ARM64 Version

Ganzjahresgriller · 2023-10-10T10:04:39+00:00

Is there anything new there? The last blog post is from April

DerLinkman

DocFraggle Yeah exactly i remembered this so i switched it back then as Alpine had no lz4 support during the inital tests. Only zstd got added after my request first.

However it is related something which has changed from Alpine 3.16 to 3.18.

DerLinkman

I just found something very, very, very, very interesting:

https://salsa.debian.org/debian/dovecot/-/blob/master/debian/patches/Support-openssl-3.0.patch

This is a patch to support openssl 3.0 from last year. At this time Debian 12 was in development which ships OpenSSL3.0 and a running Repo Installation of Dovecot.

DocFraggle

DerLinkman but it seems that it was fixed in the 2.3.19 sources according to

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=996273

And the version in Alpine is 2.3.21

Ah it was fixed in the DEBIAN source package, not the dovecot sources. Yes, worth a try!

DerLinkman

DocFraggle Yes but only for debian! Debian creates their own patches.

You can actually see that the Dovecot devs are/were working at this too here:

https://github.com/dovecot/core/commits/main/src/lib-dcrypt/dcrypt-openssl3.c

In the current stable versions of Dovecot there is only one dcrypt-openssl.c file not two like in the main (dev) branch.

(See https://github.com/dovecot/core/tree/release-2.3.21/src/lib-dcrypt and https://github.com/dovecot/core/tree/main/src/lib-dcrypt)

Ubuntu also make their own Patches so that is also the reason why it is working with the Ubuntu Repo packages.

DocFraggle

Well, I thought I could quickly try to build an alpine dovecot image with the dovecot main branch, but I would need an Alpine Linux OS to do that 😄 that’s too much for the time I have to spare currently 🙂

Anyways, is there a specific reason why you want to switch dovecot from the Debian image over to the Alpine image?

DerLinkman

DocFraggle Yes indeed. Alpine is supporting ARM64 better then Debian at least for Dovecot. Yes their repo version is also ARM64 compatible but it makes the implementation for newer features harder as they don’t the latest versions.

With Dovecot 2.4 (or the current master state in git) there will change a lot which is causing mailcow to not even boot up. So yeah that’s a bit shitty. It has to be done in the future…

DerLinkman

Guys! Good news! My approach to Alpine has been submitted, they merged the patch!

https://gitlab.alpinelinux.org/alpine/aports/-/commit/815bb154f5337786fa025d420a0399696dfc0149

Now it only have to work 🤞

It works indeed! mailcow Team 🤜 🤛 Alpine Team

DocFraggle

DerLinkman Great news 🥳 I just deleted my ARM VM yesterday 🙃 but you already tested it I assume from your last line above 😀

DerLinkman

Yep it works. When the packages will be installed without a quirky stuff inside the docker image then i’ll probably push the updated Image so anybody can test.

Ganzjahresgriller

Does this mean that a migration from x86 to Arm should now be possible?

Ganzjahresgriller

I really don’t want to be a nuisance, but is there anything new yet?

DerLinkman

Ganzjahresgriller I’m waiting on Alpine to release 3.19 stable which includes the Dovecot fixes.

I won’t merge anything which is using Edge packages like the current nightly Version of Dovecot does. It needs to be stable at least OS wise!

DocFraggle

If you want to use it in a production environment I would definitely wait until @DerLinkman published a stable version

MAGIC

DerLinkman Which got released today \o/
https://twitter.com/alpinelinux/status/1732727917824692332

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