Dockerビルド中に「RUN apt-get update」でエラーが出た。
GPG keyとかレポジトリへの接続の問題と思いきや、単にローカル環境の容量不足でした。
解決した方法
$ docker system prune
WARNING! This will remove:
- all stopped containers
- all networks not used by at least one container
- all dangling images
- all dangling build cache
...
...
Total reclaimed space: 43.17GB
Error LOG
=> ERROR [4/7] RUN apt-get update 1.1s
[4/7] RUN apt-get update:
#0 0.753 Get:1 http://deb.debian.org/debian bookworm InRelease [147 kB]
#0 0.785 Get:2 http://deb.debian.org/debian bookworm-updates InRelease [52.1 kB]
#0 0.789 Get:3 http://deb.debian.org/debian-security bookworm-security InRelease [48.0 kB]
#0 0.869 Err:1 http://deb.debian.org/debian bookworm InRelease
#0 0.869 At least one invalid signature was encountered.
#0 0.947 Err:2 http://deb.debian.org/debian bookworm-updates InRelease
#0 0.947 At least one invalid signature was encountered.
#0 1.036 Err:3 http://deb.debian.org/debian-security bookworm-security InRelease
#0 1.036 At least one invalid signature was encountered.
#0 1.051 Reading package lists...
#0 1.078 W: GPG error: http://deb.debian.org/debian bookworm InRelease: At least one invalid signature was encountered.
#0 1.078 E: The repository 'http://deb.debian.org/debian bookworm InRelease' is not signed.
#0 1.078 W: GPG error: http://deb.debian.org/debian bookworm-updates InRelease: At least one invalid signature was encountered.
#0 1.078 E: The repository 'http://deb.debian.org/debian bookworm-updates InRelease' is not signed.
#0 1.078 W: GPG error: http://deb.debian.org/debian-security bookworm-security InRelease: At least one invalid signature was encountered.
#0 1.078 E: The repository 'http://deb.debian.org/debian-security bookworm-security InRelease' is not signed.
ERROR: failed to solve: executor failed running [/bin/sh -c apt-get update]: exit code: 100
参考
微妙にログは違うけど、同じ内容だった
https://qiita.com/yukia3e/items/6e2536dd90d34a8b01cc
https://note.yu9824.com/error/2022/03/19/docker-debian-gpg-error.html