{"id":5631,"date":"2022-04-26T12:55:30","date_gmt":"2022-04-26T04:55:30","guid":{"rendered":"http:\/\/123.57.164.21\/?p=5631"},"modified":"2022-05-10T11:31:36","modified_gmt":"2022-05-10T03:31:36","slug":"openshift-deploymentconfig%e5%92%8cdeployment","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=5631","title":{"rendered":"Openshift DeploymentConfig\u548cDeployment"},"content":{"rendered":"\n

Openshift\u7684Deployment Configurations\u548cKubernetes \u7684Deployment\u7684\u533a\u522b\u4e0e\u8054\u7cfb<\/strong><\/p>\n\n\n\n

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\u6211\u4eec\u5728\u8fdb\u884cOpenshift\u5b66\u4e60\u7684\u8fc7\u7a0b\u4e2d\uff0c\u7ecf\u5e38\u4f1a\u88ab\u4e00\u4e2a\u95ee\u9898\u6df7\u6dc6\u56f0\u6270\uff0c\u5c31\u662fOpenshift\u63d0\u4f9b\u4e86\u4e00\u4e2a\u53ebDeployment Config\u7684\u5bf9\u8c61\uff0c\u90a3\u5b83\u4e0eKubernetes\u5b9a\u4e49\u7684\u5bf9\u8c61 Deployment\u6709\u4ec0\u4e48\u533a\u522b\uff0c\u4e3a\u4ec0\u4e48\u6709\u4e86Deployment\u4e86\uff0c\u6211\u4eec\u8fd8\u9700\u8981Deployment Config\u8fd9\u4e2a\u5bf9\u8c61\u5462\uff1f<\/p>\n\n\n\n

Kubernetes \u7684Deployment \u662f\u4e00\u4e2a\u91cd\u8981\u7684\u5bf9\u8c61\uff0c\u662fKubernetes v1.2\u540e\u5f15\u5165\u7684\u6982\u5ff5\uff0c\u6211\u4eec\u53ef\u4ee5\u7b80\u5355\u7406\u89e3\u4e3a\u6211\u4eec\u53ef\u4ee5\u5728Deployment \u4e2d\u5b9a\u4e49\u5e94\u7528\u90e8\u7f72\uff0c\u4ee5\u53ca\u5e94\u7528\u90e8\u7f72\u540e\u6b63\u5e38\u5e94\u8be5\u5904\u4e8e\u7684\u76ee\u6807\u72b6\u6001\uff0c\u5982\u5728Deployment \u7684\u914d\u7f6eyaml\u6587\u4ef6\u91cc\u5b9a\u4e49\u8981\u90e8\u7f72\u5e94\u7528\u5bf9\u5e94\u7684\u5bb9\u5668\u955c\u50cfImage\uff0c\u5728spec.replicas\u4e0a\u5b9a\u4e49\u5bf9\u5e94\u7684\u8fd0\u884cPod\u6570\uff0c\u7b49\u7b49\u3002\u6211\u4eec\u53ea\u9700\u8981\u5728 Deployment \u4e2d\u63cf\u8ff0\u60f3\u8981\u7684\u76ee\u6807\u72b6\u6001\u662f\u4ec0\u4e48\uff0cDeployment controller \u5c31\u4f1a\u5e2e\u6211\u4eec\u628a\u5c06 Pod \u548cReplicaSet \u7684\u5b9e\u9645\u72b6\u6001\u6539\u53d8\u5230\u6211\u4eec\u60f3\u8981\u7684\u76ee\u6807\u72b6\u6001\u3002<\/p>\n\n\n\n

\u800c\u5b9e\u9645\u4e0a\uff0c\u7167\u4e0a\u8ff0\u6240\u5c5e\uff0cDeployment \u662fK8S\u5728V1.2\u624d\u5f15\u5165\u7684\uff0c\u800cDeployment configurations\u5176\u5b9e\u65e9\u5728Deployment \u88ab\u5f15\u5165K8S\u4e4b\u524d\uff0c\u5df2\u7ecf\u5728Openshift \u4e2d\u5b58\u5728\u3002\u6240\u4ee5\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u53ef\u4ee5\u8fd9\u4e48\u7406\u89e3\uff1a\u7531\u4e8e\u5b9e\u9645\u90e8\u7f72\u7ba1\u7406\u9700\u8981\uff0c\u7ea2\u5e3d\u7684Openshift\u5148\u5b9e\u73b0\u4e86Deployment configurations\uff0c\u6b64\u540e\uff0cK8S\u4e5f\u610f\u8bc6\u5230\u8fd9\u65b9\u9762\u7684\u80fd\u529b\u9700\u8981\uff0c\u6240\u4ee5\u4e5f\u589e\u52a0\u4e86Deployment \u8fd9\u4e2a\u5bf9\u8c61\uff1b\u7531\u4e8e\u7ea2\u5e3d\u5728K8S\u793e\u533a\u7684\u5f71\u54cd\u529b\u548c\u9886\u5bfc\u529b\uff0cK8S\u7684Deployment \u5f88\u5927\u7a0b\u5ea6\u53c2\u7167\u4e86Openshift\u7684Deployment configurations\uff0c\u8fd9\u4e5f\u548cK8S\u7684\u8bb8\u591a\u7248\u672c\u89c4\u8303\u5b9a\u4e49\u7c7b\u4f3c\uff0c\u7ea2\u5e3dOpenshift\u7684\u8bb8\u591a\u5b9e\u8df5\uff0c\u6700\u540e\u6162\u6162\u6210\u4e86Kubernetes \u793e\u533a\u7684\u6807\u51c6\uff0c\u8fd9\u4e5f\u662f\u4e00\u79cd\u5178\u578b\u7684\u5f71\u54cd\u793e\u533a\u3001\u53cd\u54fa\u793e\u533a\u4f53\u73b0\u3002<\/p>\n\n\n\n

\u4ece\u76ee\u524d\u6765\u770b\uff0cOpenshift\u7684Deployment configurations\u548cK8S\u7684Deployment \u529f\u80fd\u7c7b\u4f3c\uff0c\u4f46\u4e5f\u6709\u90e8\u5206\u533a\u522b\uff0cDeployment configurations\u5728Automatic Rollbacks\u3001Triggers\u3001\u751f\u547d\u5468\u671f\u94a9\u5b50(Lifecycle Hook)\u4ee5\u53ca\u5176\u5b83\u90e8\u5206\u6709\u4e00\u4e9b\u7279\u6027\u529f\u80fd\uff0c\u800cDeployment \u5728Rollover\u3001Proportional Scaling\u3001 Pausing Mid-rollout\u7b49\u65b9\u9762\u4e5f\u6709\u4e00\u4e9b\u7279\u6027\u529f\u80fd\u3002<\/p>\n\n\n\n

\u4ece\u957f\u8fdc\u6765\u770b\uff0c\u6211\u4eec\u5e0c\u671b\u672a\u6765\u53ea\u6709\u4e00\u4e2a\u90e8\u7f72\u5bf9\u8c61\uff0c\u80fd\u5728K8S \u7684Deployment\u91cc\u5b9a\u4e49\u66f4\u4e30\u5bcc\u7684\u80fd\u529b\uff0c\u5305\u62ec\u5b9e\u73b0\u6536\u7eb3\u66f4\u591a\u7684Openshift\u7684Deployment configurations\u7684\u80fd\u529b\u5b9a\u4e49\uff1b\u5f53\u7136\uff0c\u5f53\u524dOpenshift\u5e73\u53f0\u5bf9K8S\u7684Deployment\u548cDeployment configurations\u90e8\u7f72\u90fd\u80fd\u652f\u6301\uff0c\u800c\u5728\u4f7f\u7528\u7b56\u7565\u4e0a\uff0c\u9664\u975e\u6211\u4eec\u9700\u8981Deployment configurations\u63d0\u4f9b\u7684\u7279\u5b9a\u529f\u80fd\u6216\u884c\u4e3a\uff0c\u5426\u5219\u5efa\u8bae\u4f7f\u7528Deployments\u3002<\/p>\n\n\n\n


\u5230\u5e95\u662f\u8a72\u7528 Deployment\uff0c\u9084\u662f\u7528 DeploymentConfig<\/strong>?<\/p>\n\n\n\n

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OpenShift \u63d0\u4f9b\u5169\u7a2e\u76f8\u4f3c\u4f46\u4e0d\u540c\u7684\u65b9\u6cd5\u4f86\u5c0d\u61c9\u7528\u7a0b\u5e8f\u9032\u884c\u7ba1\u7406 – Deployment<\/code> \u8ddf DeploymentConfig<\/code>\u3002
\u4f60\u53ef\u4ee5\u900f\u904e\u4ed6\u5011\u4f86\u63cf\u8ff0\u61c9\u7528\u7a0b\u5e8f\u7684\u751f\u547d\u9031\u671f\uff0c\u4f8b\u5982\u8a72\u61c9\u7528\u7a0b\u5e8f\u61c9\u8a72\u904b\u884c\u7684Pod\u6578\u91cf\uff0c\u66f4\u65b0Pod\u7684\u65b9\u5f0f\uff0c\u53ca\u90e8\u7f72\u5931\u6557\u6642\u5982\u4f55\u5feb\u901f\u56de\u5230\u4e0a\u4e00\u500b\u7248\u672c\u3002\u4ee5\u4e0b\u662f\u5169\u8005\u7684\u6bd4\u8f03<\/p>\n\n\n\n

<\/th>Deployment<\/th>DeploymentConfig<\/th><\/tr><\/thead>
\u7ba1\u7406Pod\u6578\u91cf\u7684\u7269\u4ef6<\/td>ReplicaSet<\/a><\/td>ReplicationController<\/a><\/td><\/tr>
\u9078\u64c7\u7b97\u7b26(Selector)<\/td>\u652f\u63f4\u6700\u65b0\u7684 set-based<\/strong> selector. \u4f8b\u5982: environment in (production, qa)<\/code><\/td>\u50c5\u652f\u63f4 equality-based selector. \u4f8b\u5982: environment = production<\/code><\/td><\/tr>
CAP \u7406\u8ad6<\/td>\u504f\u5411\u6578\u64da\u53ef\u7528\u6027\uff08Availability\uff09 \u767c\u751f\u6545\u969c\u671f\u9593\uff0c\u5176\u4ed6\u4e3b\u670d\u52d9\u5668\u53ef\u80fd\u6703\u540c\u6642\u5c0d\u540c\u4e00 Deployment \u9032\u884c\u64cd\u4f5c\u3002<\/td>\u504f\u5411\u6578\u64da\u4e00\u81f4\u6027\uff08Consistency\uff09 \u5982\u679c\u904b\u884cDeployer Pod\u7684\u7bc0\u9ede\u767c\u751f\u6545\u969c\uff0c\u5b83\u4e0d\u6703\u88ab\u5176\u4ed6\u7bc0\u9ede\u66ff\u63db\u3002 \u8a72\u7a0b\u5e8f\u6703\u4e00\u76f4\u7b49\u5230\u8a72\u7bc0\u9ede\u91cd\u65b0\u4e0a\u7dda\u6216\u88ab\u624b\u52d5\u522a\u9664\u3002<\/td><\/tr>
\u81ea\u52d5 rollbacks<\/td>\u4e0d\u652f\u63f4<\/td>\u5982\u679c\u767c\u751f\u6545\u969c\uff0c\u53ef\u4ee5Rollback\u5230\u6700\u8fd1\u6210\u529f\u90e8\u7f72\u7684ReplicationController\u3002<\/td><\/tr>
Trigger<\/td>\u4e0d\u652f\u63f4<\/td>\u7576\u4f60\u4f7f\u7528OpenShift\u5167\u5efa\u7684CI\/CD \u5de5\u5177\u6216 ImageStrem \u529f\u80fd\uff0c\u5247\u7576\u6709\u4efb\u4f55\u8b8a\u52d5\u6642\uff0c\u5b83\u53ef\u4ee5\u81ea\u52d5\u8b93DeploymentConfig \u9032\u884c\u66f4\u65b0\u3002<\/td><\/tr>
Lifecycle hooks<\/td>\u4e0d\u652f\u63f4<\/td>\u53ef\u4ee5\u5728 \uff2cifecycle \u7684\u5404\u500b\u968e\u6bb5\u81ea\u5b9a\u7fa9\u8981\u57f7\u884c\u7684\u4efb\u52d9\u3002<\/td><\/tr>
\u81ea\u884c\u5b9a\u7fa9\u66f4\u65b0\u7b56\u7565<\/td>\u4e0d\u652f\u63f4<\/td>\u652f\u63f4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Kubernetes \u652f\u63f4\u7684 Deployments \u548c OpenShift \u63d0\u4f9b\u7684 DeploymentConfig \u5747\u53ef\u4ee5\u7528\u4f86\u6709\u6548\u7684\u7ba1\u7406Pod\u3002 \u5118\u7ba1DeploymentConfig \u6bd4 Deployment \u5177\u6709\u66f4\u591a\u529f\u80fd\uff0c\u4f46\u9019\u4e9b\u529f\u80fd\u5176\u5be6\u5728\u5927\u591a\u6578\u60c5\u6cc1\u4e0b\u90fd\u4e0d\u662f\u5f88\u6709\u7528\uff0c\u9664\u975e\u60a8\u975e\u5e38\u9700\u8981DeploymentConfig \u63d0\u4f9b\u7684\u7279\u5b9a\u529f\u80fd\u6216\u884c\u70ba\uff0c\u5426\u5247\u5efa\u8b70\u4f7f\u7528 Deployment\u3002<\/p>\n\n\n\n

\u4ee5\u4e0b\u662f DeploymentConfig \u7bc4\u4f8b\u3002<\/strong><\/p>\n\n\n\n

\n\n\n\n
apiVersion: v1\nkind: DeploymentConfig\nmetadata:\n  name: nginx-dc\n  labels:\n    app: nginx\nspec:\n  replicas: 1\n  selector:\n    app: nginx\n  template:\n    metadata:\n      labels:\n        app: nginx\n    spec:\n      containers:\n      - name: nginx\n        image: quay-eu-uat\/application-images\/test:1\n        imagePullPolicy: Always\n        ports:\n        - containerPort: 8080<\/pre>\n\n\n\n
\u90e8\u7f72\u5230Openshift\u4e0a<\/p>\n\n\n\n
$ oc apply -f dc.yml\ndeploymentconfig.apps.openshift.io\/nginx-dc configured\n\n$ oc get pods\nNAME             READY   STATUS      RESTARTS   AGE\nnginx-dc-1-deploy   0\/1     Completed   0          86s\nnginx-dc-1-mtrrb    1\/1     Running     0          83s\n<\/pre>\n\n\n\n
\u8ddf Kubernetes \u652f\u63f4\u7684 Deployment \u4e0d\u540c\uff0c\u6bcf\u6b21 DeploymentConfig \u88ab\u90e8\u7f72\u6216\u66f4\u65b0\u6642\uff0c\u90fd\u6703\u7522\u751f\u4e00\u500b Deployer Pod<\/code> \u4f86\u7ba1\u7406\u90e8\u7f72\uff08\u5305\u62ec\u7e2e\u6e1b\u820a\u7684 ReplicationController\uff0c\u64f4\u5927\u65b0\u7684 ReplicationController\u4ee5\u53ca\u904b\u884cLifecycle hooks\uff09\u3002 Deployer Pod<\/code> \u5728\u5b8c\u6210\u90e8\u7f72\u5f8c\u6703\u4fdd\u7559\u4e0d\u78ba\u5b9a\u7684\u6642\u9593\uff0c\u4ee5\u4fdd\u7559\u5176\u90e8\u7f72\u65e5\u8a8c\u3002<\/p>\n\n\n\n
\u900f\u904e DeploymentConfig \u4f86\u589e\u52a0 Pod \u6578\u91cf<\/p>\n\n\n\n
\u4f60\u53ef\u4ee5\u4f7f\u7528 oc scale<\/code> \u6307\u4ee4\u4f86\u624b\u52d5\u8a2d\u5b9a\u4e00\u500b Deployment \u6216 DeploymentConfig \u7ba1\u7406\u7684 Pod \u6578\u91cf. \u4f8b\u5982, \u4e0b\u5217\u6307\u4ee4\u5c07 nginx-dc \u7684 DeploymentConfig \u7684 Pod \u76ee\u6a19\u6578\u91cf\u624b\u52d5\u8a2d\u70ba 2.<\/p>\n\n\n\n
$ oc scale dc nginx-dc --replicas=2\ndeploymentconfig.apps.openshift.io\/nginx-dc scaled\n\n$ oc get pods\nNAME                READY   STATUS      RESTARTS   AGE\nnginx-dc-1-49cpw    1\/1     Running     0          2m54s\nnginx-dc-1-deploy   0\/1     Completed   0          5m45s\nnginx-dc-1-mtrrb    1\/1     Running     0          5m42s\n<\/pre>\n\n\n\n
Rollback \u5230\u4e4b\u524d\u7684\u7248\u672c<\/p>\n\n\n\n
\u56e0\u70ba oc rollback<\/code> \u547d\u4ee4\u50c5\u9069\u7528\u65bc DeploymentConfig\u3002 \u6211\u5efa\u8b70\u5e73\u6642\u4f7f\u7528oc rollout undo<\/code> \u547d\u4ee4\u4ee3\u66ff oc rollback<\/code>\u3002<\/p>\n\n\n\n
\u9996\u5148\uff0c\u6211\u5011\u901a\u904e\u66f4\u6539\u6620\u50cf\u6a94\u6a19\u7c64\u4f86\u66f4\u65b0 \u201cnginx-dc\u201d deploymentConfig\u3002<\/p>\n\n\n\n
$ oc set image dc\/nginx-dc nginx=quay.io\/brandon_tsai\/testlab:2<\/pre>\n\n\n\n
\u7b49\u5f85\u76f4\u5230\u66f4\u65b0\u5b8c\u6210<\/p>\n\n\n\n
$ oc rollout status -w dc\/nginx-dc<\/pre>\n\n\n\n
Rollback \u5230\u524d\u4e00\u7248\u672c\u4e26\u7b49\u5f85\u76f4\u5230 Rollback \u5b8c\u6210.<\/p>\n\n\n\n
$ oc rollout undo --to-revision=1 dc\/nginx\/dc\ndeploymentconfig.apps.openshift.io\/nginx-dc deployment #3 rolled back to nginx-dc-1\n\n$ oc rollout status -w dc\/nginx-dc\nreplication controller \"nginx-dc-3\" successfully rolled out<\/pre>\n\n\n\n
\u6aa2\u67e5\u66f4\u65b0\u6b77\u53f2\u7d00\u9304.<\/p>\n\n\n\n
$ oc rollout history dc\/nginx-dc\ndeploymentconfig.apps.openshift.io\/nginx-dc\nREVISION\tSTATUS\t\tCAUSE\n1\t\tComplete\tconfig change\n2\t\tComplete\tconfig change\n3\t\tComplete\tconfig change<\/pre>\n\n\n\n
\u7d50\u8ad6<\/strong><\/p>\n\n\n\n
\n\n\n\n
\u5e0c\u671b\u672c\u7bc7\u6709\u8b93\u4f60\u4e86\u89e3\u5230 Deployment \u8ddf DeploymentConfig \u4e4b\u9593\u7684\u5fae\u5c0f\u5dee\u8ddd\u3002
\u8a18\u5f97\uff0c\u9664\u975e\u60a8\u975e\u5e38\u9700\u8981 DeploymentConfig \u63d0\u4f9b\u7684\u7279\u5b9a\u529f\u80fd\u6216\u884c\u70ba\uff0c\u5426\u5247\u5efa\u8b70\u4e00\u5f8b\u4f7f\u7528 Kubernetes \u652f\u63f4\u7684 Deployment<\/strong>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
Openshift\u7684Deployment Configurations\u548cKubernetes \u7684Deploym […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5631"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5631"}],"version-history":[{"count":6,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5631\/revisions"}],"predecessor-version":[{"id":5778,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/5631\/revisions\/5778"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5631"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5631"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5631"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}