ufw-docker/docker-entrypoint.sh
2018-10-03 09:18:28 +08:00

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#!/bin/bash
[[ 0 -eq "$#" ]] && set -- start
ufw_docker_agent_image=192.168.56.120:5000/ufw-docker-agent
case "$1" in
start)
docker service inspect "$ufw_docker_agent" \
--format '{{range $k,$v:=.Spec.Labels}}{{$k}} {{$v}}{{"\n"}}{{end}}' |
while read label port; do
[[ -z "$label" ]] && continue
name="${label#ufw.public.}"
echo "${name}=$port"
done
docker events --format '{{.Time}} {{.Status}} {{.Actor.Attributes.name}}' --filter 'scope=local' --filter 'type=container' |
while read time status name; do
echo "$time $status $name" >&2
declare -a agent_opts=(run --rm --cap-add NET_ADMIN --network host -v /etc/ufw:/etc/ufw "${ufw_docker_agent_image}")
[[ "status" = start ]] && agent_opts+=(allow "$name")
[[ "status" = stop ]] && agent_opts+=(delete allow "$name")
echo docker "${agent_opts[@]}"
done
sleep 60; exit 1
;;
delete|allow)
ufw-docker "$@"
;;
*)
if [[ -f "$1" ]]; then
exec "$@"
else
echo "Unknown parameters: $@" >&2
exit 1
fi
esac