Using VSCode (via the remote SSH extension), and containers don't get cleaned up

[jscausey]

I've been trying to get ContainerSSH working for a lab environment, but have run into a snag.

When using VSCode (via the 'Remote - SSH' extension), I can get into into a container properly, and everything works fine. However, when you end the connection (by closing vscode or just dropping the ssh connection in vscode), ContainerSSH isn't able to clean up the container. These debug messages are emitted by the daemon:

containerssh-1  | {"timestamp":"2024-09-30T22:04:11Z","level":"debug","code":"DOCKER_EXIT_CODE_FAILED","message":"Failed to fetch exit code, retrying in 1 second (Program still running)","details":{"authenticatedUsername":"","backend":"docker","connectionId":"c0784ed18e3f4ccf8fed9182235ac14e","containerId":"1c3e0d3a479918c49b71237422b1bfaa0d8826cabdc67c95e7d0634cf071149a","module":"backend",...}}
containerssh-1  | {"timestamp":"2024-09-30T22:04:12Z","level":"error","code":"DOCKER_EXIT_CODE_FAILED","message":"Failed to fetch exit code, giving up (Program still running)","details":{"authenticatedUsername":"","backend":"docker","connectionId":"c0784ed18e3f4ccf8fed9182235ac14e","containerId":"1c3e0d3a479918c49b71237422b1bfaa0d8826cabdc67c95e7d0634cf071149a","module":"backend",...}}

(This is using the docker backend, btw) It looks like VSCode is running something that doesn't get gracefully terminated by docker, and ContainerSSH doesn't force the container to drop. They just sit around forever.

I added 10s timeouts (for 'signal' and 'containerStop') via the config server, but no joy. Any ideas on how to force this?