grafana 配置 prometheus 告警(五)

Email configuration

咱们这里选择 email 告警,首先修改 grafana 的配置文件 /etc/grafana/grafana.ini,找到 SMTP 部分,修改成以下:node

[smtp]
;enabled = false
enabled = true
;host = localhost:25
host = smtp.exmail.qq.com:25
;user =
user = notice@wzlinux.com
# If the password contains # or ; you have to wrap it with triple quotes. Ex """#password;"""
;password =
password = Q7P1hsdfsenzzyM
;cert_file =
;key_file =
;skip_verify = false
;from_address = admin@grafana.localhost
from_address = notice@wzlinux.com
from_name = Grafana
# EHLO identity in SMTP dialog (defaults to instance_name)
;ehlo_identity = dashboard.example.com

修改完成后,重启 grafana。linux

Notification channels

登录到 grafana 中,建立一个通知渠道,测试一下,看看是否收到邮件。sql

image-20200524211203445

  • Name - Enter a name for this channel. It will be displayed when users add notifications to alert rules.
  • Type - Select the channel type. Refer to the List of supported notifiers for details.
  • Default (send on all alerts) - When selected, this option sends a notification on this channel for all alert rules.
  • Include Image - See Enable images in notifications for details.
  • Disable Resolve Message - When selected, this option disables the resolve message [OK] that is sent when the alerting state returns to false.
  • Send reminders - When this option is checked additional notifications (reminders) will be sent for triggered alerts. You can specify how often reminders should be sent using number of seconds (s), minutes (m) or hours (h), for example 30s, 3m, 5m or 1h.

Create alerts

grafana 不支持带有变量的模板报警,因此咱们须要建立一个不带有变量的模板,这个咱们能够去官方的 dashboard 中找一个,我这里找到编号为5984,你们能够安装这个模板。ide

image-20200524211617663

我在里面简单修改了一下格式,以及数据源,主要是针对 CPU 的负载修改了一下,其余资源默承认以使用。测试

image-20200524211731861

我这边已经测试过了,没有什么问题,报警均可以正常运行,我把 promSQL 贴出来this

CPU:

100 - (avg by (instance) (irate(node_cpu_seconds_total{mode="idle"}[5m])) * 100)

legend 设置为{{instance}}3d

内存:

100*(node_memory_MemTotal_bytes - node_memory_MemFree_bytes - node_memory_Buffers_bytes - node_memory_Cached_bytes) / node_memory_MemTotal_bytes

legend 设置为{{instance}}code

存储:

100.0 - 100 * ((node_filesystem_avail_bytes / 1000 / 1000 ) / (node_filesystem_size_bytes  / 1024 / 1024))

legend 设置为 {{instance}} - {{mountpoint}}blog

案例

如下拿 CPU 的配置截图给你们看下:ip

Queries:

image-20200525142217564

Visualization:

image-20200525142329210

Alert:

image-20200525142405887

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grafana 配置 prometheus 告警(五)

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