#!/bin/sh
# Render the profile's slurm.conf and, when it differs from the local one,
# install it and restart slurmctld. Runs from rollcall-controller-sync.timer.
set -eu
PROFILE=${PROFILE:-compute}
CONF=/etc/slurm/slurm.conf
new=$(mktemp)
trap 'rm -f "$new"' EXIT
/usr/local/bin/rollcall render "$PROFILE" etc/slurm/slurm.conf > "$new" || exit 0
if [ -f "$CONF" ] && grep -v '^# rendered by rollcall' "$new" | cmp -s - "$(grep -v '^# rendered by rollcall' "$CONF" > "$new.old" && echo "$new.old")"; then
  rm -f "$new.old"
  exit 0
fi
rm -f "$new.old"
install -m 0644 "$new" "$CONF"
systemctl try-restart slurmctld.service
echo "slurm.conf updated"