Prometheus and Grafana are great tools for both metric data collection and visualization. Using Prometheus and Grafana, here we shall create a dashboard to monitor Docker container.
Assume, we have already a setup with Grafana & Prometheus and a docker container.
To setup Prometheus & Grafana, Click here.
To setup Docker container, Click hereStep-1: Check docker service is active or not
[root@docker docker]# service docker status| grep active
Redirecting to /bin/systemctl status docker.service
Active: active (running) since Thu 2023-03-30 06:03:24 UTC; 47s ago
[root@docker docker]#
Step-2 : Add below file in docker server/ machine
vi /etc/docker/daemon.json
{
"metrics-addr" : "172.31.37.33:9393",
"experimental" : true
}
[root@docker docker]# service docker restart
Step3: Check running containers if any
[root@docker docker]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
deb6378efe5b ubuntu "/bin/bash" 2 minutes ago Up 6 seconds container5
e2967e62a390 ubuntu "/bin/bash" 2 minutes ago Up 14 seconds container4
d044849ad38e ubuntu "/bin/bash" 2 minutes ago Up 30 seconds container3 container1
[root@docker docker]#
Step-4: Edit prometheus.yml file and restart Prometheus service
[root@grafana ~]# cd /home/ec2-user/prometheus/prometheus_setup/
# vi prometheus.yml
static_configs:
- targets: ["localhost:9090"]
- targets: ["172.31.37.33:9100"]
- targets: ["172.31.37.33:9323"] ## added for docker
!wq!
# systemctl restart prometheus.service
Step-5 : Now connect to Prometheus server and check this target status.
It should be "Up"
Step-6: Create new dashboard/ panel
use below PromoSQL
sum by(state)(engine_daemon_container_states_containers{})
Now you will have data in your panel:
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