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2025-09-23 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Servers >
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Alertmanager and Prometheus are two separate components. Prometheus server sends alarm to Alertmanager according to alarm rules, and then Alertmanager sends messages such as silencing, inhibition, aggregation, etc. through email, WeChat, etc.
Install and deploy alertmanager
download package
wget https://github.com/prometheus/alertmanager/releases/download/v0.20.0/alertmanager-0.20.0.linux-amd64.tar.gz
Unpack installation
tar zxvf alertmanager-0.16.0.linux-amd64.tar.gz && cd alertmanager-0.16.0.linux-amd64
Start alertmanager
./ alertmanager --config.file=alertmanager.yml
Configure prometheus to communicate with alertmanager
Modify the prometheus.yml profile
Configure communication with alertmanager
alerting: alertmanagers: - static_configs: - targets: - x.x.x.x:9093
Add alarm rule to monitor host service. Default is 1.
#Load rules once and periodically evaluate them according to the global 'evaluation_interval'.
rule_files:
"rules/*.yml"groups:- name: generals.rules rules: - alert: InstanceDown expr: up == 0 for: 1m labels: severity: error annotations: summary: "Instance {{ $labels.isinstance }} down" description: "{{ $labels.instance }} down more than 1 minutes"
Overload the configuration file kill -hup $pid or restart the prometheus service
View configured alarm rules
trigger an alarm
Alarm rule has been created, set email notification alarm, qq mailbox is displayed, qq mailbox needs to be enabled smtp,
smtp_require_tls is true by default, which needs to be modified to false, otherwise the email trigger fails, smtp_auth_password is filled in authorization ma
global: global configuration, including timeout time after alarm resolution, SMTP related configuration, API address of various channel notifications, etc.
route: Used to set the alarm distribution policy. It is a tree structure that matches from left to right in depth-first order.
receivers: Configure information about recipients of alert messages, such as email, wechat, slack, webhook, etc.
global: resolve_timeout: 5m smtp_smarthost: 'smtp.qq.com:465' smtp_from: 'xxx@qq.com' smtp_auth_username: 'xxx@qq.com' smtp_auth_password: 'xxx' #smtp_auth_secret: false smtp_require_tls: false smtp_hello: 'qq.com'route: group_by: ['alertname'] group_wait: 10s group_interval: 10s repeat_interval: 1h receiver: 'mail'receivers:- name: 'mail' email_configs: - to: 'xxx@qq.com' send_resolved: true
Trigger alarm, manually shut down, es service, receive email alarm after a few minutes
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