50 lines
1.4 KiB
Nix
50 lines
1.4 KiB
Nix
{
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config,
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pkgs,
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lib,
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...
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}: {
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# THE FOLLOWING CODE BLOCK IS FOR COPYING TO OTHER CONFIGURATIONS, NOT FOR THIS FILE
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nix.distributedBuilds = true;
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nix.buildMachines = [
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{
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hostName = "nixos-build-machine";
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system = "x86_64-linux";
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sshUser = "nixremote";
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sshKey = "/root/.ssh/nixremote";
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maxJobs = 4;
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speedFactor = 2;
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supportedFeatures = ["nixos-test" "benchmark" "big-parallel" "kvm"];
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}
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];
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# Generate SSH key for remote building
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systemd.services.generate-nixremote-key = {
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description = "Generate SSH key for remote Nix builds";
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wantedBy = ["multi-user.target"];
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serviceConfig = {
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Type = "oneshot";
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RemainAfterExit = true;
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};
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script = ''
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if [ ! -f /root/.ssh/nixremote ]; then
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${pkgs.openssh}/bin/ssh-keygen -t ed25519 -f /root/.ssh/nixremote -N "" -C "nix-remote-builder"
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fi
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'';
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};
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programs.ssh.extraConfig = ''
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Host nixos-build-machine
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HostName 10.1.1.3
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IdentitiesOnly yes
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IdentityFile /root/.ssh/nixremote
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User nixremoteStrictHostKeyChecking accept-new
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'';
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# Manual step required: After rebuilding the client, copy /root/.ssh/nixremote.pub
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# from the client to the build machine's users.users.nixremote.openssh.authorizedKeys.keys list,
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# then rebuild the build machine.
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# i.e on the client: run "cat /root.ssh/nixremote.pub"
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# and copy the output to the build machine's configuration.nix
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}
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