dockerTools: Allow omitting all store paths

Adds includeStorePaths, allowing the omission of the store paths.
You generally want to leave it on, but tooling may disable this
to insert the store paths more efficiently via other means, such
as bind mounting the host store.

1 files changed, 14 insertions, 0 deletions

diff --git a/nixos/tests/docker-tools.nix b/nixos/tests/docker-tools.nix
index 39b97b4cb99..831ef2fb77a 100644
--- a/nixos/tests/docker-tools.nix
+++ b/nixos/tests/docker-tools.nix
@@ -20,6 +20,20 @@ import ./make-test-python.nix ({ pkgs, ... }: {
 
     docker.wait_for_unit("sockets.target")
 
+    with subtest("includeStorePath"):
+        with subtest("assumption"):
+            docker.succeed("${examples.helloOnRoot} | docker load")
+            docker.succeed("set -euo pipefail; docker run --rm hello | grep -i hello")
+            docker.succeed("docker image rm hello:latest")
+        with subtest("includeStorePath = false; breaks example"):
+            docker.succeed("${examples.helloOnRootNoStore} | docker load")
+            docker.fail("set -euo pipefail; docker run --rm hello | grep -i hello")
+            docker.succeed("docker image rm hello:latest")
+        with subtest("includeStorePath = false; works with mounted store"):
+            docker.succeed("${examples.helloOnRootNoStore} | docker load")
+            docker.succeed("set -euo pipefail; docker run --rm --volume ${builtins.storeDir}:${builtins.storeDir}:ro hello | grep -i hello")
+            docker.succeed("docker image rm hello:latest")
+
     with subtest("Ensure Docker images use a stable date by default"):
         docker.succeed(
             "docker load --input='${examples.bash}'"