Drift/pvv-nixos-config
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pvv-nixos-config
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fix-openstack-networking (!47) 

Fix networking in Openstack.

This rewrites the systemd-networkd config, fixing both dhcp and manual address/route configurations.
Now, everything should behave predictably, routing NTNU-internal and NTNU-global addresses separately and properly across both ipv4 and ipv6.

Reviewed-on: #47
This commit is contained in:
Felix Albrigtsen 2024-07-31 11:23:00 +02:00
parent c7797bdd04
commit 2030d4de39
2 changed files with 41 additions and 4 deletions
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24
hosts/ildkule/configuration.nix
View File

@ -20,10 +20,26 @@
zramSwap.enable = true;
networking.hostName = "ildkule"; # Define your hostname.
systemd.network.networks."30-all" = values.defaultNetworkConfig // {
matchConfig.Name = "en*";
DHCP = "yes";
gateway = [ ];
# Main connection, using the global/floatig IP, for communications with the world
systemd.network.networks."30-ntnu-global" = values.openstackGlobalNetworkConfig // {
matchConfig.Name = "ens4";
# Add the global addresses in addition to the local address learned from DHCP
addresses = [
{ addressConfig.Address = "${values.hosts.ildkule.ipv4_global}/32"; }
{ addressConfig.Address = "${values.hosts.ildkule.ipv6_global}/128"; }
];
};
# Secondary connection only for use within the university network
systemd.network.networks."40-ntnu-internal" = values.openstackLocalNetworkConfig // {
matchConfig.Name = "ens3";
# Add the ntnu-internal addresses in addition to the local address learned from DHCP
addresses = [
{ addressConfig.Address = "${values.hosts.ildkule.ipv4}/32"; }
{ addressConfig.Address = "${values.hosts.ildkule.ipv6}/128"; }
];
};
# List packages installed in system profile

21
values.nix
View File

@ -73,4 +73,25 @@ in rec {
DHCP = "no";
};
openstackGlobalNetworkConfig = {
networkConfig.IPv6AcceptRA = "yes";
dns = [ "129.241.0.200" "129.241.0.201" ];
domains = [ "pvv.ntnu.no" "pvv.org" ];
DHCP = "yes";
};
openstackLocalNetworkConfig = {
networkConfig.IPv6AcceptRA = "no";
dns = [ "129.241.0.200" "129.241.0.201" ];
domains = [ "pvv.ntnu.no" "pvv.org" ];
DHCP = "yes";
# Only use this network for link-local networking, not global/default routes
dhcpV4Config.UseRoutes = "no";
routes = [
{ routeConfig = { Destination = "10.0.0.0/8"; Gateway = "_dhcp4"; }; }
];
linkConfig.RequiredForOnline = "no";
};
}