#!/usr/bin/with-contenv bash

echo "**** installing docker and docker compose ****"
if [ -f /usr/bin/apt ]; then
  DISTRONAME="ubuntu"
else
  DISTRONAME="alpine"
fi
ARCH=$(uname -m)
if [ -f "/docker-compose-${DISTRONAME}/docker-compose_${ARCH}" ] ; then
  echo "Copying over docker and docker-compose binaries"
  mv "/docker-compose-${DISTRONAME}/docker-compose_${ARCH}" /usr/local/bin/docker-compose
  mv "/docker-compose-${DISTRONAME}/docker_${ARCH}" /usr/local/bin/docker
  chmod +x /usr/local/bin/docker-compose
  rm -rf /docker-compose-ubuntu /docker-compose-alpine
else
  echo "**** docker and docker-compose already installed, skipping ****"
fi

if [ -S /var/run/docker.sock ]; then
  DOCKER_GID=$(stat -c '%g' "/var/run/docker.sock")
  if id -G abc | grep -qw "$DOCKER_GID"; then
    exit 0
  else
    DOCKER_NAME=$(getent group "${DOCKER_GID}" | awk -F: '{print $1}')
    if [ -z "${DOCKER_NAME}" ]; then
      DOCKER_NAME="dockergroup"
      groupadd -g "${DOCKER_GID}" "${DOCKER_NAME}"
    fi
    usermod -aG "${DOCKER_NAME}" abc
  fi
elif [ -n "$DOCKER_HOST" ]; then
  echo "**** /var/run/docker.sock is not mapped, therefore, docker client will only work with a remote docker service ****"
else
  echo "**** Please map /var/run/docker.sock for access to docker service on host. Alternatively you can manually define a remote host address with the docker cli option -H ****"
fi