Using Podman, Compose and BuildKit
For my day job, I need to build and run a Docker Compose project. However, because Docker doesn’t play well with nftables and I prefer a rootless + daemonless approach, I’m using Podman. Podman supports Docker Compose projects with two possible solutions: either by connecting the official Docker Compose CLI to a Podman socket, either by using their own drop-in replacement. They ship a small wrapper to select one of these options. (The wrapper has the same name as the replacement, which makes things confusing.) Unfortunately, both options have downsides. When using the official Docker Compose CLI, the classic builder is used instead of the newer BuildKit builder. As a result, some features such as additional contexts are not supported. When using the podman-compose replacement, some…
