[pmg-devel] [PATCH pmg-api v5 02/11] pmg-smtp-filter: move pid file into /run/pmg-smtp-filter

[Maximiliano Sandoval]

We use systemd's RuntimeDirectory to ensure the directory exists when needed.

We also set $opt_pidfile using PIDFILE, see
https://www.freedesktop.org/software/systemd/man/latest/systemd.exec.html#%24PIDFILE.

Signed-off-by: Maximiliano Sandoval <m.sandoval at proxmox.com>
---
 debian/pmg-smtp-filter.service | 3 ++-
 src/PMG/Utils.pm               | 2 +-
 src/bin/pmg-smtp-filter        | 2 +-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/debian/pmg-smtp-filter.service b/debian/pmg-smtp-filter.service
index cbf2d6f3..c887dc2d 100644
--- a/debian/pmg-smtp-filter.service
+++ b/debian/pmg-smtp-filter.service
@@ -11,10 +11,11 @@ ExecStart=/usr/bin/pmg-smtp-filter
 KillMode=mixed
 TimeoutStopSec=40
 ExecReload=/bin/kill -HUP $MAINPID
-PIDFile=/run/pmg-smtp-filter.pid
+PIDFile=/run/pmg-smtp-filter/pmg-smtp-filter.pid
 Type=forking
 Restart=on-abort
 RestartSec=10
+RuntimeDirectory=pmg-smtp-filter
 
 [Install]
 WantedBy=multi-user.target
diff --git a/src/PMG/Utils.pm b/src/PMG/Utils.pm
index 3e7adbb6..07a6c9be 100644
--- a/src/PMG/Utils.pm
+++ b/src/PMG/Utils.pm
@@ -1515,7 +1515,7 @@ sub get_pg_server_version {
 
 sub reload_smtp_filter {
 
-    my $pid_file = '/run/pmg-smtp-filter.pid';
+    my $pid_file = '/run/pmg-smtp-filter/pmg-smtp-filter.pid';
     my $pid = PVE::Tools::file_read_firstline($pid_file);
 
     return 0 if !$pid;
diff --git a/src/bin/pmg-smtp-filter b/src/bin/pmg-smtp-filter
index 32bad7b8..fcaaffc5 100755
--- a/src/bin/pmg-smtp-filter
+++ b/src/bin/pmg-smtp-filter
@@ -80,7 +80,7 @@ if (!GetOptions(
     exit (-1);
 }
 
-$opt_pidfile = "/run/${prog_name}.pid" if !$opt_pidfile;
+$opt_pidfile = $ENV{'PIDFILE'} if !$opt_pidfile;
 
 my $max_servers = 1;
 my $min_servers = 1;
-- 
2.39.5