Docker images: Alpine and new architecture support

Geoff Simmons geoff at uplex.de
Fri Aug 13 10:27:55 UTC 2021


On 8/6/21 02:59, Guillaume Quintard wrote:
> 
> In short, all images are now supported on amd64, arm32v7, arm64v8, i386,
> ppc64le, and s390x. And on top of this, the "fresh" tags are also
> accessible with an "-alpine" suffix (fresh-alpine, 6.6.1-alpine, etc.).

Guillaume this is good news, thanks for this effort.

Can you (or anyone) share some info about how well Varnish performs with
musl libc?

I like the goals of the musl project, and I sure would like to get
Varnish to run on smaller images, but I've been reluctant to seriously
try it on alpine. Because I'm not sure how well optimized musl is
compared to the old standby glibc, and Varnish needs to perform well.

glibc's reputation is that it's been around for a long time, and has had
a lot of opportunities for performance improvement. On the other hand,
glibc bugs me sometimes by taking liberties with non-standard features.

musl aims for stronger standards compliance, but is much newer, which
has made me wonder if it could support the performance we like to get
from Varnish. But it's been a few years now, so maybe I shouldn't worry
about it.

Also, I recall that for a while the alpine build was unable to pass make
check. Is that working now?


Thanks again,
Geoff
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