#!/usr/bin/env bash
## healthcheck-lsphp.sh — liveness for the detached-lsphp sidecar.
##
## LSAPI is not FastCGI, so the cac-fpm `cgi-fcgi ... | grep pong` ping doesn't
## apply here. Minimum viable check (spec §5.1 fallback): the LSAPI listener is
## accepting TCP connections on :9000 AND at least one lsphp process is alive.
## A bound-but-wedged listener with no lsphp would fail the pgrep; a crashed
## listener fails the connect.

PORT="${LSPHP_HEALTH_PORT:-9000}"

# bash /dev/tcp connect test (bash is present on the litespeedtech base).
exec 3<>"/dev/tcp/127.0.0.1/${PORT}" 2>/dev/null || exit 1
exec 3>&- 3<&-

pgrep -x lsphp >/dev/null 2>&1 || exit 1
exit 0