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Michael Zhang 2023-03-29 23:38:50 -05:00
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content/posts/2023-03-29-shell-in-docker-compose-container-without-shell.md
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@ -6,9 +6,12 @@ tags = ["docker", "linux"]
Here is a rather dumb way of entering a Docker Compose container that didn't
have a shell. In this specific case, I was trying to enter a Woodpecker CI
container without exiting it. These are my specific steps for running it, please
replace the paths and container names with the ones relevant to your specific
use-case.
container without exiting it. Some Docker containers are incredibly stripped
down to optimize away bloat (which is good!) but this may make debugging them
relatively annoying.
> These are my specific steps for running it, please replace the paths and
> container names with the ones relevant to your specific use-case.
At first, I tried an approach following [this][1] document. But once I got to
actually running commands within the namespace, I realized that this exposes the
@ -20,7 +23,8 @@ need to get some shell into the container.
Fortunately, there's a software that contains a lot of handy tools in one
binary: [busybox][2]. It's a GPL software that contains a small implementation
of a bunch of typical Unix utilities in a single static binary.
of some coreutils (the Unix utilities like `ls` and `cp`) in a single static
binary.
[2]: https://busybox.net/