Liuye Notebook
0%

Kubernetes-helm

发表于 更新于 分类于 阅读次数： Valine：

阅读更多

1 helm语法

  1. 内建对象

2 Tips

从运行时提取信息，并注入到环境变量中

1
2
3
4
5
6
containers:
- env:
  - name: NODE_IP
    valueFrom:
      fieldRef:
        fieldPath: status.hostIP

环境变量相互引用

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
containers:
  env:
  - name: DB_URL_HOSTNAME               // part 1
    valueFrom:
      secretKeyRef:
        name: my-database-credentials
        key: hostname

  - name: DB_URL_PORT                   // part 2
    valueFrom:
      secretKeyRef:
        name: my-database-credentials
        key: port

  - name: DB_URL_DBNAME                 // part 3
    valueFrom:
      secretKeyRef:
        name: my-database-credentials
        key: database

  - name: DATABASE_URL                  // combine
    value: jdbc:postgresql:$(DB_URL_HOSTNAME):$(DB_URL_PORT)/$(DB_URL_DBNAME)

3 参考