{"id":12027,"date":"2023-08-25T21:45:08","date_gmt":"2023-08-25T13:45:08","guid":{"rendered":"http:\/\/92it.top\/?p=12027"},"modified":"2023-08-25T21:45:55","modified_gmt":"2023-08-25T13:45:55","slug":"k8s%e6%b7%b1%e5%85%a5%e5%ad%a6%e4%b9%a0-secret-configmap","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=12027","title":{"rendered":"K8S\u6df1\u5165\u5b66\u4e60 Secret & Configmap"},"content":{"rendered":"\n

\u4e00\u3001Secret<\/strong><\/p>\n\n\n\n

\n\n\n\n

1.1 \u5173\u4e8eSecret<\/strong><\/p>\n\n\n\n

\u5728\u5e94\u7528\u542f\u52a8\u8fc7\u7a0b\u4e2d\u9700\u8981\u4e00\u4e9b\u654f\u611f\u4fe1\u606f\uff0c\u6bd4\u5982\u6570\u636e\u5e93\u7528\u6237\u540d\u3001\u5bc6\u7801\uff0c\u5982\u679c\u76f4\u63a5\u660e\u6587\u5b58\u50a8\u5728\u5bb9\u5668\u955c\u50cf\u4e2d\u662f\u4e0d\u5b89\u5168\u7684\uff0cK8S\u63d0\u4f9b\u7684\u65b9\u6848\u662fSecret<\/strong>\u3002<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

Secret \u4f1a\u4ee5\u5bc6\u6587<\/strong>\u7684\u65b9\u5f0f\u5b58\u50a8\u6570\u636e\uff0c\u907f\u514d\u4e86\u76f4\u63a5\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u4fdd\u5b58\u654f\u611f\u4fe1\u606f\u3002<\/p>\n\n\n\n

Secret \u4f1a\u4ee5 Volume<\/strong> \u7684\u5f62\u5f0f\u88ab mount \u5230 Pod\uff0c\u5bb9\u5668\u53ef\u901a\u8fc7\u6587\u4ef6\u7684\u65b9\u5f0f\u4f7f\u7528 Secret \u4e2d\u7684\u654f\u611f\u6570\u636e\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u73af\u5883\u53d8\u91cf\u7684\u65b9\u5f0f\u4f7f\u7528\u3002<\/p>\n\n\n\n

1.2 \u521b\u5efa\u4e0e\u67e5\u770bSecret<\/strong><\/p>\n\n\n\n

\u8fd9\u91cc\u5047\u8bbe\u6211\u4eec\u8981\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u4ee5\u4e0b\u4fe1\u606f\u7684Secret\uff1a<\/p>\n\n\n\n

\uff081\uff09\u7528\u6237\u540d\uff1aEdison\n\uff082\uff09\u5bc6\u7801\uff1aEDC123456*<\/pre>\n\n\n\n
\u67094\u79cd\u65b9\u6cd5\u6765\u521b\u5efaSecret\uff1a<\/p>\n\n\n\n
  • \uff081\uff09\u901a\u8fc7 –from-literal\uff1a<\/li><\/ul>\n\n\n\n
    kubectl create secret generic mysecret --from-literal=username=Edison --from-literal=password=EDC123456*<\/pre>\n\n\n\n
    PS\uff1a<\/strong>\u6bcf\u4e2a --from-literal<\/code> \u5bf9\u5e94\u4e00\u4e2a\u4fe1\u606f\u6761\u76ee<\/p>\n\n\n\n
    • \uff082\uff09\u901a\u8fc7 –from-file\uff1a<\/li><\/ul>\n\n\n\n
      echo -n Edison > .\/username\necho -n EDC123456* > .\/password\nkubectl create secret generic mysecret --from-file=.\/username --from-file=.\/password<\/pre>\n\n\n\n
      PS\uff1a<\/strong>\u6bcf\u4e2a\u6587\u4ef6\u5185\u5bb9\u5bf9\u5e94\u4e00\u4e2a\u4fe1\u606f\u6761\u76ee<\/p>\n\n\n\n
      • \uff083\uff09\u901a\u8fc7 –from-env-file\uff1a<\/li><\/ul>\n\n\n\n
        cat << EOF > env.txt\nusername=Edison\npassword=EDC123456*\nEOF\nkubectl create secret generic mysecret --from-env-file=env.txt<\/pre>\n\n\n\n
        PS\uff1a<\/strong>\u6587\u4ef6 env.txt<\/code> \u4e2d\u6bcf\u884c Key=Value \u5bf9\u5e94\u4e00\u4e2a\u4fe1\u606f\u6761\u76ee<\/p>\n\n\n\n
        • \uff084\uff09\u901a\u8fc7YAML\u914d\u7f6e\u6587\u4ef6\u521b\u5efa\uff1a\uff08\u63a8\u8350\u65b9\u5f0f<\/strong>\uff09<\/li><\/ul>\n\n\n\n
          \u7531\u4e8e\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684\u654f\u611f\u6570\u636e\u5fc5\u987b\u662f\u901a\u8fc7base64\u7f16\u7801<\/strong>\u540e\u7684\u7ed3\u679c\uff0c\u56e0\u6b64\u9700\u8981\u83b7\u53d6base64\u7f16\u7801<\/strong>\u540e\u7684\u503c\uff1a<\/p>\n\n\n\n
          \"\"<\/figure><\/div>\n\n\n\n
          \u4e0b\u9762\u5c31\u662f\u8fd9\u4e2aYAML\u6587\u4ef6\u7684\u5185\u5bb9\uff1a<\/p>\n\n\n\n
          apiVersion: v1\nkind: Secret\nmetadata:\n  name: edc-secret\ndata:\n  username: RWRpc29u\n  password: RURDMTIzNDU2Kg==<\/pre>\n\n\n\n
          \u901a\u8fc7kubectl apply\u6765\u521b\u5efaSecret\uff1a<\/p>\n\n\n\n
          \"\"<\/figure><\/div>\n\n\n\n
          \u521b\u5efa\u6210\u529f\u540e\uff0c\u9a8c\u8bc1\u4e00\u4e0b\uff0c\u67e5\u770b\u4e00\u4e0b\u8fd9\u4e2aSecret\uff1a<\/p>\n\n\n\n
          kubectl get secret edc-secret \u3000\u3000\u3000\u3000 \/\/ \u67e5\u770b\u5b58\u5728\u7684secret\nkubectl describe secret edc-secret\u3000\u3000\/\/ \u67e5\u770b\u6761\u76ee\u7684Key\nkubectl edit secret edc-secret\u3000\u3000\u3000\u3000 \/\/ \u67e5\u770b\u6761\u76ee\u7684Value<\/pre>\n\n\n\n
          \"\"<\/figure><\/div>\n\n\n\n
          \u5c06Value\u8fdb\u884cbase64\u53cd\u7f16\u7801\uff0c\u5982\u4e0b\u6240\u793a\uff0c\u4e0e\u9884\u671f\u4e00\u81f4\uff1a<\/p>\n\n\n\n
          \"\"<\/figure><\/div>\n\n\n\n
          1.3 \u5728Pod\u4e2d\u4f7f\u7528Secret<\/strong><\/p>\n\n\n\n
          K8S\u4e2dPod\u4e2d\u4f7f\u7528Secret\u6709\u4e24\u79cd\u65b9\u5f0f\uff0c\u4e00\u662fVolume\u65b9\u5f0f\uff0c\u4e8c\u662f\u73af\u5883\u53d8\u91cf\u7684\u65b9\u5f0f\u3002<\/p>\n\n\n\n
          \uff081\uff09Volume\u65b9\u5f0f<\/p>\n\n\n\n
          \u8fd9\u91cc\u6211\u4eec\u4ee5\u4e00\u4e2a\u793a\u4f8b\u6f14\u793a\u4e00\u4e0b\u5982\u4f55\u901a\u8fc7Volume\u65b9\u5f0f\u4f7f\u7528Secret\uff0c\u9996\u5148\u5b9a\u4e49\u4e00\u4e2aPod\uff1a<\/p>\n\n\n\n
          apiVersion: v1\nkind: Pod\nmetadata:\n  name: secret-demo\nspec:\n  containers:\n  - name: secret-demo-pod\n    image: busybox\n    args:\n    - \/bin\/sh\n    - -c\n    - sleep 10; touch \/tmp\/healthy; sleep 30000\n    volumeMounts:\n    - name: foo\n      mountPath: \"\/etc\/foo\"\n      readOnly: true\n  volumes:\n  - name: foo\n    secret:\n      secretName: edc-secret<\/pre>\n\n\n\n
          \u8be5Pod\u4e2d\u4f1a\u4f7f\u7528\u5230\u521a\u521a\u5b9a\u4e49\u7684secret\uff08edc-secret\uff09\uff0c\u7136\u540evolumeMounts\u5b9a\u4e49\u4e86\u5c06foo mount\u5230\u5bb9\u5668\u4e2d\u7684\u8def\u5f84\u4e3a\/etc\/foo\u7684\u76ee\u5f55\u4e0b\uff0c\u5e76\u4e14\u6307\u5b9a\u4e86\u8bfb\u5199\u6743\u9650\u4e3a\u53ea\u8bfb\u3002<\/p>\n\n\n\n
          \u901a\u8fc7kubectl apply\u521b\u5efa\u4e4b\u540e\uff0c\u6211\u4eec\u8bd5\u7740\u5728\u5bb9\u5668\u4e2d\u8bfb\u53d6secret\u6765\u9a8c\u8bc1\u4e00\u4e0b\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n
          \"\"<\/figure><\/div>\n\n\n\n
          \u53ef\u4ee5\u770b\u5230\uff0cK8S\u4e3a\u6bcf\u6761\u654f\u611f\u6570\u636e\u521b\u5efa\u4e86\u4e00\u4e2a\u6587\u4ef6\uff0c\u800c\u4e14\u5176Value\u662f\u4ee5\u660e\u6587\u5b58\u653e\u7684\u3002<\/p>\n\n\n\n
          \u5f53\u7136\uff0c\u4f60\u4e5f\u53ef\u4ee5\u81ea\u5b9a\u4e49\u5b58\u653e\u6570\u636e\u7684\u76ee\u5f55\uff0c\u5982\u4e0b\u914d\u7f6e\u6240\u793a\uff1a<\/p>\n\n\n\n
          apiVersion: v1\nkind: Pod\nmetadata:\n  name: secret-demo\nspec:\n  containers:\n  - name: secret-demo-pod\n    image: busybox\n    args:\n    - \/bin\/sh\n    - -c\n    - sleep 10; touch \/tmp\/healthy; sleep 30000\n    volumeMounts:\n    - name: foo\n      mountPath: \"\/etc\/foo\"\n      readOnly: true\n  volumes:\n  - name: foo\n    secret:\n      secretName: edc-secret\n      items:\n      - key: username\n        path: \/edc-group\/username\n      - key: password\n        path: \/edc-group\/password<\/pre>\n\n\n\n
          \u8fd9\u65f6\uff0c\u8be5secret\u5c31\u4f1a\u5b58\u653e\u4e8e\/etc\/foo\/edc-group\/username \u548c \/etc\/foo\/edc-group\/password \u4e24\u4e2a\u76ee\u5f55\u4e0b\u4e86\u3002<\/p>\n\n\n\n
          \uff082\uff09\u52a8\u6001\u66f4\u65b0<\/p>\n\n\n\n
          \u4ee5Volume\u65b9\u5f0f\u4f7f\u7528Secret\uff0c\u5176\u4e2d\u4e00\u4e2a\u4f18\u70b9\u5c31\u662f\u652f\u6301\u52a8\u6001\u66f4\u65b0<\/strong>\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u5c06Secret\u66f4\u65b0\u4e00\u4e0b\uff0c\u91cd\u65b0\u5e94\u7528\u5230K8S\u4e2d\uff1a<\/p>\n\n\n\n
          apiVersion: v1\nkind: Secret\nmetadata:\n  name: edc-secret\ndata:\n  username: RWRpc29u\n  password: YWJjZGVmZyo=    \/\/ \u6362\u4e3a\u4e86 abcdefg*<\/pre>\n\n\n\n
          \u901a\u8fc7kubectl apply\u91cd\u65b0\u5e94\u7528\u4e4b\u540e\uff0c\u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4\u540e\uff0c\u518d\u6b21\u8fdb\u5165\u5bb9\u5668\u4e2d\u9a8c\u8bc1\uff1a<\/p>\n\n\n\n
          \"\"<\/figure><\/div>\n\n\n\n
          \u5df2\u7ecf\u6539\u4e3a\u4e86 abcdefg*\uff0c\u7b26\u5408\u9884\u671f\u3002<\/p>\n\n\n\n
          \uff082\uff09\u73af\u5883\u53d8\u91cf\u65b9\u5f0f<\/p>\n\n\n\n
          \u901a\u8fc7Volume\u4f7f\u7528Secret\u770b\u8d77\u6765\u7a0d\u5fae\u9ebb\u70e6\u4e86\u4e00\u70b9\uff0c\u5bb9\u5668\u5fc5\u987b\u901a\u8fc7\u6587\u4ef6\u8bfb\u53d6\u6570\u636e\u3002K8S\u63d0\u4f9b\u4e86\u53e6\u5916\u4e00\u79cd\u65b9\u5f0f\uff0c\u90a3\u5c31\u662f\u73af\u5883\u53d8\u91cf\u65b9\u5f0f\u3002<\/p>\n\n\n\n
          \u4e0b\u9762\u4ecd\u4ee5\u4e0a\u9762\u7684\u4f8b\u5b50\u4e3a\u4f8b\uff0c\u4fee\u6539\u914d\u7f6e\u6587\u4ef6\uff1a<\/p>\n\n\n\n
          apiVersion: v1\nkind: Pod\nmetadata:\n  name: secret-demo\nspec:\n  containers:\n  - name: secret-demo-pod\n    image: busybox\n    args:\n    - \/bin\/sh\n    - -c\n    - sleep 10; touch \/tmp\/healthy; sleep 30000\n    env:\n      - name: EDC_SECRET_USERNAME\n        valueFrom:\n          secretKeyRef:\n            name: edc-secret\n            key: username\n      - name: EDC_SECRET_PASSWORD\n        valueFrom:\n          secretKeyRef:\n            name: edc-secret\n            key: password<\/pre>\n\n\n\n
          \u901a\u8fc7kubectl apply\u5e94\u7528\u4e4b\u540e\uff0c\u8fdb\u5165\u5bb9\u5668\u9a8c\u8bc1\u4e00\u4e0b\uff1a<\/p>\n\n\n\n
          \"\"<\/figure><\/div>\n\n\n\n
          \u53ef\u4ee5\u770b\u5230\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u901a\u8fc7\u73af\u5883\u53d8\u91cf\u83b7\u53d6\u5230Value\u3002<\/p>\n\n\n\n
          PS\uff1a\u9700\u8981\u6ce8\u610f\u7684\u4e5f\u662f\uff0c\u867d\u7136\u901a\u8fc7\u73af\u5883\u53d8\u91cf\u8bfb\u53d6Secret\u6bd4\u8f83\u65b9\u4fbf\uff0c\u4f46\u662f\u65e0\u6cd5\u652f\u6301Secret\u52a8\u6001\u66f4\u65b0\uff01 \n<\/pre>\n\n\n\n
          \u4e8c\u3001Configmap<\/strong><\/p>\n\n\n\n
          \n\n\n\n
          2.1 \u5173\u4e8eConfigmap<\/strong><\/p>\n\n\n\n
          \u4e0a\u9762\u63d0\u5230\u7684Secret\u53ef\u4ee5\u4e3aPod\u63d0\u4f9b\u673a\u5bc6\u6570\u636e\u7684\u5b58\u50a8\uff0c\u800c\u5bf9\u4e8e\u4e00\u4e9b\u975e\u673a\u5bc6\u654f\u611f\u7684\u6570\u636e\uff0c\u50cf\u4e00\u4e9b\u5e94\u7528\u7684\u914d\u7f6e\u4fe1\u606f\u554a\u795e\u9a6c\u7684\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528Configmap\u3002<\/p>\n\n\n\n
          Configmap\u7684\u521b\u5efa\u4e0e\u4f7f\u7528\u65b9\u5f0f\u4e0eSecret\u975e\u5e38\u7c7b\u4f3c\uff0c\u4e0d\u540c\u70b9\u53ea\u5728\u4e8e\u6570\u636e\u4ee5\u660e\u6587\u5f62\u5f0f\u5b58\u653e\uff08\u4e0d\u8fc7\uff0c\u6211\u89c9\u5f97Secret\u7684\u5bc6\u6587\u5f62\u5f0f\u4e5f\u5e76\u4e0d\u5bc6\u6587\uff0c\u53ea\u80fd\u7b97\u5f97\u4e0a\u662f\u7b80\u5355\u7f16\u7801<\/strong>\uff09\u3002<\/p>\n\n\n\n
          \"\"<\/figure><\/div>\n\n\n\n
          2.2 \u521b\u5efaConfigmap<\/strong><\/p>\n\n\n\n
          \u548cSecret\u4e00\u6837\uff0c\u53ef\u4ee5\u901a\u8fc7 –from-literal\uff0c–from-file \u548c –from-env-file\u6765\u521b\u5efa\uff0c\u8fd9\u91cc\u6211\u4eec\u8df3\u8fc7\uff0c\u76f4\u63a5\u8bf4\u4e0b\u6211\u4eec\u6700\u5e38\u7528\u7684yaml\u914d\u7f6e\u6587\u4ef6\u7684\u65b9\u5f0f\u3002<\/p>\n\n\n\n
          apiVersion: v1\nkind: ConfigMap\nmetadata:\n  name: service-configmap\ndata:\n  LogLevel: Error\n  LogFile: service-timestamp.log\n  AllowedHosts: edc.com<\/pre>\n\n\n\n
          2.3 \u4f7f\u7528Configmap<\/strong><\/p>\n\n\n\n
          \u548cSecret\u4e00\u6837\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7Volume \u6216 \u73af\u5883\u53d8\u91cf\u4e24\u79cd\u65b9\u5f0f\u6765\u4f7f\u7528Configmap\u3002<\/p>\n\n\n\n
          \uff081\uff09Volume\u65b9\u5f0f<\/p>\n\n\n\n
          apiVersion: v1\nkind: Pod\nmetadata:\n  name: configmap-demo\nspec:\n  containers:\n  - name: configmap-demo-pod\n    image: busybox\n    args:\n    - \/bin\/sh\n    - -c\n    - sleep 10; touch \/tmp\/healthy; sleep 30000\n    volumeMounts:\n    - name: foo\n      mountPath: \"\/etc\/foo\"\n      readOnly: true\n  volumes:\n  - name: foo\n    configMap:\n      name: service-configmap<\/pre>\n\n\n\n
          \uff082\uff09\u73af\u5883\u53d8\u91cf\u65b9\u5f0f<\/p>\n\n\n\n
          apiVersion: v1\nkind: Pod\nmetadata:\n  name: secret-demo\nspec:\n  containers:\n  - name: secret-demo-pod\n    image: busybox\n    args:\n    - \/bin\/sh\n    - -c\n    - sleep 10; touch \/tmp\/healthy; sleep 30000\n    env:\n      - name: SERVICE_LOG_LEVEL\n        valueFrom:\n          configMapKeyRef:\n            name: service-configmap\n            key: LogLevel\n      - name: SERVICE_LOG_FILE\n        valueFrom:\n          configMapKeyRef:\n            name: service-configmap\n            key: LogFile\n      - name: SERVICE_ALLOWED_HOSTS\n        valueFrom:\n          configMapKeyRef:\n            name: service-configmap\n            key: AllowedHosts<\/pre>\n\n\n\n
          2.4 \u6700\u4f73\u5b9e\u8df5<\/strong><\/p>\n\n\n\n
          \u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u5927\u5bb6\u5efa\u8bae\u7684\u6700\u4f73\u5b9e\u8df5\u662f\uff1a<\/p>\n\n\n\n
          \uff081\uff09\u521b\u5efaConfigMap\u91c7\u7528YAML\u914d\u7f6e\u65b9\u5f0f => \u4fbf\u4e8e\u590d\u7528\u548c\u7248\u672c\u7ba1\u7406<\/p>\n\n\n\n
          \uff082\uff09\u8bfb\u53d6ConfigMap\u91c7\u7528Volume\u65b9\u5f0f => \u4fbf\u4e8e\u914d\u7f6e\u52a8\u6001\u66f4\u65b0<\/p>\n\n\n\n
          \u4e0b\u9762\u6211\u4eec\u521b\u5efa\u4e00\u4e2aConfigmap\uff0c\u5176YAML\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n\n\n\n
          apiVersion: v1\nkind: ConfigMap\nmetadata:\n  name: service-configmap\ndata:\n  appsettings.json: |\n    LogHandler: NLogHandler\n    LogLevel: Error\n    LogFile: %hostname-%timestamp.log<\/pre>\n\n\n\n
          \u8fd9\u91cc\u6ce8\u610f\u522b\u5fd8\u4e86\uff1a\u540e\u9762\u7684 | \u7b26\u53f7\uff0c\u7136\u540e\u521b\u5efa&\u67e5\u770bConfigmap\uff1a<\/p>\n\n\n\n
          \"\"<\/figure><\/div>\n\n\n\n
          \u5982\u679c\u60f3\u8981\u5728Pod\u4e2d\u4f7f\u7528\u6b64Configmap\uff0c\u53ef\u4ee5\u5728YAML\u914d\u7f6e\u5982\u4e0b\uff1a<\/p>\n\n\n\n
          apiVersion: v1\nkind: Pod\nmetadata:\n  name: configmap-demo\nspec:\n  containers:\n  - name: configmap-demo-pod\n    image: busybox\n    args:\n    - \/bin\/sh\n    - -c\n    - sleep 10; touch \/tmp\/healthy; sleep 30000\n    volumeMounts:\n    - name: configmap\n      mountPath: \"\/etc\/configmap\"\n  volumes:\n  - name: configmap\n    configMap:\n      name: service-configmap\n      items:\n        - key: appsettings.json\n          path: appsettings.json<\/pre>\n\n\n\n
          \u8fd9\u91cc\u5c06Volume mount\u5230\u4e86\u5bb9\u5668\u7684 \/etc\/configmap \u76ee\u5f55\u4e2d\uff0c\u4e0b\u9762\u6211\u4eec\u9a8c\u8bc1\u4e00\u4e0b\uff1a<\/p>\n\n\n\n
          \"\"<\/figure><\/div>\n\n\n\n
          \u8fd9\u65f6\u6211\u4eec\u5c06configmap\u66f4\u65b0\u4e00\u4e0b\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n
          apiVersion: v1\nkind: ConfigMap\nmetadata:\n  name: service-configmap\ndata:\n  appsettings.json: |\n    Logging:\n      LogLevel:\n        Default: \"Error\"\n    AllowedHosts: \"*\"<\/pre>\n\n\n\n
          \u901a\u8fc7kubectl apply\u66f4\u65b0\u4e00\u4e0bconfigmap\uff0c\u7136\u540e\u518d\u5230pod\u4e2d\u9a8c\u8bc1\u662f\u5426\u52a8\u6001\u66f4\u65b0\uff1a<\/p>\n\n\n\n
          \"\"<\/figure><\/div>\n\n\n\n
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          \u4e09\u3001\u5c0f\u7ed3<\/strong><\/p>\n\n\n\n
          \n\n\n\n
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          \u8f6c\u8f7d\uff1ahttps:\/\/www.cnblogs.com\/edisonchou\/p\/aspnet_core_on_k8s_deepstudy_part9.html<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
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