[losvedir]

I highly recommend using the hexpm docker images, which you specify with elixir, erlang, and distro versions, e.g. hexpm/elixir1.12-erlang24.0-debian-buster.

Since the official Elixir versions aren't pinned to a version of Erlang, we had issues where either Erlang or the distro should change out from under us. But not with the hexpm ones.

[thibaut_barrere]

I second this - it is the best solution if one wants to decouple upgrades of Elixir vs OTP, and is really useful for long term upgrades (one step at a time).

[_asummers]

Only issue here is that they don't do subpatch versions. We needed Erlang 22.3.4.1 for something, so had to build by hand.

[ericmj]

We do build for subpatch versions: https://hub.docker.com/repository/docker/hexpm/erlang/tags?p...

[_asummers]

Ooooh that didn't used to be true, from what I saw! Happy that changed. I can clean up a bunch of images on my side.

[conradfr]

Thanks, I'll look into it.

edit: so far so good.