I have been trying to get a simple health check in haproxy to work. But somehome the haproxy request is differently handled then a curl request, which generates a socket error in haproxy.
The health script echos these lines, with this config[2]
echo -ne "HTTP/1.1 200 OK\r\n"
echo -ne "Content-Length: 0\r\n"
echo -ne "\r\n"
exit 0
The curl request generates ok, haproxy generates socket error. The haproxy=yes, reuseport=yes do not seem to resolve anything. If stop dovecot and run "dovecot-health-check.sh | nc -l 192.168.10.46 5001" then the haproxy check is ok. So I guess the script is ok. But what is dovecot then doing with it's output when haproxy is requesting it?
[1] https://discourse.haproxy.org/t/httpck-on-bash-script-results-in-socket-erro...
[2] service health-check { executable = script -p /usr/local/sbin/dovecot-health-check.sh inet_listener health-check { port = 5001 haproxy = no reuse_port = no } }