From 0056029da7a6ea28a81081f5cf2bbf6a3d17dcb5 Mon Sep 17 00:00:00 2001
From: Daniel Olsen <daniel.olsen99@gmail.com>
Date: Thu, 11 Apr 2024 23:19:41 +0200
Subject: [PATCH] treewide: bubblewrap nginx test

---
 flake.nix               | 17 ++++++++++++++++-
 overlays/nginx-test.nix | 23 ++++++++++++++++++++---
 2 files changed, 36 insertions(+), 4 deletions(-)

diff --git a/flake.nix b/flake.nix
index 20bfb19..ca5d98e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -65,7 +65,22 @@
           pkgs = import nixpkgs {
             inherit system;
             overlays = [
-              (import ./overlays/nginx-test.nix)
+              (import ./overlays/nginx-test.nix
+                # List of all the acme certs from all hosts
+                # Would be nice to dynamically get this per host
+                [
+                  "ildkule.pvv.ntnu.no"
+                  "git.pvv.ntnu.no"
+                  "wiki.pvv.ntnu.no"
+                  "webmail.pvv.ntnu.no"
+                  "postgres.pvv.ntnu.no"
+                  "idp.pvv.ntnu.no"
+                  "matrix.pvv.ntnu.no"
+                  "chat.pvv.ntnu.no"
+                  "brzeczyszczykiewicz.pvv.ntnu.no"
+                  "georg.pvv.ntnu.no"
+                ]
+              )
             ] ++ config.overlays or [ ];
           };
         }
diff --git a/overlays/nginx-test.nix b/overlays/nginx-test.nix
index 4cef5ab..ef82377 100644
--- a/overlays/nginx-test.nix
+++ b/overlays/nginx-test.nix
@@ -1,11 +1,28 @@
-final: prev: {
+acme-certs: final: prev:
+  let
+    lib = final.lib;
+    crt = "${final.path}/nixos/tests/common/acme/server/acme.test.cert.pem";
+    key = "${final.path}/nixos/tests/common/acme/server/acme.test.key.pem";
+  in {
   writers = prev.writers // {
     writeNginxConfig = name: text: final.runCommandLocal name {
       nginxConfig = prev.writers.writeNginxConfig name text;
-      nativeBuildInputs = [ final.nginx ];
+      nativeBuildInputs = [ final.bubblewrap ];
     } ''
       ln -s "$nginxConfig" "$out"
-      nginx -t -c "$out"
+      set +o pipefail
+      bwrap \
+        --ro-bind "${crt}" "/etc/certs/nginx.crt" \
+        --ro-bind "${key}" "/etc/certs/nginx.key" \
+        --ro-bind "/nix" "/nix" \
+        --ro-bind "/etc/hosts" "/etc/hosts" \
+        --dir "/run/nginx" \
+        --dir "/tmp" \
+        --dir "/var/log/nginx" \
+        ${lib.concatMapStrings (name: "--ro-bind \"${crt}\" \"/var/lib/acme/${name}/fullchain.pem\" \\") acme-certs}
+        ${lib.concatMapStrings (name: "--ro-bind \"${key}\" \"/var/lib/acme/${name}/key.pem\" \\") acme-certs}
+        ${lib.concatMapStrings (name: "--ro-bind \"${crt}\" \"/var/lib/acme/${name}/chain.pem\" \\") acme-certs}
+        ${lib.getExe final.nginx} -t -c "$out" |& grep "syntax is ok"
     '';
   };
 }