Example Debian init.d file for Docker

dockeri.co

#!/bin/sh

### BEGIN INIT INFO
# Provides:           dockerico
# Required-Start:     docker
# Required-Stop:      docker
# Default-Start:      2 3 4 5
# Default-Stop:       0 1 6
# Short-Description:  A badging service for the docker registry.
# Description:
#   dockeri.co is an opensource and free (as in speech and beer!) service for
#   generating svg badges containing statistics about a docker image located
#   on the docker repository.
### END INIT INFO

# Get lsb functions
. /lib/lsb/init-functions

NAME="dockeri.co"
IMAGE="wblankenship/dockeri.co"
TAG="latest"
ARGS="-p 80:8888"
PERSISTANCE=/var/${NAME}

HASH=$(docker images | grep -F "${IMAGE}" | grep -F "$TAG" | awk '{print $3}')
if [ -z "$HASH" ]; then
  log_failure_msg "${NAME} is not installed. Please run $0 download"
  exit 1
fi

download() {
  docker pull "${IMAGE}:${TAG}" 2>/dev/null 1>/dev/null
}

start() {
  mkdir -p "${PERSISTANCE}"
  docker run -d ${ARGS} -v ${PERSISTANCE}:/var/log "${IMAGE}:${TAG}"  2>/dev/null 1>/dev/null
}

terminate() {
  CONTAINER=$(docker ps -a | grep -F "${IMAGE}" | grep -F "${TAG}" | awk '{print $1}')
  docker kill $CONTAINER 2>/dev/null 1>/dev/null
  docker rm $CONTAINER 2>/dev/null 1>/dev/null
}

restart() {
  terminate
  start
}

case "$1" in
  start)
    log_begin_msg "Starting ${NAME}"
    start
    log_end_msg $?
    ;;
  stop)
    log_begin_msg "Stopping ${NAME}"
    terminate
    log_end_msg $?
    ;;
  restart)
    log_begin_msg "Restarting ${NAME}"
    restart
    log_end_msg $?
    ;;
  update)
    log_begin_msg "Updating ${NAME}"
    download
    log_end_msg $?
    log_begin_msg "Restarting ${NAME}"
    restart
    log_end_msg $?
    ;;
  status)
    CONTAINER=$(docker ps -a | grep -F "${IMAGE}" | grep -F "${TAG}" | awk '{print $1}')
    if [ -z "$CONTAINER" ]; then
      log_begin_msg "${NAME} is not running"
      log_end_msg 1
      return 1
    fi
    log_begin_msg "${NAME} running"
    log_end_msg 0
    return 0
    ;;
  *)
    echo "Usage: $0 {start|stop|restart}"
    exit 1
    ;;
esac