!tCyGickeVqkHsYjWnh:nixos.org

NixOS Networking

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Declaratively manage your switching, routing, wireless, tunneling and more. | Don't rely on `networking.*` for interface and routing setup, use systemd-networkd, ifstate or NetworkManager instead. | Set `SYSTEMD_LOG_LEVEL=debug` to debug networking issues with networkd | No bad nft puns, please. | Room recommendations: #sysops:nixos.org254 Servers

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28 Jul 2025
@magic_rb:matrix.redalder.orgmagic_rb https://git.sr.ht/~magic_rb/uk3s.nix/tree/master/item/nixos/modules/uk3s.nix#L341 this specifically is what you need to run k3s in a nspawn container 16:18:40
@magic_rb:matrix.redalder.orgmagic_rbor itll complain16:18:44
@magic_rb:matrix.redalder.orgmagic_rbthe two env vars are reverse engineered from systemd source code and a lot of trial and error, im still using this setup but im hoping to migrate away, not from nixng+ucontainer but throw out the k3s16:19:26
@zhaofeng:zhaofeng.liZhaofeng Liok, so k3s and flannel basically just work inside a network namespace, good to know16:23:35
@zhaofeng:zhaofeng.liZhaofeng Ligoing to attempt kind of the same thing but with cilium (probably not soon tbh)16:25:47

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