Alpine libressl

[carlhoerberg]

WHY are these changes introduced?

OpenSSL in alpine is said to have a memory leak.

WHAT is this pull request doing?

Replace openssl with libressl in the alpine image

HOW was this pull request tested?

[jgaskins]

I'll give this a try this evening, thanks!

[carlhoerberg]

Did you manage to try it?

[Fijxu]

Hi, we at https://github.com/iv-org/invidious we use the crystallang/crystal:1.16.3-alpine image to build an image of Invidious and we also have a memory leak, currently, compiling OpenSSL ourselves seems to fix the memory leak issue (https://forum.crystal-lang.org/t/memory-usage-of-http-one-shot-vs-maintaining-a-persistent-connection/8237/3).

I took some time to test LibreSSL instead of compiling OpenSSL, but the memory leak also happens when using LibreSSL from the Alpine repositories.

Reference: iv-org/invidious#5441 (comment) (The 1GB of Memory usage peak is when using LibreSSL from the Alpine repos and ~768MiB is when using self compiled OpenSSL)