7.4 部署到 production 环境

由于一般情况下，我们的生产环境（production）与测试环境或预生产环境不会处于同一个k8s集群，故，这次，会使用一个新的 k8s 集群部署我们的测试示例。

1. 查看 k8s config

$ cat ~/.kube/config
apiVersion: v1
clusters:
...
    server: https://192.168.20.82:6443
...

2. 配置环境变量

项目页面 -> 用户设置 -> CI/CD -> 变量

3. 设置 .gitlab-ci.yml

...
deploy_production:
  stage: production
  image: harbor.xiodi.cn/tools/kubectl:1.14.8
  variables:
    INGRESS_HOST: production.xiodi.cn
    REGISTRY_VERSION: $CI_COMMIT_TAG
  tags:
    - docker
    - host20133-docker
  environment:
    name: production
    url: http://production.xiodi.cn/hello
  script:
    - export
    - cat "$KUBE82_CONFIG" > ~/kube82
    - cat ~/kube82
    - export KUBECONFIG=~/kube82
    - kubectl delete --ignore-not-found=true secret  regcred
    - kubectl create secret docker-registry regcred --docker-server=$CI_REGISTRY --docker-username=$GITLAB_DEPLOY_USER --docker-password=$GITLAB_DEPLOY_PW
    - cat Deploy/kubernetes/deployment-edu-java-spring.yml | envsubst | kubectl apply -f -
    - cat Deploy/kubernetes/service-edu-java-spring.yml | envsubst | kubectl apply -f -
    - cat Deploy/kubernetes/ingress-edu-java-spring.yml | envsubst | kubectl apply -f -
  only:
    variables:
      - $CI_COMMIT_TAG =~ /^v.*/

创建合并请求：从 dev 合并到 master，创建 v1.0 tag

4. k8s 验证

$ kubectl get pods
$ kubectl get ingress