{"id":739,"date":"2024-11-09T22:08:21","date_gmt":"2024-11-09T14:08:21","guid":{"rendered":"https:\/\/www.db2go.net\/?p=739"},"modified":"2024-11-09T22:08:21","modified_gmt":"2024-11-09T14:08:21","slug":"%e4%ba%8c-%e8%be%b9%e7%bc%98%e8%ae%a1%e7%ae%97%e4%b8%8e%e5%ae%b9%e5%99%a8%e7%bc%96%e6%8e%92%e7%9a%84%e6%a0%b8%e5%bf%83%e4%bb%a3%e7%a0%81","status":"publish","type":"post","link":"https:\/\/www.db2go.net\/?p=739","title":{"rendered":"\u4e8c.\u8fb9\u7f18\u8ba1\u7b97\u4e0e\u5bb9\u5668\u7f16\u6392\u7684\u6838\u5fc3\u4ee3\u7801"},"content":{"rendered":"<p>\u5728 KubeEdge \u4e2d\uff0c\u8fb9\u7f18\u8ba1\u7b97\u548c\u5bb9\u5668\u7f16\u6392\u7684\u6838\u5fc3\u529f\u80fd\u4f9d\u6258 <code>edged<\/code> \u6a21\u5757\u6765\u5b9e\u73b0\u3002<code>edged<\/code> \u6a21\u5757\u5728\u8fb9\u7f18\u8282\u70b9\u4e0a\u5145\u5f53\u4e86\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684 Kubernetes kubelet\uff0c\u7528\u4e8e\u7ba1\u7406\u5bb9\u5668\u751f\u547d\u5468\u671f\u3001\u8d44\u6e90\u5206\u914d\u4ee5\u53ca\u4e0e Kubernetes API \u4ea4\u4e92\u3002\u4ee5\u4e0b\u662f\u8fb9\u7f18\u8ba1\u7b97\u4e0e\u5bb9\u5668\u7f16\u6392\u7684\u6838\u5fc3\u4ee3\u7801\u5206\u6790\uff1a<\/p>\n<h3>1. <code>edged<\/code> \u6a21\u5757\u7684\u6574\u4f53\u67b6\u6784<\/h3>\n<p><code>edged<\/code> \u6a21\u5757\u4f4d\u4e8e <code>edge\/pkg\/edged<\/code> \u76ee\u5f55\u4e0b\uff0c\u5b83\u7684\u4e3b\u8981\u529f\u80fd\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u7ba1\u7406\u5bb9\u5668\u7684\u521b\u5efa\u3001\u542f\u52a8\u3001\u505c\u6b62\u548c\u5220\u9664\u3002<\/li>\n<li>\u76d1\u63a7\u5bb9\u5668\u7684\u8fd0\u884c\u72b6\u6001\uff0c\u5e76\u5c06\u72b6\u6001\u66f4\u65b0\u53d1\u9001\u81f3\u4e91\u7aef\u3002<\/li>\n<li>\u901a\u8fc7\u7f13\u5b58\u8d44\u6e90\u6570\u636e\u51cf\u5c11\u4e0e\u4e91\u7aef\u7684\u901a\u4fe1\u91cf\u3002<\/li>\n<li>\u652f\u6301\u79bb\u7ebf\u8fd0\u884c\u6a21\u5f0f\uff0c\u4f7f\u8fb9\u7f18\u8282\u70b9\u5728\u65ad\u7f51\u65f6\u4e5f\u80fd\u6b63\u5e38\u5de5\u4f5c\u3002<\/li>\n<\/ul>\n<h3>2. \u5bb9\u5668\u751f\u547d\u5468\u671f\u7ba1\u7406<\/h3>\n<p><code>edged<\/code> \u6a21\u5757\u4e2d\u7684\u5bb9\u5668\u751f\u547d\u5468\u671f\u7ba1\u7406\u4ee3\u7801\u4f4d\u4e8e <code>edge\/pkg\/edged\/edged.go<\/code> \u6587\u4ef6\u4e2d\u3002\u5b83\u5305\u542b\u4e86\u5bb9\u5668\u7684\u542f\u52a8\u3001\u505c\u6b62\u3001\u5220\u9664\u7b49\u64cd\u4f5c\u3002<\/p>\n<ul>\n<li><strong>Pod \u521b\u5efa\u4e0e\u542f\u52a8<\/strong>\uff1a\u5728 <code>edged<\/code> \u4e2d\uff0cPod \u7684\u521b\u5efa\u903b\u8f91\u901a\u8fc7 <code>syncPod<\/code> \u51fd\u6570\u6765\u5b9e\u73b0\u3002\u8be5\u51fd\u6570\u6839\u636e\u4ece\u4e91\u7aef\u63a5\u6536\u5230\u7684 Pod \u89c4\u8303\uff0c\u521b\u5efa\u548c\u542f\u52a8\u76f8\u5e94\u7684\u5bb9\u5668\u3002\n<pre><code class=\"language-go line-numbers\">func (e *edged) syncPod(pod *v1.Pod) error {\n  \/\/ \u8c03\u7528 Docker \u6216\u5176\u4ed6\u5bb9\u5668\u8fd0\u884c\u65f6\u63a5\u53e3\uff0c\u521b\u5efa\u5e76\u542f\u52a8\u5bb9\u5668\n  containerStatuses, err := e.containerRuntime.CreatePodSandbox(pod)\n  if err != nil {\n      return err\n  }\n  e.updatePodStatus(pod, containerStatuses)\n  return nil\n}\n<\/code><\/pre>\n<\/li>\n<li><strong>Pod \u5220\u9664\u4e0e\u505c\u6b62<\/strong>\uff1a\u5728 <code>syncTerminatedPod<\/code> \u51fd\u6570\u4e2d\u5b9e\u73b0\u4e86 Pod \u7684\u505c\u6b62\u548c\u5220\u9664\u903b\u8f91\uff0c\u5f53\u68c0\u6d4b\u5230\u67d0\u4e2a Pod \u4e0d\u518d\u9700\u8981\u65f6\uff0c<code>edged<\/code> \u4f1a\u8c03\u7528\u5bb9\u5668\u8fd0\u884c\u65f6\u63a5\u53e3\u505c\u6b62\u5e76\u6e05\u7406\u8be5 Pod\u3002\n<pre><code class=\"language-go line-numbers\">func (e *edged) syncTerminatedPod(pod *v1.Pod) error {\n  err := e.containerRuntime.RemovePodSandbox(pod)\n  if err != nil {\n      return err\n  }\n  e.deletePodStatus(pod)\n  return nil\n}\n<\/code><\/pre>\n<\/li>\n<\/ul>\n<h3>3. \u5bb9\u5668\u8fd0\u884c\u65f6\u63a5\u53e3<\/h3>\n<p>KubeEdge \u901a\u8fc7 <code>containerRuntime<\/code> \u63a5\u53e3\u6765\u4e0e\u5bb9\u5668\u8fd0\u884c\u65f6\uff08\u5982 Docker\u3001containerd\uff09\u8fdb\u884c\u4ea4\u4e92\uff0c\u7ba1\u7406\u5bb9\u5668\u7684\u751f\u547d\u5468\u671f\u3002\u5bb9\u5668\u8fd0\u884c\u65f6\u63a5\u53e3\u7684\u5b9e\u73b0\u4ee3\u7801\u4f4d\u4e8e <code>edge\/pkg\/edged\/container<\/code> \u76ee\u5f55\u4e0b\uff0c\u4e3b\u8981\u63a5\u53e3\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>CreatePodSandbox<\/strong>\uff1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684 Pod \u6c99\u7bb1\uff0c\u521d\u59cb\u5316 Pod \u73af\u5883\u3002<\/li>\n<li><strong>StartContainer<\/strong>\uff1a\u542f\u52a8\u4e00\u4e2a\u7279\u5b9a\u7684\u5bb9\u5668\u5b9e\u4f8b\u3002<\/li>\n<li><strong>StopContainer<\/strong>\uff1a\u505c\u6b62\u6b63\u5728\u8fd0\u884c\u7684\u5bb9\u5668\u3002<\/li>\n<li><strong>RemoveContainer<\/strong>\uff1a\u5220\u9664\u6307\u5b9a\u7684\u5bb9\u5668\u53ca\u5176\u6240\u6709\u76f8\u5173\u8d44\u6e90\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u4e9b\u63a5\u53e3\u5c01\u88c5\u4e86\u4e0e\u5bb9\u5668\u8fd0\u884c\u65f6\u7684\u5177\u4f53\u4ea4\u4e92\uff0c\u4f7f KubeEdge \u53ef\u4ee5\u9002\u914d\u4e0d\u540c\u7684\u5bb9\u5668\u5f15\u64ce\u3002<\/p>\n<h3>4. \u8d44\u6e90\u76d1\u63a7\u548c\u72b6\u6001\u66f4\u65b0<\/h3>\n<p><code>edged<\/code> \u8fd8\u8d1f\u8d23\u76d1\u63a7\u5bb9\u5668\u548c\u8282\u70b9\u7684\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\uff0c\u5e76\u5c06\u72b6\u6001\u66f4\u65b0\u53d1\u9001\u81f3\u4e91\u7aef\uff0c\u5e2e\u52a9\u5b9e\u73b0\u5bb9\u5668\u548c\u8282\u70b9\u7684\u8d44\u6e90\u7ba1\u7406\u4e0e\u8c03\u5ea6\u3002\u4e3b\u8981\u7684\u76d1\u63a7\u4ee3\u7801\u4f4d\u4e8e <code>edge\/pkg\/edged\/status<\/code> \u6587\u4ef6\u4e2d\u3002<\/p>\n<ul>\n<li><strong>Pod \u72b6\u6001\u76d1\u63a7<\/strong>\uff1a<code>syncPodStatus<\/code> \u51fd\u6570\u7528\u4e8e\u5b9a\u671f\u6536\u96c6\u5404\u4e2a Pod \u7684\u8fd0\u884c\u72b6\u6001\uff0c\u5982\u542f\u52a8\u72b6\u6001\u3001\u9519\u8bef\u72b6\u6001\u7b49\u3002\u91c7\u96c6\u7684\u72b6\u6001\u4fe1\u606f\u4f1a\u53d1\u9001\u5230\u4e91\u7aef\u6216\u5b58\u50a8\u5728\u672c\u5730\u7f13\u5b58\u4e2d\u3002\n<pre><code class=\"language-go line-numbers\">func (e *edged) syncPodStatus() {\n  pods := e.podManager.GetPods()\n  for _, pod := range pods {\n      status, err := e.containerRuntime.GetPodStatus(pod)\n      if err != nil {\n          log.Errorf(\"Failed to get status for pod %s\", pod.Name)\n          continue\n      }\n      e.updatePodStatus(pod, status)\n  }\n}\n<\/code><\/pre>\n<\/li>\n<li><strong>\u8282\u70b9\u8d44\u6e90\u76d1\u63a7<\/strong>\uff1a\u901a\u8fc7 <code>getNodeStatus<\/code> \u51fd\u6570\u76d1\u63a7\u8282\u70b9\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\uff08\u5982 CPU\u3001\u5185\u5b58\u3001\u7f51\u7edc\uff09\uff0c\u5e76\u5c06\u6570\u636e\u4e0a\u62a5\u5230\u4e91\u7aef\uff0c\u4f9b\u4e0a\u5c42\u7684\u8d44\u6e90\u8c03\u5ea6\u7cfb\u7edf\u4f7f\u7528\u3002<\/p>\n<\/li>\n<\/ul>\n<h3>5. \u4e91\u7aef\u901a\u4fe1\u4e0e\u672c\u5730\u7f13\u5b58<\/h3>\n<p>\u5728\u8fb9\u7f18\u8ba1\u7b97\u573a\u666f\u4e2d\uff0c\u7f51\u7edc\u53ef\u80fd\u4e0d\u7a33\u5b9a\u3002\u4e3a\u4e86\u5728\u65ad\u7f51\u65f6\u4e5f\u80fd\u6b63\u5e38\u5de5\u4f5c\uff0c<code>edged<\/code> \u6a21\u5757\u4f7f\u7528\u672c\u5730\u7f13\u5b58\u5b58\u50a8 Pod \u548c\u8282\u70b9\u7684\u72b6\u6001\uff0c\u5e76\u5728\u7f51\u7edc\u6062\u590d\u65f6\u4e0e\u4e91\u7aef\u540c\u6b65\u3002<\/p>\n<ul>\n<li><strong>\u672c\u5730\u7f13\u5b58<\/strong>\uff1a\u5728 <code>edge\/pkg\/metamanager<\/code> \u6a21\u5757\u4e2d\u5b9e\u73b0\uff0c\u7528\u4e8e\u5b58\u50a8\u4ece\u4e91\u7aef\u4e0b\u53d1\u7684 Pod \u89c4\u8303\u3001\u8282\u70b9\u4fe1\u606f\u7b49\u6570\u636e\uff0c\u786e\u4fdd\u5728\u7f51\u7edc\u4e0d\u901a\u65f6\uff0c<code>edged<\/code> \u4ecd\u7136\u53ef\u4ee5\u8bbf\u95ee\u8fd9\u4e9b\u6570\u636e\u3002<\/li>\n<li><strong>\u65ad\u7ebf\u7eed\u4f20<\/strong>\uff1a\u5728\u7f51\u7edc\u6062\u590d\u65f6\uff0c<code>edged<\/code> \u4f1a\u901a\u8fc7 <code>metamanager<\/code> \u5c06\u72b6\u6001\u540c\u6b65\u81f3\u4e91\u7aef\uff0c\u4fdd\u8bc1\u6570\u636e\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002<\/li>\n<\/ul>\n<h3>6. \u8d44\u6e90\u914d\u7f6e\u4e0e\u79bb\u7ebf\u6a21\u5f0f<\/h3>\n<p><code>edged<\/code> \u652f\u6301\u5728\u8fb9\u7f18\u8282\u70b9\u4e0a\u52a8\u6001\u914d\u7f6e\u8d44\u6e90\u3002\u79bb\u7ebf\u6a21\u5f0f\u5141\u8bb8\u8fb9\u7f18\u8282\u70b9\u5728\u4e91\u7aef\u4e0d\u53ef\u8fbe\u7684\u60c5\u51b5\u4e0b\uff0c\u4ecd\u7136\u80fd\u591f\u6267\u884c\u5bb9\u5668\u7f16\u6392\u4efb\u52a1\u3002<\/p>\n<ul>\n<li><strong>\u8d44\u6e90\u5206\u914d\u548c\u8c03\u6574<\/strong>\uff1a\u901a\u8fc7 <code>resourceManager<\/code> \u7ba1\u7406\u548c\u8c03\u6574\u8fb9\u7f18\u8282\u70b9\u4e0a\u7684\u8d44\u6e90\u914d\u7f6e\uff0c\u5305\u62ec CPU\u3001\u5185\u5b58\u7b49\uff0c\u4e3a\u6bcf\u4e2a Pod \u5206\u914d\u5408\u7406\u7684\u8d44\u6e90\u3002<\/li>\n<li><strong>\u79bb\u7ebf\u6a21\u5f0f<\/strong>\uff1a\u5728 <code>edged.go<\/code> \u6587\u4ef6\u4e2d\uff0c\u5b9a\u4e49\u4e86\u79bb\u7ebf\u6a21\u5f0f\u7684\u6761\u4ef6\u5224\u65ad\uff0c\u5982\u679c\u68c0\u6d4b\u5230\u7f51\u7edc\u4e0d\u901a\uff0c\u5219\u8fdb\u5165\u79bb\u7ebf\u6a21\u5f0f\uff0c\u4ec5\u4f9d\u8d56\u672c\u5730\u7f13\u5b58\u7684\u6570\u636e\u8fdb\u884c\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h3>7. \u6570\u636e\u7ed3\u6784\u5b9a\u4e49<\/h3>\n<p><code>edged<\/code> \u4e2d\u4f7f\u7528\u7684\u6838\u5fc3\u6570\u636e\u7ed3\u6784\uff0c\u5982 <code>PodStatus<\/code>\u3001<code>ContainerStatus<\/code> \u548c <code>NodeStatus<\/code> \u7b49\uff0c\u5b9a\u4e49\u5728 <code>pkg\/apis<\/code> \u76ee\u5f55\u4e0b\u3002\u8fd9\u4e9b\u6570\u636e\u7ed3\u6784\u7528\u4e8e\u5b58\u50a8\u548c\u4f20\u9012\u5bb9\u5668\u548c\u8282\u70b9\u7684\u72b6\u6001\u4fe1\u606f\u3002<\/p>\n<pre><code class=\"language-go line-numbers\">type PodStatus struct {\n    Name       string\n    Namespace  string\n    Conditions []Condition\n    Containers []ContainerStatus\n    \/\/ \u5176\u4ed6\u5b57\u6bb5\n}\n<\/code><\/pre>\n<h3>\u603b\u7ed3<\/h3>\n<p>KubeEdge \u7684 <code>edged<\/code> \u6a21\u5757\u5b9e\u73b0\u4e86\u8fb9\u7f18\u8ba1\u7b97\u73af\u5883\u4e2d\u7684\u5bb9\u5668\u7f16\u6392\u529f\u80fd\uff0c\u6838\u5fc3\u4ee3\u7801\u4e3b\u8981\u5305\u62ec\u5bb9\u5668\u751f\u547d\u5468\u671f\u7ba1\u7406\u3001\u5bb9\u5668\u8fd0\u884c\u65f6\u63a5\u53e3\u3001\u8d44\u6e90\u76d1\u63a7\u3001\u72b6\u6001\u540c\u6b65\u548c\u79bb\u7ebf\u6a21\u5f0f\u7b49\u3002\u901a\u8fc7 <code>edged<\/code> \u6a21\u5757\uff0cKubeEdge \u80fd\u591f\u5728\u8fb9\u7f18\u8282\u70b9\u4e0a\u9ad8\u6548\u5730\u7ba1\u7406\u548c\u8c03\u5ea6\u5bb9\u5668\uff0c\u5b9e\u73b0\u8fb9\u7f18\u8ba1\u7b97\u7684\u5f39\u6027\u6269\u5c55\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 KubeEdge \u4e2d\uff0c\u8fb9\u7f18\u8ba1\u7b97\u548c\u5bb9\u5668\u7f16\u6392\u7684\u6838\u5fc3\u529f\u80fd\u4f9d\u6258 edged \u6a21\u5757\u6765\u5b9e\u73b0\u3002edged \u6a21\u5757\u5728\u8fb9\u7f18\u8282\u70b9&hellip;<\/p>\n <a href=\"https:\/\/www.db2go.net\/?p=739\" title=\"\u4e8c.\u8fb9\u7f18\u8ba1\u7b97\u4e0e\u5bb9\u5668\u7f16\u6392\u7684\u6838\u5fc3\u4ee3\u7801\" class=\"entry-more-link\"><span>Read More<\/span> <span class=\"screen-reader-text\">\u4e8c.\u8fb9\u7f18\u8ba1\u7b97\u4e0e\u5bb9\u5668\u7f16\u6392\u7684\u6838\u5fc3\u4ee3\u7801<\/span><\/a>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"Layout":"","footnotes":""},"categories":[20],"tags":[],"class_list":["entry","author-suredandan","post-739","post","type-post","status-publish","format-standard","category-20"],"views":859,"_links":{"self":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts\/739","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=739"}],"version-history":[{"count":1,"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts\/739\/revisions"}],"predecessor-version":[{"id":740,"href":"https:\/\/www.db2go.net\/index.php?rest_route=\/wp\/v2\/posts\/739\/revisions\/740"}],"wp:attachment":[{"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=739"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=739"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.db2go.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=739"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}