ansible/roles/vm/templates/script_network.j2

#!/bin/bash
{# Updated: 2023-12-05 #}
# master: {{ common_mastering }}
# updated: {{ ansible_date_time.date }}

doBuildSystem() {
    echo "v{{ vm_mastering }}"
}

# Display introduction
doIntro() {
	echo
	echo "Docker Networks Managment: $HOSTNAME"
	doBuildSystem
	echo
}

# Show date/time header
doHeader() {
	NOW=`date +"%Y/%m/%d %H:%M:%S"`
	echo "- $NOW"
	echo ""
}

if [ "$(id -u)" != "0" ]; then
		doIntro
		doHeader
		echo
        echo "This script must be run as root" 1>&2
		echo
        exit 1
fi

SELF=$(realpath $0)
SCRIPT=$(basename $SELF)
CWD=$(realpath $(pwd))
STACKS=$CWD
HOSTNAME=$(hostname)

cd $STACKS

doIntro
doHeader

if [ "$HOSTNAME" == "raijin" ]; then
	echo " - Create Traefik Network"
	### --opt "com.docker.network.driver.mtu=1500" \
	docker network create \
			--attachable \
			--driver bridge \
			--ipv6 \
			--opt "com.docker.network.bridge.name=traefik" \
			--opt "com.docker.network.driver.mtu=9000" \
			traefik
else
	echo " - Only for use on raijin !!!"
fi

exit 0