#!/bin/sh
# Resilient launcher for fmcd.
#
# fmcd requires >=1 federation to boot — if the default federation is
# unreachable at first boot it exits non-zero. Rather than let the container
# crash-loop (and on a node, spam restarts), retry here with a backoff so the
# join happens in the background once the federation becomes reachable. Once
# fmcd is up it runs forever; this loop only re-runs it on exit.
#
# All config comes from FMCD_* env (FMCD_ADDR, FMCD_MODE, FMCD_DATA_DIR,
# FMCD_INVITE_CODE, FMCD_PASSWORD), so fmcd needs no CLI args here.
set -u
while true; do
    fmcd || true
    echo "[fmcd-run] fmcd exited (federation unreachable?); retrying in 30s" >&2
    sleep 30
done