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Gitlab runner #8

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04d53bc
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javdl Sep 24, 2024
c8cb70b
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javdl Sep 24, 2024
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50 changes: 50 additions & 0 deletions hosts/fu137.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,9 @@
boot.loader.systemd-boot.enable = true;
boot.loader.efi.canTouchEfiVariables = true;

boot.kernel.sysctl."net.ipv4.ip_forward" = true; # Docker
virtualisation.docker.enable = true;

networking.hostName = "fu137-4090-ML"; # Define your hostname.
# networking.wireless.enable = true; # Enables wireless support via wpa_supplicant.

Expand Down Expand Up @@ -161,6 +164,53 @@
# Or disable the firewall altogether.
# networking.firewall.enable = false;

# https://nixos.wiki/wiki/Gitlab_runner
# (see above) enabling ip_forward on the host machine is important for the docker container to be able to perform networking tasks (such as cloning the gitlab repo)
# the registrationConfigFile must contain the gitlab token for registering a gitlab-runner
services.gitlab-runner = {
enable = true;
services= {
# runner for building in docker via host's nix-daemon
# nix store will be readable in runner, might be insecure
nix = with lib;{
# File should contain at least these two variables:
# `CI_SERVER_URL`
# `REGISTRATION_TOKEN`
registrationConfigFile = toString ./path/to/ci-env; # 2
dockerImage = "alpine";
dockerVolumes = [
"/nix/store:/nix/store:ro"
"/nix/var/nix/db:/nix/var/nix/db:ro"
"/nix/var/nix/daemon-socket:/nix/var/nix/daemon-socket:ro"
];
dockerDisableCache = true;
preBuildScript = pkgs.writeScript "setup-container" ''
mkdir -p -m 0755 /nix/var/log/nix/drvs
mkdir -p -m 0755 /nix/var/nix/gcroots
mkdir -p -m 0755 /nix/var/nix/profiles
mkdir -p -m 0755 /nix/var/nix/temproots
mkdir -p -m 0755 /nix/var/nix/userpool
mkdir -p -m 1777 /nix/var/nix/gcroots/per-user
mkdir -p -m 1777 /nix/var/nix/profiles/per-user
mkdir -p -m 0755 /nix/var/nix/profiles/per-user/root
mkdir -p -m 0700 "$HOME/.nix-defexpr"
. ${pkgs.nix}/etc/profile.d/nix-daemon.sh
${pkgs.nix}/bin/nix-channel --add https://nixos.org/channels/nixos-20.09 nixpkgs # 3
${pkgs.nix}/bin/nix-channel --update nixpkgs
${pkgs.nix}/bin/nix-env -i ${concatStringsSep " " (with pkgs; [ nix cacert git openssh ])}
'';
environmentVariables = {
ENV = "/etc/profile";
USER = "root";
NIX_REMOTE = "daemon";
PATH = "/nix/var/nix/profiles/default/bin:/nix/var/nix/profiles/default/sbin:/bin:/sbin:/usr/bin:/usr/sbin";
NIX_SSL_CERT_FILE = "/nix/var/nix/profiles/default/etc/ssl/certs/ca-bundle.crt";
};
tagList = [ "nix" ];
};
};
};

# This value determines the NixOS release from which the default
# settings for stateful data, like file locations and database versions
# on your system were taken. It‘s perfectly fine and recommended to leave
Expand Down
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