"K8s env configMapKeyRef.optional"의 두 판 사이의 차이

2022년 1월 3일 (월) 20:26 기준 최신판

1 개요[ | ]

k8s configMapKeyRef.optional
k8s env configMapKeyRef.optional

a.yaml

apiVersion: v1
kind: Pod
metadata:
  name: dapi-test-pod
spec:
  containers:
  - name: test-container
    image: nginx
    env:
    - name: SPECIAL_LEVEL_KEY
      valueFrom:
        configMapKeyRef:
          name: special-config
          key: SPECIAL_LEVEL
    - name: SPECIAL_TYPE_KEY
      valueFrom:
        configMapKeyRef:
          name: special-config
          key: SPECIAL_TYPE
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: special-config
  namespace: default
data:
  SPECIAL_LEVEL: very
  #SPECIAL_TYPE: charm

$ kubectl apply -f a.yaml
pod/dapi-test-pod created
configmap/special-config created
$ kubectl get pod dapi-test-pod
NAME            READY   STATUS                       RESTARTS   AGE
dapi-test-pod   0/1     CreateContainerConfigError   0          11s

a.yaml

apiVersion: v1
kind: Pod
metadata:
  name: dapi-test-pod
spec:
  containers:
  - name: test-container
    image: nginx
    env:
    - name: SPECIAL_LEVEL_KEY
      valueFrom:
        configMapKeyRef:
          name: special-config
          key: SPECIAL_LEVEL
    - name: SPECIAL_TYPE_KEY
      valueFrom:
        configMapKeyRef:
          name: special-config
          key: SPECIAL_TYPE
          optional: true
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: special-config
  namespace: default
data:
  SPECIAL_LEVEL: very
  #SPECIAL_TYPE: charm

$ kubectl delete -f a.yaml; kubectl apply -f a.yaml
pod "dapi-test-pod" deleted
configmap "special-config" deleted
pod/dapi-test-pod created
configmap/special-config created
$ kubectl get pod dapi-test-pod
NAME            READY   STATUS    RESTARTS   AGE
dapi-test-pod   1/1     Running   0          46s
$ kubectl exec dapi-test-pod -- env | grep SPECIAL
SPECIAL_LEVEL_KEY=very

2 같이 보기[ | ]

@@ 1번째 줄: / 1번째 줄: @@
 ==개요==
+{{소문자}}
 ;k8s configMapKeyRef.optional
+;k8s env configMapKeyRef.optional
 {{소스헤더|a.yaml}}
-<syntaxhighlight lang='yaml'>
+<syntaxhighlight lang='yaml' line>
 apiVersion: v1
 kind: Pod
@@ 11번째 줄: / 13번째 줄: @@
    containers:
    - name: test-container
-     image: k8s.gcr.io/busybox
+     image: nginx
-    command: [ "/bin/sh", "-c", "env" ]
      env:
      - name: SPECIAL_LEVEL_KEY
@@ 40번째 줄: / 41번째 줄: @@
 $ kubectl get pod dapi-test-pod
 NAME            READY   STATUS                       RESTARTS   AGE
-dapi-test-pod   0/1     CreateContainerConfigError   0          97s
+dapi-test-pod   0/1     CreateContainerConfigError   0          11s
+</syntaxhighlight>
+{{소스헤더|a.yaml}}
+<syntaxhighlight lang='yaml' line highlight='20'>
+apiVersion: v1
+kind: Pod
+metadata:
+  name: dapi-test-pod
+spec:
+  containers:
+  - name: test-container
+    image: nginx
+    env:
+    - name: SPECIAL_LEVEL_KEY
+      valueFrom:
+        configMapKeyRef:
+          name: special-config
+          key: SPECIAL_LEVEL
+    - name: SPECIAL_TYPE_KEY
+      valueFrom:
+        configMapKeyRef:
+          name: special-config
+          key: SPECIAL_TYPE
+          optional: true
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: special-config
+  namespace: default
+data:
+  SPECIAL_LEVEL: very
+  #SPECIAL_TYPE: charm
+</syntaxhighlight>
+<syntaxhighlight lang='console'>
+$ kubectl delete -f a.yaml; kubectl apply -f a.yaml
+pod "dapi-test-pod" deleted
+configmap "special-config" deleted
+pod/dapi-test-pod created
+configmap/special-config created
+$ kubectl get pod dapi-test-pod
+NAME            READY   STATUS    RESTARTS   AGE
+dapi-test-pod   1/1     Running   0          46s
+$ kubectl exec dapi-test-pod -- env | grep SPECIAL
+SPECIAL_LEVEL_KEY=very
 </syntaxhighlight>
 ==같이 보기==
+* [[k8s env]]
 * [[k8s optional]]
+* [[k8s configMapKeyRef]]
 * [[CreateContainerConfigError]]
 [[분류: k8s]]