Container exists instantly after startup

[wis-niowy]

Hi, I'm trying to run a test container based on testcontainers/sshd:1.1.0 image.

Here is my code that attempts to do so:

var container = new ContainerBuilder()
            .WithImage("testcontainers/sshd:1.1.0")
            .WithPortBinding(22, true)
            .WithExposedPort(22)
            .WithDockerEndpoint("tcp://localhost:2375")
            .Build();

await container.StartAsync();

When running the code I lookup the Docker Desktop - and I can see that the container gets created, starts running and then instantly exits (with code 0).
What looks odd is that port mapping actually is 0:22 - so it apparently failed to assign a random port of my local machine.
When I select a port for the mapping, e.g. .WithPortBinding(55548, 22), the mapping in the Docker Desktop looks fine (55548:22) - but the container still exits instantly.

The exception that I get in the code is: System.TimeoutException : The operation has timed out.

Everything is fine when I use testcontainers/helloworld:1.1.0 image, with the following code:

var container = new ContainerBuilder()
            .WithImage("testcontainers/helloworld:1.1.0")
            .WithPortBinding(8080, true)
            .WithExposedPort(8080)
            .WithDockerEndpoint("tcp://localhost:2375")
            .Build();

await container.StartAsync();

The container stands up and runs properly - and I can successfully hit it with http request (via HttpClinet()).

So I am wondering if I am missing something or there is an issue with this image.
testcontainers/helloworld does not meet my requirements as I need an instance with a sshd running to test my ssh/sftp client locally.

My OS is Windows 10.

[theshubhamp]

Happens because the Docker image is not setup with an entrypoint that starts up SSHD.

Permitting root login and configuring the demon to not detach gets it working:

docker run -it -p 9022:22 testcontainers/sshd sh -c 'echo "PermitRootLogin yes" >> /etc/ssh/sshd_config; /usr/sbin/sshd -D'

Is this repo / image still maintained ? If so, I can send in a PR. Otherwise can be work around on ContainerBuilder directly.

[mdelapenya]

This image is used by the testcontainers libraries to provide an SSH tunnel, exposing host ports to a container. We fixed this in #7, so switching to testcontainers/ssh:1.2.0 would work out-of-the-box for you.

For that reason I'm closing this issue. Thanks!