How do I use docker and docker-compose

Posted on

Objective

Build Bind service with Docker and auto startup it using docker-compose on Ubuntu

Environment

  • Ubuntu 14.04.5 LTS Server
  • docker-compose 1.11.2
  • docker 17.03.0-ce

About docker-compose

Create docker-compose.yml

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mkdir -p ~/bind

cat >> ~/bind/docker-compose.yml << EOF
pichuang-dns:
  image: sameersbn/bind:latest
  dns: 127.0.0.1
  environment:
    - ROOT_PASSWORD=pichuang
  ports:
   - 10000:10000
   - 53:53/udp
  volumes:
    - /srv/docker/dns:/data
EOF

Test

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docker-compose -f ~/bind/docker-compose.yml up -d
docker-compose -f ~/bind/docker-compose.yml ps

About Startup cript

Create Daemon

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cat >> /etc/init.d/bind << EOF
#!/bin/sh

### BEGIN INIT INFO
# Provides:             bind
# Required-Start:       $docker
# Required-Stop:        $docker
# Default-Start:        2 3 4 5
# Default-Stop:         0 1 6
# Short-Description:    Docker Services
### END INIT INFO

set -e

PROJECT_NAME=bind
YAMLFILE=/home/pichuang/docker-compose.yml

DOCKER_COMPOSE_BIN=$(whereis docker-compose|awk '{print $2}')
OPTS="-f $YAMLFILE -p $PROJECT_NAME"
UPOPTS="-d"

. /lib/lsb/init-functions

case "$1" in
    start)
        log_daemon_msg "Starting Docker Compose" "bind" || true
        $DOCKER_COMPOSE_BIN $OPTS up $UPOPTS
        ;;

    stop)
        log_daemon_msg "Stopping Docker Compose" "bind" || true
        $DOCKER_COMPOSE_BIN $OPTS stop
        ;;

    reload)
        log_daemon_msg "Reloading Docker Compose" "bind" || true
        $DOCKER_COMPOSE_BIN $OPTS up $UPOPTS
        ;;

    restart)
        $DOCKER_COMPOSE_BIN $OPTS stop
        $DOCKER_COMPOSE_BIN $OPTS up $UPOPTS
        ;;

    status)
        $DOCKER_COMPOSE_BIN $OPTS ps
        ;;

    *)
        log_action_msg "Usage: /etc/init.d/bind {start|stop|restart|reload|status}" || true
        exit 1
        ;;
esac

exit 0
EOF

chmod +x /etc/init.d/bind

Update rcx.d

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cd /etc/init.d/
update-rc.d -f bind defaults 80 20

Test

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reboot
...
service bind status
service bind stop
service bind start
service bind reload
service bind restart