wiremock
WithWatchStaticMappings doesn't respect new files
Describe the bug
"--WatchStaticMappings true" command doesn't respect new files copied. This is a bit annoying in docker in docker configuration where I can't bind mappings using WithMappings() as docker bind always references the host and not the parent container.
Expected behavior:
On new file copy static mappings are read.
Test to reproduce
private readonly WireMockContainer _wireMockContainer = new WireMockContainerBuilder()
.WithWatchStaticMappings(true)
.WithPortBinding(5000, 80)
.Build();
await _wireMockContainer.CopyAsync($"{AppDomain.CurrentDomain.BaseDirectory}Mappings", "/app/__admin/mappings");
Check mappings or make request
Other related info
Workaround exists using admin client: await _wireMockContainer.CreateWireMockAdminClient().ResetMappingsAsync(true);
Sounds familiar.
Related to this? https://github.com/WireMock-Net/WireMock.Net/blob/eb7e6c397f686859401b3b527d68ad55dd87ff6b/src/WireMock.Net.Aspire/WireMockServerBuilderExtensions.cs#L57
If that's the correct use then no dice - mappings are still empty.
private readonly WireMockContainer _wireMockContainer = new WireMockContainerBuilder()
.WithWatchStaticMappings(true)
.WithPortBinding(5000, 80)
.WithEnvironment("DOTNET_USE_POLLING_FILE_WATCHER", "1") // https://khalidabuhakmeh.com/aspnet-docker-gotchas-and-workarounds#configuration-reloads-and-filesystemwatcher
.Build();
Mmm.
- https://learn.microsoft.com/en-us/answers/questions/1539195/filewatcher-helper-system-events-not-triggered-in
- https://forums.docker.com/t/file-system-watch-does-not-work-with-mounted-volumes/12038
The only thing I can build is a simple polling to a new rest endpoint like /__admin/mappings/readStaticMappings.
@mantasburokas Can you try 1.6.7-preview-01 ?
(Make sure to delete your local ":latest" image for WireMock.Net)
Note that I only tested on windows.
I have deleted all existing images and containers, upgraded the package but still no mappings. Added a breakpoint on CopyAsync to observe if maybe mappings appear after some delay but they don't. I also ran the unit tests on windows.
Ah sorry I misunderstood your question. I thought you were just using this to mount this folder to the internal __admin/mappings folder.
.WithMappings($"{AppDomain.CurrentDomain.BaseDirectory}Mappings")
This has been solved in the preview version.
BTW, when running on windows and using a windows container, the second argument should be c:\\app\\__admin\\mappings ?
Yeah, but I am running on windows for local setup and using linux containers. So just to re-iterate, the problem is that WithMappings() works as expected on local setup but in docker in docker configuration I can't mount the path from parent container. That's why I'd like to copy the mappings directory by hand and expect the watch flag to pick it up.
I can prepare a test solution but I am bit busy this week. Basically I have dockerfile that runs my tests and since my tests run in docker then wiremock becomes a docker in docker setup.
What happens when you just go into the WireMock.Net container and touch or create a file? Is there an update triggered? (You can checkout the logs to see this).
Please test new version: 1.6.7-preview-02 (make sure to delete the all local versions to be sure you get the latest) When you do a CopyAsync after the container is started, the new mapping will be processed.
And I noticed that when using CopyAsync in a Windows Container, I get error:
filesystem operations against a running Hyper-V container are not supported