《OpenShift 4.x HOL教程汇总》
说明：本文已经在OpenShift 4.8环境中验证
本节将应用镜像部署到“”STAGE区域的项目中。
- 创建“stage-tekton-tasks”任务，将应用镜像部署到STAGE区域。
$ oc apply -f - << EOF
apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
name: stage-tekton-tasks
namespace: ${
CICD}
spec:
params:
- default: tasks
description: The name of the app
name: app_name
type: string
- description: The name dev project
name: dev_project
type: string
- description: The name stage project
name: stage_project
type: string
- description: The app revision/gitsha to send to Stage
name: app_revision
type: string
steps:
- name: cleanup-stage-project
script: >
#!/bin/sh
set -e -o pipefail
echo "Tagging image stream in \$(params.stage_project)/\$(params.app_name):\$(params.app_revision)"
oc tag
\$(params.dev_project)/\$(params.app_name):\$(params.app_revision)
\$(params.stage_project)/\$(params.app_name):\$(params.app_revision)
if oc get dc/\$(params.app_name) -n \$(params.stage_project); then
echo "Tasks dc exists, cleaning up resources "
oc delete -n \$(params.stage_project) dc/\$(params.app_name) svc/\$(params.app_name) route/\$(params.app_name) || echo "Some resources didn't clean up as expected";
fi
image: 'quay.io/openshift/origin-cli:latest'
- name: deploy-new-version-to-stage
script: >
#!/bin/sh
set -e -o pipefail
echo "Deploying new version into \$(params.stage_project) project "
oc new-app --image-stream=\$(params.app_name):\$(params.app_revision) -n \$(params.stage_project)
--as-deployment-config=true -o yaml | oc apply -n \$(params.stage_project) -f -
if ! oc get route/\$(params.app_name) -n \$(params.stage_project) ; then
echo "Route not found, creating a new one"
oc expose svc \$(params.app_name) -n \$(params.stage_project);
fi
image: 'quay.io/openshift/origin-cli:latest'
EOF
- （可选）在测试运行“stage-tekton-tasks”任务前可先手动删除STAGE区域的资源。
$ oc delete all -l app=tekton-tasks -n ${STAGE}
$ oc delete all -l build=tekton-tasks -n ${STAGE}
- 测试运行“stage-tekton-tasks”任务，确认可以运行成功。其中的“user1-stage/tekton-tasks:bde3105 set to user1-dev/tekton-tasks@sha256:dfeb236854a1326d2aba2e95e41ad678715531c3060610a35dc59013fd13c947”是指向应用镜像。注意：参数中“**bde3105 **”为前面获得的“gitsha”。
$ tkn task start stage-tekton-tasks -n ${CICD} --showlog \
--param app_name=tekton-tasks \
--param dev_project=${DEV} \
--param stage_project=${STAGE} \
--param app_revision=bde3105
。。。
[cleanup-stage-project] Tagging image stream in user1-stage/tekton-tasks:bde3105
[cleanup-stage-project] Tag user1-stage/tekton-tasks:bde3105 set to user1-dev/tekton-tasks@sha256:dfeb236854a1326d2aba2e95e41ad678715531c3060610a35dc59013fd13c947.
[cleanup-stage-project] Error from server (NotFound): deploymentconfigs.apps.openshift.io "tekton-tasks" not found
[deploy-new-version-to-stage] Deploying new version into user1-stage project
[deploy-new-version-to-stage] deploymentconfig.apps.openshift.io/tekton-tasks created
[deploy-new-version-to-stage] service/tekton-tasks created
[deploy-new-version-to-stage] Error from server (NotFound): routes.route.openshift.io "tekton-tasks" not found
[deploy-new-version-to-stage] Route not found, creating a new one
[deploy-new-version-to-stage] route.route.openshift.io/tekton-tasks exposed
- 确认已经在“STAGE”项目中生成新的DeploymentConfig和Route等对象。
$ oc get all -n $STAGE
NAME READY STATUS RESTARTS AGE
pod/tekton-tasks-1-deploy 0/1 Completed 0 2m38s
pod/tekton-tasks-1-mfrkb 1/1 Running 0 2m35s
NAME DESIRED CURRENT READY AGE
replicationcontroller/tekton-tasks-1 1 1 1 2m38s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/tekton-tasks ClusterIP 172.30.164.21 <none> 8080/TCP,8443/TCP,8778/TCP 2m39s
NAME REVISION DESIRED CURRENT TRIGGERED BY
deploymentconfig.apps.openshift.io/tekton-tasks 1 1 1 config,image(tekton-tasks:bde3105)
NAME IMAGE REPOSITORY TAGS UPDATED
imagestream.image.openshift.io/tekton-tasks default-route-openshift-image-registry.apps.cluster-84b8.84b8.sandbox996.opentlc.com/user1-stage/tekton-tasks bde3105 2 minutes ago
NAME HOST/PORT PATH SERVICES PORT TERMINATION WILDCARD
route.route.openshift.io/tekton-tasks tekton-tasks-user1-stage.apps.cluster-84b8.84b8.sandbox996.opentlc.com tekton-tasks 8080-tcp None
- 执行以下命令新建“tasks-stage-pipeline”管道，在其中调用了“stage-tekton-tasks”任务。
$ oc apply -f - << EOF
apiVersion: tekton.dev/v1alpha1
kind: Pipeline
metadata:
name: tasks-stage-pipeline
namespace: ${
CICD}
spec:
params:
- description: App version to deploy
name: app_version
type: string
tasks:
- name: deploy-app-to-stage
taskRef:
kind: Task
name: stage-tekton-tasks
params:
- name: app_name
value: tekton-tasks
- name: dev_project
value: ${
DEV}
- name: stage_project
value: ${
STAGE}
- name: app_revision
value: \$(params.app_version)
EOF
或者参照下图在OpenShift控制台中新建名为“tasks-stage-pipeline”的管道，然后在“管道构建器”中创建名为“deploy-app-tasks”的任务，并配置相关参数。
7. 如果需要可以开通从Stage区域访问CICD区域的访问权限。
$ oc policy add-role-to-group edit system:serviceaccounts:${CICD} -n ${STAGE}
- 执行以下命令运行“tasks-stage-pipeline”管道。
$ tkn pipeline start tasks-stage-pipeline -n ${CICD} --showlog --param app_version=bde3105
PipelineRun started: tasks-stage-pipeline-run-x2qwp
Waiting for logs to be available...
[deploy-app-to-stage : cleanup-stage-project] Tagging image stream in user1-stage/tekton-tasks:bde3105
[deploy-app-to-stage : cleanup-stage-project] Tag user1-stage/tekton-tasks:bde3105 set to user1-dev/tekton-tasks@sha256:8735953414726498440f475a1b31dc493fd7a5ba9290398a5d0fc099ac6923d5.
[deploy-app-to-stage : cleanup-stage-project] Error from server (NotFound): deploymentconfigs.apps.openshift.io "tekton-tasks" not found
[deploy-app-to-stage : deploy-new-version-to-stage] Deploying new version into user1-stage project
[deploy-app-to-stage : deploy-new-version-to-stage] deploymentconfig.apps.openshift.io/tekton-tasks created
[deploy-app-to-stage : deploy-new-version-to-stage] service/tekton-tasks configured
[deploy-app-to-stage : deploy-new-version-to-stage] NAME HOST/PORT PATH SERVICES PORT TERMINATION WILDCARD
[deploy-app-to-stage : deploy-new-version-to-stage] tekton-tasks tekton-tasks-user1-stage.apps.cluster-39c8.39c8.sandbox139.opentlc.com tekton-tasks 8080-tcp None
- 进入OpenShift控制台的“拓扑”确认在“user1-stage”项目中应用已经部署好，并可通过“路由”地址访问应用。
