前文写了关于Prometheus + Altermanager实现告警邮件的通知，接下来，实现企业微信告警通知。
- 企业微信
注册企业微信账号，https://work.weixin.qq.com/ ，用于监控报警通知，无需企业认证。
登录企业微信，应用管理 -> 应用 -> 添加第三方应用，填写应用信息，基本信息如下：
其中，AgentId 和 Secret 后面 alertmanager.yml 配置时会使用到。 - Altermanager配置
进入 Altermanager 应用目录。查看文件 /data/prometheus/alertmanager/alertmanager.yml。global: resolve_timeout: 5m # Email notifications smtp_smarthost: 'smtp.hicoco.com:25' smtp_from: '[email protected]' smtp_auth_username: '[email protected]' smtp_auth_password: '123123' smtp_require_tls: false # wechat templates templates: - '/data/prometheus/alertmanager/wechat.tmpl' # 报警模板地址 route: group_by: ['monitor_base'] # 分组依据 group_wait: 10s group_interval: 10s repeat_interval: 1h receiver: wechat # receiver优先接收组，所以接下来优先由wechat发出报警通知。 routes: # route子节点 - receiver: mail match_re: level: mail # 匹配到 level 时，mail的使用邮件报警，这里的 level 是rules文件中的labels指定的 group_wait: 10s receivers: # email config - name: 'mail' # 子节点 email 报警配置 email_configs: - to: '[email protected], [email protected]' # 配置多个 email 地址 send_resolved: true # wechat config - name: 'wechat' # 子节点 wechat 报警配置 wechat_configs: - corp_id: 'abc' # 企业账户唯一ID，我的企业 -> 企业信息 查看 to_party: '2xxx' # 发送的组，企业微信中 通信录 -> 选择组 -> 部门ID agent_id: '1xxx' # 第三方企业应用ID，创建的第三方企业应用详情中查看 api_secret: 'abcabc' # 第三方企业应用秘钥，创建的第三方企业应用详情中查看 send_resolved: true # 告警解除发送通知 inhibit_rules: - source_match: severity: 'critical' target_match: severity: 'warning' equal: ['alertname', 'dev', 'instance']微信报警模板文件 /data/prometheus/alertmanager/wechat.tmpl。
{{ define "wechat.default.message" }} {{ range $i, $alert :=.Alerts }} ======== 监控报警 ======== 告警状态：{{ .Status }} 告警级别：{{ $alert.Labels.level }} 告警类型：{{ $alert.Labels.alertname }} 告警应用：{{ $alert.Annotations.summary }} 告警主机：{{ $alert.Labels.instance }} 告警详情：{{ $alert.Annotations.description }} 告警时间：{{ (.StartsAt.Add 28800e9).Format "2006-01-02 15:04:05" }} # UTC时间调整为北京时间+8:00 ======== END ======== {{ end }} {{ end }} - Prometheus报警规则设置
进入Prometheus目录，设置rules规则，报警规则文件 /usr/local/prometheus/alert-rules.ymlgroups: - name: monitor_base rules: - alert: CpuUsageAlert_waring expr: sum(avg(irate(node_cpu_seconds_total{mode!='idle'}[5m])) without (cpu)) by (instance) > 0.60 for: 2m labels: level: warning annotations: summary: "Instance {{ $labels.instance }} CPU usage high" description: "{{ $labels.instance }} CPU usage above 60% (current value: {{ $value }})" - alert: CpuUsageAlert_serious #expr: sum(avg(irate(node_cpu_seconds_total{mode!='idle'}[5m])) without (cpu)) by (instance) > 0.85 expr: (100 - (avg by (instance) (irate(node_cpu_seconds_total{job=~".*",mode="idle"}[5m])) * 100)) > 85 for: 3m labels: level: serious annotations: summary: "Instance {{ $labels.instance }} CPU usage high" description: "{{ $labels.instance }} CPU usage above 85% (current value: {{ $value }})" - alert: MemUsageAlert_waring expr: avg by(instance) ((1 - (node_memory_MemFree_bytes + node_memory_Buffers_bytes + node_memory_Cached_bytes) / node_memory_MemTotal_bytes) * 100) > 70 for: 2m labels: level: warning annotations: summary: "Instance {{ $labels.instance }} MEM usage high" description: "{{$labels.instance}}: MEM usage is above 70% (current value is: {{ $value }})" - alert: MemUsageAlert_serious expr: (node_memory_MemTotal_bytes - node_memory_MemAvailable_bytes)/node_memory_MemTotal_bytes > 0.90 for: 3m labels: level: serious annotations: summary: "Instance {{ $labels.instance }} MEM usage high" description: "{{ $labels.instance }} MEM usage above 90% (current value: {{ $value }})" - alert: DiskUsageAlert_warning expr: (1 - node_filesystem_free_bytes{fstype!="rootfs",mountpoint!="",mountpoint!~"/(run|var|sys|dev).*"} / node_filesystem_size_bytes) * 100 > 80 for: 2m labels: level: warning annotations: summary: "Instance {{ $labels.instance }} Disk usage high" description: "{{$labels.instance}}: Disk usage is above 80% (current value is: {{ $value }})" - alert: DiskUsageAlert_serious expr: (1 - node_filesystem_free_bytes{fstype!="rootfs",mountpoint!="",mountpoint!~"/(run|var|sys|dev).*"} / node_filesystem_size_bytes) * 100 > 90 for: 3m labels: level: serious annotations: summary: "Instance {{ $labels.instance }} Disk usage high" description: "{{$labels.instance}}: Disk usage is above 90% (current value is: {{ $value }})" - alert: NodeFileDescriptorUsage expr: avg by (instance) (node_filefd_allocated{} / node_filefd_maximum{}) * 100 > 60 for: 2m labels: level: warning annotations: summary: "Instance {{ $labels.instance }} File Descriptor usage high" description: "{{$labels.instance}}: File Descriptor usage is above 60% (current value is: {{ $value }})" - alert: NodeLoad15 expr: avg by (instance) (node_load15{}) > 80 for: 2m labels: level: warning annotations: summary: "Instance {{ $labels.instance }} Load15 usage high" description: "{{$labels.instance}}: Load15 is above 80 (current value is: {{ $value }})" - alert: NodeAgentStatus expr: avg by (instance) (up{}) == 0 for: 2m labels: level: warning annotations: summary: "{{$labels.instance}}: has been down" description: "{{$labels.instance}}: Node_Exporter Agent is down (current value is: {{ $value }})" - alert: NodeProcsBlocked expr: avg by (instance) (node_procs_blocked{}) > 10 for: 2m labels: level: warning annotations: summary: "Instance {{ $labels.instance }} Process Blocked usage high" description: "{{$labels.instance}}: Node Blocked Procs detected! above 10 (current value is: {{ $value }})" - alert: NetworkTransmitRate #expr: avg by (instance) (floor(irate(node_network_transmit_bytes_total{device="ens192"}[2m]) / 1024 / 1024)) > 50 expr: avg by (instance) (floor(irate(node_network_transmit_bytes_total{}[2m]) / 1024 / 1024 * 8 )) > 40 for: 1m labels: level: warning annotations: summary: "Instance {{ $labels.instance }} Network Transmit Rate usage high" description: "{{$labels.instance}}: Node Transmit Rate (Upload) is above 40Mbps/s (current value is: {{ $value }}Mbps/s)" - alert: NetworkReceiveRate #expr: avg by (instance) (floor(irate(node_network_receive_bytes_total{device="ens192"}[2m]) / 1024 / 1024)) > 50 expr: avg by (instance) (floor(irate(node_network_receive_bytes_total{}[2m]) / 1024 / 1024 * 8 )) > 40 for: 1m labels: level: warning annotations: summary: "Instance {{ $labels.instance }} Network Receive Rate usage high" description: "{{$labels.instance}}: Node Receive Rate (Download) is above 40Mbps/s (current value is: {{ $value }}Mbps/s)" - alert: DiskReadRate expr: avg by (instance) (floor(irate(node_disk_read_bytes_total{}[2m]) / 1024 )) > 200 for: 2m labels: level: warning annotations: summary: "Instance {{ $labels.instance }} Disk Read Rate usage high" description: "{{$labels.instance}}: Node Disk Read Rate is above 200KB/s (current value is: {{ $value }}KB/s)" - alert: DiskWriteRate expr: avg by (instance) (floor(irate(node_disk_written_bytes_total{}[2m]) / 1024 / 1024 )) > 20 for: 2m labels: level: warning annotations: summary: "Instance {{ $labels.instance }} Disk Write Rate usage high" description: "{{$labels.instance}}: Node Disk Write Rate is above 20MB/s (current value is: {{ $value }}MB/s)" - 告警测试
手动触发告警，如触发node内存告警，稍等一会儿，微信查看收到报警通知信息。