[PATCH pmg-api] fix #8231: api: transport: regenerate postfix config on changes

[Carsten Haerle <carsten.haerle@straightec.de>]

Transport hosts configured as IP address are added to postfix'
mynetworks, so they may relay through the internal port. Adding,
changing or removing a transport only ran postmap on the transport map,
though, so main.cf and thus mynetworks were only updated with the next
full config sync. Until then a new transport host could not relay, and
a removed one still could.

Regenerate the postfix configuration and reload postfix if it changed,
as is already done for changes of the trusted networks.
rewrite_config_postfix() also runs postmap on the transport map.

Signed-off-by: Carsten Haerle <carsten.haerle@straightec.de>
---
 src/PMG/API2/Transport.pm | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/src/PMG/API2/Transport.pm b/src/PMG/API2/Transport.pm
index c592518..937f99d 100644
--- a/src/PMG/API2/Transport.pm
+++ b/src/PMG/API2/Transport.pm
@@ -12,6 +12,7 @@ use PVE::RESTHandler;
 use PVE::INotify;
 
 use PMG::Config;
+use PMG::Utils;
 
 use base qw(PVE::RESTHandler);
 
@@ -127,7 +128,11 @@ __PACKAGE__->register_method({
 
             PVE::INotify::write_file('transport', $tmap);
 
-            PMG::Config::postmap_pmg_transport();
+            # transport hosts given as IP address are part of mynetworks
+            my $cfg = PMG::Config->new();
+            if ($cfg->rewrite_config_postfix()) {
+                PMG::Utils::service_cmd('postfix', 'reload');
+            }
         };
 
         PMG::Config::lock_config($code, "add transport map entry failed");
@@ -247,7 +252,11 @@ __PACKAGE__->register_method({
 
             PVE::INotify::write_file('transport', $tmap);
 
-            PMG::Config::postmap_pmg_transport();
+            # transport hosts given as IP address are part of mynetworks
+            my $cfg = PMG::Config->new();
+            if ($cfg->rewrite_config_postfix()) {
+                PMG::Utils::service_cmd('postfix', 'reload');
+            }
         };
 
         PMG::Config::lock_config($code, "update transport map entry failed");
@@ -289,7 +298,11 @@ __PACKAGE__->register_method({
 
             PVE::INotify::write_file('transport', $tmap);
 
-            PMG::Config::postmap_pmg_transport();
+            # transport hosts given as IP address are part of mynetworks
+            my $cfg = PMG::Config->new();
+            if ($cfg->rewrite_config_postfix()) {
+                PMG::Utils::service_cmd('postfix', 'reload');
+            }
         };
 
         PMG::Config::lock_config($code, "delete transport map entry failed");
-- 
2.53.0