Dockerhost Monitoring

                                        
Container for monitoring all container on a docker host

                    

        
        

            
            

                

    

    
Docker Monitoring with Icinga2 (through Icinga2 API)


Description


This docker container read the docker.sock and can check the state of a container and also state of a process (define in labels var).


Variables for container


Path to docker.sock file (bind in docker container (-v /var/run/docker.sock:/docker.sock)


DOCKERSOCK=/docker.sock


IP or DNS Name of Icinga2 Server


MONITORING_API_URL=monitorint.server.local


API User of Icinga2 Server


MONITORING_API_USER=root


API User Pass of Icinga2 Server


MONITORING_API_PASS=PASS


API Port of Icinga2 Server


MONITORING_API_PORT=5665


Name of docker host (this will be written in icinga2 conf as a custom vars)


DOCKERSERVERNAME=superdocker


Host template of icinga2 configuration


TEMPLATEHOST=passive-host


Service template of Icinga2 configuration


TEMPLATESERVICE=passive-service


Hostgroup in Icinga2 Server


HOSTGROUP=adito


Servicegroup in Icinga2 Server    


SERVICEGROUP=adito


Time to resend notification


LOOPTIME=2m


Enable Debug


DEBUGNODE=true


docker-compose.yml


icinga2mon:
  image: adito/docker-monitoring
  hostname: icinga2-monitoring
  environment:
    - DOCKERSOCK=/docker.sock
    - MONITORING_API_URL=monitorint.server.local
    - MONITORING_API_USER=root
    - MONITORING_API_PASS=PASS
    - MONITORING_API_PORT=5665
    - DOCKERSERVERNAME=superdocker
    - TEMPLATEHOST=passive-host
    - TEMPLATESERVICE=passive-service
    - HOSTGROUP=adito
    - SERVICEGROUP=adito
    - LOOPTIME=2m
  volumes:
    - /var/run/docker.sock:/docker.sock
  restart: always


Container configuration


If you will not monitor a container, then add the label "monitoring=false"
If you will monitor processes in container you need to define for this a label "processes: '["apache2", "mysqld", "python","vi"]'"


in docker-compose.yml


nginx1:
  image: nginx
  hostname: proxyhosting
  ports:
   - "192.168.42.74:9295:80"
  labels:
    monitoring: "true"
    processes: '["nginx"]'
  volumes:
   - /etc/localtime:/etc/localtime:ro
  restart: always


We've already created a icinga2 container, you can use it with this container.


You find the icinga2 container here