1 files changed, 28 insertions, 0 deletions
diff --git a/tests/nixos/symlink-resolvconf.nix b/tests/nixos/symlink-resolvconf.nix
new file mode 100644
index 000000000..47df27524
--- /dev/null
+++ b/tests/nixos/symlink-resolvconf.nix
@@ -0,0 +1,28 @@
+{ pkgs, ... }:
+let
+  checkResolvconfInSandbox = pkgs.runCommand "resolvconf-works-in-sandbox" {
+    # must be an FOD to have a resolv.conf in the first place
+    outputHash = "sha256-47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU=";
+    outputHashAlgo = "sha256";
+    outputHashType = "flat";
+  } ''
+    cat /etc/resolv.conf
+    touch $out
+  '';
+in {
+  name = "symlink-resolvconf";
+
+  nodes.machine = {
+    # Enabling resolved makes /etc/resolv.conf a symlink to /etc/static/resolv.conf, which is itself a symlink to /run.
+    # If this works, most other things probably will too.
+    services.resolved.enable = true;
+
+    virtualisation.additionalPaths = [checkResolvconfInSandbox.drvPath];
+  };
+
+  testScript = { nodes }: ''
+    start_all()
+
+    machine.succeed('nix-build --check ${checkResolvconfInSandbox.drvPath}')
+  '';
+}