[pve-devel] [PATCH network] sdn: factor out frr config generation and writing

[Thomas Lamprecht]

Am 05.02.25 um 17:13 schrieb Gabriel Goller:
> Previously the frr config generation and writing was only done in the
> evpn plugin. This means that it was not possible to create a standalone
> bgp and isis plugin without an evpn plugin in place. (The config would
> just never be written.) To fix this, factor out the frr generation and
> writing into a separate module and check if a frr-type-plugin is being
> used. This also paves the way for the fabrics, which would get the
> config from rust and then use this frr helper.
> 
> Signed-off-by: Gabriel Goller <g.goller at proxmox.com>
> ---
>  src/PVE/Network/SDN/Controllers.pm            |  47 ++-
>  src/PVE/Network/SDN/Controllers/BgpPlugin.pm  |  18 +-
>  src/PVE/Network/SDN/Controllers/EvpnPlugin.pm | 289 +----------------
>  src/PVE/Network/SDN/Controllers/Frr.pm        | 296 ++++++++++++++++++
>  src/PVE/Network/SDN/Controllers/IsisPlugin.pm |  18 +-
>  src/PVE/Network/SDN/Controllers/Makefile      |   2 +-
>  src/PVE/Network/SDN/Zones/EvpnPlugin.pm       |  15 +
>  7 files changed, 383 insertions(+), 302 deletions(-)
>  create mode 100644 src/PVE/Network/SDN/Controllers/Frr.pm
> 
> diff --git a/src/PVE/Network/SDN/Controllers.pm b/src/PVE/Network/SDN/Controllers.pm
> index fd7ad54ac38c..43f154b7338e 100644
> --- a/src/PVE/Network/SDN/Controllers.pm
> +++ b/src/PVE/Network/SDN/Controllers.pm
> @@ -12,6 +12,7 @@ use PVE::Cluster qw(cfs_read_file cfs_write_file cfs_lock_file);
>  use PVE::Network::SDN::Vnets;
>  use PVE::Network::SDN::Zones;
>  
> +use PVE::Network::SDN::Controllers::Frr;
>  use PVE::Network::SDN::Controllers::EvpnPlugin;
>  use PVE::Network::SDN::Controllers::BgpPlugin;
>  use PVE::Network::SDN::Controllers::IsisPlugin;
> @@ -148,10 +149,22 @@ sub reload_controller {
>  
>      return if !$controller_cfg;
>  
> +    my $frr_reload = 0;
> +
>      foreach my $id (keys %{$controller_cfg->{ids}}) {
>  	my $plugin_config = $controller_cfg->{ids}->{$id};
> -	my $plugin = PVE::Network::SDN::Controllers::Plugin->lookup($plugin_config->{type});
> -	$plugin->reload_controller();
> +	my $type = $plugin_config->{type};
> +	my @frr_types = ("bgp", "isis", "evpn");

instead of having those re-defined three times as array in the same
module you could use a module wide hash, that would make checking
easier too, like:

my $frr_types = { bgp => 1, isis => 1, evpn => 1 };

Looks OK otherwise, albeit I mostly skimmed it a few days ago and had
this lying around as draft, somebody else (@Stefan) checking would not
hurt.