Something similar came up today on a Trusty instance, the WARNING lines
are possibly relevant here. To be clear, no certificates were involved
in this case, but I did catch the old processes still running after a
reload:
ubuntu@foo:~$ ps auxfwwww | grep haproxy
ubuntu 10790 0.0 0.0 10480 932 pts/2 S+ 07:20 0:00
\_ grep --color=auto haproxy
haproxy 15581 0.0 0.0 21424 2048 ? Ss May23 1:36
/usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg -p /var/run/haproxy.pid -D -sf
15502
ubuntu@foo:~$ sudo service haproxy reload
* Reloading haproxy haproxy
[WARNING] 143/072015
(10813) : config : 'option httplog' not usable with frontend 'foo-lb-2-80'
(needs 'mode http'). Falling back to 'option tcplog'.
[WARNING] 143/072015 (10815) : config : 'option httplog' not usable with
frontend 'foo-lb-2-80' (needs 'mode http'). Falling back to 'option tcplog'.
[ OK ]
ubuntu@foo:~$ ps auxfwwww | grep haproxy
ubuntu 10845 0.0 0.0 10480 932 pts/2 S+ 07:20 0:00
\_ grep --color=auto haproxy
haproxy 15581 0.0 0.0 21424 2048 ? Ss May23 1:36
/usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg -p /var/run/haproxy.pid -D -sf
15502
haproxy 10816 0.0 0.0 21016 1536 ? Ss 07:20 0:00
/usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg -p /var/run/haproxy.pid -D -sf
15581
ubuntu@juju-prodstack-ols-assertions-sign-machine-14:~$
In this case though, neither a 'service haproxy restart' nor a
stop+start would kill the old process, I had to send it a TERM signal in
the end.
I understand that Trusty is no longer supported outside of ESM - if this
isn't helpful, I'll delete and update if/when I can reproduce on Xenial
or later.
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https://bugs.launchpad.net/bugs/1828496
Title:
service haproxy reload sometimes fails to pick up new TLS certificates
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