136 lines
3.9 KiB
Nix
136 lines
3.9 KiB
Nix
{ config, self, pkgs, lib, ... }:
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{
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systemd.services.gitea-runner-nix-token = {
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wantedBy = [ "multi-user.target" ];
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after = [ "gitea.service" ];
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environment = {
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GITEA_CUSTOM = "/var/lib/gitea/custom";
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GITEA_WORK_DIR = "/var/lib/gitea";
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};
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script = ''
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set -euo pipefail
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token=$(${lib.getExe self.packages.${pkgs.hostPlatform.system}.gitea} actions generate-runner-token)
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echo "TOKEN=$token" > /var/lib/gitea-actions-runner/token
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'';
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unitConfig.ConditionPathExists = [ "!/var/lib/gitea-actions-runner/token" ];
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serviceConfig = {
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User = "gitea";
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Group = "gitea";
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StateDirectory = "gitea-actions-runner";
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Type = "oneshot";
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RemainAfterExit = true;
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};
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};
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systemd.services.gitea-runner-nix = {
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after = [ "gitea-runner-nix-token.service" ];
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requires = [ "gitea-runner-nix-token.service" ];
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# TODO: systemd confinment
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serviceConfig = {
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# Hardening (may overlap with DynamicUser=)
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# The following options are only for optimizing output of systemd-analyze
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AmbientCapabilities = "";
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CapabilityBoundingSet = "";
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# ProtectClock= adds DeviceAllow=char-rtc r
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DeviceAllow = "";
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NoNewPrivileges = true;
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PrivateDevices = true;
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PrivateMounts = true;
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PrivateTmp = true;
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PrivateUsers = true;
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ProtectClock = true;
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ProtectControlGroups = true;
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ProtectHome = true;
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ProtectHostname = true;
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ProtectKernelLogs = true;
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ProtectKernelModules = true;
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ProtectKernelTunables = true;
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ProtectSystem = "strict";
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RemoveIPC = true;
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RestrictNamespaces = true;
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RestrictRealtime = true;
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RestrictSUIDSGID = true;
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UMask = "0066";
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ProtectProc = "invisible";
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SystemCallFilter = [
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"~@clock"
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"~@cpu-emulation"
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"~@module"
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"~@mount"
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"~@obsolete"
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"~@raw-io"
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"~@reboot"
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"~capset"
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"~setdomainname"
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"~sethostname"
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];
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RestrictAddressFamilies = [ "AF_INET" "AF_INET6" "AF_UNIX" "AF_NETLINK" ];
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# Needs network access
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PrivateNetwork = false;
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# Cannot be true due to Node
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MemoryDenyWriteExecute = false;
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# The more restrictive "pid" option makes `nix` commands in CI emit
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# "GC Warning: Couldn't read /proc/stat"
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# You may want to set this to "pid" if not using `nix` commands
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ProcSubset = "all";
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# Coverage programs for compiled code such as `cargo-tarpaulin` disable
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# ASLR (address space layout randomization) which requires the
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# `personality` syscall
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# You may want to set this to `true` if not using coverage tooling on
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# compiled code
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LockPersonality = false;
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# Note that this has some interactions with the User setting; so you may
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# want to consult the systemd docs if using both.
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DynamicUser = true;
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# Environment = [
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# ];
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# BindPaths = [
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# "/nix/var/nix/daemon-socket/socket"
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# "/run/nscd/socket"
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# "/var/lib/drone"
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# ];
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};
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};
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services.gitea-actions-runner.instances.nix = {
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enable = true;
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name = "nix-runner";
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# take the git root url from the gitea config
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# only possible if you've also configured your gitea though the same nix config
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# otherwise you need to set it manually
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url = config.services.gitea.settings.server.ROOT_URL;
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# use your favourite nix secret manager to get a path for this
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tokenFile = "/var/lib/gitea-actions-runner/token";
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labels = [ "nix:host" ];
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hostPackages = with pkgs; [
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bash
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coreutils
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curl
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gawk
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gitMinimal
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gnused
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jq
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nixUnstable
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nodejs
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wget
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gnutar
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bash
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config.nix.package
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gzip
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];
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settings = {
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runner.envs = {
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HOME = "/var/lib/gitea-runner/nix";
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# unset the token so it doesn't leak into the runner
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TOKEN = "";
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PAGER = "cat";
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};
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};
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};
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}
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