{"id":303,"date":"2023-05-28T22:38:05","date_gmt":"2023-05-28T14:38:05","guid":{"rendered":"https:\/\/www.dataz8.com\/?p=303"},"modified":"2023-06-06T23:05:15","modified_gmt":"2023-06-06T15:05:15","slug":"kubernetes%ef%bc%9a%e5%ae%88%e6%8a%a4%e8%bf%9b%e7%a8%8bdaemonset","status":"publish","type":"post","link":"https:\/\/www.dataz8.com\/?p=303","title":{"rendered":"Kubernetes\uff1a\u5b88\u62a4\u8fdb\u7a0bDaemonSet"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u5728k8s\u4e2d\uff0c\u4f7f\u7528deployment\u3001statefulset\u5de5\u4f5c\u8d1f\u8f7d\u8d44\u6e90\u6765\u5206\u522b\u7ef4\u62a4\u65e0\u72b6\u6001\u548c\u6709\u72b6\u6001\u5e94\u7528\u3002\u63a5\u4e0b\u6765\u8bb2\u8bb2\u5982\u4f55\u4f7f\u7528DaemonSet\u6765\u7ef4\u62a4\u4e00\u4e2a\u5b88\u62a4\u8fdb\u7a0b\uff08\u5e94\u7528\uff09\u3002<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.dataz8.com\/?p=303\/#1_DaemonSet%E7%AE%80%E4%BB%8B\" >1. DaemonSet\u7b80\u4ecb<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.dataz8.com\/?p=303\/#2_DaemonSet%E4%B8%8EDeployment%E7%9A%84%E5%8C%BA%E5%88%AB\" >2. DaemonSet\u4e0eDeployment\u7684\u533a\u522b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.dataz8.com\/?p=303\/#3_Daemon_Pods%E6%98%AF%E5%A6%82%E4%BD%95%E8%A2%AB%E8%B0%83%E5%BA%A6%E7%9A%84\" >3. Daemon Pods\u662f\u5982\u4f55\u88ab\u8c03\u5ea6\u7684<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.dataz8.com\/?p=303\/#4_%E7%BC%96%E5%86%99DaemonSet_Spec\" >4. \u7f16\u5199DaemonSet Spec<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.dataz8.com\/?p=303\/#5_%E6%B1%A1%E7%82%B9%E5%92%8C%E5%AE%B9%E5%BF%8D%E5%BA%A6\" >5. \u6c61\u70b9\u548c\u5bb9\u5fcd\u5ea6<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.dataz8.com\/?p=303\/#6_%E4%B8%8EDaemon_Pod%E9%80%9A%E4%BF%A1\" >6. \u4e0eDaemon Pod\u901a\u4fe1<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_DaemonSet%E7%AE%80%E4%BB%8B\"><\/span>1. DaemonSet\u7b80\u4ecb<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">DaemonSet\u786e\u4fdd\u5168\u90e8\uff08\u6216\u8005\u67d0\u4e9b\uff09\u8282\u70b9\u4e0a\u8fd0\u884c\u4e00\u4e2aPod\u7684\u526f\u672c\u3002\u5f53\u6709\u8282\u70b9\u52a0\u5165\u96c6\u7fa4\u65f6\uff0c\u4e5f\u4f1a\u4e3a\u4ed6\u4eec\u65b0\u589e\u4e00\u4e2aPod\u3002\u5f53\u6709\u8282\u70b9\u4ece\u96c6\u7fa4\u79fb\u9664\u65f6\uff0c\u8fd9\u4e9bPod\u4e5f\u4f1a\u88ab\u56de\u6536\u3002\u5220\u9664DaemonSet\u5c06\u4f1a\u5220\u9664\u5b83\u521b\u5efa\u7684\u6240\u6709Pod\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>DaemonSet\u7684\u4e00\u4e9b\u5178\u578b\u7528\u6cd5\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u6bcf\u4e2a\u8282\u70b9\u4e0a\u8fd0\u884c\u96c6\u7fa4\u5b88\u62a4\u8fdb\u7a0b\uff0c\u5982\uff0cceph\uff0cglusterd\u3002<\/li>\n\n\n\n<li>\u5728\u6bcf\u4e2a\u8282\u70b9\u4e0a\u8fd0\u884c\u65e5\u5fd7\u6536\u96c6\u5b88\u62a4\u8fdb\u7a0b\uff0c\u5982\uff0cfluentd\uff0clogstash\u3002<\/li>\n\n\n\n<li>\u5728\u6bcf\u4e2a\u8282\u70b9\u4e0a\u8fd0\u884c\u76d1\u63a7\u5b88\u62a4\u8fdb\u7a0b\uff0c\u5982\uff0cPrometheus Node Exporter\uff0ccollectd\uff0cDynatrace OneAgent\uff0cDatadog agent\uff0cNew Relic agent\uff0cGanglia gmond\u6216\u8005Instana agent\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7\u521b\u5efaDaemonSet\u53ef\u4ee5\u786e\u4fdd\u5b88\u62a4\u8fdb\u7a0bpod\u88ab\u8c03\u5ea6\u5230\u6bcf\u4e2a\u53ef\u7528\u8282\u70b9\u4e0a\u8fd0\u884c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b88\u62a4\u8fdb\u7a0bPod\u5177\u6709\u7684\u7279\u70b9\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b83\u8fd0\u884c\u5728k8s\u96c6\u7fa4\u4e2d\u7684\u6bcf\u4e2a\u8282\u70b9\uff08\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff09\u4e0a\uff1b<\/li>\n\n\n\n<li>\u6bcf\u4e2a\u8282\u70b9\u4e0a\u53ea\u6709\u4e00\u4e2a\u8fd9\u6837\u7684Pod\uff1b<\/li>\n\n\n\n<li>\u5f53\u6709\u65b0\u8282\u70b9\u52a0\u5165k8s\u96c6\u7fa4\u65f6\uff0c\u5c31\u4f1a\u5728\u8be5\u65b0\u8282\u70b9\u4e0a\u81ea\u52a8\u521b\u5efaPod\uff1b<\/li>\n\n\n\n<li>\u5f53\u4e00\u4e2a\u8282\u70b9\u88ab\u5220\u9664\u65f6\uff0cPod\u4f1a\u76f8\u5e94\u7684\u88ab\u56de\u6536\u3002<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" data-src=\"https:\/\/www.dataz8.com\/wp-content\/uploads\/2023\/05\/DaemonSet.png\" alt=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 1574px; --smush-placeholder-aspect-ratio: 1574\/594;\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_DaemonSet%E4%B8%8EDeployment%E7%9A%84%E5%8C%BA%E5%88%AB\"><\/span>2. DaemonSet\u4e0eDeployment\u7684\u533a\u522b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Deployment\u90e8\u7f72\u7684\u526f\u672cPod\u4f1a\u5206\u5e03\u5728\u5404\u4e2aNode\u4e0a\uff0c\u6bcf\u4e2aNode\u90fd\u53ef\u80fd\u8fd0\u884c\u597d\u51e0\u4e2a\u526f\u672c\u3002<\/li>\n\n\n\n<li>Daemon\u7684\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\uff1a\u6bcf\u4e2aNode\u4e0a\u6700\u591a\u53ea\u80fd\u8fd0\u884c\u4e00\u4e2a\u526f\u672c\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Daemon_Pods%E6%98%AF%E5%A6%82%E4%BD%95%E8%A2%AB%E8%B0%83%E5%BA%A6%E7%9A%84\"><\/span>3. Daemon Pods\u662f\u5982\u4f55\u88ab\u8c03\u5ea6\u7684<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">DaemonSet\u786e\u4fdd\u6240\u6709\u7b26\u5408\u6761\u4ef6\u7684\u8282\u70b9\u90fd\u8fd0\u884c\u8be5Pod\u7684\u4e00\u4e2a\u526f\u672c\u3002DaemonSet\u63a7\u5236\u5668\u4e3a\u6bcf\u4e2a\u7b26\u5408\u6761\u4ef6\u7684\u8282\u70b9\u521b\u5efa\u4e00\u4e2aPod\uff0c\u5e76\u6dfb\u52a0Pod\u7684 spec.affinity.nodeAffinity \u5b57\u6bb5\u4ee5\u5339\u914d\u76ee\u6807\u4e3b\u673a\u3002Pod\u88ab\u521b\u5efa\u4e4b\u540e\uff0c\u9ed8\u8ba4\u7684\u8c03\u5ea6\u7a0b\u5e8f\u901a\u5e38\u901a\u8fc7\u8bbe\u7f6e .spec.nodeName \u5b57\u6bb5\u6765\u63a5\u7ba1Pod\u5e76\u5c06Pod\u7ed1\u5b9a\u5230\u76ee\u6807\u4e3b\u673a\u3002\u5982\u679c\u65b0\u7684Pod\u65e0\u6cd5\u653e\u5728\u8282\u70b9\u4e0a\uff0c\u5219\u9ed8\u8ba4\u7684\u8c03\u5ea6\u7a0b\u5e8f\u53ef\u80fd\u4f1a\u6839\u636e\u65b0Pod\u7684\u4f18\u5148\u7ea7\u62a2\u5360\uff08\u9a71\u9010\uff09\u67d0\u4e9b\u73b0\u5b58\u7684Pod\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7528\u6237\u901a\u8fc7\u8bbe\u7f6eDaemonSet\u7684 .spec.template.spec.schedulerName \u5b57\u6bb5\uff0c\u53ef\u4ee5\u4e3aDaemonSet\u7684Pod\u6307\u5b9a\u4e0d\u540c\u7684\u8c03\u5ea6\u7a0b\u5e8f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u8bc4\u4f30\u7b26\u5408\u6761\u4ef6\u7684\u8282\u70b9\u65f6\uff0c\u539f\u672c\u5728 .spec.template.spec.affinity.nodeAffinity \u5b57\u6bb5\u4e0a\u6307\u5b9a\u7684\u8282\u70b9\u4eb2\u548c\u6027\u5c06\u7531DaemonSet\u63a7\u5236\u5668\u8fdb\u884c\u8003\u91cf\uff0c\u4f46\u5728\u521b\u5efaPod\u4e0a\u4f1a\u88ab\u66ff\u6362\u4e3a\u4e0e\u7b26\u5408\u6761\u4ef6\u7684\u8282\u70b9\u540d\u79f0\u5339\u914d\u7684\u8282\u70b9\u4eb2\u548c\u6027\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ScheduleDaemonSetPods\u5141\u8bb8\u4f60\u4f7f\u7528\u9ed8\u8ba4\u8c03\u5ea6\u5668\u800c\u4e0d\u662fDaemonSet\u63a7\u5236\u5668\u6765\u8c03\u5ea6\u8fd9\u4e9bDaemonSet\uff0c\u65b9\u6cd5\u662f \u5c06NodeAffinity\u6761\u4ef6\u800c\u4e0d\u662f .spec.nodeName\u6761\u4ef6\u6dfb\u52a0\u5230\u8fd9\u4e9bDaemonSet Pod\u3002\u9ed8\u8ba4\u8c03\u5ea6\u5668\u63a5\u4e0b\u6765\u5c06Pod\u7ed1\u5b9a\u5230\u76ee\u6807\u4e3b\u673a\u3002\u5982\u679cDaemonSet Pod\u7684\u8282\u70b9\u4eb2\u548c\u6027\u914d\u7f6e\u5df2\u5b58\u5728\uff0c\u5219\u88ab\u66ff\u6362\uff08\u539f\u59cb\u7684\u8282\u70b9\u4eb2\u548c\u6027\u914d\u7f6e\u5728\u9009\u62e9\u76ee\u6807\u4e3b\u673a\u4e4b\u524d\u88ab\u8003\u8651\uff09\u3002DaemonSet\u63a7\u5236\u5668\u4ec5\u5728\u521b\u5efa\u6216\u4fee\u6539DaemonSet Pod\u65f6\u6267\u884c\u8fd9\u4e9b\u64cd\u4f5c\uff0c\u5e76\u4e14\u4e0d\u4f1a\u66f4\u6539DaemonSet\u7684 spec.template\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>nodeAffinity:\n  requiredDuringSchedulingIgnoredDuringExecution:\n    nodeSelectorTerms:\n    - matchFields:\n      - key: metadata.name\n        operator: In\n        values:\n        - target-host-name<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_%E7%BC%96%E5%86%99DaemonSet_Spec\"><\/span>4. \u7f16\u5199DaemonSet Spec<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u521b\u5efaDaemonSet<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u5728yaml\u6587\u4ef6\u91cc\u4e2d\u63cf\u8ff0DaemonSet\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684daemonset.yaml\u6587\u4ef6\u63cf\u8ff0\u4e86\u4e00\u4e2a\u8fd0\u884cfluentd-elasticsearch Docker\u955c\u50cf\u7684DaemonSet\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>apiVersion: apps\/v1\nkind: DaemonSet\nmetadata:\n  name: fluentd-elasticsearch\n  namespace: kube-system\n  labels:\n    k8s-app: fluentd-logging\nspec:\n  selector:\n    matchLabels:\n      name: fluentd-elasticsearch\n  template:\n    metadata:\n      labels:\n        name: fluentd-elasticsearch\n    spec:\n      tolerations:\n      # \u8fd9\u4e9b\u5bb9\u5fcd\u5ea6\u8bbe\u7f6e\u662f\u4e3a\u4e86\u8ba9\u8be5\u5b88\u62a4\u8fdb\u7a0b\u96c6\u5728\u63a7\u5236\u5e73\u9762\u8282\u70b9\u4e0a\u8fd0\u884c\n      # \u5982\u679c\u4f60\u4e0d\u5e0c\u671b\u81ea\u5df1\u7684\u63a7\u5236\u5e73\u9762\u8282\u70b9\u8fd0\u884c Pod\uff0c\u53ef\u4ee5\u5220\u9664\u5b83\u4eec\n      - key: node-role.kubernetes.io\/control-plane\n        operator: Exists\n        effect: NoSchedule\n      - key: node-role.kubernetes.io\/master\n        operator: Exists\n        effect: NoSchedule\n      containers:\n      - name: fluentd-elasticsearch\n        image: quay.io\/fluentd_elasticsearch\/fluentd:v2.5.2\n        resources:\n          limits:\n            memory: 200Mi\n          requests:\n            cpu: 100m\n            memory: 200Mi\n        volumeMounts:\n        - name: varlog\n          mountPath: \/var\/log\n      terminationGracePeriodSeconds: 30\n      volumes:\n      - name: varlog\n        hostPath:\n          path: \/var\/log<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u57fa\u4e8eyam\u6587\u4ef6\u521b\u5efaDaemonSet:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>kubectl apply -f daemonset.yaml<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_%E6%B1%A1%E7%82%B9%E5%92%8C%E5%AE%B9%E5%BF%8D%E5%BA%A6\"><\/span>5. \u6c61\u70b9\u548c\u5bb9\u5fcd\u5ea6<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">DaemonSet\u63a7\u5236\u5668\u4f1a\u81ea\u52a8\u5c06\u4e00\u7ec4\u5bb9\u5fcd\u5ea6\u6dfb\u52a0\u5230 DaemonSet Pod\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u5bb9\u5fcd\u5ea6\u952e\u540d<\/strong><\/td><td><strong>\u6548\u679c<\/strong><\/td><td><strong>\u63cf\u8ff0<\/strong><\/td><\/tr><tr><td>node.kubernetes.io\/not-ready<\/td><td>NoExecute<\/td><td>DaemonSet Pod \u53ef\u4ee5\u88ab\u8c03\u5ea6\u5230\u4e0d\u5065\u5eb7\u6216\u8fd8\u4e0d\u51c6\u5907\u63a5\u53d7 Pod \u7684\u8282\u70b9\u4e0a\u3002\u5728\u8fd9\u4e9b\u8282\u70b9\u4e0a\u8fd0\u884c\u7684\u6240\u6709 DaemonSet Pod \u5c06\u4e0d\u4f1a\u88ab\u9a71\u9010\u3002<\/td><\/tr><tr><td>node.kubernetes.io\/unreachable<\/td><td>NoExecute<\/td><td>DaemonSet Pod \u53ef\u4ee5\u88ab\u8c03\u5ea6\u5230\u4ece\u8282\u70b9\u63a7\u5236\u5668\u4e0d\u53ef\u8fbe\u7684\u8282\u70b9\u4e0a\u3002\u5728\u8fd9\u4e9b\u8282\u70b9\u4e0a\u8fd0\u884c\u7684\u6240\u6709 DaemonSet Pod \u5c06\u4e0d\u4f1a\u88ab\u9a71\u9010\u3002<\/td><\/tr><tr><td>node.kubernetes.io\/disk-pressure<\/td><td>NoSchedule<\/td><td>DaemonSet Pod \u53ef\u4ee5\u88ab\u8c03\u5ea6\u5230\u5177\u6709\u78c1\u76d8\u538b\u529b\u95ee\u9898\u7684\u8282\u70b9\u4e0a\u3002<\/td><\/tr><tr><td>node.kubernetes.io\/memory-pressure<\/td><td>NoSchedule<\/td><td>DaemonSet Pod \u53ef\u4ee5\u88ab\u8c03\u5ea6\u5230\u5177\u6709\u5185\u5b58\u538b\u529b\u95ee\u9898\u7684\u8282\u70b9\u4e0a\u3002<\/td><\/tr><tr><td>node.kubernetes.io\/pid-pressure<\/td><td>NoSchedule<\/td><td>DaemonSet Pod \u53ef\u4ee5\u88ab\u8c03\u5ea6\u5230\u5177\u6709\u8fdb\u7a0b\u538b\u529b\u95ee\u9898\u7684\u8282\u70b9\u4e0a\u3002<\/td><\/tr><tr><td>node.kubernetes.io\/unschedulable<\/td><td>NoSchedule<\/td><td>DaemonSet Pod \u53ef\u4ee5\u88ab\u8c03\u5ea6\u5230\u4e0d\u53ef\u8c03\u5ea6\u7684\u8282\u70b9\u4e0a\u3002<\/td><\/tr><tr><td>node.kubernetes.io\/network-unavailable<\/td><td>NoSchedule<\/td><td>\u4ec5\u9488\u5bf9\u8bf7\u6c42\u4e3b\u673a\u8054\u7f51\u7684 DaemonSet Pod \u6dfb\u52a0\u6b64\u5bb9\u5fcd\u5ea6\uff0c\u5373 Pod \u5177\u6709 spec.hostNetwork: true\u3002\u8fd9\u4e9b DaemonSet Pod \u53ef\u4ee5\u88ab\u8c03\u5ea6\u5230\u7f51\u7edc\u4e0d\u53ef\u7528\u7684\u8282\u70b9\u4e0a\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e5f\u53ef\u4ee5\u5728 DaemonSet \u7684 Pod \u6a21\u677f\u4e2d\u5b9a\u4e49\u81ea\u5df1\u7684\u5bb9\u5fcd\u5ea6\u5e76\u5c06\u5176\u6dfb\u52a0\u5230 DaemonSet Pod\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u4e3a DaemonSet \u63a7\u5236\u5668\u81ea\u52a8\u8bbe\u7f6e node.kubernetes.io\/unschedulable:NoSchedule \u5bb9\u5fcd\u5ea6\uff0c \u6240\u4ee5 Kubernetes \u53ef\u4ee5\u5728\u6807\u8bb0\u4e3a\u4e0d\u53ef\u8c03\u5ea6\u7684\u8282\u70b9\u4e0a\u8fd0\u884c DaemonSet Pod\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4f60\u4f7f\u7528 DaemonSet \u63d0\u4f9b\u91cd\u8981\u7684\u8282\u70b9\u7ea7\u522b\u529f\u80fd\uff0c \u4f8b\u5982\u96c6\u7fa4\u8054\u7f51\uff0c Kubernetes \u5728\u8282\u70b9\u5c31\u7eea\u4e4b\u524d\u5c06 DaemonSet Pod \u653e\u5230\u8282\u70b9\u4e0a\u4f1a\u5f88\u6709\u5e2e\u52a9\u3002 \u4f8b\u5982\uff0c\u5982\u679c\u6ca1\u6709\u8fd9\u79cd\u7279\u6b8a\u7684\u5bb9\u5fcd\u5ea6\uff0c\u56e0\u4e3a\u7f51\u7edc\u63d2\u4ef6\u672a\u5728\u8282\u70b9\u4e0a\u8fd0\u884c\uff0c\u6240\u4ee5\u4f60\u53ef\u80fd\u4f1a\u5728\u672a\u6807\u8bb0\u4e3a\u5c31\u7eea\u7684\u8282\u70b9\u4e0a\u9677\u5165\u6b7b\u9501\u72b6\u6001\uff0c \u540c\u65f6\u56e0\u4e3a\u8be5\u8282\u70b9\u8fd8\u672a\u5c31\u7eea\uff0c\u6240\u4ee5\u7f51\u7edc\u63d2\u4ef6\u4e0d\u4f1a\u5728\u8be5\u8282\u70b9\u4e0a\u8fd0\u884c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_%E4%B8%8EDaemon_Pod%E9%80%9A%E4%BF%A1\"><\/span>6. \u4e0eDaemon Pod\u901a\u4fe1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0e DaemonSet \u4e2d\u7684 Pod \u8fdb\u884c\u901a\u4fe1\u7684\u51e0\u79cd\u53ef\u80fd\u6a21\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u63a8\u9001\uff08Push\uff09\uff1a\u914d\u7f6e DaemonSet \u4e2d\u7684 Pod\uff0c\u5c06\u66f4\u65b0\u53d1\u9001\u5230\u53e6\u4e00\u4e2a\u670d\u52a1\uff0c\u4f8b\u5982\u7edf\u8ba1\u6570\u636e\u5e93\u3002 \u8fd9\u4e9b\u670d\u52a1\u6ca1\u6709\u5ba2\u6237\u7aef\u3002<\/li>\n\n\n\n<li>NodeIP \u548c\u5df2\u77e5\u7aef\u53e3\uff1aDaemonSet \u4e2d\u7684 Pod \u53ef\u4ee5\u4f7f\u7528 hostPort\uff0c\u4ece\u800c\u53ef\u4ee5\u901a\u8fc7\u8282\u70b9 IP \u8bbf\u95ee\u5230 Pod\u3002\u5ba2\u6237\u7aef\u80fd\u901a\u8fc7\u67d0\u79cd\u65b9\u6cd5\u83b7\u53d6\u8282\u70b9 IP \u5217\u8868\uff0c\u5e76\u4e14\u57fa\u4e8e\u6b64\u4e5f\u53ef\u4ee5\u83b7\u53d6\u5230\u76f8\u5e94\u7684\u7aef\u53e3\u3002<\/li>\n\n\n\n<li>DNS\uff1a\u521b\u5efa\u5177\u6709\u76f8\u540c Pod \u9009\u62e9\u7b97\u7b26\u7684\u65e0\u5934\u670d\u52a1\uff0c \u901a\u8fc7\u4f7f\u7528 endpoints \u8d44\u6e90\u6216\u4ece DNS \u4e2d\u68c0\u7d22\u5230\u591a\u4e2a A \u8bb0\u5f55\u6765\u53d1\u73b0 DaemonSet\u3002<\/li>\n\n\n\n<li>Service\uff1a\u521b\u5efa\u5177\u6709\u76f8\u540c Pod \u9009\u62e9\u7b97\u7b26\u7684\u670d\u52a1\uff0c\u5e76\u4f7f\u7528\u8be5\u670d\u52a1\u968f\u673a\u8bbf\u95ee\u5230\u67d0\u4e2a\u8282\u70b9\u4e0a\u7684\u5b88\u62a4\u8fdb\u7a0b\uff08\u6ca1\u6709\u529e\u6cd5\u8bbf\u95ee\u5230\u7279\u5b9a\u8282\u70b9\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53c2\u8003\u94fe\u63a5\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">https:\/\/www.kubernetes.org.cn\/4995.html<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">https:\/\/kubernetes.io\/zh-cn\/docs\/concepts\/workloads\/controllers\/daemonset\/<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">https:\/\/www.cnblogs.com\/zouzou-busy\/p\/16154572.html<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728k8s\u4e2d\uff0c\u4f7f\u7528deployment\u3001statefulset &#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_zb_attr":"","zolo_post_video_link":"","footnotes":""},"categories":[5],"tags":[],"series":[],"class_list":["post-303","post","type-post","status-publish","format-standard","hentry","category-kubernetes"],"_links":{"self":[{"href":"https:\/\/www.dataz8.com\/index.php?rest_route=\/wp\/v2\/posts\/303","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dataz8.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dataz8.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dataz8.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dataz8.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=303"}],"version-history":[{"count":18,"href":"https:\/\/www.dataz8.com\/index.php?rest_route=\/wp\/v2\/posts\/303\/revisions"}],"predecessor-version":[{"id":362,"href":"https:\/\/www.dataz8.com\/index.php?rest_route=\/wp\/v2\/posts\/303\/revisions\/362"}],"wp:attachment":[{"href":"https:\/\/www.dataz8.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=303"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dataz8.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=303"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dataz8.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=303"},{"taxonomy":"series","embeddable":true,"href":"https:\/\/www.dataz8.com\/index.php?rest_route=%2Fwp%2Fv2%2Fseries&post=303"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}