tree 72e6c8bb108099ccc3211dd1d2e5eabdcdb0e411
parent 45ad91efa3c7fa4948bd67f4cacff6dca7e178c2
author Apollon Oikonomopoulos <apoikos@debian.org> 1397741968 +0300
committer Willy Tarreau <w@1wt.eu> 1397751071 +0200
encoding latin1

MINOR: systemd wrapper: re-execute on SIGUSR2

Re-execute the systemd wrapper on SIGUSR2 and before reloading HAProxy,
making it possible to load a completely new version of HAProxy
(including a new version of the systemd wrapper) gracefully.
Since the wrapper accepts no command-line arguments of its own,
re-execution is signaled using the HAPROXY_SYSTEMD_REEXEC environment
variable.

This is primarily intended to help seamless upgrades of distribution
packages.