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Add tests for daemon with cgroups
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3 changed files with 52 additions and 0 deletions
40
tests/nixos/cgroups/default.nix
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40
tests/nixos/cgroups/default.nix
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@ -0,0 +1,40 @@
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{ nixpkgs, ... }:
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{
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name = "cgroups";
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nodes =
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{
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host =
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{ config, pkgs, ... }:
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{ virtualisation.additionalPaths = [ pkgs.stdenvNoCC ];
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nix.extraOptions =
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''
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extra-experimental-features = nix-command auto-allocate-uids cgroups
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extra-system-features = uid-range
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'';
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nix.settings.use-cgroups = true;
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nix.nixPath = [ "nixpkgs=${nixpkgs}" ];
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};
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};
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testScript = { nodes }: ''
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start_all()
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host.wait_for_unit("multi-user.target")
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# Start build in background
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host.execute("NIX_REMOTE=daemon nix build --auto-allocate-uids --file ${./hang.nix} >&2 &")
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service = "/sys/fs/cgroup/system.slice/nix-daemon.service"
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# Wait for cgroups to be created
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host.succeed(f"until [ -e {service}/nix-daemon ]; do sleep 1; done", timeout=30)
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host.succeed(f"until [ -e {service}/nix-build-uid-* ]; do sleep 1; done", timeout=30)
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# Check that there aren't processes where there shouldn't be, and that there are where there should be
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host.succeed(f'[ -z "$(cat {service}/cgroup.procs)" ]')
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host.succeed(f'[ -n "$(cat {service}/nix-daemon/cgroup.procs)" ]')
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host.succeed(f'[ -n "$(cat {service}/nix-build-uid-*/cgroup.procs)" ]')
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'';
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}
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10
tests/nixos/cgroups/hang.nix
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10
tests/nixos/cgroups/hang.nix
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{ }:
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with import <nixpkgs> {};
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runCommand "hang"
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{ requiredSystemFeatures = "uid-range";
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}
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''
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sleep infinity
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''
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@ -157,4 +157,6 @@ in
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s3-binary-cache-store = runNixOSTestFor "x86_64-linux" ./s3-binary-cache-store.nix;
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fsync = runNixOSTestFor "x86_64-linux" ./fsync.nix;
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cgroups = runNixOSTestFor "x86_64-linux" ./cgroups;
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}
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