docker-entrypoint.sh

#!/bin/bash
bundle check || bundle install --jobs 4 --retry 5

pids=( server.pid realtime_updater.pid )
for file in "${pids[@]}"
do
  path="tmp/pids/$file"
  if [ -f $path ]; then
    rm $path
  fi
done

./bin/wait-for-mysql.sh

echo "[INFO] Running in app: $@"
exec "$@"

wait-for-mysql.sh

#!/bin/bash
echo "[INFO] Waiting for mysql"

until mysql -h"$MYSQL_HOST" -P3306 -u"$MYSQL_ROOT_USER" -p"$MYSQL_ROOT_PASSWORD" -e 'show databases;'; do
  >&2 printf "."
  sleep 1
done

echo "[INFO] Mysql ready"