neiam /waxx

#!/bin/sh
set -eu

cd -P -- "$(dirname -- "$0")"

# Auto-migrate on boot unless explicitly disabled. `Ecto.Migrator` takes a
# Postgres advisory lock while migrating, so when several replicas start at
# once (rolling update) they serialize safely: the first applies the pending
# migrations and the rest find nothing to do. Migrations run in a separate
# short-lived node and `set -e` aborts the boot if they fail, so we never
# start a server against a half-migrated schema.
#
# Set WAXX_SKIP_MIGRATIONS=1 to opt out — e.g. if you'd rather run them from
# a dedicated Job / initContainer.
if [ "${WAXX_SKIP_MIGRATIONS:-0}" != "1" ]; then
  echo "[server] running pending migrations" >&2
  ./waxx eval Waxx.Release.migrate
fi

PHX_SERVER=true exec ./waxx start