Adds a new method to the SDN module that is responsible for generating
and writing the FRR configuration for all SDN plugins combined. It
utilizes the newly introduced FRR helper as well as the newly
introduced API for the controllers to generate an frr_config instead
of generating the configuration in the controller directly. It can
also reload the FRR daemon.

Change the tests to use this new API as well, so they use the new
methods for generating the frr configuration. They previously used a
different code-path for generating the FRR config compared to the
actual worker task, so this also ensures that tests validate the
configuration that *actually* gets generated.

Co-authored-by: Gabriel Goller <g.gol...@proxmox.com>
Signed-off-by: Stefan Hanreich <s.hanre...@proxmox.com>
---
 src/PVE/Network/SDN.pm         | 45 ++++++++++++++++++++++++++++++----
 src/PVE/Network/SDN/Fabrics.pm | 13 ++++++++++
 src/test/run_test_zones.pl     |  9 +++----
 3 files changed, 57 insertions(+), 10 deletions(-)

diff --git a/src/PVE/Network/SDN.pm b/src/PVE/Network/SDN.pm
index c9c45b1..382147f 100644
--- a/src/PVE/Network/SDN.pm
+++ b/src/PVE/Network/SDN.pm
@@ -20,6 +20,8 @@ use PVE::Network::SDN::Zones;
 use PVE::Network::SDN::Controllers;
 use PVE::Network::SDN::Subnets;
 use PVE::Network::SDN::Dhcp;
+use PVE::Network::SDN::Frr;
+use PVE::Network::SDN::Fabrics;
 
 my $running_cfg = "sdn/.running-config";
 
@@ -226,13 +228,46 @@ sub generate_zone_config {
     PVE::Network::SDN::Zones::write_etc_network_config($raw_config);
 }
 
-sub generate_controller_config {
-    my ($reload) = @_;
+=head3 generate_frr_raw_config(\%running_config, \%fabric_config)
+
+Generates the raw frr config (as documented in the C<PVE::Network::SDN::Frr>
+module) for all SDN plugins combined.
+
+If provided, uses the passed C<\%running_config> und C<\%fabric_config> to 
avoid
+re-parsing and re-reading both configurations. If not provided, this function
+will obtain them via the SDN and SDN::Fabrics modules and then generate the FRR
+configuration.
+
+=cut
+
+sub generate_frr_raw_config {
+    my ($running_config, $fabric_config) = @_;
+
+    $running_config = PVE::Network::SDN::running_config() if !$running_config;
+    $fabric_config = PVE::Network::SDN::Fabrics::config(1) if !$fabric_config;
+
+    my $frr_config = {};
+    PVE::Network::SDN::Controllers::generate_frr_config($frr_config, 
$running_config);
+    PVE::Network::SDN::Frr::append_local_config($frr_config);
+
+    my $raw_config = PVE::Network::SDN::Frr::to_raw_config($frr_config);
+
+    my $fabrics_config = 
PVE::Network::SDN::Fabrics::generate_frr_raw_config($fabric_config);
+    push @$raw_config, @$fabrics_config;
+
+    return $raw_config;
+}
+
+sub generate_frr_config {
+    my ($apply) = @_;
+
+    my $running_config = PVE::Network::SDN::running_config();
+    my $fabric_config = PVE::Network::SDN::Fabrics::config(1);
 
-    my $raw_config = 
PVE::Network::SDN::Controllers::generate_controller_config();
-    PVE::Network::SDN::Controllers::write_controller_config($raw_config);
+    my $raw_config = 
PVE::Network::SDN::generate_frr_raw_config($running_config, $fabric_config);
+    PVE::Network::SDN::Frr::write_raw_config($raw_config);
 
-    PVE::Network::SDN::Controllers::reload_controller() if $reload;
+    PVE::Network::SDN::Frr::apply() if $apply;
 }
 
 sub generate_dhcp_config {
diff --git a/src/PVE/Network/SDN/Fabrics.pm b/src/PVE/Network/SDN/Fabrics.pm
index 77da6ae..0a98f59 100644
--- a/src/PVE/Network/SDN/Fabrics.pm
+++ b/src/PVE/Network/SDN/Fabrics.pm
@@ -46,4 +46,17 @@ sub write_config {
     cfs_write_file("sdn/fabrics.cfg", $config->to_raw(), 1);
 }
 
+sub generate_frr_raw_config {
+    my ($fabric_config) = @_;
+
+    my @raw_config = ();
+
+    my $nodename = PVE::INotify::nodename();
+
+    my $frr_config = $fabric_config->get_frr_raw_config($nodename);
+    push @raw_config, @$frr_config if @$frr_config;
+
+    return \@raw_config;
+}
+
 1;
diff --git a/src/test/run_test_zones.pl b/src/test/run_test_zones.pl
index e506bea..4137da6 100755
--- a/src/test/run_test_zones.pl
+++ b/src/test/run_test_zones.pl
@@ -140,18 +140,17 @@ foreach my $test (@tests) {
 
     if ($sdn_config->{controllers}) {
        my $expected = read_file("./$test/expected_controller_config");
-       my $controller_rawconfig = "";
+       my $config = "";
 
        eval {
-           my $config = 
PVE::Network::SDN::Controllers::generate_controller_config();
-           $controller_rawconfig =
-               
PVE::Network::SDN::Controllers::generate_controller_rawconfig($config);
+           my $raw_config = PVE::Network::SDN::generate_frr_raw_config();
+           $config = PVE::Network::SDN::Frr::raw_config_to_string($raw_config);
        };
        if (my $err = $@) {
            diag("got unexpected error - $err");
            fail($name);
        } else {
-           is($controller_rawconfig, $expected, $name);
+           is($config, $expected, $name);
        }
     }
 }
-- 
2.39.5


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