Script to easily create docker networks and volumes

create_docker_volumes_and_networks.sh

#!/bin/bash

#
# Execute:
#   chmod +x create_docker_volumes_and_networks.sh
#   ./create_docker_volumes_and_networks.sh
#
# Verify docker networks and docker network cards:
#    docker network ls
#    ip a
#
# Verify docker volumes:
#    docker volume ls
#
# Delete ALL UNUSED volumes & networks:
#    docker nework prune -f
#    docker volume prune -f
#

#
# Each new networks or volumes will be created.
#
# Note: Names should not contain spaces.
#       They will be replaced by an underscore.
#
# Reminder: Docker volume's default path is in
#           /var/lib/docker but can be changed
#           as explained https://bit.ly/2GApYo3
#
NETWORKS=("reverse_proxy" "web")
VOLUMES=("reverse_proxy")


# Check if all networks exists
for NET in "${NETWORKS[@]}" ; do
  # Replace spaces by underscores
  NET="$(echo ${NET// /_})"
  N=$(docker network ls | grep "$NET")
  if [ -z "$N" ] ; then
    echo "Creating docker network \"$NET\" :"
    docker network create --opt 'com.docker.network.bridge.name'=$NET $NET
    if [ "$?" -ne 0 ] ; then echo "Cannot create docker network $NET" ; fi
    echo ""
  fi
done


# Check if all volumes exists
for VOL in "${VOLUMES[@]}" ; do
  # Replace spaces by underscores
  VOL="$(echo ${VOL// /_})"
  V=$(docker volume ls | grep "$VOL")
  if [ -z "$V" ] ; then
    echo "Creating docker volume \"$VOL\" :"
    docker volume create $VOL
    if [ "$?" -ne 0 ] ; then echo "Cannot create docker volume $VOL" ; fi
    echo ""
  fi
done


echo "All volumes and networks have been created."


exit 0