pre-start.sh.erb

#!/bin/bash -exu

set +u
source /var/vcap/packages/postgres-common/utils.sh
set -u
source /var/vcap/jobs/postgres/bin/pgconfig.sh
source /var/vcap/jobs/postgres/bin/utils.sh

function upgrade(){
  if [ -d $DATA_DIR -a -f $POSTGRES_UPGRADE_LOCK ]; then
    echo "FAIL: DB upgrade stopped in the middle, manual intervention required, quitting..."
    exit 1
  fi

  if [ -d "${DATA_DIR_OLD}" -a -f "${DATA_DIR_OLD}/postgresql.conf" ]; then
    # UPGRADING
    if is_major; then
      run_major_upgrade
    else
      run_minor_upgrade
    fi
  else
    init_data_dir
  fi
}

function main() {
  echo "Checking PostgreSQL is stopped"
  check_pidfile "${PIDFILE}" 30
  mkdir -p "${PG_STORE_DIR}"
  chown -R vcap:vcap "${PG_STORE_DIR}"
  chmod 700 "${PG_STORE_DIR}"

  for dir in ${pgversion_older} ${pgversion_old} ${pgversion_current} postgres-previous; do
    if [[ -d "${STORE_DIR}/${dir}" ]]; then
      if [[ -f "${STORE_DIR}/${dir}/postgresql.conf" ]]; then
        mv "${STORE_DIR}/${dir}" "${PG_STORE_DIR}"
        chown -R vcap:vcap "${PG_STORE_DIR}/${dir}"
        chmod 700 "${PG_STORE_DIR}/${dir}"
      else
        rm -r ${STORE_DIR}/${dir}
      fi
    fi
  done

  mkdir -p "${LOG_DIR}"
  chown -R vcap:vcap "${LOG_DIR}"

  mkdir -p "${RUN_DIR}"
  chown -R vcap:vcap "${RUN_DIR}"

  PG_CERTS_DIR=${JOB_DIR}/config/certificates
  chmod -R 600 ${PG_CERTS_DIR}/*
  chown -R vcap:vcap ${PG_CERTS_DIR}/*

  sysctl -w "kernel.shmmax=284934144"
}

main
upgrade