Can't run apt update

[alters-mit]

Dockerfile:

FROM x11docker/xserver

RUN apt -qq update

Output:

GPG error: http://xpra.org bullseye InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 73254CAD17978FAF
6.309 E: The repository 'http://xpra.org bullseye InRelease' is not signed.

[alters-mit]

I can't add the missing key myself because the Dockerfile doesn't install wget or curl and I can't get them without running apt update.

[june-fish]

As a temporary solution running apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 73254CAD17978FAF before apt update worked for me.

[mviereck]

I have pushed a fresh build to docker hub. Now xpra has fresh signed key files.

[mviereck]

I've made an update, the image now uses Debian trixie as its base.