{"id":1572,"date":"2023-03-25T19:12:26","date_gmt":"2023-03-25T11:12:26","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=1572"},"modified":"2023-04-27T21:32:36","modified_gmt":"2023-04-27T13:32:36","slug":"prometheus-service-discovery-mechanism","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/03\/25\/prometheus-service-discovery-mechanism\/","title":{"rendered":"Prometheus\u670d\u52a1\u53d1\u73b0\u673a\u5236"},"content":{"rendered":"<h2>Prometheus\u4e0e\u670d\u52a1\u53d1\u73b0<\/h2>\n<p>\u4e91\u539f\u751f\u3001\u5bb9\u5668\u573a\u666f\u4e0b\u6309\u9700\u7684\u8d44\u6e90\u4f7f\u7528\u65b9\u5f0f\u5bf9\u4e8e\u76d1\u63a7\u7cfb\u7edf\u800c\u8a00\u5c31\u610f\u5473\u7740\u6ca1\u6709\u4e86\u4e00\u4e2a\u56fa\u5b9a\u7684\u76d1\u63a7\u76ee\u6807\uff0c\u6240\u6709\u7684\u76d1\u63a7\u5bf9\u8c61(\u57fa\u7840\u8bbe\u65bd\u3001\u5e94\u7528\u3001\u670d\u52a1)\u90fd\u5728\u52a8\u6001\u7684\u53d8\u5316\uff0c\u8fd9\u5bf9\u57fa\u4e8e<code>Push<\/code>\u6a21\u5f0f\u4f20\u7edf\u76d1\u63a7\u8f6f\u4ef6\u5e26\u6765\u6311\u6218\u3002<\/p>\n<p><!-- more --><\/p>\n<p>\u5bf9\u4e8e<code>Prometheus<\/code>\u8fd9\u4e00\u7c7b\u57fa\u4e8e<code>Pull<\/code>\u6a21\u5f0f\u7684\u76d1\u63a7\u7cfb\u7edf\uff0c\u663e\u7136\u4e5f\u65e0\u6cd5\u7ee7\u7eed\u4f7f\u7528\u7684<code>static_configs<\/code>\u7684\u65b9\u5f0f\u9759\u6001\u7684\u5b9a\u4e49\u76d1\u63a7\u76ee\u6807\u3002\u800c\u5bf9\u4e8e<code>Prometheus<\/code>\u800c\u8a00\u5176\u89e3\u51b3\u65b9\u6848\u5c31\u662f\u5f15\u5165\u4e00\u4e2a\u4e2d\u95f4\u7684\u4ee3\u7406\u4eba\uff08\u670d\u52a1\u6ce8\u518c\u4e2d\u5fc3\uff09\uff0c\u8fd9\u4e2a\u4ee3\u7406\u4eba\u638c\u63e1\u7740\u5f53\u524d\u6240\u6709\u76d1\u63a7\u76ee\u6807\u7684\u8bbf\u95ee\u4fe1\u606f\uff0c<code>Prometheus<\/code>\u53ea\u9700\u8981\u5411\u8fd9\u4e2a\u4ee3\u7406\u4eba\u8be2\u95ee\u6709\u54ea\u4e9b\u76d1\u63a7\u76ee\u6807\u63a7\u5373\u53ef\uff0c \u8fd9\u79cd\u6a21\u5f0f\u88ab\u79f0\u4e3a\u670d\u52a1\u53d1\u73b0\u3002<\/p>\n<p>\u901a\u8fc7\u670d\u52a1\u53d1\u73b0\u7684\u65b9\u5f0f\uff0c\u7ba1\u7406\u5458\u53ef\u4ee5\u5728\u4e0d\u91cd\u542f<code>Prometheus<\/code>\u670d\u52a1\u7684\u60c5\u51b5\u4e0b\u52a8\u6001\u7684\u53d1\u73b0\u9700\u8981\u76d1\u63a7\u7684<code>Target<\/code>\u5b9e\u4f8b\u4fe1\u606f\u3002<\/p>\n<h2>Prometheus\u670d\u52a1\u53d1\u73b0\u673a\u5236<\/h2>\n<p><code>Prometheus<\/code>\u6570\u636e\u6e90\u7684\u914d\u7f6e\u4e3b\u8981\u5206\u4e3a\u9759\u6001\u914d\u7f6e\u548c\u52a8\u6001\u53d1\u73b0\uff0c\u5e38\u7528\u7684\u4e3a\u4ee5\u4e0b\u51e0\u7c7b:<\/p>\n<ul>\n<li><code>static_configs<\/code>: #\u9759\u6001\u670d\u52a1\u53d1\u73b0<\/li>\n<li><code>file_sd_configs<\/code>: #\u6587\u4ef6\u670d\u52a1\u53d1\u73b0<\/li>\n<li><code>dns_sd_configs<\/code>: #DNS \u670d\u52a1\u53d1\u73b0<\/li>\n<li><code>kubernetes_sd_configs<\/code>: #Kubernetes \u670d\u52a1\u53d1\u73b0<\/li>\n<li><code>consul_sd_configs<\/code>: #Consul \u670d\u52a1\u53d1\u73b0\uff08\u63a8\u8350\u4f7f\u7528\uff09<\/li>\n<\/ul>\n<h3>static_configs: \u9759\u6001\u670d\u52a1\u53d1\u73b0<\/h3>\n<p><code>prometheus.yaml<\/code>\u914d\u7f6e\u6587\u4ef6\uff1a<\/p>\n<pre><code class=\"language-yml\">scrape_configs:\n  - job_name: &#039;prometheus&#039;\n    static_configs:\n      - targets: [&#039;localhost:9090&#039;]\n  - job_name: &#039;grafana&#039;\n    static_configs:\n      - targets:\n          - &#039;grafana-service.ns-monitor:3000&#039;\n  - job_name: &#039;kubernetes-apiservers&#039;<\/code><\/pre>\n<h3>file_sd_configs: \u6587\u4ef6\u670d\u52a1\u53d1\u73b0<\/h3>\n<p>\u57fa\u4e8e\u6587\u4ef6\u7684\u670d\u52a1\u53d1\u73b0\u65b9\u5f0f\u4e0d\u9700\u8981\u4f9d\u8d56\u5176\u4ed6\u5e73\u53f0\u4e0e\u7b2c\u4e09\u65b9\u670d\u52a1\uff0c\u7528\u6237\u53ea\u9700\u8981\u5c06\u65b0\u7684<code>target<\/code>\u4fe1\u606f\u4ee5<code>yaml<\/code>\u6216<code>json<\/code>\u6587\u4ef6\u683c\u5f0f\u6dfb\u52a0\u5230<code>target<\/code>\u6587\u4ef6\u4e2d\uff0cPrometheus\u4f1a\u5b9a\u671f\u4ece\u6307\u5b9a\u6587\u4ef6\u4e2d\u8bfb\u53d6<code>target<\/code>\u4fe1\u606f\u5e76\u66f4\u65b0\u3002<\/p>\n<p>target\u6587\u4ef6\uff1a<\/p>\n<pre><code>vim targets.json<\/code><\/pre>\n<pre><code class=\"language-json\">[\n  {\n    &quot;targets&quot;: [&quot;192.168.20.136:9100&quot;],\n    &quot;labels&quot;: {\n      &quot;instance&quot;: &quot;nodeone&quot;,\n      &quot;job&quot;: &quot;expor_test1&quot;\n    }\n  },\n  {\n    &quot;targets&quot;: [&quot;192.168.20.137:9100&quot;],\n    &quot;labels&quot;: {\n      &quot;instance&quot;: &quot;nodetwo&quot;,\n      &quot;job&quot;: &quot;expor_test2&quot;\n    }\n  }\n]<\/code><\/pre>\n<p><code>prometheus.yaml<\/code>\u914d\u7f6e\u6587\u4ef6\uff1a<\/p>\n<pre><code class=\"language-yml\">scrape_configs:\n- job_name: &#039;file_sd&#039;    #\u6b64\u5904\u5b9a\u4e49\u81ea\u52a8\u53d1\u73b0\u7684\u91c7\u96c6\u4efb\u52a1\n  file_sd_configs:\n    - files:\n      - targets.json    #\u91c7\u96c6\u6587\u4ef6\u540d<\/code><\/pre>\n<p>\u67e5\u770bweb\u754c\u9762<code>targets<\/code>\u51fa\u73b0<code>targets.json<\/code>\u6240\u5b9a\u4e49\u76842\u4e2ajob<\/p>\n<h3>dns_sd_configs: DNS\u670d\u52a1\u53d1\u73b0<\/h3>\n<p>\u5ffd\u7565<\/p>\n<h3>kubernetes_sd_configs: Kubernetes\u670d\u52a1\u53d1\u73b0<\/h3>\n<h4>Kubernetes\u670d\u52a1\u53d1\u73b0\u914d\u7f6e<\/h4>\n<p>\u5bf9\u4e8e<code>Kubernetes<\/code>\u800c\u8a00\uff0c<code>Promethues<\/code>\u901a\u8fc7\u4e0e<code>Kubernetes API<\/code>\u4ea4\u4e92\uff0c\u7136\u540e\u8f6e\u8be2\u8d44\u6e90\u7aef\u70b9\u3002\u76ee\u524d\u4e3b\u8981\u652f\u63015\u79cd\u670d\u52a1\u53d1\u73b0\u6a21\u5f0f\uff0c\u5206\u522b\u662f\uff1a<\/p>\n<ul>\n<li><code>Node<\/code><\/li>\n<li><code>Service<\/code><\/li>\n<li><code>Pod<\/code><\/li>\n<li><code>Endpoints<\/code><\/li>\n<li><code>Ingress<\/code><\/li>\n<\/ul>\n<p>\u5bf9\u5e94\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684<code>role: node<\/code> \/ <code>role: service<\/code><\/p>\n<p>\u52a8\u6001\u83b7\u53d6\u6240\u6709\u8282\u70b9<code>node<\/code>\u7684\u4fe1\u606f\uff0c\u53ef\u4ee5\u6dfb\u52a0\u5982\u4e0b\u914d\u7f6e\uff1a<\/p>\n<ul>\n<li><code>role: node<\/code><\/li>\n<\/ul>\n<pre><code class=\"language-yml\">- job_name: &#039;kubernetes-service-endpoints&#039;\n  kubernetes_sd_configs:\n    - role: node\n    relabel_configs:\n    - action: labelmap\n      regex: __meta_kubernetes_node_label_(.+)\n    - target_label: __address__\n      replacement: kubernetes.default.svc:443\n    - source_labels: [__meta_kubernetes_node_name]\n      regex: (.+)\n      target_label: __metrics_path__\n      replacement: \/api\/v1\/nodes\/${1}\/proxy\/metrics<\/code><\/pre>\n<ul>\n<li><code>role: endpoints<\/code><\/li>\n<\/ul>\n<pre><code class=\"language-yml\">- job_name: &#039;kubernetes-service-endpoints&#039;\n  kubernetes_sd_configs:\n    - role: endpoints\n    relabel_configs:\n    - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scrape]\n      action: keep\n      regex: true\n    - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scheme]\n      action: replace\n      target_label: __scheme__\n      regex: (https?)\n    - source_labels: [__meta_kubernetes_service_annotation_prometheus_io_path]\n      action: replace\n      target_label: __metrics_path__\n      regex: (.+)\n    - source_labels: [__address__, __meta_kubernetes_service_annotation_prometheus_io_port]\n      action: replace\n      target_label: __address__\n      regex: ([^:]+)(?::\\d+)?;(\\d+)\n      replacement: $1:$2\n    - action: labelmap\n      regex: __meta_kubernetes_service_label_(.+)\n    - source_labels: [__meta_kubernetes_namespace]\n      action: replace\n      target_label: kubernetes_namespace\n    - source_labels: [__meta_kubernetes_service_name]\n      action: replace\n      target_label: kubernetes_name<\/code><\/pre>\n<p>\u5bf9\u5e94\u7684<code>service<\/code>\u3001<code>pod<\/code>\u4e5f\u662f\u540c\u6837\u7684\u65b9\u5f0f<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4e3a\u4e86\u80fd\u591f\u8ba9<code>Prometheus<\/code>\u80fd\u591f\u8bbf\u95ee\u6536\u5230<code>Kubernetes API<\/code>\uff0c\u6211\u4eec\u8981\u5bf9<code>Prometheus<\/code>\u8fdb\u884c<strong>\u8bbf\u95ee\u6388\u6743<\/strong>\uff0c\u5373<code>serviceaccount<\/code>\u3002\u5426\u5219\u5c31\u7b97\u914d\u7f6e\u4e86\uff0c\u4e5f\u6ca1\u6709\u6743\u9650\u83b7\u53d6\u3002<\/p>\n<h4>Prometheus \u7684relabel_configs\u914d\u7f6e\u8be6\u89e3<\/h4>\n<p>\uff081\uff09<code>source_labels<\/code>\uff1a\u6e90\u6807\u7b7e\uff0c\u6ca1\u6709\u7ecf\u8fc7<code>relabel<\/code>\u5904\u7406\u4e4b\u524d\u7684\u6807\u7b7e\u540d\u5b57<br \/>\n\uff082\uff09<code>target_label<\/code>\uff1a\u901a\u8fc7<code>action<\/code>\u5904\u7406\u4e4b\u540e\u7684\u65b0\u7684\u6807\u7b7e\u540d\u5b57<br \/>\n\uff083\uff09<code>regex<\/code>\uff1a\u6b63\u5219\u8868\u8fbe\u5f0f\uff0c\u5339\u914d\u6e90\u6807\u7b7e<br \/>\n\uff084\uff09<code>replacement<\/code>\uff1a<code>replacement<\/code>\u6307\u5b9a\u66ff\u6362\u540e\u7684\u6807\u7b7e\uff08<code>target_label<\/code>\uff09\u5bf9\u5e94\u7684\u6570\u503c<br \/>\n\uff085\uff09<code>action<\/code>\uff1a<code>action<\/code>\u5b9a\u4e49\u4e86<code>relabel<\/code>\u7684\u52a8\u4f5c\uff0c<code>action<\/code>\u652f\u6301\u591a\u79cd\uff0c\u5982\u4e0b:<\/p>\n<ul>\n<li><code>replace<\/code>: \u66ff\u6362\u6807\u7b7e\u503c\uff0c\u6839\u636e<code>regex<\/code>\u6b63\u5219\u5339\u914d\u5230\u6e90\u6807\u7b7e\u7684\u503c\uff0c\u5e76\u628a\u5339\u914d\u7684\u503c\u5199\u5165\u5230\u76ee\u7684\u6807\u7b7e\u4e2d<\/li>\n<li><code>keep<\/code>: \u6ee1\u8db3<code>regex<\/code>\u6b63\u5219\u6761\u4ef6\u7684\u5b9e\u4f8b\u8fdb\u884c\u91c7\u96c6\uff0c\u628a<code>source_labels<\/code>\u4e2d\u6ca1\u6709\u5339\u914d\u5230<code>regex<\/code>\u6b63\u5219\u5185\u5bb9\u7684<code>Target<\/code>\u5b9e\u4f8b\u4e22\u6389<\/li>\n<li><code>drop<\/code>\uff1a\u6ee1\u8db3<code>regex<\/code>\u6b63\u5219\u6761\u4ef6\u7684\u5b9e\u4f8b\u4e0d\u91c7\u96c6\uff0c\u628a<code>source_labels<\/code>\u4e2d\u5339\u914d\u5230<code>regex<\/code>\u6b63\u5219\u5185\u5bb9\u7684<code>Target<\/code>\u5b9e\u4f8b\u4e22\u6389<\/li>\n<li><code>labeldrop<\/code>\uff1a\u5bf9\u6293\u53d6\u5230\u7684\u7b26\u5408\u8fc7\u6ee4\u89c4\u5219\u7684<code>target<\/code>\u6807\u7b7e\u8fdb\u884c\u5220\u9664<\/li>\n<li><code>labelkeep<\/code>\uff1a\u5bf9\u6293\u53d6\u5230\u7684\u7b26\u5408\u8fc7\u6ee4\u89c4\u5219\u7684<code>target<\/code>\u6807\u7b7e\u8fdb\u884c\u4fdd\u7559<\/li>\n<li><code>labelmap<\/code>: \u4f1a\u6839\u636e<code>regex<\/code>\u7684\u5b9a\u4e49\u53bb\u5339\u914d<code>Target<\/code>\u5b9e\u4f8b\u6240\u6709\u6807\u7b7e\u7684\u540d\u79f0\uff0c\u5e76\u4e14\u4ee5\u5339\u914d\u5230\u7684\u5185\u5bb9\u4e3a\u65b0\u7684\u6807\u7b7e\u540d\u79f0\uff0c\u5176\u503c\u4f5c\u4e3a\u65b0\u6807\u7b7e\u7684\u503c<\/li>\n<li><code>hashmod<\/code>: \u8bbe\u7f6e<code>target_label<\/code>\u4e3a<code>modulus<\/code>\u8fde\u63a5\u7684\u54c8\u5e0c\u503c<code>source_labels<\/code><\/li>\n<\/ul>\n<h3>consul_sd_configs: Consul\u670d\u52a1\u53d1\u73b0<\/h3>\n<p><code>Consul<\/code>\u662f\u57fa\u4e8e GO \u8bed\u8a00\u5f00\u53d1\u7684\u5f00\u6e90\u5de5\u5177\uff0c\u4e3b\u8981\u9762\u5411\u5206\u5e03\u5f0f\uff0c\u670d\u52a1\u5316\u7684\u7cfb\u7edf\u63d0\u4f9b\u670d\u52a1\u6ce8\u518c\u3001\u670d\u52a1\u53d1\u73b0\u548c\u914d\u7f6e\u7ba1\u7406\u7684\u529f\u80fd\u3002<br \/>\n<code>Consul<\/code>\u63d0\u4f9b\u670d\u52a1\u6ce8\u518c\/\u53d1\u73b0\u3001\u5065\u5eb7\u68c0\u67e5\u3001Key\/Value\u5b58\u50a8\u3001\u591a\u6570\u636e\u4e2d\u5fc3\u548c\u5206\u5e03\u5f0f\u4e00\u81f4\u6027\u4fdd\u8bc1\u7b49\u529f\u80fd\u3002<br \/>\n\u4e4b\u524d\u6211\u4eec\u901a\u8fc7<code>Prometheus<\/code>\u5b9e\u73b0\u76d1\u63a7\uff0c\u5f53\u65b0\u589e\u4e00\u4e2a<code>Target<\/code>\u65f6\uff0c\u9700\u8981\u53d8\u66f4\u670d\u52a1\u5668\u4e0a\u7684\u914d\u7f6e\u6587\u4ef6\uff0c\u5373\u4f7f\u4f7f\u7528<code>file_sd_configs<\/code>\u914d\u7f6e\uff0c\u4e5f\u9700\u8981\u767b\u5f55\u670d\u52a1\u5668\u4fee\u6539\u5bf9\u5e94<code>Json<\/code>\u6587\u4ef6\uff0c\u4f1a\u975e\u5e38\u9ebb\u70e6\u3002<\/p>\n<p><code>prometheus.yml<\/code>\u914d\u7f6e\uff1a<\/p>\n<pre><code class=\"language-yml\">- job_name: &#039;consul-prometheus&#039;\n  consul_sd_configs:\n  - server: &#039;192.168.12.16:8500&#039;\n    services: []  <\/code><\/pre>\n<p>\u8bf4\u660e\u4e00\u4e0b\uff1a\u8fd9\u91cc\u9700\u8981\u4f7f\u7528<code>consul_sd_configs<\/code>\u6765\u914d\u7f6e\u4f7f\u7528<code>Consul<\/code>\u670d\u52a1\u53d1\u73b0\u7c7b\u578b\uff0c<code>server<\/code>\u4e3a<code>Consul<\/code>\u7684\u670d\u52a1\u5730\u5740\u3002\u914d\u7f6e\u5b8c\u6bd5\u540e\uff0c\u91cd\u542f<code>Prometheus<\/code>\u670d\u52a1<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Prometheus\u4e0e\u670d\u52a1\u53d1\u73b0 \u4e91\u539f\u751f\u3001\u5bb9\u5668\u573a\u666f\u4e0b\u6309\u9700\u7684\u8d44\u6e90\u4f7f\u7528\u65b9\u5f0f\u5bf9\u4e8e\u76d1\u63a7\u7cfb\u7edf\u800c\u8a00\u5c31\u610f\u5473\u7740\u6ca1\u6709\u4e86\u4e00\u4e2a\u56fa\u5b9a\u7684\u76d1 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[386],"tags":[394,387],"class_list":["post-1572","post","type-post","status-publish","format-standard","hentry","category-monitor","tag-consul","tag-prometheus"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1572","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1572"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1572\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1572"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1572"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1572"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}