#!/usr/bin/env bash
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Uses ansible-pull from a Python venv to create a LXD container
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

usage ()
{
	echo "Uses ansible-pull from a Python venv to create a LXD container"
	echo "  Usage: $1 <new-container-name>"
}

is_in () {
    [[ $2 =~ (^|[[:space:]])$1($|[[:space:]]) ]] && return 1 || return 0
}

CONTAINER="$1"

# Need a container name:
if [ -z "$CONTAINER" ]; then
	usage "$0"
	exit 1
fi

# Container cannot exist already:
ALLCONTAINERS=$(lxc ls -c n --format csv)

is_in "$CONTAINER" "${ALLCONTAINERS}"
container_exists=$?

if [[ ${container_exists} -eq 0 ]]; then
    printf 'ERROR: %s\n' "A container with that name exists already" >&2
    exit 2
fi

echo "Would have launched container"