Web container bash variable $PLATFORM_PORT_80_TCP_ADDR about mattermost-docker

[eungjun-yi]

I haven't find the best way to get the port. I guess setting the port as an environment variable in docker-compose.yml might be an easy solution.

environment:
 - PLATFORM_PORT_80_TCP_ADDR=80

[Psidium]

Okay, I managed to make a 'fallback' for this issue in my case:

if [ -z "$PLATFORM_PORT_80_TCP_ADDR" ]
then
  echo "can't find platform_port_80_tcp_addr" > /dev/stderr
  ping -c 7 platform &> /dev/null
  if [ $? -ne 0 ]
  then
    echo "can't connect to 'platform'" > /dev/stderr
    exit 7
  fi
  PLATFORM_PORT_80_TCP_ADDR=$(getent hosts platform | awk '{ print $1 }')
  PLATFORM_PORT_80_TCP_PORT=80
fi

but I still wonder what would be the right behaviour...

[eungjun-yi]

PLATFORM_PORT_80_TCP_ADDR variable comes from link option of docker-compose but I think it may not work in version 2 which you are using.

Environment variables will only be populated if you’re using the legacy version 1 Compose file format.

-- https://docs.docker.com/compose/link-env-deprecated/