• File me tickets or star the repo

Introduction

Get Slack Notifications, When Containers Run Into Issues

Read more: https://www.dennyzhang.com/docker_monitor

General Idea

1. Start a container in the target docker host.
2. This container will query status for all containers.

curl -XGET --unix-socket /var/run/docker.sock http://localhost/containers/json

3. Send slack notifications, we get matched of "unhealthy"

How To Use: Plain Container

• Specify slack credentials via env

export SLACK_CHANNEL="#XXX"
export SLACK_USERNAME="XXX"
export SLACK_TOKEN="xoxp-XXX-XXX-XXX-XXXXXXXX"
export MSG_PREFIX="Monitoring On XX.XX.XX.XX"

• Start container to check

  
  container_name="monitor-docker-slack"
  # Stop and delete existing container
  docker stop $container_name; docker rm "$container_name"

Start container to monitor docker healthcheck status

docker run -v /var/run/docker.sock:/var/run/docker.sock \ -t -d -h $container_name --name $container_name \ -e SLACK_CHANNEL="$SLACK_CHANNEL" -e SLACK_USERNAME="$SLACK_USERNAME" \ -e SLACK_TOKEN="$SLACK_TOKEN" -e MSG_PREFIX="$MSG_PREFIX" \ -e WHITE_LIST="$WHITE_LIST" --restart=always \ denny/monitor-docker-slack:latest

Check status

docker logs "$container_name"

# How To Use: Docker-compose

version: '2' services: monitor-docker-slack: container_name: monitor-docker-slack image: denny/monitor-docker-slack:latest volumes:

• /var/run/docker.sock:/var/run/docker.sock environment: SLACK_CHANNEL: "#XXX" SLACK_USERNAME: "XXX" SLACK_TOKEN: "xoxp-XXX-XXX-XXX-XXXXXXXX" MSG_PREFIX: "Monitoring On XX.XX.XX.XX" restart: always

More customization

• Add message prefix for the slack notification

  export MSG_PREFIX="Docker Env in Denny's env"

  

• Skip checking certain containers by customizing WHITE_LIST env.

  export MSG_PREFIX="Docker Env in Denny's env"
  export WHITE_LIST="nodeexporter,ngin.*"

  

Code is licensed under MIT License.