查看docker运行状态
docker stats启动docker cadvisor
- 直接运行docker
docker run -d \
--volume=/:/rootfs:ro \
--volume=/var/run:/var/run:rw \
--volume=/sys:/sys:ro \
--volume=/var/lib/docker/:/var/lib/docker:ro \
--publish=8080:8080 \
--name=cadvisor \
gcr.io/cadvisor/cadvisor:v0.44.0- docker-compose.yml方式
mkdir /data/cadvisor
cat >docker-compose.yml << 'EOF'
version: '3.3'
networks:
monitoring:
driver: bridge
services:
cadvisor:
image: gcr.io/cadvisor/cadvisor:v0.44.0
# image: google/cadvisor:latest
container_name: cadvisor
restart: always
volumes:
- /etc/localtime:/etc/localtime:ro
- /:/rootfs:ro
- /var/run:/var/run:rw
- /sys:/sys:ro
- /var/lib/docker/:/var/lib/docker:ro
networks:
- monitoring
ports:
- 8080:8080
EOF运行
docker-compose up -dcheck
通过访问 http://10.19.1.220:8080可以查看，当前主机上容器的运行状态，
采集样本 http://10.19.1.220:8080/metrics)更新 prometheus.yml配置
- job_name: 'cadvisor'
scrape_interval: 15s
static_configs:
- targets: ['cadvisor:8080']
labels:
instance: Prometheus服务器
#增加新的cadvisor配置
- targets: ['10.19.1.220:8080']
labels:
instance: cadvisor-220服务器
docker触发器
cat >prometheus/rules/docker.yml << 'EOF'
groups:
- name: DockerContainers
rules:
- alert: ContaonerKilled
expr: time() -Container_last_seen > 60
for: 0m
labels:
severiry: warning
annotations:
summary: "Docker容器被杀死,容器: {{ $labels.instance }}"
description: "{{ $value }} 容器消失了"
EOF热加载
docker exec -it prometheus promtool check config /etc/prometheus/prometheus.yml
curl -X POST http://localhost:9090/-/reload添加dashboard
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