-script] OK: 8 MiB in 19 packages
[step-with-script] <html>
[step-with-script] <head><title>403 Forbidden</title></head>
[step-with-script] <body>
[step-with-script] <center><h1>403 Forbidden</h1></center>
[step-with-script] <hr><center>nginx</center>
[step-with-script] </body>
[step-with-script] </html>
[step-with-script] Success
[step-with-script] All done!

【05】Task-多行结合参数

[root@xianchaomaster1 02-tekton-basics]# cat 05-task-script-and-parameters.yaml
apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
  name: logger
spec:
  params:
    - name: text
      type: string
      description: something to log
      default: "-"
  steps:
    - name: log
      image: alpine:3.15
      script: |
        apk add -q tzdata
        cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
        DATETIME=$(date "+%F %T")
        echo [$DATETIME] - $(params.text)

        
[root@xksmaster1 02-tekton-basics]# kubectl apply -f 05-task-script-and-parameters.yaml
task.tekton.dev/logger configured

[root@xianchaomaster1 02-tekton-basics]# tkn task list
NAME           DESCRIPTION   AGE
logger                       40 seconds ago

#默认参数为 - 
root@xksmaster1 02-tekton-basics]# tkn task start logger --showlog
? Value for param `text` of type `string`? (Default is `-`) -
TaskRun started: logger-run-6qhpk
Waiting for logs to be available...
[log] [2023-07-10 10:56:38] - -

#指定参数为:0319
[root@xianchaomaster1 02-tekton-basics]# tkn task start logger --showlog
? Value for param `text` of type `string`? (Default is `-`) 0319
TaskRun started: logger-run-4hgxk
Waiting for logs to be available...
[log] [2023-07-10 10:56:38] - 0319

Pipeline

【06】Pipeline-顺序执行 taskRef、runafter

[root@xksmaster1 02-tekton-basics]# cat 06-pipeline-demo.yaml
apiVersion: tekton.dev/v1beta1
kind: Pipeline
metadata:
  name: pipeline-demo
spec:
  tasks:
    - name: first-task
      taskRef:
        name: hello
    - name: second-task
      taskRef:
        name: multiple
      runAfter:
        - first-task
        
[root@xksmaster1 02-tekton-basics]# kubectl apply -f 06-pipeline-demo.yaml
pipeline.tekton.dev/pipeline-demo created

[root@xksmaster1 02-tekton-basics]# kubectl get pipelines
NAME                AGE
hello-goodbye-xks   3h25m
pipeline-demo       38s

[root@xksmaster1 02-tekton-basics]# tkn pipeline list
NAME                AGE              LAST RUN                       STARTED       DURATION   STATUS
hello-goodbye-xks   3 hours ago      hello-goodbye-run-ubuntu-xks   3 hours ago   46s        Succeeded
pipeline-demo       47 seconds ago   ---                            ---           ---        ---

[root@xksmaster1 02-tekton-basics]# tkn pipeline start pipeline-demo --showlog
PipelineRun started: pipeline-demo-run-4p97w
Waiting for logs to be available...
[first-task : say-hello] Hello World
[second-task : first] First Step
[second-task : second] Second Step

【07】Pipelinerun-可以指定serviceaccount 、 timeout、

[root@xksmaster1 02-tekton-basics]# cat 07-pipelinerun-demo.yaml
apiVersion: tekton.dev/v1beta1
kind: PipelineRun
metadata:
  name: pipeline-demo-run-xxxxx
  namespace: default
spec:
  pipelineRef:
    name: pipeline-demo
  serviceAccountName: default
  timeout: 1h0m0s
  
  
[root@xianchaomaster1 02-tekton-basics]# kubectl apply -f 07-pipelinerun-demo.yaml
pipelinerun.tekton.dev/pipeline-demo-run-xxxxx created

[root@xianchaomaster1 02-tekton-basics]# tkn pipelinerun list
NAME                           STARTED          DURATION   STATUS
pipeline-demo-run-xxxxx        3 minutes ago    8s         Succeeded

【08】Pipeline-指定参数对应关系

[root@xksmaster1 02-tekton-basics]# cat 08-pipeline-with-params.yaml
apiVersion: tekton.dev/v1beta1
kind: Pipeline
metadata:
  name: pipeline-with-params
spec:
  params:
    - name: text
      type: string
    - name: username
      type: string
  tasks:
    - name: task-one
      taskRef:
        name: hello-params
      params:
        - name: target
          value: $(params.username)
    - name: task-two
      taskRef:
        name: logger
      params:
        - name: text
          value: $(params.text)


[root@xksmaster1 02-tekton-basics]# kubectl apply -f 08-pipeline-with-params.yaml
pipeline.tekton.dev/pipeline-with-params created

[root@xianchaomaster1 02-tekton-basics]# tkn pipeline list
NAME                   AGE              LAST RUN                       STARTED         DURATION   STATUS
pipeline-with-params   13 seconds ago   ---                            ---             ---        ---

【09】PipelineRun-赋值

[root@xksmaster1 02-tekton-basics]# cat 09-pipelinerun-with-params.yaml
apiVersion: tekton.dev/v1beta1
kind: PipelineRun
metadata:
  name: pipeline-with-params-run-xxxxx
  namespace: default
spec:
  params:
  - name: username
    value: "MageEdu CloudNative Course"
  - name: text
    value: "Something has happened ~~."
  pipelineRef:
    name: pipeline-with-params
  serviceAccountName: default
  timeout: 10m0s


[root@xksmaster1 02-tekton-basics]# kubectl apply -f 09-pipelinerun-with-params.yaml
pipelinerun.tekton.dev/pipeline-with-params-run-xxxxx created

#查看pipeline 列表
[root@xksmaster1 02-tekton-basics]# tkn pipelinerun list
NAME                             STARTED          DURATION   STATUS
pipeline-with-params-run-xxxxx   1 minute ago     16s        Succeeded

#查看日志是否执行成功
[root@xianchaomaster1 02-tekton-basics]# tkn pipelinerun logs pipeline-with-params-run-xxxxx -f
[task-one : say-hello] Hello MageEdu CloudNative Course

[task-two : log] [2023-07-10 12:13:18] - Something has happened ~~.

【10】Pipeline-定义各Task的次序

[root@xksmaster1 02-tekton-basics]# cat 10-pipeline-with-ordered-task.yaml
apiVersion: tekton.dev/v1beta1
kind: Pipeline
metadata:
  name: pipeline-task-ordering
spec:
  tasks:
    - name: task-a
      taskRef:
        name: logger
      params:
      - name: text
        value: "task-A executed"
    - name: task-b
      taskRef:
        name: logger
      params:
      - name: text
        value: "Executed after task-A"
      runAfter: ["task-a"]
    - name: task-c
      taskRef:
        name: logger
      params:
      - name: text
        value: "Executed after task-A"
      runAfter: ["task-a"]
    - name: task-d
      taskRef:
        name: logger
      params:
      - name: text
        value: "Executed after task-B and task-C"
      runAfter: ["task-b", "task-c"]

[root@xianchaomaster1 02-tekton-basics]# kubectl apply -f 10-pipeline-with-ordered-task.yaml
pipeline.tekton.dev/pipeline-task-ordering created


[root@xksmaster1 02-tekton-basics]# tkn pipeline list
NAME                     AGE              LAST RUN                         STARTED          DURATION   STATUS
pipeline-task-ordering   8 seconds ago    ---                              ---              ---        ---

#启动pipeline
[root@xianchaomaster1 02-tekton-basics]# tkn  pipeline start pipeline-task-ordering --showlog
PipelineRun started: pipeline-task-ordering-run-fb8jx
Waiting for logs to be available...
[task-a : log] [2023-07-10 12:07:35] - task-A executed

[task-b : log] [2023-07-10 12:07:54] - Executed after task-A

[task-c : log] [2023-07-10 12:08:10] - Executed after task-A

[task-d : log] [2023-07-10 12:09:41] - Executed after task-B and task-C

#下图界面显示

#1.启动task-a

#2.task-a启动完成，同时启动task-b、task-c

#3.task-b、task-c完成启动 task-c

#4.全部完成

posted @ 2023-06-26 15:20 しみずよしだ阅读(146) 评论(0) 收藏举报

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birkhoffxia

Knative - Tekton Pipeline入门案例【十六】

基于Tekton创建并运行Pipeline，通常遵循的步骤

部署实验

Task

【01】Task简单运行

【02】Task-执行应用默认参数和指定参数

【03】Task-多Step-执行步骤 First和Second步骤

【04】Task-模拟进行多行复杂任务-执行脚本

【05】Task-多行结合参数

Pipeline

【06】Pipeline-顺序执行 taskRef、runafter

【07】Pipelinerun-可以指定serviceaccount 、 timeout、

【08】Pipeline-指定参数对应关系

【09】PipelineRun-赋值

【10】Pipeline-定义各Task的次序

#1.启动task-a

#2.task-a启动完成，同时启动task-b、task-c

#3.task-b、task-c完成启动 task-c

#4.全部完成

公告

birkhoffxia

Knative - Tekton Pipeline入门案例 【十六】

基于Tekton创建并运行Pipeline，通常遵循的步骤

部署实验

Task

【01】Task简单运行

【02】Task-执行应用 默认参数和指定参数

【03】Task-多Step-执行步骤 First和Second步骤

【04】Task-模拟进行多行复杂任务-执行脚本

【05】Task-多行结合参数

Pipeline

【06】Pipeline-顺序执行 taskRef、runafter

【07】Pipelinerun-可以指定serviceaccount 、 timeout、

【08】Pipeline-指定参数 对应关系

【09】PipelineRun-赋值

【10】Pipeline-定义各Task的次序

#1.启动task-a

#2.task-a启动完成，同时启动task-b、task-c

#3.task-b、task-c完成启动 task-c

#4.全部完成

公告

Knative - Tekton Pipeline入门案例【十六】

【02】Task-执行应用默认参数和指定参数

【08】Pipeline-指定参数对应关系