云原生监控系统Prometheus——Exporter（Elasticsearch监控）

Exporter（Elasticsearch监控）

一、部署 elasticsearch_exporter

  不多bb，直接上配置清单 yaml文件：

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146

kind: Pod apiVersion: v1 metadata:   name: elastic-j9qoiy-elasticsearch-exporter-598c9b47b8-vnd2p   generateName: elastic-j9qoiy-elasticsearch-exporter-598c9b47b8-   namespace: devops-elasticsearch-test   labels:     app: elasticsearch-exporter     pod-template-hash: 598c9b47b8     release: elastic-j9qoiy   annotations:     cni.projectcalico.org/containerID: 7ff05e8f80d31f38d553f592430dfa0a364541bf454da5f628a1a0810d7dd6fd     cni.projectcalico.org/podIP: 10.233.68.42/32     cni.projectcalico.org/podIPs: 10.233.68.42/32     k8s.v1.cni.cncf.io/network-status: |-       [{           "name": "k8s-pod-network",           "ips": [               "10.233.68.42"           ],           "default": true,           "dns": {}       }]     k8s.v1.cni.cncf.io/networks-status: |-       [{           "name": "k8s-pod-network",           "ips": [               "10.233.68.42"           ],           "default": true,           "dns": {}       }]     kubesphere.io/creator: admin spec:   volumes:     - name: kube-api-access-jk9l6       projected:         sources:           - serviceAccountToken:               expirationSeconds: 3607               path: token           - configMap:               name: kube-root-ca.crt               items:                 - key: ca.crt                   path: ca.crt           - downwardAPI:               items:                 - path: namespace                   fieldRef:                     apiVersion: v1                     fieldPath: metadata.namespace         defaultMode: 420   containers:     - name: elasticsearch-exporter       image: 'justwatch/elasticsearch_exporter:1.1.0'       command:         - elasticsearch_exporter         - '--es.uri=http://localhost:9200'         - '--es.all'         - '--es.indices'         - '--es.indices_settings'         - '--es.shards'         - '--es.snapshots'         - '--es.timeout=30s'         - '--web.listen-address=:9108'         - '--web.telemetry-path=/metrics'       ports:         - name: http           containerPort: 9108           protocol: TCP       resources: {}       volumeMounts:         - name: kube-api-access-jk9l6           readOnly: true           mountPath: /var/run/secrets/kubernetes.io/serviceaccount       livenessProbe:         httpGet:           path: /healthz           port: http           scheme: HTTP         initialDelaySeconds: 5         timeoutSeconds: 5         periodSeconds: 5         successThreshold: 1         failureThreshold: 3       readinessProbe:         httpGet:           path: /healthz           port: http           scheme: HTTP         initialDelaySeconds: 1         timeoutSeconds: 5         periodSeconds: 5         successThreshold: 1         failureThreshold: 3       lifecycle:         preStop:           exec:             command:               - /bin/bash               - '-c'               - sleep 20       terminationMessagePath: /dev/termination-log       terminationMessagePolicy: File       imagePullPolicy: IfNotPresent       securityContext:         capabilities:           drop:             - SETPCAP             - MKNOD             - AUDIT_WRITE             - CHOWN             - NET_RAW             - DAC_OVERRIDE             - FOWNER             - FSETID             - KILL             - SETGID             - SETUID             - NET_BIND_SERVICE             - SYS_CHROOT             - SETFCAP         readOnlyRootFilesystem: true   restartPolicy: Always   terminationGracePeriodSeconds: 30   dnsPolicy: ClusterFirst   serviceAccountName: default   serviceAccount: default   nodeName: k8s-workernode-2-128   securityContext:     runAsUser: 1000     runAsNonRoot: true   schedulerName: default-scheduler   tolerations:     - key: node.kubernetes.io/not-ready       operator: Exists       effect: NoExecute       tolerationSeconds: 300     - key: node.kubernetes.io/unreachable       operator: Exists       effect: NoExecute       tolerationSeconds: 300   priority: 0   enableServiceLinks: true   preemptionPolicy: PreemptLowerPriority

二、与 Prometheus 集成

  与 Prometheus 的配置文件 prometheus.yaml 中的 static_configs 模块内，继续追加配置内容来采集 elasticsearch_exporter 提供的数据。添加的参考配置内容如下： 

?

1 2 3 4 5 6 7 8 9 10 11 12 13

scrape_configs:   # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.   - job_name: "prometheus"       # metrics_path defaults to '/metrics'     # scheme defaults to 'http'.       static_configs:       - targets: ["localhost:9090"]         - job_name: "elasticsearch_exporter"     static_configs:       - targets: ["192.168.2.121:9108"]