{"id":33707,"date":"2023-01-26T18:07:29","date_gmt":"2023-09-18T07:01:26","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%a1%ae%e8%ae%a4kubernetesconfigmap%e7%9a%84%e5%88%9b%e5%bb%ba%e5%92%8c%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%80%82\/"},"modified":"2024-01-15T07:57:20","modified_gmt":"2024-01-14T23:57:20","slug":"%e7%a1%ae%e8%ae%a4kubernetesconfigmap%e7%9a%84%e5%88%9b%e5%bb%ba%e5%92%8c%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%a1%ae%e8%ae%a4kubernetesconfigmap%e7%9a%84%e5%88%9b%e5%bb%ba%e5%92%8c%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%80%82\/","title":{"rendered":"\u786e\u8ba4[Kubernetes]ConfigMap\u7684\u521b\u5efa\u548c\u4f7f\u7528\u65b9\u6cd5"},"content":{"rendered":"

\u9996\u5148<\/h1>\n

\u6211\u60f3\u8981\u786e\u8ba4\u4e00\u4e0b\u5982\u4f55\u521b\u5efa\u548c\u4f7f\u7528ConfigMap\u8fd9\u4e00\u6b21\u3002
\nConfigMap\u662f\u7528\u6765\u4fdd\u5b58\u914d\u7f6e\u4fe1\u606f\u7684\u8d44\u6e90\u3002\u4e0eSecret\u7c7b\u4f3c\uff0c\u4f46Secret\u7528\u4e8e\u5904\u7406\u673a\u5bc6\u4fe1\u606f\uff0c\u800cConfigMap\u7528\u4e8e\u5904\u7406\u975e\u673a\u5bc6\u7684\u914d\u7f6e\u4fe1\u606f\u3002<\/p>\n

\u521b\u5efaConfigMap<\/h1>\n

\u53ef\u4ee5\u6309\u7167\u4e0eSecret\u7c7b\u4f3c\u7684\u65b9\u6cd5\u521b\u5efaConfigMap\u3002\u7531\u4e8e\u521b\u5efa\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u6240\u4ee5\u6211\u60f3\u5c1d\u8bd5\u5404\u79cd\u4e0d\u540c\u7684\u65b9\u6cd5\u3002<\/p>\n

–\u6765\u81ea\u6587\u4ef6<\/h2>\n

\u5728Secret\u4e2d\uff0c\u6211\u4eec\u6307\u5b9a\u4e86\u4e00\u4e2aKey\uff08\u6587\u4ef6\uff09\u5bf9\u5e94\u4e00\u4e2aValue\uff0c\u4f46\u5728ConfigMap\u4e2d\uff0c\u4e00\u4e2aKey\uff08\u6587\u4ef6\uff09\u53ef\u4ee5\u5bf9\u5e94\u591a\u4e2aValue\u3002<\/p>\n

maxmemory=2mb\r\nmaxmemory-policy=allkeys-lru\r\n<\/code><\/pre>\n
\u4f7f\u7528\u6b64\u914d\u7f6e\u6587\u4ef6\u521b\u5efaConfigMap\u3002<\/p>\n
$ kubectl create configmap --save-config sample-configmap1 --from-file=.\/redis.conf\r\nconfigmap\/sample-configmap1 created\r\n$ kubectl get configmaps\r\nNAME                DATA   AGE\r\nsample-configmap1   1      11s\r\n$ kubectl describe configmaps sample-configmap1\r\nName:         sample-configmap1\r\nNamespace:    default\r\nLabels:       <none>\r\nAnnotations:  kubectl.kubernetes.io\/last-applied-configuration:\r\n                {\"kind\":\"ConfigMap\",\"apiVersion\":\"v1\",\"metadata\":{\"name\":\"sample-configmap1\",\"creationTimestamp\":null},\"data\":{\"redis.conf\":\"maxmemory=2mb...\r\n\r\nData\r\n====\r\nredis.conf:\r\n----\r\nmaxmemory=2mb\r\nmaxmemory-policy=allkeys-lru\r\n\r\nEvents:  <none\r\n<\/code><\/pre>\n
–\u6765\u81ea\u73af\u5883\u6587\u4ef6<\/h2>\n
\u6b64\u6b21\u5c06\u4f7f\u7528\u76f8\u540c\u7684redis.conf\u4f5c\u4e3aenvfile\u3002<\/p>\n
$ kubectl create configmap sample-configmap2 --from-env-file=redis.conf\r\nconfigmap\/sample-configmap2 created\r\n$ kubectl describe configmaps sample-configmap2\r\nName:         sample-configmap2\r\nNamespace:    default\r\nLabels:       <none>\r\nAnnotations:  <none>\r\n\r\nData\r\n====\r\nmaxmemory:\r\n----\r\n2mb\r\nmaxmemory-policy:\r\n----\r\nallkeys-lru\r\nEvents:  <none>\r\n<\/code><\/pre>\n
\u6211\u4ece\u76f8\u540c\u7684redis.conf\u6587\u4ef6\u521b\u5efa\u4e86\u4e00\u4e2aConfigMap\uff0c\u4f46\u662f\u4f7f\u7528–from-file\u9009\u9879\u65f6\uff0c\u5bf9\u4e8e\u4e00\u4e2aKey\uff08redis.conf\uff09\uff0c\u6709\u4e24\u4e2aValue\uff08maxmemory=2mb, maxmemory-policy=allkeys-lru\uff09\u8fdb\u884c\u8bbe\u7f6e\u3002
\n\u76f8\u6bd4\u4e4b\u4e0b\uff0c\u5f53\u4f7f\u7528–from-env-file\u9009\u9879\u65f6\uff0c\u6bcf\u4e2aKey\uff08maxmemory, maxmemory-policy\uff09\u548cValue\uff082mb, allkeys-lru\uff09\u90fd\u662f\u4e00\u5bf9\u4e00\u5730\u8fdb\u884c\u8bbe\u7f6e\u7684\u3002<\/p>\n
–\u4ece\u6587\u5b57\u4e0a\u770b<\/h2>\n
\u8fd9\u6b21\u6211\u4eec\u5c06\u76f4\u63a5\u6307\u5b9a\u6bcf\u4e2a\u952e\u548c\u503c\u6765\u521b\u5efa\u3002<\/p>\n
$ kubectl create configmap --save-config sample-configmap3 --from-literal=maxmemory=2mb --from-literal=maxmemory-policy=allkeys-lru\r\nconfigmap\/sample-configmap3 created\r\n<\/code><\/pre>\n
$ kubectl describe configmaps sample-configmap3\r\nName:         sample-configmap3\r\nNamespace:    default\r\nLabels:       <none>\r\nAnnotations:  kubectl.kubernetes.io\/last-applied-configuration:\r\n                {\"kind\":\"ConfigMap\",\"apiVersion\":\"v1\",\"metadata\":{\"name\":\"sample-configmap3\",\"creationTimestamp\":null},\"data\":{\"maxmemory\":\"2mb\",\"maxmemor...\r\n\r\nData\r\n====\r\nmaxmemory-policy:\r\n----\r\nallkeys-lru\r\nmaxmemory:\r\n----\r\n2mb\r\nEvents:  <none>\r\n<\/code><\/pre>\n
\u5c3d\u7ba1\u987a\u5e8f\u4e0d\u540c\uff0c\u4f46\u4e0e–from-env-file\u76f8\u4f3c\uff0cKey\u548cValue\u4ecd\u7136\u662f\u4e00\u5bf9\u4e00\u7684\u5173\u7cfb\u3002<\/p>\n
\u6839\u636e\u5ba3\u8a00\u521b\u4f5c<\/h2>\n
\u6700\u540e\u6211\u60f3\u4ece\u5ba3\u8a00\u4e2d\u521b\u4f5c\u4e00\u4e0b\u3002<\/p>\n
apiVersion<\/span>:<\/span> v1<\/span>\r\nkind<\/span>:<\/span> ConfigMap<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> sample-configmap4<\/span>\r\ndata<\/span>:<\/span>\r\n  maxmemory<\/span>:<\/span> 2mb<\/span>\r\n  maxmemory-policy<\/span>:<\/span> allkeys-lru<\/span>\r\n<\/code><\/pre>\n
\u6211\u8981\u5e94\u7528\u8fd9\u4e2a\u5ba3\u8a00\u7a3f\u3002<\/p>\n
$ kubectl apply -f configmap.yaml\r\nconfigmap\/sample-configmap4 created\r\n$kubectl describe configmaps sample-configmap4\r\nName:         sample-configmap4\r\nNamespace:    default\r\nLabels:       <none>\r\nAnnotations:  kubectl.kubernetes.io\/last-applied-configuration:\r\n                {\"apiVersion\":\"v1\",\"data\":{\"maxmemory\":\"2mb\",\"maxmemory-policy\":\"allkeys-lru\"},\"kind\":\"ConfigMap\",\"metadata\":{\"annotations\":{},\"name\":\"sam...\r\n\r\nData\r\n====\r\nmaxmemory:\r\n----\r\n2mb\r\nmaxmemory-policy:\r\n----\r\nallkeys-lru\r\nEvents:  <none>\r\n<\/code><\/pre>\n
\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4e0e –from-env-file \u76f8\u540c\uff0c\u952e\u548c\u503c\u662f\u4e00\u5bf9\u4e00\u7684\u5173\u7cfb\u3002<\/p>\n
ConfigMap\u7684\u4f7f\u7528<\/h1>\n
\u6211\u5011\u5c07\u78ba\u8a8d\u5df2\u5275\u5efa\u7684 ConfigMap \u7684\u4f7f\u7528\u65b9\u6cd5\u3002\u8207 Secret \u4e00\u6a23\uff0cConfigMap \u4e5f\u6709\u5e7e\u7a2e\u4e0d\u540c\u7684\u65b9\u6cd5\uff0c\u6211\u5011\u5c07\u5206\u5225\u9032\u884c\u78ba\u8a8d\u3002<\/p>\n
\u4f7f\u7528\u7279\u5b9a\u7684\u952e\u4f5c\u4e3a\u73af\u5883\u53d8\u91cf\u3002<\/h2>\n
\u7531\u4e8e\u76f8\u540c\u7684redis.conf\u6587\u4ef6\uff0c\u6211\u521b\u5efa\u4e86\u4e24\u4e2a\u4e0d\u540c\u7684ConfigMap\uff0c\u6211\u60f3\u5206\u522b\u8fdb\u884c\u786e\u8ba4\u3002<\/p>\n
\u952e\u548c\u503c\u662f\u4e00\u5bf9\u591a\u3002<\/h3>\n
\u9996\u5148\uff0c\u8fd9\u662f\u4e00\u4e2a\u901a\u8fc7–from-file\u521b\u5efa\u7684ConfigMap\u3002\u8fd9\u4e2aConfigMap\u6709\u4e00\u4e2a\u952e\uff0c\u8bbe\u7f6e\u4e86\u4e24\u4e2a\u503c\u3002<\/p>\n
\u6211\u7f16\u5199\u4e86\u4ee5\u4e0b\u5ba3\u8a00\u4e66\u3002<\/p>\n
apiVersion<\/span>:<\/span> v1<\/span>\r\nkind<\/span>:<\/span> Pod<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> redis1<\/span>\r\nspec<\/span>:<\/span>\r\n  containers<\/span>:<\/span>\r\n  -<\/span> name<\/span>:<\/span> redis1<\/span>\r\n    image<\/span>:<\/span> redis:latest<\/span>\r\n    env<\/span>:<\/span>\r\n      -<\/span> name<\/span>:<\/span> redis_conf<\/span>\r\n        valueFrom<\/span>:<\/span>\r\n          configMapKeyRef<\/span>:<\/span>\r\n            name<\/span>:<\/span> sample-configmap1<\/span>\r\n            key<\/span>:<\/span> redis.conf<\/span>\r\n<\/code><\/pre>\n
\u5e94\u7528\u8fd9\u4e2a\u6e05\u5355\uff0c\u786e\u8ba4\u5df2\u8bbe\u7f6e\u7684\u73af\u5883\u53d8\u91cf\u3002<\/p>\n
$ kubectl apply -f redis1.yaml\r\npod\/redis1 created\r\n$ kubectl exec -it redis1 \/bin\/bash\r\nroot@redis1:\/data# printenv | grep maxmemory\r\nredis_conf=maxmemory=2mb\r\nmaxmemory-policy=allkeys-lru\r\nroot@redis1:\/data# echo $maxmemory\r\n\r\nroot@redis1:\/data# echo $maxmemory-policy\r\n-policy\r\nroot@redis1:\/data# echo $redis_conf\r\nmaxmemory=2mb maxmemory-policy=allkeys-lru\r\n<\/code><\/pre>\n
\u73af\u5883\u53d8\u91cf\u5df2\u8bbe\u7f6e\uff0c\u4f46\u5c1d\u8bd5\u7528echo\u547d\u4ee4\u8fdb\u884c\u786e\u8ba4\u65f6\uff0c\u611f\u89c9\u6709\u70b9\u5947\u602a\u3002\u6211\u5728\u60f3\u5b83\u662f\u5426\u53ef\u7528…<\/p>\n
Key\u548cValue\u662f\u4e00\u5bf9\u4e00\u7684\u5173\u7cfb\u3002<\/h3>\n
\u8fd9\u6b21\u4f7f\u7528\u4e86\u7531from-env-file\u521b\u5efa\u7684ConfigMap\u3002\u8fd9\u4e2aConfigMap\u662f\u4ee5\u4e00\u5bf9\u4e00\u7684\u65b9\u5f0f\u8bbe\u7f6e\u4e86\u952e\u548c\u503c\u3002<\/p>\n
\u6211\u5df2\u7ecf\u521b\u5efa\u4e86\u4ee5\u4e0b\u6e05\u5355\u3002
\n\u6211\u5c06\u5c1d\u8bd5\u8bbe\u7f6e\u4e24\u4e2a\u952e-\u503c\u5bf9\u4e2d\u7684maxmemory\u3002<\/p>\n
apiVersion<\/span>:<\/span> v1<\/span>\r\nkind<\/span>:<\/span> Pod<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> redis2<\/span>\r\nspec<\/span>:<\/span>\r\n  containers<\/span>:<\/span>\r\n  -<\/span> name<\/span>:<\/span> redis2<\/span>\r\n    image<\/span>:<\/span> redis:latest<\/span>\r\n    env<\/span>:<\/span>\r\n      -<\/span> name<\/span>:<\/span> MAX_MEMORY<\/span>\r\n        valueFrom<\/span>:<\/span>\r\n          configMapKeyRef<\/span>:<\/span>\r\n            name<\/span>:<\/span> sample-configmap2<\/span>\r\n            key<\/span>:<\/span> maxmemory<\/span>\r\n<\/code><\/pre>\n
\u5e94\u7528\u6b64\u6e05\u5355\uff0c\u5e76\u786e\u8ba4\u5df2\u8bbe\u7f6e\u7684\u73af\u5883\u53d8\u91cf\u3002<\/p>\n
$ kubectl apply -f redis2.yaml\r\npod\/redis2 created\r\n$ kubectl exec -it redis2 \/bin\/bash\r\nroot@redis2:\/data# printenv | grep MAX\r\nMAX_MEMORY=2mb\r\nroot@redis2:\/data# echo $MAX_MEMORY\r\n2mb\r\n<\/code><\/pre>\n
\u8fd9\u6b21\u8bbe\u7f6e\u6b63\u5982\u6211\u4eec\u9884\u671f\u7684\u90a3\u6837\u3002<\/p>\n
\u4f7f\u7528\u6240\u6709\u7684\u952e\u4f5c\u4e3a\u73af\u5883\u53d8\u91cf<\/h2>\n
\u53ea\u6307\u5b9a ConfigMap\uff0c\u4f7f\u7528\u6240\u6709\u7684 Key\uff0c\u653e\u5728 envFrom \u4e0b\u9762\u3002<\/p>\n
\u5148\u4ece\u952e\u548c\u503c\u4e3a\u4e00\u5bf9\u591a\u7684ConfigMap\u4e2d\u786e\u8ba4\u3002
\n\u5e94\u7528\u4ee5\u4e0b\u6e05\u5355\u5e76\u8fdb\u884c\u786e\u8ba4\u3002<\/p>\n
\u9996\u5148\uff0c\u5c1d\u8bd5\u4ece1\u5bf9n\u7684ConfigMap\u4e2d\u786e\u8ba4\u952e\u548c\u503c\u3002
\n\u5e94\u7528\u4ee5\u4e0b\u6e05\u5355\u5e76\u8fdb\u884c\u786e\u8ba4\u3002<\/p>\n
apiVersion<\/span>:<\/span> v1<\/span>\r\nkind<\/span>:<\/span> Pod<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> redis3<\/span>\r\nspec<\/span>:<\/span>\r\n  containers<\/span>:<\/span>\r\n  -<\/span> name<\/span>:<\/span> redis3<\/span>\r\n    image<\/span>:<\/span> redis:latest<\/span>\r\n    envFrom<\/span>:<\/span>\r\n    -<\/span> configMapRef<\/span>:<\/span>\r\n        name<\/span>:<\/span> sample-configmap1<\/span>\r\n<\/code><\/pre>\n
$ kubectl apply -f redis3.yaml\r\npod\/redis3 created\r\n$ kubectl exec -it redis3 \/bin\/bash\r\n# printenv\r\nredis.conf=maxmemory=2mb\r\nmaxmemory-policy=allkeys-lru\r\n\u30fb\u30fb\u30fb\r\nroot@redis3:\/data# echo $maxmemory\r\n\r\nroot@redis3:\/data# echo $maxmemory-policy\r\n-policy\r\nroot@redis3:\/data# echo $redis.conf\r\n.conf\r\n<\/code><\/pre>\n
\u679c\u7136\u5f88\u5947\u602a\u5462\u3002<\/p>\n
\n
\u63a5\u4e0b\u6765\u6211\u4eec\u4f1a\u9a8c\u8bc1\u952e(Key)\u548c\u503c(Value)\u4e3a\u4e00\u5bf9\u4e00\u7684ConfigMap\u3002
\n\u6267\u884c\u4ee5\u4e0b\u6e05\u5355\u5e76\u8fdb\u884c\u786e\u8ba4\u3002<\/p>\n
apiVersion<\/span>:<\/span> v1<\/span>\r\nkind<\/span>:<\/span> Pod<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> redis4<\/span>\r\nspec<\/span>:<\/span>\r\n  containers<\/span>:<\/span>\r\n  -<\/span> name<\/span>:<\/span> redis4<\/span>\r\n    image<\/span>:<\/span> redis:latest<\/span>\r\n    envFrom<\/span>:<\/span>\r\n    -<\/span> configMapRef<\/span>:<\/span>\r\n        name<\/span>:<\/span> sample-configmap2<\/span>\r\n<\/code><\/pre>\n
$ kubectl apply -f redis4.yaml\r\npod\/redis4 created\r\n$ kubectl exec -it redis4 \/bin\/bash\r\nroot@redis4:\/data# printenv\r\nmaxmemory-policy=allkeys-lru\r\n\u30fb\u30fb\u30fb\r\nHOSTNAME=redis4\r\n\u30fb\u30fb\u30fb\r\nroot@redis4:\/data# echo $maxmemory-policy\r\n2mb-policy\r\nroot@redis4:\/data# echo $maxmemory\r\n2mb\r\n<\/code><\/pre>\n
\u5728\u4f7f\u7528printenv\u547d\u4ee4\u65f6\uff0c\u770b\u8d77\u6765\u8bbe\u7f6e\u6ca1\u95ee\u9898\uff0c\u4f46\u4f7f\u7528echo\u547d\u4ee4\u786e\u8ba4\u540e\uff0cmaxmemory-policy\u7684\u8bbe\u7f6e\u6709\u4e9b\u5947\u602a\u3002
\n\u597d\u50cf\u662f\u7531\u4e8e\u73af\u5883\u53d8\u91cf\u4e2d\u5305\u542b\u4e86\u300c.\u300d\u300c-\u300d\u548c\u6362\u884c\u7b26\uff0c\u5bfc\u81f4\u65e0\u6cd5\u6309\u9884\u671f\u5f15\u7528\u3002<\/p>\n
\u5728\u521b\u5efaConfigMap\u65f6\uff0c\u6700\u597d\u901a\u8fc7\u4ee5\u4e0b\u63d0\u53ca\u7684\u5377\u7684\u65b9\u5f0f\u6765\u4f7f\u7528\uff0c\u4ee5\u907f\u514d\u5305\u542b\u5b83\u4eec\u3002<\/p>\n
\u4ee5\u5377\u7684\u5f62\u5f0f\u6302\u8f7d<\/h2>\n
\u5c31\u50cfSecret\u4e00\u6837\uff0cConfigMap\u4e5f\u53ef\u4ee5\u4f5c\u4e3aVolume\u6302\u8f7d\u3002\u6211\u4eec\u6765\u786e\u8ba4\u4e00\u4e0b\u8fd9\u4e2a\u64cd\u4f5c\u3002<\/p>\n
\u53ea\u6302\u8f7d\u7279\u5b9a\u7684\u952e<\/h3>\n
\u952e\u548c\u503c\u662f\u4e00\u5bf9\u591a\u3002<\/h4>\n
\u6211\u9700\u8981\u786e\u8ba4\u4e00\u4e0bKey\u548cValue\u7684\u5bf9\u5e94\u5173\u7cfb\u662f1\u5bf9n\u7684ConfigMap\u7684\u8fd0\u884c\u60c5\u51b5\u3002<\/p>\n
\u6211\u5011\u5c07\u61c9\u7528\u4ee5\u4e0b\u5ba3\u8a00\u4e26\u9032\u884c\u78ba\u8a8d\u3002\u8acb\u5728mountPath\u4e2d\u6307\u5b9a\u5bb9\u5668\u7684\u639b\u8f09\u8def\u5f91\uff0c\u4e26\u5728path\u4e2d\u6307\u5b9a\u639b\u8f09\u5f8c\u7684\u6587\u4ef6\u540d\u3002<\/p>\n
apiVersion<\/span>:<\/span> v1<\/span>\r\nkind<\/span>:<\/span> Pod<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> redis5<\/span>\r\nspec<\/span>:<\/span>\r\n  containers<\/span>:<\/span>\r\n    -<\/span> name<\/span>:<\/span> redis5<\/span>\r\n      image<\/span>:<\/span> redis:latest<\/span>\r\n      volumeMounts<\/span>:<\/span>\r\n      -<\/span> name<\/span>:<\/span> config-volume<\/span>\r\n        mountPath<\/span>:<\/span> \/etc\/config<\/span>\r\n  volumes<\/span>:<\/span>\r\n    -<\/span> name<\/span>:<\/span> config-volume<\/span>\r\n      configMap<\/span>:<\/span>\r\n        name<\/span>:<\/span> sample-configmap1<\/span>\r\n        items<\/span>:<\/span>\r\n        -<\/span> key<\/span>:<\/span> redis.conf<\/span>\r\n          path<\/span>:<\/span> redis.conf<\/span>\r\n<\/code><\/pre>\n
$ kubectl apply -f redis5.yaml\r\npod\/redis5 created\r\n$ kubectl exec -it redis5 \/bin\/bash\r\nroot@redis5:\/data# cd \/etc\/config\/\r\nroot@redis5:\/etc\/config# ls\r\nredis.conf\r\nroot@redis5:\/etc\/config# cat redis.conf\r\nmaxmemory=2mb\r\nmaxmemory-policy=allkeys-lru\r\n<\/code><\/pre>\n
\u8bbe\u7f6e\u5f97\u5f88\u597d\u554a\u3002<\/p>\n
\u952e\u548c\u503c\u662f\u4e00\u5bf9\u4e00\u7684\u3002<\/h4>\n
\u4e0b\u9762\u6211\u4eec\u5c06\u5c1d\u8bd5\u6302\u8f7d\u4e00\u4e2a\u53ea\u5305\u542b\u7279\u5b9aKey\u7684ConfigMap\uff0c\u5176\u4e2dKey\u548cValue\u662f\u4e00\u5bf9\u4e00\u7684\u5173\u7cfb\u3002
\n\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u53ea\u6302\u8f7dmaxmemory\u8fd9\u4e2aKey\u3002<\/p>\n
apiVersion<\/span>:<\/span> v1<\/span>\r\nkind<\/span>:<\/span> Pod<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> redis6<\/span>\r\nspec<\/span>:<\/span>\r\n  containers<\/span>:<\/span>\r\n    -<\/span> name<\/span>:<\/span> redis6<\/span>\r\n      image<\/span>:<\/span> redis:latest<\/span>\r\n      volumeMounts<\/span>:<\/span>\r\n      -<\/span> name<\/span>:<\/span> config-volume<\/span>\r\n        mountPath<\/span>:<\/span> \/etc\/config<\/span>\r\n  volumes<\/span>:<\/span>\r\n    -<\/span> name<\/span>:<\/span> config-volume<\/span>\r\n      configMap<\/span>:<\/span>\r\n        name<\/span>:<\/span> sample-configmap2<\/span>\r\n        items<\/span>:<\/span>\r\n        -<\/span> key<\/span>:<\/span> maxmemory<\/span>\r\n          path<\/span>:<\/span> redis_maxmemory<\/span>\r\n<\/code><\/pre>\n
\u6211\u4f1a\u5e94\u7528\u8fd9\u4efd\u5ba3\u8a00\u5e76\u8fdb\u884c\u786e\u8ba4\u3002<\/p>\n
$ kubectl apply -f redis6.yaml\r\npod\/redis6 created\r\n$ kubectl exec -it redis6 cat \/etc\/config\/redis_maxmemory\r\n2mb\r\n<\/code><\/pre>\n
\u786e\u5b9e\u8bbe\u5b9a\u4e86\u3002
\n\u4f46\u662f\uff0c\u6211\u5bf9Redis\u5e76\u4e0d\u5f88\u4e86\u89e3\uff0c\u6240\u4ee5\u4e0d\u786e\u5b9a\u8fd9\u4e2a\u8bbe\u5b9a\u662f\u5426\u53ef\u4ee5\u4f5c\u4e3aRedis\u7684\u53c2\u6570\u4f7f\u7528\u3002<\/p>\n
\u5c06\u6240\u6709\u7684\u5bc6\u94a5\u8fde\u63a5<\/h3>\n
\u6211\u60f3\u8981\u901a\u8fc7\u5728Manifest\u6587\u4ef6\u4e2d\u53ea\u6307\u5b9aConfigMap\u5e76\u6302\u8f7d\u6240\u6709Key\u6765\u8fdb\u884c\u9a8c\u8bc1\u3002
\n\u6211\u60f3\u8981\u5206\u522b\u6302\u8f7d1\u5bf9N\u548c1\u5bf91\u7684ConfigMap\u6765\u6d4b\u8bd5\u64cd\u4f5c\u3002<\/p>\n
apiVersion<\/span>:<\/span> v1<\/span>\r\nkind<\/span>:<\/span> Pod<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> redis7<\/span>\r\nspec<\/span>:<\/span>\r\n  containers<\/span>:<\/span>\r\n    -<\/span> name<\/span>:<\/span> redis7<\/span>\r\n      image<\/span>:<\/span> redis:latest<\/span>\r\n      volumeMounts<\/span>:<\/span>\r\n      -<\/span> name<\/span>:<\/span> config-volume1<\/span>\r\n        mountPath<\/span>:<\/span> \/etc\/config1<\/span>\r\n      -<\/span> name<\/span>:<\/span> config-volume2<\/span>\r\n        mountPath<\/span>:<\/span> \/etc\/config2<\/span>\r\n  volumes<\/span>:<\/span>\r\n    -<\/span> name<\/span>:<\/span> config-volume1<\/span>\r\n      configMap<\/span>:<\/span>\r\n        name<\/span>:<\/span> sample-configmap1<\/span>\r\n    -<\/span> name<\/span>:<\/span> config-volume2<\/span>\r\n      configMap<\/span>:<\/span>\r\n        name<\/span>:<\/span> sample-configmap2<\/span>\r\n<\/code><\/pre>\n
\u6211\u5011\u5c07\u61c9\u7528\u9019\u4efd\u5ba3\u8a00\u4e26\u9032\u884c\u78ba\u8a8d\u3002<\/p>\n
$ kubectl apply -f redis7.yaml\r\npod\/redis7 created\r\n$ kubectl exec -it redis7 \/bin\/bash\r\nroot@redis7:\/etc# cd \/etc\/config1\r\nroot@redis7:\/etc\/config1# ls\r\nredis.conf\r\n# cat redis.conf\r\nmaxmemory=2mb\r\nmaxmemory-policy=allkeys-lru\r\n# cd ..\/config2\r\nroot@redis7:\/etc\/config2# ls\r\nmaxmemory  maxmemory-policy\r\nroot@redis7:\/etc\/config2# cat maxmemory\r\n2mb\r\nroot@redis7:\/etc\/config2# cat maxmemory-policy\r\nallkeys-lru\r\n<\/code><\/pre>\n
\u5bf9\u4e8e1\u5bf9n\u7684\u60c5\u51b5\uff0c\u5176\u4e2d\u4e00\u4e2aKey\u5c06\u4f5c\u4e3a\u6587\u4ef6\u540d\uff0c\u5e76\u4e14\u5176\u4e2d\u5305\u542b\u591a\u4e2a\u503c\u3002
\n\u800c\u5bf9\u4e8e1\u5bf91\u7684\u60c5\u51b5\uff0c\u591a\u4e2aKey\u5206\u522b\u6210\u4e3a\u4e00\u4e2a\u6587\u4ef6\uff0c\u5e76\u4e14\u5176\u4e2d\u5305\u542b\u5404\u4e2a\u503c\u3002<\/p>\n
\u603b\u7ed3<\/h1>\n
\u56e0\u4e3a\u548c Secret \u4e00\u6837\u7684\u65b9\u6cd5\uff0c\u6240\u4ee5\u6211\u4ee5\u4e3a\u80fd\u5f88\u8f7b\u677e\u5730\u505a\u5230\uff0c\u4f46\u610f\u5916\u5730\u9677\u5165\u4e86\u56f0\u96be\u3002\u679c\u7136\u8fd8\u662f\u8981\u8bd5\u8fc7\u624d\u80fd\u77e5\u9053\u5f88\u591a\u4e8b\u60c5\u3002<\/p>\n
\u5728\u76f8\u540c\u7684\u914d\u7f6e\u4fe1\u606f\u4e0b\uff0c\u6211\u4eec\u786e\u8ba4\u4e86 ConfigMap \u7684\u6784\u5efa\u548c\u4f7f\u7528\u65b9\u5f0f\u4f1a\u5bfc\u81f4\u5bb9\u5668\u4e2d\u663e\u793a\u4e0d\u540c\u3002\u6839\u636e\u4f7f\u7528\u7684\u5bb9\u5668\u955c\u50cf\u7684\u4e0d\u540c\uff0c\u6211\u4eec\u9700\u8981\u8c03\u6574 ConfigMap \u7684\u6784\u5efa\u548c\u4f7f\u7528\u65b9\u5f0f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u9996\u5148 \u6211\u60f3\u8981\u786e\u8ba4\u4e00\u4e0b\u5982\u4f55\u521b\u5efa\u548c\u4f7f\u7528ConfigMap\u8fd9\u4e00\u6b21\u3002 ConfigMap\u662f\u7528\u6765\u4fdd\u5b58\u914d\u7f6e\u4fe1\u606f\u7684\u8d44\u6e90\u3002\u4e0eS […]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-33707","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n\u786e\u8ba4[Kubernetes]ConfigMap\u7684\u521b\u5efa\u548c\u4f7f\u7528\u65b9\u6cd5 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u786e\u8ba4kubernetesconfigmap\u7684\u521b\u5efa\u548c\u4f7f\u7528\u65b9\u6cd5\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u786e\u8ba4[Kubernetes]ConfigMap\u7684\u521b\u5efa\u548c\u4f7f\u7528\u65b9\u6cd5\" \/>\n<meta property=\"og:description\" content=\"\u9996\u5148 \u6211\u60f3\u8981\u786e\u8ba4\u4e00\u4e0b\u5982\u4f55\u521b\u5efa\u548c\u4f7f\u7528ConfigMap\u8fd9\u4e00\u6b21\u3002 ConfigMap\u662f\u7528\u6765\u4fdd\u5b58\u914d\u7f6e\u4fe1\u606f\u7684\u8d44\u6e90\u3002\u4e0eS […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u786e\u8ba4kubernetesconfigmap\u7684\u521b\u5efa\u548c\u4f7f\u7528\u65b9\u6cd5\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-09-18T07:01:26+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-01-14T23:57:20+00:00\" \/>\n<meta name=\"author\" content=\"\u6587, \u7fd4\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6587, \u7fd4\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%a1%ae%e8%ae%a4kubernetesconfigmap%e7%9a%84%e5%88%9b%e5%bb%ba%e5%92%8c%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%80%82\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%a1%ae%e8%ae%a4kubernetesconfigmap%e7%9a%84%e5%88%9b%e5%bb%ba%e5%92%8c%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%80%82\/\",\"name\":\"\u786e\u8ba4[Kubernetes]ConfigMap\u7684\u521b\u5efa\u548c\u4f7f\u7528\u65b9\u6cd5 - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2023-09-18T07:01:26+00:00\",\"dateModified\":\"2024-01-14T23:57:20+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/64d5cc7727fffbff2f9a2a8da1de3e5c\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%a1%ae%e8%ae%a4kubernetesconfigmap%e7%9a%84%e5%88%9b%e5%bb%ba%e5%92%8c%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%80%82\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%a1%ae%e8%ae%a4kubernetesconfigmap%e7%9a%84%e5%88%9b%e5%bb%ba%e5%92%8c%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%80%82\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%a1%ae%e8%ae%a4kubernetesconfigmap%e7%9a%84%e5%88%9b%e5%bb%ba%e5%92%8c%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%80%82\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/zh\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u786e\u8ba4[Kubernetes]ConfigMap\u7684\u521b\u5efa\u548c\u4f7f\u7528\u65b9\u6cd5\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - Silicon Cloud\",\"description\":\"\",\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/64d5cc7727fffbff2f9a2a8da1de3e5c\",\"name\":\"\u6587, \u7fd4\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/920c3d673e0bccacc98e5e6b7149bb3c22edd8d39cb753e5d7d7e471498118a1?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/920c3d673e0bccacc98e5e6b7149bb3c22edd8d39cb753e5d7d7e471498118a1?s=96&d=mm&r=g\",\"caption\":\"\u6587, \u7fd4\"},\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/author\/wenxiang\/\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%a1%ae%e8%ae%a4kubernetesconfigmap%e7%9a%84%e5%88%9b%e5%bb%ba%e5%92%8c%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%80%82\/#local-main-organization-logo\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Blog - Silicon Cloud\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"\u786e\u8ba4[Kubernetes]ConfigMap\u7684\u521b\u5efa\u548c\u4f7f\u7528\u65b9\u6cd5 - Blog - Silicon Cloud","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/zh\/blog\/\u786e\u8ba4kubernetesconfigmap\u7684\u521b\u5efa\u548c\u4f7f\u7528\u65b9\u6cd5\u3002\/","og_locale":"zh_CN","og_type":"article","og_title":"\u786e\u8ba4[Kubernetes]ConfigMap\u7684\u521b\u5efa\u548c\u4f7f\u7528\u65b9\u6cd5","og_description":"\u9996\u5148 \u6211\u60f3\u8981\u786e\u8ba4\u4e00\u4e0b\u5982\u4f55\u521b\u5efa\u548c\u4f7f\u7528ConfigMap\u8fd9\u4e00\u6b21\u3002 ConfigMap\u662f\u7528\u6765\u4fdd\u5b58\u914d\u7f6e\u4fe1\u606f\u7684\u8d44\u6e90\u3002\u4e0eS […]","og_url":"https:\/\/www.silicloud.com\/zh\/blog\/\u786e\u8ba4kubernetesconfigmap\u7684\u521b\u5efa\u548c\u4f7f\u7528\u65b9\u6cd5\u3002\/","og_site_name":"Blog - Silicon Cloud","article_published_time":"2023-09-18T07:01:26+00:00","article_modified_time":"2024-01-14T23:57:20+00:00","author":"\u6587, \u7fd4","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"\u6587, \u7fd4","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"4 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%a1%ae%e8%ae%a4kubernetesconfigmap%e7%9a%84%e5%88%9b%e5%bb%ba%e5%92%8c%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%80%82\/","url":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%a1%ae%e8%ae%a4kubernetesconfigmap%e7%9a%84%e5%88%9b%e5%bb%ba%e5%92%8c%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%80%82\/","name":"\u786e\u8ba4[Kubernetes]ConfigMap\u7684\u521b\u5efa\u548c\u4f7f\u7528\u65b9\u6cd5 - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website"},"datePublished":"2023-09-18T07:01:26+00:00","dateModified":"2024-01-14T23:57:20+00:00","author":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/64d5cc7727fffbff2f9a2a8da1de3e5c"},"breadcrumb":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%a1%ae%e8%ae%a4kubernetesconfigmap%e7%9a%84%e5%88%9b%e5%bb%ba%e5%92%8c%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%80%82\/#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/zh\/blog\/%e7%a1%ae%e8%ae%a4kubernetesconfigmap%e7%9a%84%e5%88%9b%e5%bb%ba%e5%92%8c%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%80%82\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%a1%ae%e8%ae%a4kubernetesconfigmap%e7%9a%84%e5%88%9b%e5%bb%ba%e5%92%8c%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%80%82\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.silicloud.com\/zh\/blog\/"},{"@type":"ListItem","position":2,"name":"\u786e\u8ba4[Kubernetes]ConfigMap\u7684\u521b\u5efa\u548c\u4f7f\u7528\u65b9\u6cd5"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website","url":"https:\/\/www.silicloud.com\/zh\/blog\/","name":"Blog - Silicon Cloud","description":"","inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/64d5cc7727fffbff2f9a2a8da1de3e5c","name":"\u6587, \u7fd4","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/920c3d673e0bccacc98e5e6b7149bb3c22edd8d39cb753e5d7d7e471498118a1?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/920c3d673e0bccacc98e5e6b7149bb3c22edd8d39cb753e5d7d7e471498118a1?s=96&d=mm&r=g","caption":"\u6587, \u7fd4"},"url":"https:\/\/www.silicloud.com\/zh\/blog\/author\/wenxiang\/"},{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%a1%ae%e8%ae%a4kubernetesconfigmap%e7%9a%84%e5%88%9b%e5%bb%ba%e5%92%8c%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%80%82\/#local-main-organization-logo","url":"","contentUrl":"","caption":"Blog - Silicon Cloud"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/33707","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/comments?post=33707"}],"version-history":[{"count":2,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/33707\/revisions"}],"predecessor-version":[{"id":57568,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/33707\/revisions\/57568"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/media?parent=33707"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/categories?post=33707"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/tags?post=33707"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}