Docker `socat` link creation

- `start.sh` will now verify that the port is not already used by another service
- Resolve #1807
- Log when a service is created, or could not be created
- Keep track of which port is already used, including goes & sshd port
pull/197/head
Jean-Philippe Roemer 9 years ago
parent eac91a74d8
commit 02289479ef
  1. 24
      docker/start.sh

@ -13,12 +13,24 @@ for f in /data/gogs/data /data/gogs/conf /data/gogs/log /data/git /data/ssh; do
done
# Bind linked docker container to localhost socket using socat
env | sed -En 's|(.*)_PORT_([0-9]*)_TCP=tcp://(.*):(.*)|\1_\2 socat -ls TCP4-LISTEN:\2,fork,reuseaddr TCP4:\3:\4|p' | \
while read NAME CMD; do
mkdir -p /app/gogs/docker/s6/SOCAT_$NAME
echo -e "#!/bin/sh\nexec $CMD" > /app/gogs/docker/s6/SOCAT_$NAME/run
chmod +x /app/gogs/docker/s6/SOCAT_$NAME/run
done
USED_PORT="80:443:22"
while read NAME ADDR PORT; do
if test -z "$NAME$ADDR$PORT"; then
continue
elif echo $USED_PORT | grep -E "(^|:)$PORT($|:)" > /dev/null; then
echo "init:socat | Can't bind linked container ${NAME} to localhost, port ${PORT} already in use" 1>&2
else
SERV_FOLDER=/app/gogs/docker/s6/SOCAT_${NAME}_${PORT}
mkdir -p ${SERV_FOLDER}
CMD="socat -ls TCP4-LISTEN:${PORT},fork,reuseaddr TCP4:${ADDR}:${PORT}"
echo -e "#!/bin/sh\nexec $CMD" > ${SERV_FOLDER}/run
chmod +x ${SERV_FOLDER}/run
USED_PORT="${USED_PORT}:${PORT}"
echo "init:socat | Linked container ${NAME} will be binded to localhost on port ${PORT}" 1>&2
fi
done << EOT
$(env | sed -En 's|(.*)_PORT_([0-9]+)_TCP=tcp://(.*):([0-9]+)|\1 \3 \4|p')
EOT
# Exec CMD or S6 by default if nothing present
if [ $# -gt 0 ];then

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