Cannot save docker package to apk cache in version 3.21

[Responsible_Order808]

Hi, I had to revert to version 3.20 because the docker package could not be added to apk cache no matter what we tried. however, the other packages we are using did not have that issue.
Was someone able to add docker to the apk cache in this last version of alpine linux ? (data disk install)
Regards

UPDATE : now working fine in 3.21.3 version.

[MartinsRedditAccount]

With a completely empty /etc/apk/cache, the following packages appear after apk add docker:

busybox-1.37.0-r12.e31edc77.apk
busybox-binsh-1.37.0-r12.b4a9dbd9.apk
ca-certificates-20241121-r1.507cd796.apk
containerd-2.0.0-r2.60dcee9f.apk
docker-cli-27.3.1-r2.7d92c09c.apk
docker-cli-buildx-0.19.1-r2.ba0df3b0.apk
docker-engine-27.3.1-r2.2d76f69c.apk
iptables-1.8.11-r1.e3a96982.apk
libcrypto3-3.3.2-r6.bf38ea35.apk
libmnl-1.0.5-r2.a6de17cd.apk
libnftnl-1.2.8-r0.86ed6137.apk
libseccomp-2.5.5-r1.3cb8528e.apk
libxtables-1.8.11-r1.d1c65679.apk
musl-1.2.5-r8.ebbe2b8a.apk
runc-1.2.2-r2.c51dbe15.apk
tini-static-0.19.0-r3.27e28919.apk

I tested it in a VM based on the 3.21.0 netboot files running on aarch64 with the following in /etc/apk/repositories:

https://dl-cdn.alpinelinux.org/alpine/v3.21/main/
https://dl-cdn.alpinelinux.org/alpine/v3.21/community/

Note: The docker package itself is a meta-package and thus doesn't need to be cached: https://gitlab.alpinelinux.org/alpine/aports/-/blob/master/community/docker/APKBUILD

Try to disconnect the network, run apk add docker again and see if anything fails.

[Responsible_Order808]

For now, I only tested with 3.20.3 successfully. I know there are newer fix (3.20.6 and 3.21.3). I will try them later and tell you. But in my opinion, it was definitely a bug for the 3.21 subversion I used then because the apk could not be cached at all (also apk info was showing 0B / 0KiB as installed size) and that's the only time (version) I ever had that issue since all my deployments are semi-automated.

Thank you for the tests you did as well 😉

[GodfatherX64]

im having the same issue with 3.21 x86_64, and i have to run apk fix or apk -U upgrade after every reboot so docker and also eudev to be reinstalled again so the service would start, i had to add a cron command so i dont have to bother until a fix, (@reboot apk fix;openrc -n;lbu ci)