prometheus13-k8s如何部署alertmanager

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1.四个配置文件

[root@kubemaster01 alertmanager]# ls -l -rw-r--r-- 1 root root  676 Oct 28 15:43 alertmanager-configmap.yaml-rw-r--r-- 1 root root 2183 Oct 28 15:36 alertmanager-deployment.yaml-rw-r--r-- 1 root root  331 Oct 28 15:36 alertmanager-pvc.yaml-rw-r--r-- 1 root root  372 Oct 28 15:36 alertmanager-service.yaml

2.修改pv 以及 config的地址

[root@kubemaster01 alertmanager]# cat alertmanager-pvc.yaml apiVersion: v1kind: PersistentVolumeClaimmetadata:  name: alertmanager  namespace: kube-system  labels:    kubernetes.io/cluster-service: "true"    addonmanager.kubernetes.io/mode: EnsureExistsspec:  storageClassName: managed-nfs-storage   accessModes:    - ReadWriteOnce  resources:    requests:      storage: "2Gi"[root@kubemaster01 alertmanager]# cat alertmanager-configmap.yaml apiVersion: v1kind: ConfigMapmetadata:  name: alertmanager-config  namespace: kube-system  labels:    kubernetes.io/cluster-service: "true"    addonmanager.kubernetes.io/mode: EnsureExistsdata:  alertmanager.yml: |    global:       resolve_timeout: 5m      smtp_smarthost: 'smtp.163.com:25'      smtp_from: 'ww763004768@163.com'      smtp_auth_username: 'ww763004768@163.com'      smtp_auth_password: '123456'      smtp_require_tls: false    receivers:    - name: default-receiver      email_configs:      - to: "w673004768@163.com"    route:      group_interval: 1m      group_wait: 10s      receiver: default-receiver      repeat_interval: 1m[root@kubemaster01 alertmanager]#

3.部署

kubectl  apply -f   alertmanager-configmap.yamlkubectl  apply -f   alertmanager-pvc.yamlkubectl  apply -f   alertmanager-deployment.yamlkubectl  apply -f   alertmanager-service.yaml

4.Prometheus和alertmanager 通讯配置

修改prometheus的配置config-map 然后从新运用

5.查看是否生效

6.修改configmap 修改prometheus的报警规则的

（kubectl apply -f prometheus-configmap.yaml）

创建configmap

kubectl apply -f prometheus-rules.yaml

[root@kubemaster01 prometheus]# cat  prometheus-rules.yaml apiVersion: v1kind: ConfigMapmetadata:  name: prometheus-rules  namespace: kube-systemdata:  general.rules: |    groups:    - name: general.rules      rules:      - alert: InstanceDown        expr: up == 0        for: 1m        labels:          severity: error         annotations:          summary: "Instance {{ $labels.instance }} 停止工作"          description: "{{ $labels.instance }} job {{ $labels.job }} 已经停止5分钟以上."  node.rules: |    groups:    - name: node.rules      rules:      - alert: NodeFilesystemUsage        expr: 100 - (node_filesystem_free_bytes{fstype=~"ext4|xfs"} / node_filesystem_size_bytes{fstype=~"ext4|xfs"} * 100) > 80         for: 1m        labels:          severity: warning         annotations:          summary: "Instance {{ $labels.instance }} : {{ $labels.mountpoint }} 分区使用率过高"          description: "{{ $labels.instance }}: {{ $labels.mountpoint }} 分区使用大于80% (当前值: {{ $value }})"      - alert: NodeMemoryUsage        expr: 100 - (node_memory_MemFree_bytes+node_memory_Cached_bytes+node_memory_Buffers_bytes) / node_memory_MemTotal_bytes * 100 > 80        for: 1m        labels:          severity: warning        annotations:          summary: "Instance {{ $labels.instance }} 内存使用率过高"          description: "{{ $labels.instance }}内存使用大于80% (当前值: {{ $value }})"      - alert: NodeCPUUsage            expr: 100 - (avg(irate(node_cpu_seconds_total{mode="idle"}[5m])) by (instance) * 100) > 60         for: 1m        labels:          severity: warning        annotations:          summary: "Instance {{ $labels.instance }} CPU使用率过高"                 description: "{{ $labels.instance }}CPU使用大于60% (当前值: {{ $value }})"[root@kubemaster01 prometheus]#

prometheus服务挂载configmap

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