entrypoint.sh

#!/bin/bash

# Wait until Consul can be contacted
until curl -s -k ${CONSUL_HTTP_ADDR}/v1/status/leader | grep 8300; do
  echo "Waiting for Consul to start"
  sleep 1
done

# If we do not need to register a service just run the command
if [ ! -z "$SERVICE_CONFIG" ]; then
  # register the service with consul
  echo "Registering service with consul $SERVICE_CONFIG"
  consul services register ${SERVICE_CONFIG}
  
  exit_status=$?
  if [ $exit_status -ne 0 ]; then
    echo "### Error writing service config: $file ###"
    cat $file
    echo ""
    exit 1
  fi
  
  # make sure the service deregisters when exit
  trap "consul services deregister ${SERVICE_CONFIG}" SIGINT SIGTERM EXIT
fi

# register any central config from individual files
if [ ! -z "$CENTRAL_CONFIG" ]; then
  IFS=';' read -r -a configs <<< ${CENTRAL_CONFIG}

  for file in "${configs[@]}"; do
    echo "Writing central config $file"
    consul config write $file
     
    exit_status=$?
    if [ $exit_status -ne 0 ]; then
      echo "### Error writing central config: $file ###"
      cat $file
      echo ""
      exit 1
    fi
  done
fi

# register any central config from a folder
if [ ! -z "$CENTRAL_CONFIG_DIR" ]; then
  for file in `ls -v $CENTRAL_CONFIG_DIR/*`; do 
    echo "Writing central config $file"
    consul config write $file
    echo ""

    exit_status=$?
    if [ $exit_status -ne 0 ]; then
      echo "### Error writing central config: $file ###"
      cat $file
      echo ""
      exit 1
    fi
  done
fi

# haiut: begin
# dirty hack - for Docker-Compose & Consul demo

RINETD_BIN=/usr/sbin/rinetd
RINETD_CNF=/etc/rinetd.conf
if [ -f ${RINETD_BIN} -a -f ${RINETD_CNF} ]; then
        CNF=`cat ${RINETD_CNF}`
        echo "Running admin port forwarding as: ${CNF}"
        ${RINETD_BIN}
else
        echo "Cannot find ${RINETD_BIN} or ${RINETD_CNF} - skipping admin port forwarding it"
fi
# haiut: end

# Run the command if specified
if [ "$#" -ne 0 ]; then
  echo "Running command: $@"
  exec "$@" &

  # Block using tail so the trap will fire
  tail -f /dev/null &
  PID=$!
  wait $PID
fi