nerdctl

> lack of docker on freebsd I'm using sysutils/docker on FreeBSD with DOCKER_HOST env var set to "ssh://user@linuxvm" where linuxvm is a local VM running on bhyve[1]. Part of local FreeBSD filesystem is shared with the Linux VM via virtio-9p passthrough. Everything plays together nicely. nerdctl[2] works with sysutils/containerd. You can't run Linux images on FreeBSD kernel (Linux jails may be an option) but there are FreeBSD images. Pkgbase[3] aims to make FreeBSD more modular, divided in chunks smaller than "base", "ports", "src"; feasible for containers. [1] https://wiki.freebsd.org/bhyve [2] https://github.com/containerd/nerdctl [3] https://wiki.freebsd.org/PkgBase

nerdctl[0] is also worth a look. [0]: https://github.com/containerd/nerdctl

Containerd and nerdctl have the neat trick of (experimental) support for distributing images over IPFS: https://github.com/containerd/nerdctl/blob/master/docs/ipfs....

How is it compared to nerdctl[0] (another docker compatible cli)? [0]: https://github.com/containerd/nerdctl

We do two strange things (right now) that only seem to work with Docker Desktop for Mac <=4.3.2: We use registry mirrors to access a registry over an SSH tunnel. Doesn't seem to work with Docker via Colima, etc. as it's initiating connections from inside the VM, which doesn't see the SSH tunnel. Broke with Docker Desktop for Mac 4.4.2 as well, and tbh I can't explain why it ever worked, but it did. Nerdctl just learned about registry mirrors like 3 weeks ago[0], but it looks like it's having containerd do the pull so it would be in the same boat. We set up IP aliases on lo0, and bind containers to individual addresses. This lets multiple containers and their services be directly accessible from the host - and e.g. applications running in Windows on VirtualBox - without having to remap ports. I don't think any of the alternatives support

Nerdctl[1] (for containerd) works fine with docker-compose.yml for my purposes (which are not much). The only issue I encountered was with environment variable substitution not working the same as docker-compose, but I didn't look hard for a solution and edited my compose file 1. https://github.com/containerd/nerdctl mine came bundled with Rancher desktop, and 'nerdctl compose up' is all I've needed

Yes, nerdctl compose will work for most of the use cases. Check this compatibility guide - https://github.com/containerd/nerdctl/blob/master/docs/compo...