kustomize(九) 使用终章-阿里云开发者社区

kustomize(九) 使用终章

2022-12-12 147

版权

本文内容由阿里云实名注册用户自发贡献，版权归原作者所有，阿里云开发者社区不拥有其著作权，亦不承担相应法律责任。具体规则请查看《阿里云开发者社区用户服务协议》和《阿里云开发者社区知识产权保护指引》。如果您发现本社区中有涉嫌抄袭的内容，填写侵权投诉表单进行举报，一经查实，本社区将立刻删除涉嫌侵权内容。

简介： kustomize(九) 使用终章

扩展阅读：

kustomize (一) 管理yaml部署入门hello world

kustomize (二) ConfigMap的生成和滚动更新

kustomize (三) devops和开发配合管理配置数据behavior: merge、namePrefix、nameSuffix

kustomize (四) generatorOptions详解

kustomize (五) 使用vars将 k8s runtime数据注入容器

kustomize(六)命令行常用编排

kustomize (七)patches、patchesJson6902、patchesStrategicMerge详解

kustomize (八)生成secret

kustomize(九)使用终章

文章目录

1. kustomization API说明

2. bases

bases在v2.1.0中已弃用该字段

bases移到resonrces字段中。这使得基础（仍然是一个资源中心概念）相对于其他输入资源进行排序。

3. commonAnnotations

为所有资源添加注释，如果资源上已经存在注解键，该值将被覆盖。

cat <<EOF >./deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    app: nginx
spec:
EOF
cat <<EOF >./kustomization.yaml
namespace: my-namespace
commonAnnotations:
  oncallPager: 800-555-1212
resources:
- deployment.yaml
EOF

运行kubectl kustomize ./查看Deployment资源中设置的所有字段:

apiVersion: apps/v1
kind: Deployment
metadata:
  annotations:
    oncallPager: 800-555-1212
  labels:
    app: bingo
  name: dev-nginx-deployment-001
  namespace: my-namespace
spec:
....

4. commonLabels

为所有资源和 selectors 增加标签。如果资源上已经存在注解键，该值将被覆盖。

cat <<EOF > deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-nginx
spec:
  selector:
    matchLabels:
      run: my-nginx
  replicas: 2
  template:
    metadata:
      labels:
        run: my-nginx
    spec:
      containers:
      - name: my-nginx
        image: nginx
        ports:
        - containerPort: 80
EOF
# Create a kustomization.yaml
cat <<EOF >./kustomization.yaml
namePrefix: dev-
commonLabels:
  app: my-nginx
resources:
- deployment.yaml
EOF

运行kubectl kustomize ./查看Deployment资源中设置的所有字段:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-nginx
spec:
  selector:
    matchLabels:
      run: my-nginx
      app: my-nginx
  replicas: 2
  template:
    metadata:
      labels:
        run: my-nginx
        app: my-nginx
    spec:
      ....

5. images

修改镜像的名称、tag 或 image digest。

通过在kustomize .yaml的images字段中指定新的镜像来更改容器内使用的镜像。

cat <<EOF > deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-nginx
spec:
  template:
    spec:
      containers:
      - name: my-nginx
        image: nginx
        ports:
        - containerPort: 80
EOF
cat <<EOF >./kustomization.yaml
resources:
- deployment.yaml
images:
- name: nginx
  newName: my.image.registry/nginx
  newTag: 1.4.0
EOF

运行kubectl kustomize ./查看正在使用的镜像是否更新:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-nginx
spec:
  template:
    spec:
      containers:
      - image: my.image.registry/nginx:1.4.0
        name: my-nginx
        ports:
        - containerPort: 80

6. namePrefix

为所有资源和引用的名称添加前缀。

服务名称可能会发生更改。不建议在命令参数中硬编码服务名称。对于这种用法，Kustomize可以通过vars将服务名称注入容器

cat <<EOF > deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-nginx
spec:
  selector:
    matchLabels:
      run: my-nginx
  replicas: 2
  template:
    metadata:
      labels:
        run: my-nginx
    spec:
      containers:
      - name: my-nginx
        image: nginx
        command: ["start", "--host", "\$(MY_SERVICE_NAME)"]
EOF
# Create a service.yaml file
cat <<EOF > service.yaml
apiVersion: v1
kind: Service
metadata:
  name: my-nginx
  labels:
    run: my-nginx
spec:
  ports:
  - port: 80
    protocol: TCP
  selector:
    run: my-nginx
EOF
cat <<EOF >./kustomization.yaml
namePrefix: dev-
nameSuffix: "-001"
resources:
- deployment.yaml
- service.yaml

运行kubectl kustomize ./查看注入容器的服务名称是dev-my-nginx-001:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: dev-my-nginx-001
spec:
  replicas: 2
  selector:
    matchLabels:
      run: my-nginx
  template:
    metadata:
      labels:
        run: my-nginx
    spec:
      containers:
      - command:
        - start
        - --host
        - dev-my-nginx-001
        image: nginx
        name: my-nginx

7. namespace

为所有资源添加 namespace。

如果在资源上设置了现有 namespace，则将覆盖现有 namespace；如果在资源上未设置现有 namespace，则使用现有 namespace

cat <<EOF >./deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    app: nginx
EOF
cat <<EOF >./kustomization.yaml
namespace: my-namespace
resources:
- deployment.yaml
EOF

运行kubectl kustomize ./查看Deployment

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: nginx
  name: dev-nginx-deployment
  namespace: my-namespace

8. nameSuffix

为所有资源和引用的名称添加后缀。

cat <<EOF > deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-nginx
spec:
EOF
# Create a service.yaml file
cat <<EOF > service.yaml
apiVersion: v1
kind: Service
metadata:
  name: my-nginx
spec:
EOF
cat <<EOF >./kustomization.yaml
nameSuffix: "-001"
resources:
- deployment.yaml
- service.yaml

运行kubectl kustomize ./查看注入容器的服务名称是my-nginx-001:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-nginx-001
spec:
---
apiVersion: v1
kind: Service
metadata:
  name: my-nginx-001
spec:

参考链接：

https://github.com/kubernetes-sigs/kustomize/blob/master/examples/zh/README.md

https://blog.csdn.net/weixin_37546425/article/details/109214976