前言:

本文将介绍使用docker-compose部署搭建promtheus监控容器、主机、服务等相关状态;

配合granfana面板构建监控大屏;

由于grafana的报警不是很友好,使用dingtalk,配合altermanager,实现钉钉报警。

一、编写docker-compose(开门见山)

docker环境搭建不再介绍,网上已经一大堆。

首先介绍一下需要部署的组件:

首先创建一个prometheus目录,用来放docker-compose文件已经集群中需要挂载的配置文件。

在prometheus下面创建两个目录

prome:用来存放prometheus相关配置文件

alert:用来存放报警相关配置文件

直接上docker-compose.yml文件

version: '2'
networks:
monitor:
driver: bridge
services:
prometheus:
image: prom/prometheus
container_name: prometheus
hostname: prometheus
restart: always
command:
- '--config.file=/etc/prometheus/prometheus.yml'
- '--web.enable-lifecycle'
- '--storage.tsdb.retention.time=30d'
volumes:
- ./prome:/etc/prometheus
ports:
- "29011:9090"
networks:
- monitor
alertmanager:
image: prom/alertmanager
container_name: alertmanager
hostname: alertmanager
restart: always
volumes:
- /home/docker/prometheus/alert/alertmanager.yml:/etc/alertmanager/alertmanager.yml
ports:
- "29012:9093"
environment:
- TZ=Asia/Shanghai
networks:
- monitor
grafana:
image: grafana/grafana
container_name: grafana
hostname: grafana
restart: always
ports:
- "29013:3000"
networks:
- monitor
node-exporter:
image: quay.io/prometheus/node-exporter
container_name: node-exporter
hostname: node-exporter
restart: always
ports:
- "29014:9100"
networks:
- monitor
cadvisor:
image: google/cadvisor:latest
container_name: cadvisor
hostname: cadvisor
restart: always
volumes:
- /:/rootfs:ro
- /var/run:/var/run:rw
- /sys:/sys:ro
- /home/docker/:/var/lib/docker:ro
ports:
- "29015:8080"
networks:
- monitor
dingtalk:
image: timonwong/prometheus-webhook-dingtalk
container_name: dingtalk
hostname: dingtalk
restart: always
volumes:
- ./alert/config.yml:/etc/prometheus-webhook-dingtalk/config.yml
- ./alert/dingtalk.tmpl:/opt/dingtalk/template/dingtalk.tmpl
ports:
- "29016:8060"
environment:
- TZ=Asia/Shanghai
networks:
- monitor

二、prometheus相关配置文件

注:以下文件地址及命令均为自己随机命名,大家可以自行命令,对应好配置文件中的地址引用即可

1、prometheus/prome/promethues.yml文件是prometheus的配置文件,用来配置一些组件及监控信息,简单如下,需要将ip替换成自己实际的ip地址。

global:
scrape_interval:     15s
evaluation_interval: 15s
alerting:
alertmanagers:
- static_configs:
- targets: ['ip:29012']
rule_files:
- "/etc/prometheus/rules/*.rules"
scrape_configs:
- job_name: 'prometheus'
static_configs:
- targets: ['ip:29011']
- job_name: 'cadvisor'
static_configs:
- targets: ['ip:29015']

2、在prometheus中定义报警规则,达到报警条件,就会通知alertmanager组件进行报警

prometheus/prome/rules/promethues.yml

groups:
- name: 主机存活告警  # 命名
rules:
- alert: 主机存活告警 # 命名
expr: up == 0 # 表达式,分析指标判定告警
for: 60s  # 触发告警持续时间
labels:   # 自定义告警标签
severity: warning
annotations:   # 告警内容注释,根据需要制定
summary: "{{ $labels.instance }} 宕机超过1分钟!"
- name: 主机内存使用率告警
rules:
- alert: 主机内存使用率告警
expr: (1 - (node_memory_MemAvailable_bytes / (node_memory_MemTotal_bytes))) * 100 > 80
for: 1m
labels:
severity: warning
annotations:
summary: "内存利用率大于80%, 实例: {{ $labels.instance }},当前值:{{ $value }}%"
- name: 主机CPU使用率告警
rules:
- alert: 主机CPU使用率告警
expr: 100 - (avg by (instance)(irate(node_cpu_seconds_total{mode="idle"}[1m]) )) * 100 > 70
for: 1m
labels:
severity: warning
annotations:
summary: "CPU近10分钟使用率大于70%, 实例: {{ $labels.instance }},当前值:{{ $value }}%"
- name: 主机磁盘使用率告警
rules:
- alert: 主机磁盘使用率告警
expr: 100 - node_filesystem_free_bytes{fstype=~"xfs|ext4"} / node_filesystem_size_bytes{fstype=~"xfs|ext4"} * 100 > 80
for: 1m
labels:
severity: warning
annotations:
summary: "磁盘使用率大于80%, 实例: {{ $labels.instance }},当前值:{{ $value }}%"

三、报警模块相关配置文件

1、alertmanager相关

alertmanager是prometheus依赖的报警组件,所有的报警消息均是依赖alertmanager进行报警。

由于要配置钉钉报警,默认alertmanager不支持钉钉,需要引用dingtalk组件,以下配置文件中需要配置dingtalkd的url prometheus/alert/alertmanager.yml

global:
# 每5分钟检查一次是否恢复
resolve_timeout: 5m
# route用来设置报警的分发策略
route:
# 采用哪个标签来作为分组依据
group_by: ['alertname']
# 组告警等待时间。也就是告警产生后等待30s,如果有同组告警一起发出
group_wait: 30s
# 两组告警的间隔时间
group_interval: 30s
# 重复告警的间隔时间,减少相同告警的发送频率
repeat_interval: 1h
# 设置默认接收人
receiver: 'webhook'
receivers:
- name: 'webhook'
webhook_configs:
- url: 'http://ip:29016/dingtalk/webhook/send'
send_resolved: true

2、dingtalk相关

首先要添加钉钉报警机器人:

在钉钉上创建一个报警群,打开群设置,选择机器人。

添加一个自定义的机器人

选择加签,创建完成后,会生成机器人的接口,复制保存后用。

回到dingtalk组件中,配置相对应的钉钉机器人的接口。

prometheus/alert/config.yml

## Request timeout
## timeout: 5s
### Uncomment following line in order to write template from scratch (be careful!)
##no_builtin_template: true
### Customizable templates path
#templates:
#- '/opt/dingtalk/template/dingtalk.tmpl'
### You can also override default template using `default_message`
### The following example to use the 'legacy' template from v0.3.0
##default_message:
##  title: '{{ template "legacy.title" . }}'
##  text: '{{ template "legacy.content" . }}'
### Targets, previously was known as "profiles"
targets:
webhook:
url: 'https://oapi.dingtalk.com/robot/send?access_token=????相对应的token?????'
# secret for signature
secret: '相对应的secrt'

然后创建报警的模板格式

prometheus/alert/dingtalk.tmpl

{{ define "__subject" }}
[{{ .Status | toUpper }}{{ if eq .Status "firing" }}:{{ .Alerts.Firing | len }}{{ end }}]
{{ end }}
{{ define "__alert_list" }}{{ range . }}
---
{{ if .Labels.owner }}@{{ .Labels.owner }}{{ end }}
告警状态:{{ .Status }}
告警级别:{{ .Labels.severity }}
告警类型:{{ .Labels.alertname }}
告警主机:{{ .Labels.instance }}
告警详情:{{ .Annotations.description }}
告警时间:{{ (.StartsAt.Add 28800e9).Format "2023-01-01 10:00:00" }}
{{ end }}{{ end }}
{{ define "__resolved_list" }}{{ range . }}
---
{{ if .Labels.owner }}@{{ .Labels.owner }}{{ end }}
告警状态:{{ .Status }}
告警级别:{{ .Labels.severity }}
告警类型:{{ .Labels.alertname }}
告警主机:{{ .Labels.instance }}
告警详情:{{ .Annotations.description }}
告警时间:{{ (.StartsAt.Add 28800e9).Format "2023-01-01 10:00:00" }}
恢复时间:{{ (.EndsAt.Add 28800e9).Format "2023-01-01 10:00:00" }}
{{ end }}{{ end }}
{{ define "default.title" }}
{{ template "__subject" . }}
{{ end }}
{{ define "default.content" }}
{{ if gt (len .Alerts.Firing) 0 }}
**Prometheus故障告警**
{{ template "__alert_list" .Alerts.Firing }}
---
{{ end }}
{{ if gt (len .Alerts.Resolved) 0 }}
**Prometheus故障恢复**
{{ template "__resolved_list" .Alerts.Resolved }}
{{ end }}
{{ end }}
{{ define "ding.link.title" }}{{ template "default.title" . }}{{ end }}
{{ define "ding.link.content" }}{{ template "default.content" . }}{{ end }}
{{ template "default.title" . }}
{{ template "default.content" . }}

四、运行docker-compose

然后运行docker-compose。所有的容器和配置都会启动

docker-compose up -d

正常所有的容器都会拉起来,如果遇到状态为restarting,可能有问题,需要docker logs查看下具体报错信息,相对应解决。

到此这篇关于docker-compose搭建prometheus+grafana+钉钉告警的文章就介绍到这了,更多相关docker compose搭建promtheus 内容请搜索本站以前的文章或继续浏览下面的相关文章希望大家以后多多支持本站!

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