Update example to configure pods
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@ -111,46 +111,7 @@ technique also lets you access a ConfigMap in a different namespace.
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Here's an example Pod that uses values from `game-demo` to configure a Pod:
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```yaml
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apiVersion: v1
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kind: Pod
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metadata:
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name: configmap-demo-pod
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spec:
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containers:
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- name: demo
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image: alpine
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command: ["sleep", "3600"]
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env:
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# Define the environment variable
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- name: PLAYER_INITIAL_LIVES # Notice that the case is different here
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# from the key name in the ConfigMap.
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valueFrom:
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configMapKeyRef:
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name: game-demo # The ConfigMap this value comes from.
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key: player_initial_lives # The key to fetch.
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- name: UI_PROPERTIES_FILE_NAME
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valueFrom:
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configMapKeyRef:
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name: game-demo
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key: ui_properties_file_name
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volumeMounts:
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- name: config
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mountPath: "/config"
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readOnly: true
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volumes:
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# You set volumes at the Pod level, then mount them into containers inside that Pod
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- name: config
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configMap:
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# Provide the name of the ConfigMap you want to mount.
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name: game-demo
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# An array of keys from the ConfigMap to create as files
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items:
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- key: "game.properties"
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path: "game.properties"
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- key: "user-interface.properties"
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path: "user-interface.properties"
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```
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{{< codenew file="configmap/configure-pod.yaml" >}}
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A ConfigMap doesn't differentiate between single line property values and
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multi-line file-like values.
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@ -0,0 +1,39 @@
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apiVersion: v1
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kind: Pod
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metadata:
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name: configmap-demo-pod
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spec:
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containers:
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- name: demo
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image: alpine
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command: ["sleep", "3600"]
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env:
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# Define the environment variable
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- name: PLAYER_INITIAL_LIVES # Notice that the case is different here
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# from the key name in the ConfigMap.
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valueFrom:
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configMapKeyRef:
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name: game-demo # The ConfigMap this value comes from.
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key: player_initial_lives # The key to fetch.
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- name: UI_PROPERTIES_FILE_NAME
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valueFrom:
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configMapKeyRef:
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name: game-demo
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key: ui_properties_file_name
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volumeMounts:
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- name: config
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mountPath: "/config"
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readOnly: true
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volumes:
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# You set volumes at the Pod level, then mount them into containers inside that Pod
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- name: config
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configMap:
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# Provide the name of the ConfigMap you want to mount.
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name: game-demo
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# An array of keys from the ConfigMap to create as files
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items:
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- key: "game.properties"
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path: "game.properties"
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- key: "user-interface.properties"
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path: "user-interface.properties"
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