With socat I can expose a binaries stdin/out as a socket for example like this:

$ socat TCP-LISTEN:8080,fork EXEC:./mybinary,pty

I would like to do the same with for example the go docker image. But I can't run CMD [ "socat TCP-LISTEN:8080,fork EXEC:/mybinary,pty" ] because in the go image there is no socat tool and I see now way to install it.

Full error:

docker: Error response from daemon: failed to create shim: OCI runtime create failed: container_linux.go:380: starting container process caused: exec: "socat TCP-LISTEN:8080,fork EXEC:/mybinary,pty": stat socat TCP-LISTEN:8080,fork EXEC:/mybinary,pty: no such file or directory: unknown.

Is there an elegant/intended way to do this in Docker?

Edit: My Docker File: (The project itself is just the most generic stdin/stdout echo-server you could imagine)

FROM golang:1.18

WORKDIR /app

COPY go.mod .
COPY *.go ./

RUN go build -v -o /mybinary

CMD socat TCP-LISTEN:8080,fork EXEC:/mybinary,pty