CI: Problem building Docker image for "Release/Docker push" scenario: repo lacks mbuffer?

[jimklimov]

Apparently the chosen distro/repo lacks mbuffer:

• https://github.com/oetiker/znapzend/actions/runs/7514122856/job/20456645200

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 > [runtime 2/4] RUN   apk add --no-cache zfs curl bash autoconf automake nano perl=5.30.3-r0 openssh &&   apk add --no-cache --repository http://dl-3.alpinelinux.org/alpine/edge/community/ mbuffer &&   ln -s /dev/stdout /var/log/syslog &&   ln -s /usr/bin/perl /usr/local/bin/perl:
1.612 Executing busybox-1.31.1-r11.trigger
1.617 Executing ca-certificates-20191127-r2.trigger
1.665 OK: 67 MiB in 47 packages
1.691 fetch http://dl-3.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz
2.211 WARNING: Ignoring http://dl-3.alpinelinux.org/alpine/edge/community/: UNTRUSTED signature
2.211 fetch http://dl-cdn.alpinelinux.org/alpine/v3.11/main/x86_64/APKINDEX.tar.gz
2.371 fetch http://dl-cdn.alpinelinux.org/alpine/v3.11/community/x86_64/APKINDEX.tar.gz
2.559 ERROR: unable to select packages:
2.569   mbuffer (no such package):
2.569     required by: world[mbuffer]
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Dockerfile:22
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UPDATE: Related to:

• PR self-tests fail in docker stage: mbuffer (no such package) #589
• Dockerfile: fail fast if mbuffer is not compatible/fetchable [#589] #635

[jimklimov]

Oops, got closed by PR mis-posted to my repo, and I may not re-open it here :)