redis.host=127.0.0.1

redis.port=6379

redis.password=123456

kubectl create configmap redis-config --from-file=./redis.properties

NAME DATA AGE

redis-config 1 8s

Name: redis-config

Namespace: default

Labels: <none>

Annotations: <none>

Data

====

redis.properties:

----

redis.host=127.0.0.1

redis.port=6379

redis.password=123456

Events: <none>

apiVersion: v1

kind: Pod

metadata:

  name: mypod

spec:

  containers:

    - name: busybox

      image: busybox

      command: [ "/bin/sh","-c","cat /etc/config/redis.properties" ]

      volumeMounts:

      - name: config-volume

        mountPath: /etc/config

  volumes:

    - name: config-volume

      # 指定保存的配置文件

      configMap:

        # 配置文件名称

        name: redis-config

  restartPolicy: Never

kubectl create -f cm.yaml 

redis.host=127.0.0.1

redis.port=6379

redis.password=123456

apiVersion: v1

kind: ConfigMap

metadata:

  # 指定命名空间

  name: myconfig

  namespace: default

# 指定level type

data:

  # 指定变量 value则是配置文件的配置

  special.level: info

  special.type: hello

kubectl create -f myconfig.yaml

NAME DATA AGE

myconfig 2 23s

redis-config 1 11m

apiVersion: v1

kind: Pod

metadata:

  name: mypod

spec:

  containers:

    - name: busybox

      image: busybox

      command: [ "/bin/sh", "-c", "echo $(LEVEL) $(TYPE)" ]

      env:

        - name: LEVEL

          valueFrom:

            # 通过key加载配置文件

            configMapKeyRef:

              # 使用的key

              name: myconfig

              key: special.level

        - name: TYPE

          valueFrom:

            configMapKeyRef:

              # 使用的type

              name: myconfig

              key: special.type

  restartPolicy: Never

info hello