pgpool/entrypoint.sh

#!/usr/bin/env bash

set -Eeo pipefail

sudo service ssh start

{
  printf "listen_addresses = '*'\n"
  printf "port = 5432\n"
  printf "unix_socket_directories = '/run'\n"
  printf "pcp_socket_dir = '/run'\n"
  printf "enable_pool_hba = off\n"
  printf "allow_clear_text_frontend_auth = on\n"
  printf "process_management_mode = 'dynamic'\n"
  printf "backend_clustering_mode = 'raw'\n"
  printf "health_check_timeout = 5\n"
  printf "health_check_period = 5\n"
  printf "health_check_user = 'pgpool'\n"
  printf "health_check_password = '%s'\n" "$PGPOOL_PASSWORD"

  IFS=':'
  n=0
  for backend in $PGPOOL_BACKEND
  do
    printf "backend_hostname%d = '%s'\n" $n $backend
    printf "backend_port%d = 5432\n" $n
  ((n+=1))
  done
} > /etc/pgpool2/pgpool.conf

sudo /usr/sbin/pgpool

while true
do
  echo "$(date)"
  sleep 3600
done