{"id":1018,"date":"2021-07-29T20:19:39","date_gmt":"2021-07-29T12:19:39","guid":{"rendered":"https:\/\/egonlin.com\/?p=1018"},"modified":"2021-07-30T12:11:57","modified_gmt":"2021-07-30T04:11:57","slug":"%e5%ba%94%e7%94%a8%e5%ae%b9%e5%99%a8%e4%b8%8epod%e8%b5%84%e6%ba%90","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=1018","title":{"rendered":"\u5e94\u7528\u5bb9\u5668\u4e0epod\u8d44\u6e90"},"content":{"rendered":"

\u4e00\u3001Pod<\/h2>\n
    K8s\u6709\u5f88\u591a\u6280\u672f\u6982\u5ff5\uff0c\u540c\u65f6\u5bf9\u5e94\u5f88\u591aAPI\u5bf9\u8c61\uff0c\u6700\u91cd\u8981\u7684\u4e5f\u662f\u6700\u57fa\u7840\u7684\u662f\u5fae\u670d\u52a1Pod\u3002Pod\u662f\u5728K8s\u96c6\u7fa4\u4e2d\u8fd0\u884c\u90e8\u7f72\u5e94\u7528\u6216\u670d\u52a1\u7684\u6700\u5c0f\u5355\u5143\uff0c\u5b83\u662f\u53ef\u4ee5\u652f\u6301\u591a\u5bb9\u5668\u7684\u3002Pod\u7684\u8bbe\u8ba1\u7406\u5ff5\u662f\u652f\u6301\u591a\u4e2a\u5bb9\u5668\u5728\u4e00\u4e2aPod\u4e2d\u5171\u4eab\u7f51\u7edc\u5730\u5740\u548c\u6587\u4ef6\u7cfb\u7edf\uff0c\u53ef\u4ee5\u901a\u8fc7\u8fdb\u7a0b\u95f4\u901a\u4fe1\u548c\u6587\u4ef6\u5171\u4eab\u8fd9\u79cd\u7b80\u5355\u9ad8\u6548\u7684\u65b9\u5f0f\u7ec4\u5408\u5b8c\u6210\u670d\u52a1\u3002Pod\u5bf9\u591a\u5bb9\u5668\u7684\u652f\u6301\u662fK8s\u6700\u57fa\u7840\u7684\u8bbe\u8ba1\u7406\u5ff5\u3002\u6bd4\u5982\u4f60\u8fd0\u884c\u4e00\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u53d1\u884c\u7248\u7684\u8f6f\u4ef6\u4ed3\u5e93\uff0c\u4e00\u4e2aNginx\u5bb9\u5668\u7528\u6765\u53d1\u5e03\u8f6f\u4ef6\uff0c\u53e6\u4e00\u4e2a\u5bb9\u5668\u4e13\u95e8\u7528\u6765\u4ece\u6e90\u4ed3\u5e93\u505a\u540c\u6b65\uff0c\u8fd9\u4e24\u4e2a\u5bb9\u5668\u7684\u955c\u50cf\u4e0d\u592a\u53ef\u80fd\u662f\u4e00\u4e2a\u56e2\u961f\u5f00\u53d1\u7684\uff0c\u4f46\u662f\u4ed6\u4eec\u4e00\u5757\u513f\u5de5\u4f5c\u624d\u80fd\u63d0\u4f9b\u4e00\u4e2a\u5fae\u670d\u52a1\uff1b\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4e0d\u540c\u7684\u56e2\u961f\u5404\u81ea\u5f00\u53d1\u6784\u5efa\u81ea\u5df1\u7684\u5bb9\u5668\u955c\u50cf\uff0c\u5728\u90e8\u7f72\u7684\u65f6\u5019\u7ec4\u5408\u6210\u4e00\u4e2a\u5fae\u670d\u52a1\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\u3002\u8fd9\u5c31\u662fK8S\u4e2d\u7684POD\u3002\n\n    Pod\u662fK8s\u96c6\u7fa4\u4e2d\u6240\u6709\u4e1a\u52a1\u7c7b\u578b\u7684\u57fa\u7840\uff0c\u53ef\u4ee5\u770b\u4f5c\u8fd0\u884c\u5728K8s\u96c6\u7fa4\u4e2d\u7684\u5c0f\u673a\u5668\u4eba\uff0c\u4e0d\u540c\u7c7b\u578b\u7684\u4e1a\u52a1\u5c31\u9700\u8981\u4e0d\u540c\u7c7b\u578b\u7684\u5c0f\u673a\u5668\u4eba\u53bb\u6267\u884c\u3002\u76ee\u524dK8s\u4e2d\u7684\u4e1a\u52a1\u4e3b\u8981\u53ef\u4ee5\u5206\u4e3a\u957f\u671f\u4f3a\u670d\u578b\uff08long-running\uff09\u3001\u6279\u5904\u7406\u578b\uff08batch\uff09\u3001\u8282\u70b9\u540e\u53f0\u652f\u6491\u578b\uff08node-daemon\uff09\u548c\u6709\u72b6\u6001\u5e94\u7528\u578b\uff08statefulapplication\uff09\uff1b\u5206\u522b\u5bf9\u5e94\u7684\u5c0f\u673a\u5668\u4eba\u63a7\u5236\u5668\u4e3aDeployment\u3001Job\u3001DaemonSet\u548cStatefulSet\u3002<\/code><\/pre>\n
1\u3001pod\u521d\u4f53\u9a8c<\/h3>\n
1\uff09\u4e66\u5199\u4e00\u4e2a\u7b80\u5355\u7684\u8d44\u6e90\u6e05\u5355yaml<\/h4>\n
[root@k8s-m-01 ~\/k8s_yaml]# vim test.yaml\napiVersion: v1\nkind: Pod\nmetadata:\n  name: test-pod\n  labels:\n    app: test-pod\nspec:\n  containers:\n    - name: nginx\n      image: nginx\n    - name: tommcat\n      image: tomcat<\/code><\/pre>\n
2\uff09\u6267\u884c<\/h4>\n
[root@k8s-m-01 ~\/k8s_yaml]# kubectl apply -f test.yaml\npod\/test-pod created\n[root@k8s-m-01 ~\/k8s_yaml]# kubectl get pods\nNAME       READY   STATUS              RESTARTS   AGE\ntest-pod   0\/2     ContainerCreating   0          16s\n\n[root@k8s-m-01 ~\/k8s_yaml]# kubectl get pods\nNAME       READY   STATUS    RESTARTS   AGE\ntest-pod   2\/2     Running   0          5m46s<\/code><\/pre>\n
2\u3001Pod\u5e26\u6765\u7684\u597d\u5904<\/h3>\n
1\u3001Pod\u505a\u4e3a\u4e00\u4e2a\u53ef\u4ee5\u72ec\u7acb\u8fd0\u884c\u7684\u670d\u52a1\u5355\u5143\uff0c\u7b80\u5316\u4e86\u5e94\u7528\u90e8\u7f72\u7684\u96be\u5ea6\uff0c\u4ee5\u66f4\u9ad8\u7684\u62bd\u8c61\u5c42\u6b21\u4e3a\u5e94\u7528\u90e8\u7f72\u63d0\u4f9b\u4e86\u6781\u5927\u7684\u65b9\u4fbf\n2\u3001Pod\u505a\u4e3a\u6700\u60f3\u7684\u5e94\u7528\u5b9e\u4f8b\u53ef\u4ee5\u72ec\u7acb\u8fd0\u884c\uff0c\u56e0\u6b64\u53ef\u4ee5\u65b9\u4fbf\u7684\u8fdb\u884c\u90e8\u7f72\uff0c\u6c34\u5e73\u6269\u5c55\u548c\u6536\u7f29\u3001\u65b9\u4fbf\u8fdb\u884c\u8c03\u5ea6\u7ba1\u7406\u4e0e\u8d44\u6e90\u5206\u914d\n3\u3001Pod\u4e2d\u7684\u5bb9\u5668\u5171\u4eab\u76f8\u540c\u7684\u6570\u636e\u548c\u7f51\u7edc\u5730\u5740\u7a7a\u95f4\uff0cPod\u4e4b\u95f4\u4e5f\u8fdb\u884c\u4e86\u7edf\u4e00\u7684\u8d44\u6e90\u7ba1\u7406\u4e0e\u5206\u914d<\/code><\/pre>\n
3\u3001Pod\u662f\u5982\u4f55\u7ba1\u7406\u591a\u4e2a\u5bb9\u5668\u7684<\/h3>\n
    Pod\u4e2d\u53ef\u4ee5\u540c\u65f6\u8fd0\u884c\u591a\u4e2a\u8fdb\u7a0b\uff08\u4f5c\u4e3a\u5bb9\u5668\u8fd0\u884c\uff09\u534f\u540c\u5de5\u4f5c\u3002\u540c\u4e00\u4e2aPod\u4e2d\u7684\u5bb9\u5668\u4f1a\u81ea\u52a8\u7684\u5206\u914d\u5230\u540c\u4e00\u4e2anode\u4e0a\u3002\u540c\u4e00\u4e2aPod\u4e2d\u7684\u5bb9\u5668\u5171\u4eab\u8d44\u6e90\u3001\u7f51\u7edc\u73af\u5883\u548c\u4f9d\u8d56\uff0c\u6240\u4ee5\u5b83\u4eec\u603b\u662f\u88ab\u540c\u65f6\u8c03\u5ea6\u3002\u5728\u4e00\u4e2aPod\u4e2d\u540c\u65f6\u8fd0\u884c\u591a\u4e2a\u5bb9\u5668\u662f\u4e00\u79cd\u6bd4\u8f83\u9ad8\u7ea7\u7684\u7528\u6cd5\u3002\u53ea\u6709\u5f53\u4f60\u7684\u5bb9\u5668\u9700\u8981\u7d27\u5bc6\u914d\u5408\u534f\u4f5c\u7684\u65f6\u5019\u624d\u8003\u8651\u7528\u8fd9\u79cd\u6a21\u5f0f\u3002<\/code><\/pre>\n
4\u3001Pod\u4e2d\u7684\u6570\u636e\u6301\u4e45\u6027<\/h3>\n
Pod\u5728\u8bbe\u8ba1\u652f\u6301\u5c31\u4e0d\u662f\u4f5c\u4e3a\u6301\u4e45\u5316\u5b9e\u4f53\u7684\u3002\u5728\u8c03\u5ea6\u5931\u8d25\u3001\u8282\u70b9\u6545\u969c\u3001\u7f3a\u5c11\u8d44\u6e90\u6216\u8005\u8282\u70b9\u7ef4\u62a4\u7684\u72b6\u6001\u4e0b\u90fd\u4f1a\u6b7b\u6389\u4f1a\u88ab\u9a71\u9010\u3002\u901a\u5e38\uff0c\u6211\u4eec\u662f\u9700\u8981\u501f\u52a9\u7c7b\u4f3c\u4e8eDocker\u5b58\u50a8\u5377\u8fd9\u6837\u7684\u8d44\u6e90\u6765\u505aPod\u7684\u6570\u636e\u6301\u4e45\u5316\u7684\u3002<\/code><\/pre>\n
5\u3001Pod\u7684\u751f\u547d\u5468\u671f<\/h3>\n
\"\"<\/div><\/p>\n
1\uff09pod\u7684\u72b6\u6001<\/h4>\n
\u7b2c\u4e00\u9636\u6bb5<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n
\u72b6\u6001<\/th>\n\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n
Pending\uff08\u6302\u8d77\uff09<\/td>\nAPI Server \u521b\u5efa\u4e86pod\u8d44\u6e90\u5bf9\u8c61\u4e2d\uff0c\u6b63\u5728\u521b\u5efaPod\u4f46\u662fPod\u4e2d\u7684\u5bb9\u5668\u8fd8\u6ca1\u6709\u5168\u90e8\u88ab\u521b\u5efa\u5b8c\u6210\uff0c\u5904\u4e8e\u6b64\u72b6\u6001\u7684Pod\u5e94\u8be5\u68c0\u67e5Pod\u4f9d\u8d56\u7684\u5b58\u50a8\u662f\u5426\u6709\u6743\u9650\u6302\u8f7d\u3001\u955c\u50cf\u662f\u5426\u53ef\u4ee5\u4e0b\u8f7d\u3001\u8c03\u5ea6\u662f\u5426\u6b63\u5e38\u7b49<\/td>\n<\/tr>\n
Failed\uff08\u5931\u8d25\uff09<\/td>\nPod\u4e2d\u7684\u6240\u6709\u5bb9\u5668\u90fd\u5df2\u7ec8\u6b62\u4e86\uff0c\u4e14\u81f3\u5c11\u6709\u4e00\u4e2a\u5bb9\u5668\u662f\u56e0\u4e3a\u5931\u8d25\u7ec8\u6b62\u3002\u5373\u5bb9\u5668\u4ee5\u975e0\u72b6\u6001\u9000\u51fa\u6216\u8005\u88ab\u7cfb\u7edf\u7981\u6b62\u3002<\/td>\n<\/tr>\n
Unknow\uff08\u672a\u77e5\uff09<\/td>\nApiServer\u65e0\u6cd5\u6b63\u5e38\u83b7\u53d6\u5230Pod\u5bf9\u8c61\u7684\u72b6\u6001\u4fe1\u606f\uff0c\u901a\u5e38\u662f\u7531\u4e8e\u65e0\u6cd5\u4e0e\u6240\u5728\u5de5\u4f5c\u8282\u70b9\u7684kubelet\u901a\u4fe1\u6240\u81f4\u3002<\/td>\n<\/tr>\n
Succeeded\uff08\u6210\u529f\uff09<\/td>\nPod\u4e2d\u7684\u6240\u6709\u5bb9\u5668\u90fd\u5df2\u7ecf\u6210\u529f\u7ec8\u6b62\u5e76\u4e14\u4e0d\u4f1a\u88ab\u91cd\u542f\uff0cpod\u91cc\u6240\u6709\u7684containers\uff08\u5bb9\u5668\uff09\u5747\u5df2terminated\uff08\u7ed3\u675f\uff09\u3002<\/td>\n<\/tr>\n
ImgPullERR<\/td>\n\u955c\u50cf\u62c9\u53d6\u5931\u8d25<\/td>\n<\/tr>\n
ContainerCreating<\/td>\n\u5bb9\u5668\u521b\u5efa\u4e2d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u7b2c\u4e8c\u9636\u6bb5<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n
\u72b6\u6001<\/th>\n\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n
Unschedulable\uff08\u8ba1\u5212\u5916\u7684\uff09<\/td>\nPod\u4e0d\u80fd\u88ab\u8c03\u5ea6\uff0ckube-scheduler\u6ca1\u6709\u5339\u914d\u5230\u5408\u9002\u7684node\u8282\u70b9<\/td>\n<\/tr>\n
PodScheduled\uff08pod\u8c03\u5ea6\u4e2d\uff09<\/td>\npod\u6b63\u5904\u4e8e\u8c03\u5ea6\u4e2d\uff0c\u5728kube-scheduler\u521a\u5f00\u59cb\u8c03\u5ea6\u7684\u65f6\u5019\uff0c\u8fd8\u6ca1\u6709\u5c06pod\u5206\u914d\u5230\u6307\u5b9a\u7684pid\uff0c\u5728\u7b5b\u9009\u51fa\u5408\u9002\u7684\u8282\u70b9\u540e\u5c31\u4f1a\u66f4\u65b0etcd\u6570\u636e\uff0c\u5c06pod\u5206\u914d\u5230\u6307\u5b9a\u7684pod<\/td>\n<\/tr>\n
Initialized\uff08\u5df2\u521d\u59cb\u5316\uff09<\/td>\n\u6240\u6709pod\u4e2d\u7684\u521d\u59cb\u5316\u5bb9\u5668\u5df2\u7ecf\u5b8c\u6210\u4e86<\/td>\n<\/tr>\n
ImagePullBackOff<\/td>\nPod\u6240\u5728\u7684node\u8282\u70b9\u4e0b\u8f7d\u955c\u50cf\u5931\u8d25<\/td>\n<\/tr>\n
Running\uff08\u8fd0\u884c\u4e2d\uff09<\/td>\nPod\u5185\u90e8\u7684\u5bb9\u5668\u5df2\u7ecf\u88ab\u521b\u5efa\u5e76\u4e14\u542f\u52a8\u3002<\/td>\n<\/tr>\n
Ready\uff08\u51c6\u5907\u597d\u4e86\uff09<\/td>\n\u8868\u793apod\u4e2d\u7684\u5bb9\u5668\u5df2\u7ecf\u53ef\u4ee5\u63d0\u4f9b\u8bbf\u95ee\u670d\u52a1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
2\uff09pod\u751f\u547d\u5468\u671f\u7684\u8fd0\u884c\u6b65\u9aa4<\/h4>\n
\"\"<\/div><\/p>\n
\u2460\u8fc7\u7a0b\u63cf\u8ff0<\/h5>\n
1\u3001\u542f\u52a8\u5305\u62ec\u521d\u59cb\u5316\u5bb9\u5668\u7684\u4efb\u4f55\u5bb9\u5668\u4e4b\u524d\u5148\u521b\u5efapause\u57fa\u7840\u5bb9\u5668\uff0c\u5b83\u521d\u59cb\u5316Pod\u73af\u5883\u5e76\u4e3a\u540e\u7eed\u52a0\u5165\u7684\u5bb9\u5668\u63d0\u4f9b\u5171\u4eab\u7684\u540d\u79f0\u7a7a\u95f4\u3002\n2\u3001\u6309\u987a\u5e8f\u4ee5\u4e32\u884c\u7684\u65b9\u5f0f\u8fd0\u884c\u7528\u6237\u5b9a\u4e49\u7684\u5404\u4e2a\u521d\u59cb\u5316\u5bb9\u5668\u8fdb\u884cPod\u73af\u5883\u521d\u59cb\u5316\uff1b\u4efb\u4f55\u4e00\u4e2a\u521d\u59cb\u5316\u5bb9\u5668\u8fd0\u884c\u5931\u8d25\u90fd\u5c06\u5bfc\u81f4Pod\u521b\u5efa\u5931\u8d25\uff0c\u5e76\u6309\u5176restartPolicy\u7684\u7b56\u7565\u8fdb\u884c\u5904\u7406\uff0c\u9ed8\u8ba4\u4e3a\u91cd\u542f\u3002\n3\u3001\u7b49\u5f85\u6240\u6709\u5bb9\u5668\u521d\u59cb\u5316\u6210\u529f\u5b8c\u6210\u540e\uff0c\u542f\u52a8\u4e1a\u52a1\u5bb9\u5668\uff0c\u591a\u5bb9\u5668Pod\u73af\u5883\u4e2d\uff0c\u6b64\u6b65\u9aa4\u4f1a\u5e76\u884c\u542f\u52a8\u6240\u6709\u4e1a\u52a1\u5bb9\u5668\u3002\u4ed6\u4eec\u5404\u81ea\u6309\u5176\u81ea\u5b9a\u4e49\u5c55\u5f00\u5176\u751f\u547d\u5468\u671f\uff1b\u5bb9\u5668\u542f\u52a8\u7684\u90a3\u4e00\u523b\u4f1a\u540c\u65f6\u8fd0\u884c\u4e1a\u52a1\u5bb9\u5668\u4e0a\u5b9a\u4e49\u7684PostStart\u94a9\u5b50\u4e8b\u4ef6\uff0c\u8be5\u6b65\u9aa4\u5931\u8d25\u5c06\u5bfc\u81f4\u76f8\u5173\u5bb9\u5668\u88ab\u91cd\u542f\u3002\n4\u3001\u8fd0\u884c\u5bb9\u5668\u542f\u52a8\u5065\u5eb7\u72b6\u6001\u76d1\u6d4b\uff08startupProbe\uff09\uff0c\u5224\u65ad\u5bb9\u5668\u662f\u5426\u542f\u52a8\u6210\u529f\uff1b\u8be5\u6b65\u9aa4\u5931\u8d25\uff0c\u540c\u6837\u53c2\u7167restartPolicy\u5b9a\u4e49\u7684\u7b56\u7565\u8fdb\u884c\u5904\u7406\uff1b\u672a\u5b9a\u4e49\u65f6\uff0c\u9ed8\u8ba4\u72b6\u6001\u4e3aSuccess\u3002\n5\u3001\u5bb9\u5668\u542f\u52a8\u6210\u529f\u540e\uff0c\u5b9a\u671f\u8fdb\u884c\u5b58\u6d3b\u72b6\u6001\u76d1\u6d4b\uff08liveness\uff09\u548c\u5c31\u7eea\u72b6\u6001\u76d1\u6d4b\uff08readiness\uff09\uff1b\u5b58\u6d3b\u76d1\u6d4b\u72b6\u6001\u5931\u8d25\u5c06\u5bfc\u81f4\u5bb9\u5668\u91cd\u542f\uff0c\u800c\u5c31\u7eea\u72b6\u6001\u76d1\u6d4b\u5931\u8d25\u4f1a\u662f\u7684\u8be5\u5bb9\u5668\u4ece\u5176\u6240\u5c5e\u7684Service\u5bf9\u8c61\u7684\u53ef\u7528\u7aef\u70b9\u5217\u8868\u4e2d\u79fb\u9664\u3002\n6\u3001\u7ec8\u6b62Pod\u5bf9\u8c61\u65f6\uff0c\u4f1a\u60f3\u8fd0\u884cpreStop\u94a9\u5b50\u4e8b\u4ef6\uff0c\u5e76\u5728\u5bbd\u9650\u671f\uff08termiunationGracePeriodSeconds\uff09\u7ed3\u675f\u540e\u7ec8\u6b62\u4e3b\u5bb9\u5668\uff0c\u5bbd\u9650\u671f\u9ed8\u8ba4\u4e3a30\u79d2\u3002\n\n#\u7b80\u8ff0\n1\u3001\u521b\u5efapod\uff0c\u5e76\u8c03\u5ea6\u5230\u5408\u9002\u8282\u70b9\n2\u3001\u521b\u5efapause\u57fa\u7840\u5bb9\u5668\uff0c\u63d0\u4f9b\u5171\u4eab\u540d\u79f0\u7a7a\u95f4\n3\u3001\u4e32\u884c\u4e1a\u52a1\u5bb9\u5668\u5bb9\u5668\u521d\u59cb\u5316\n4\u3001\u542f\u52a8\u4e1a\u52a1\u5bb9\u5668\uff0c\u542f\u52a8\u90a3\u4e00\u523b\u4f1a\u540c\u65f6\u8fd0\u884c\u4e3b\u5bb9\u5668\u4e0a\u5b9a\u4e49\u7684Poststart\u94a9\u5b50\u4e8b\u4ef6\n5\u3001\u5065\u5eb7\u72b6\u6001\u76d1\u6d4b\uff0c\u5224\u65ad\u5bb9\u5668\u662f\u5426\u542f\u52a8\u6210\u529f\n6\u3001\u6301\u7eed\u5b58\u6d3b\u72b6\u6001\u76d1\u6d4b\u3001\u5c31\u7eea\u72b6\u6001\u76d1\u6d4b\n7\u3001\u7ed3\u675f\u65f6\uff0c\u6267\u884cprestop\u94a9\u5b50\u4e8b\u4ef6\n8\u3001\u7ec8\u6b62\u5bb9\u5668<\/code><\/pre>\n
3)RestartPolicy\u91cd\u542f\u7b56\u7565<\/h4>\n
    Pod \u91cd\u542f\u7b56\u7565\uff08 RestartPolicy \uff09\u5e94\u7528\u4e8e Pod \u5185\u7684\u6240\u6709\u5bb9\u5668\uff0c\u4e95\u4e14\u4ec5\u5728 Pod \u6240\u5904\u7684 Node \u4e0a\u7531 kubelet\u8fdb\u884c\u5224\u65ad\u548c\u91cd\u542f\u64cd\u4f5c\u3002\u5f53\u67d0\u4e2a\u5bb9\u5668\u5f02\u5e38\u9000\u51fa\u6216\u8005\u5065\u5eb7\u68c0\u67e5\u5931\u8d25\u65f6\uff0c kubelet \u5c06\u6839\u636e RestartPolicy \u8bbe\u7f6e\u6765\u8fdb\u884c\u76f8\u5e94\u7684\u64cd\u4f5c\u3002Pod \u7684\u91cd\u542f\u7b56\u7565\u5305\u62ec\uff1aAlways\u3001OnFailure \u548c Never\uff0c\u9ed8\u8ba4\u503c\u4e3a Always<\/code><\/pre>\n
\n
Always\uff1a\u5f53\u5bb9\u5668\u5931\u6548\u65f6\uff0c\u7531kubelet\u81ea\u52a8\u542f\u52a8\u8be5\u5bb9\u5668<\/p>\n
OnFailure\uff1a\u5f53\u5bb9\u5668\u7ec8\u6b62\u8fd0\u884c\u4e14\u9000\u51fa\u4ee3\u7801\u4e0d\u4e3a0\u65f6\uff0c\u6709kubelet\u81ea\u52a8\u91cd\u542f\u8be5\u5bb9\u5668<\/p>\n
Never\uff1a\u4e0d\u8bba\u5bb9\u5668\u8fd0\u884c\u72b6\u6001\u5982\u4f55\uff0ckubelet\u90fd\u4e0d\u4f1a\u91cd\u542f\u8be5\u5bb9\u5668<\/p>\n<\/blockquote>\n
    kubelet\u91cd\u542f\u5931\u6548\u5bb9\u5668\u7684\u65f6\u95f4\u95f4\u9694\u4ee5sync-frequency\u4e58\u4ee52n\u6765\u8ba1\u7b97\uff1b\u4f8b\u59821\u30012\u30014\u30018\u500d\u7b49\uff0c\u6700\u957f\u5ef6\u65f65min\uff0c\u5e76\u4e14\u5728\u6210\u529f\u91cd\u542f\u540e\u768410min\u540e\u91cd\u7f6e\u8be5\u65f6\u95f4\u3002\n    Pod\u7684\u91cd\u542f\u7b56\u7565\u4e0e\u63a7\u5236\u65b9\u5f0f\u606f\u606f\u76f8\u5173\uff0c\u5f53\u524d\u53ef\u7528\u4e8e\u7ba1\u7406Pod\u7684\u63a7\u5236\u5668\u5305\u62ecReplicationController\u3001Job\u3001DaemonSet\u53ca\u76f4\u63a5\u901a\u8fc7kubelet\u7ba1\u7406\uff08\u9759\u6001Pod\uff09\u3002\u6bcf\u79cd\u63a7\u5236\u5668\u5bf9Pod\u7684\u91cd\u542f\u7b56\u7565\u8981\u6c42\u5982\u4e0b\uff1a<\/code><\/pre>\n
\n
1\uff0eRC\u548cDaemonSet\uff1a\u5fc5\u987b\u8bbe\u7f6e\u4e3aAlways\uff0c\u9700\u8981\u4fdd\u8bc1\u8be5\u5bb9\u5668\u6301\u7eed\u8fd0\u884c<\/p>\n
2\uff0eJob\u548cCronJob\uff1aOnFailure\u6216Never\uff0c\u786e\u4fdd\u5bb9\u5668\u6267\u884c\u5b8c\u6210\u540e\u4e0d\u518d\u91cd\u542f\u3002<\/p>\n
3\uff0ekubelet\uff1a\u5728Pod\u5931\u6548\u65f6\u81ea\u52a8\u91cd\u542f\u5b83\uff0c\u4e0d\u8bba\u5c06RestartPolicy\u8bbe\u7f6e\u4e3a\u4ec0\u4e48\u503c\uff0c\u4e5f\u4e0d\u4f1a\u5bf9Pod\u8fdb\u884c\u5065\u5eb7\u68c0\u67e5<\/p>\n<\/blockquote>\n
4)\u94a9\u5b50PostStart<\/strong>\u3001PreStop<\/strong><\/h4>\n
    PostStart :\u5728\u5bb9\u5668\u521b\u5efa\u540e\u7acb\u5373\u6267\u884c\u3002\u4f46\u662f\uff0c\u5e76\u4e0d\u80fd\u4fdd\u8bc1\u94a9\u5b50\u5c06\u5728\u5bb9\u5668ENTRYPOINT\u4e4b\u524d\u8fd0\u884c\uff0c\u56e0\u4e3a\u6ca1\u6709\u53c2\u6570\u4f20\u9012\u7ed9\u5904\u7406\u7a0b\u5e8f\u3002 \u4e3b\u8981\u7528\u4e8e\u8d44\u6e90\u90e8\u7f72\u3001\u73af\u5883\u51c6\u5907\u7b49\u3002\u4e0d\u8fc7\u9700\u8981\u6ce8\u610f\u7684\u662f\u5982\u679c\u94a9\u5b50\u82b1\u8d39\u65f6\u95f4\u8fc7\u957f\u4ee5\u53ca\u4e8e\u4e0d\u80fd\u8fd0\u884c\u6216\u8005\u6302\u8d77\uff0c\u5bb9\u5668\u5c06\u4e0d\u80fd\u8fbe\u5230Running\u72b6\u6001\u3002\n    \u5bb9\u5668\u542f\u52a8\u540e\u6267\u884c\uff0c\u6ce8\u610f\u7531\u4e8e\u662f\u5f02\u6b65\u6267\u884c\uff0c\u5b83\u65e0\u6cd5\u4fdd\u8bc1\u4e00\u5b9a\u5728ENTRYPOINT\u4e4b\u540e\u8fd0\u884c\u3002\u5982\u679c\u5931\u8d25\uff0c\u5bb9\u5668\u4f1a\u88ab\u6740\u6b7b\uff0c\u5e76\u6839\u636eRestartPolicy\u51b3\u5b9a\u662f\u5426\u91cd\u542f\n\n    PreStop :\u5728\u5bb9\u5668\u7ec8\u6b62\u524d\u7acb\u5373\u88ab\u8c03\u7528\u3002\u5b83\u662f\u963b\u585e\u7684\uff0c\u610f\u5473\u7740\u5b83\u662f\u540c\u6b65\u7684\uff0c\u6240\u4ee5\u5b83\u5fc5\u987b\u5728\u5220\u9664\u5bb9\u5668\u7684\u8c03\u7528\u51fa\u53d1\u4e4b\u524d\u5b8c\u6210\u3002\u4e3b\u8981\u7528\u4e8e\u4f18\u96c5\u5173\u95ed\u5e94\u7528\u7a0b\u5e8f\u3001\u901a\u77e5\u5176\u4ed6\u7cfb\u7edf\u7b49\u3002\u5982\u679c\u94a9\u5b50\u5728\u6267\u884c\u671f\u95f4\u6302\u8d77\uff0cPod\u9636\u6bb5\u5c06\u505c\u7559\u5728Running\u72b6\u6001\u5e76\u4e14\u4e0d\u4f1a\u8fbe\u5230failed\u72b6\u6001\n    \u5bb9\u5668\u505c\u6b62\u524d\u6267\u884c\uff0c\u5e38\u7528\u4e8e\u8d44\u6e90\u6e05\u7406\u3002\u5982\u679c\u5931\u8d25\uff0c\u5bb9\u5668\u540c\u6837\u4e5f\u4f1a\u88ab\u6740\u6b7b<\/code><\/pre>\n
5)Pod\u7684\u8d44\u6e90\u6e05\u5355\u8be6\u89e3<\/h4>\n
<\/p>
<\/div>
\u67e5\u770b\u66f4\u591a<\/h2>
\u8054\u7cfb\u7ba1\u7406\u5458\u5fae\u4fe1tutu19192010\uff0c\u6ce8\u518c\u8d26\u53f7<\/p>\n<\/div>
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Register<\/a><\/div>
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<\/div>","protected":false},"excerpt":{"rendered":"
\u4e00\u3001Pod K8s\u6709\u5f88\u591a\u6280\u672f\u6982\u5ff5\uff0c\u540c\u65f6\u5bf9\u5e94\u5f88\u591aAPI\u5bf9\u8c61\uff0c\u6700\u91cd\u8981\u7684\u4e5f\u662f\u6700\u57fa\u7840\u7684\u662f\u5fae\u670d\u52a1Pod\u3002Pod\u662f\u5728K8s […]<\/p>\n","protected":false},"author":3,"featured_media":1019,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[124],"tags":[21,133,134,135,19,22,132,20],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/1018"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1018"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/1018\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/media\/1019"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1018"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1018"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1018"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}