echo "${_group}Ensuring proper PostgreSQL version ..."

if [[ -n "$($CONTAINER_ENGINE volume ls -q --filter name=sentry-postgres)" && "$($CONTAINER_ENGINE run --rm -v sentry-postgres:/db busybox cat /db/PG_VERSION 2>/dev/null)" == "9.6" ]]; then
  $CONTAINER_ENGINE volume rm sentry-postgres-new || true
  # If this is Postgres 9.6 data, start upgrading it to 14.0 in a new volume
  $CONTAINER_ENGINE run --rm \
    -v sentry-postgres:/var/lib/postgresql/9.6/data \
    -v sentry-postgres-new:/var/lib/postgresql/14/data \
    tianon/postgres-upgrade:9.6-to-14

  # Get rid of the old volume as we'll rename the new one to that
  $CONTAINER_ENGINE volume rm sentry-postgres
  $CONTAINER_ENGINE volume create --name sentry-postgres
  # There's no rename volume in Docker so copy the contents from old to new name
  # Also append the `host all all all trust` line as `tianon/postgres-upgrade:9.6-to-14`
  # doesn't do that automatically.
  $CONTAINER_ENGINE run --rm -v sentry-postgres-new:/from -v sentry-postgres:/to alpine ash -c \
    "cd /from ; cp -av . /to ; echo 'host all all all trust' >> /to/pg_hba.conf"
  # Finally, remove the new old volume as we are all in sentry-postgres now.
  $CONTAINER_ENGINE volume rm sentry-postgres-new
  echo "Re-indexing due to glibc change, this may take a while..."
  echo "Starting up new PostgreSQL version"
  start_service_and_wait_ready postgres

  # Wait for postgres
  RETRIES=5
  until $dc exec postgres psql -U postgres -c "select 1" >/dev/null 2>&1 || [ $RETRIES -eq 0 ]; do
    echo "Waiting for postgres server, $((RETRIES--)) remaining attempts..."
    sleep 1
  done

  # VOLUME_NAME is the same as container name
  # Reindex all databases and their system catalogs which are not templates
  DBS=$($dc exec postgres psql -qAt -U postgres -c "SELECT datname FROM pg_database WHERE datistemplate = false;")
  for db in ${DBS}; do
    echo "Re-indexing database: ${db}"
    $dc exec postgres psql -qAt -U postgres -d ${db} -c "reindex system ${db}"
    $dc exec postgres psql -qAt -U postgres -d ${db} -c "reindex database ${db};"
  done

  $dc stop postgres
fi

echo "${_endgroup}"