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https://github.com/privatevoid-net/nix-super.git
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883092e3f7
It was disabled inc6953d1ff6because a recent Nixpkgs bump brought in a new systemd which changed how systemd-nspawn worked. As far as I can tell, the issue was caused by this upstream systemd commit:b71a0192c0Bind-mounting the host's `/sys` and `/proc` into the container's `/run/host/{sys,proc}` fixes the issue and allows the test to succeed.
63 lines
2.7 KiB
Nix
63 lines
2.7 KiB
Nix
# Test whether we can run a NixOS container inside a Nix build using systemd-nspawn.
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{ lib, nixpkgs, ... }:
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{
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name = "containers";
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nodes =
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{
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host =
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{ config, lib, pkgs, nodes, ... }:
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{ virtualisation.writableStore = true;
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virtualisation.diskSize = 2048;
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virtualisation.additionalPaths =
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[ pkgs.stdenvNoCC
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(import ./systemd-nspawn.nix { inherit nixpkgs; }).toplevel
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];
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virtualisation.memorySize = 4096;
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nix.settings.substituters = lib.mkForce [ ];
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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.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.succeed("nix --version >&2")
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# Test that 'id' gives the expected result in various configurations.
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# Existing UIDs, sandbox.
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host.succeed("nix build -v --no-auto-allocate-uids --sandbox -L --offline --impure --file ${./id-test.nix} --argstr name id-test-1")
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host.succeed("[[ $(cat ./result) = 'uid=1000(nixbld) gid=100(nixbld) groups=100(nixbld)' ]]")
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# Existing UIDs, no sandbox.
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host.succeed("nix build -v --no-auto-allocate-uids --no-sandbox -L --offline --impure --file ${./id-test.nix} --argstr name id-test-2")
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host.succeed("[[ $(cat ./result) = 'uid=30001(nixbld1) gid=30000(nixbld) groups=30000(nixbld)' ]]")
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# Auto-allocated UIDs, sandbox.
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host.succeed("nix build -v --auto-allocate-uids --sandbox -L --offline --impure --file ${./id-test.nix} --argstr name id-test-3")
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host.succeed("[[ $(cat ./result) = 'uid=1000(nixbld) gid=100(nixbld) groups=100(nixbld)' ]]")
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# Auto-allocated UIDs, no sandbox.
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host.succeed("nix build -v --auto-allocate-uids --no-sandbox -L --offline --impure --file ${./id-test.nix} --argstr name id-test-4")
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host.succeed("[[ $(cat ./result) = 'uid=872415232 gid=30000(nixbld) groups=30000(nixbld)' ]]")
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# Auto-allocated UIDs, UID range, sandbox.
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host.succeed("nix build -v --auto-allocate-uids --sandbox -L --offline --impure --file ${./id-test.nix} --argstr name id-test-5 --arg uidRange true")
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host.succeed("[[ $(cat ./result) = 'uid=0(root) gid=0(root) groups=0(root)' ]]")
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# Auto-allocated UIDs, UID range, no sandbox.
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host.fail("nix build -v --auto-allocate-uids --no-sandbox -L --offline --impure --file ${./id-test.nix} --argstr name id-test-6 --arg uidRange true")
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# Run systemd-nspawn in a Nix build.
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host.succeed("nix build -v --auto-allocate-uids --sandbox -L --offline --impure --file ${./systemd-nspawn.nix} --argstr nixpkgs ${nixpkgs}")
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host.succeed("[[ $(cat ./result/msg) = 'Hello World' ]]")
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'';
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}
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