docker-install.sh

#!/bin/bash
# ---------------------------------------------------------------------------
# docker-install.sh - installing docker

# Copyright 2016,  <shelan@Shelans-MacBook-Pro.local>
# All rights reserved.

# Usage: docker-install.sh [-h|--help] [-h|--host hostip] [-i|--interface interface] [-u|--user user]

# Revision history:
# 2016-03-09 Created by script-generator.sh ver. 3.3
# ---------------------------------------------------------------------------

PROGNAME=${0##*/}
VERSION="0.1"

clean_up() { # Perform pre-exit housekeeping
  return
}

error_exit() {
  echo -e "${PROGNAME}: ${1:-"Unknown Error"}" >&2
  clean_up
  exit 1
}

graceful_exit() {
  clean_up
  exit
}

signal_exit() { # Handle trapped signals
  case $1 in
    INT)
      error_exit "Program interrupted by user" ;;
    TERM)
      echo -e "\n$PROGNAME: Program terminated" >&2
      graceful_exit ;;
    *)
      error_exit "$PROGNAME: Terminating on unknown signal" ;;
  esac
}

usage() {
  echo -e "Usage: $PROGNAME [-help |--help] [-h|--host hostip] [-i|--interface interface] [-u|--user user]"
}

help_message() {
  cat <<- _EOF_
  $PROGNAME ver. $VERSION
  installing docker

  $(usage)

  Options:
  -help, --help  Display this help message and exit.
  -h, --host hostip  host ip address of the machine
    Where 'hostip' is the Host ip address.
  -i, --interface interface  Interface of the machine to use in engine url
    Where 'interface' is the Interface of the engine url.
  -u, --user user  user name of the docker user
    Where 'user' is the user name of the docker user.

_EOF_
  return
}

# Trap signals
trap "signal_exit TERM" TERM HUP
trap "signal_exit INT"  INT



# Parse command-line
while [[ -n $1 ]]; do
  case $1 in
    -help | --help)
      help_message; graceful_exit ;;
    -h | --host)
      echo "host ip address of the machine"; shift; hostip="$1" ;;
    -i | --interface)
      echo "Interface of the machine to use in engine url"; shift; interface="$1" ;;
    -u | --user)
      echo "user name of the docker user"; shift; user="$1" ;;
    -* | --*)
      usage
      error_exit "Unknown option $1" ;;
    *)
      echo "Argument $1 to process..." ;;
  esac
  shift
done

# Main logic

sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
sudo sh -c 'echo "deb https://apt.dockerproject.org/repo ubuntu-wily main" > /etc/apt/sources.list.d/docker.list'
sudo apt-get update
sudo apt-get -y install linux-image-extra-$(uname -r)
sudo apt-get -y install docker-engine
usermod -a -G docker $user   ## add vagrant user to docker group
sudo mkdir -p /etc/systemd/system/docker.service.d/ 
sudo echo "[Service]" >> /etc/systemd/system/docker.service.d/docker.conf
sudo echo "ExecStart=" >> /etc/systemd/system/docker.service.d/docker.conf
sudo echo "ExecStart=/usr/bin/docker daemon -H fd:// --cluster-store=consul://$hostip:8500 --cluster-advertise=$interface:2375 -H=tcp://0.0.0.0:2375 -H=unix:///var/run/docker.sock" >> /etc/systemd/system/docker.service.d/docker.conf

sudo systemctl daemon-reload
sudo systemctl restart docker
sudo systemctl status docker

graceful_exit