Haproxy logs not visible in Docker stdout when run as Daemon

Help!
1

Howdy;

We run haproxytech/haproxy-ubuntu:2.8 in a docker container. It’s launched by an entrypoint script that has to do other jobs every X amount of time and then tell haproxy to restart so that it can load up new SSL certs and updated map files:

entrypoint.sh

#!/bin/bash

function sync_maps_and_certs ()
{
# go grab the updated files   
}

function restart_haproxy ()
{
    haproxy \
        -D \
        -f /usr/local/etc/haproxy/haproxy.cfg \
        -p /run/haproxy.pid \
        -x /var/run/haproxy.sock \
        -sf $(cat /run/haproxy.pid)
}

while true
do
    sync_maps_and_certs || echo "problem syncing"
    restart_haproxy || echo "problem restarting haproxy ... oh no!"
    sleep 600
done

This works, but when running haproxy in Daemon mode ( -D ) we no longer see the haproxy logs in stdout in the Docker container. If I remove -D it works (but then the script loop can’t continue because it’s foregrounded) and if I background the haproxy process with a trailing & the old haproxy processes don’t seem to get the SIGTERM and we get a lot of processes built up over time.

I’d prefer to run in daemon mode and still get my logs to show up in the container stdout. Any suggestions?