deployment - 如何通过k8s gitlab-ci Runner将某些东西部署到k8s集群？

Question

猫/ etc / redhat-release:

CentOS Linux release 7.2.1511 (Core)

docker 版本:

Client:
 Version:         1.13.1
 API version:     1.26
 Package version: <unknown>
 Go version:      go1.8.3
 Git commit:      774336d/1.13.1
 Built:           Wed Mar  7 17:06:16 2018
 OS/Arch:         linux/amd64

Server:
 Version:         1.13.1
 API version:     1.26 (minimum version 1.12)
 Package version: <unknown>
 Go version:      go1.8.3
 Git commit:      774336d/1.13.1
 Built:           Wed Mar  7 17:06:16 2018
 OS/Arch:         linux/amd64
 Experimental:    false

kubectl版本:

Client Version: version.Info{Major:"1", Minor:"9", GitVersion:"v1.9.5", GitCommit:"f01a2bf98249a4db383560443a59bed0c13575df", GitTreeState:"clean", BuildDate:"2018-03-19T15:59:24Z", GoVersion:"go1.9.3", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"9", GitVersion:"v1.9.0", GitCommit:"925c127ec6b946659ad0fd596fa959be43f0cc05", GitTreeState:"clean", BuildDate:"2017-12-15T20:55:30Z", GoVersion:"go1.9.2", Compiler:"gc", Platform:"linux/amd64"}

gitlab版本: 10.6-ce

gitlab运行程序图像: gitlab / gitlab-runner:alpine-v10.3.0

我只是将kubernetes集群(不是GKE，而是我自己部署的k8s集群)集成到了gitlab项目中，然后在上面安装了gitlab-runner。

所有这些都遵循 Adding an existing Kubernetes cluster。

之后，我在一个阶段添加了一个 .gitlab-ci.yml，并将其推送到存储库中。这里是内容:

build-img:
  stage: docker-build
  script:
#    - docker build -t $CONTAINER_RELEASE_IMAGE .
#    - docker tag $CONTAINER_RELEASE_IMAGE $CONTAINER_LATEST_IMAGE
#    - docker push $CONTAINER_IMAGE
    - env | grep KUBE
    - kubectl --help
  tags:
    - kubernetes
  only:
    - develop

然后我得到了:

$ env | grep KUBE
KUBERNETES_PORT_443_TCP_PORT=443
KUBERNETES_PORT=tcp://10.96.0.1:443
KUBERNETES_SERVICE_PORT=443
KUBERNETES_SERVICE_HOST=10.96.0.1
KUBERNETES_PORT_443_TCP_PROTO=tcp
KUBERNETES_SERVICE_PORT_HTTPS=443
KUBERNETES_PORT_443_TCP_ADDR=10.96.0.1
KUBERNETES_PORT_443_TCP=tcp://10.96.0.1:443
$ kubectl --help
/bin/bash: line 62: kubectl: command not found
ERROR: Job failed: error executing remote command: command terminated with non-zero exit code: Error executing in Docker Container: 1

尚未在运行器中安装 kubectl，也未找到某些环境变量，例如 KUBE_TOKEN， KUBE_CA_PEM_FILE或 KUBECONFIG(请参阅 Deployment variables)。

搜索了gitlab的官方文档，一无所获。

那么，如何通过该运行程序部署项目？

Answer 1

gitlab-runner没有内置命令，它旋转具有预定义图像的容器，然后从该容器中的脚本远程执行命令。

您尚未定义图片，因此将使用gitlab-runner设置中定义的默认图片。

所以，
您可以在script:或before_script:中使用Install kubectl binary using curl之前

build-img:
  stage: docker-build
  before_script:
   - curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl 
   - chmod +x ./kubectl
  script:
   - ...
   - ./kubectl --version 

或使用带有 kubectl的镜像创建单独的部署阶段，例如 roffe/kubectl:

stages:
- docker-build
- deploy

build-img:
  stage: docker-build
  script:
   - docker build -t $CONTAINER_RELEASE_IMAGE .
   - docker tag $CONTAINER_RELEASE_IMAGE $CONTAINER_LATEST_IMAGE
   - docker push $CONTAINER_IMAGE
  tags:
   - kubernetes

deploy:dev:
  stage: deploy 
  image: roffe/kubectl
  script:
   - kubectl .....
  tags:
   - kubernetes