Merge pull request #109447 from mikroskeem/docker-20.10-fixes

Docker 20.10 fixes

nixos/modules/virtualisation/docker.nix

@@ -165,7 +165,7 @@ in
             ''
               ${cfg.package}/bin/dockerd \
                 --group=docker \
-                --host=unix:// \
+                --host=fd:// \
                 --log-driver=${cfg.logDriver} \
                 ${optionalString (cfg.storageDriver != null) "--storage-driver=${cfg.storageDriver}"} \
                 ${optionalString cfg.liveRestore "--live-restore" } \
@@ -216,7 +216,7 @@ in
   ]);
 
   imports = [
-    (mkRemovedOptionModule ["virtualisation" "docker" "socketActivation"] "This option was removed in favor of starting docker at boot")
+    (mkRemovedOptionModule ["virtualisation" "docker" "socketActivation"] "This option was removed and socket activation is now always active")
   ];
 
 }

nixos/tests/docker-tools.nix

@@ -18,7 +18,7 @@ import ./make-test-python.nix ({ pkgs, ... }: {
   testScript = with pkgs.dockerTools; ''
     unix_time_second1 = "1970-01-01T00:00:01Z"
 
-    docker.wait_for_unit("docker.service")
+    docker.wait_for_unit("sockets.target")
 
     with subtest("Ensure Docker images use a stable date by default"):
         docker.succeed(

nixos/tests/docker.nix

@@ -33,7 +33,7 @@ import ./make-test-python.nix ({ pkgs, ...} : {
   testScript = ''
     start_all()
 
-    docker.wait_for_unit("docker.service")
+    docker.wait_for_unit("sockets.target")
     docker.succeed("tar cv --files-from /dev/null | docker import - scratchimg")
     docker.succeed(
         "docker run -d --name=sleeping -v /nix/store:/nix/store -v /run/current-system/sw/bin:/bin scratchimg /bin/sleep 10"