Tekton安装及Hello world
安装
kubectl apply --filename https://storage.googleapis.com/tekton-releases/pipeline/latest/release.yaml
检查安装的tekton相关的CRD:
kubectl api-resources | grep tekton
clustertasks tekton.dev false ClusterTask
conditions tekton.dev true Condition
pipelineresources tekton.dev true PipelineResource
pipelineruns pr,prs tekton.dev true PipelineRun
pipelines tekton.dev true Pipeline
taskruns tr,trs tekton.dev true TaskRun
tasks tekton.dev true Task
tekton的两个pod:
kubectl get pods --namespace tekton-pipelines
NAME READY STATUS RESTARTS AGE
tekton-pipelines-controller-556d8f4494-2qthv 1/1 Running 0 11m
tekton-pipelines-webhook-849cff5cf-8m5qq 1/1 Running 0 11m
安装CLI
cli: https://github.com/tektoncd/cli#installing-tkn
brew install tektoncd-cli
Tekton: hello world
创建一个简单的Task, 只有一个step就是打印出"hello world"
apiVersion: tekton.dev/v1alpha1
kind: Task
metadata:
name: echo-hello-world
spec:
steps:
- name: echo
image: alpine
command:
- echo
args:
- "hello world"
创建一个TaskRun执行上面的Task
apiVersion: tekton.dev/v1alpha1
kind: TaskRun
metadata:
name: echo-hello-world-task-run
spec:
taskRef:
name: echo-hello-world
运行task:
kubectl apply -f <name-of-file.yaml>
检查TaskRun的输出, 执行命令:
tkn taskrun describe echo-hello-world-task-run
Name: echo-hello-world-task-run
Namespace: tekton-pipelines
Task Ref: echo-hello-world
Status
STARTED DURATION STATUS
21 minutes ago 1 minute Succeeded
Input Resources
No resources
Output Resources
No resources
Params
No params
Steps
NAME STATUS
echo Completed
Succeeded状态表示task执行成功.
查看实际的输出, 执行命令:
tkn taskrun logs echo-hello-world-task-run
结果:
[echo] hello world
