This is a feature, not a bug. We worked hard to not require gnupg anymore. apt-key does not work without gnupg (or gpg). It's also deprecated and has been obsoleted over 10 years ago with the introduction of trusted.gpg.d.
The correct thing to do here is to wget -O /etc/apt/trusted.gpg.d/syncthing.asc https://syncthing.net /release-key.txt or wget -O <other path>/syncthing.asc https://syncthing.net/release-key.txt and add signed-by=<other path>/syncthing.asc to your sources.list entry. ** Changed in: apt (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/1916485 Title: apt-key add fails in docker - Fails to run gnupg Status in apt package in Ubuntu: New Bug description: root@84b750e443f8:/# lsb_release -rd Description: Ubuntu Hirsute Hippo (development branch) Release: 21.04 root@84b750e443f8:/# dpkg -l gnupg apt Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-==============-===============-============-========================================== ii apt 2.1.20 amd64 commandline package manager ii gnupg 2.2.20-1ubuntu2 all GNU privacy guard - a free PGP replacement Hi, for 3 days our CI pipelines to recreate Docker images fails for the Hirsute images. From comparison this seems to be caused by apt 2.1.20. The build fails with: 0E: gnupg, gnupg2 and unupg1 do not seem to be installed, but one of them is required for this operation The simple Dockerfile to reproduce the error - "docker build -t foo ." FROM amd64/ubuntu:hirsute MAINTAINER Florian Lohoff <f...@zz.de> USER root RUN apt-get update \ && DEBIAN_FRONTEND=noninteractive apt-get -y install curl gnupg apt \ && curl https://syncthing.net/release-key.txt | apt-key add - Breaking it down it this seems to be an issue that there is new functionality in apt/apt-key e.g. security hardening that docker prohibits in its containers. Running this manually works only in an --privileged container. So adding keys in unpriviledged container or possibly kubernetes will not work anymore. Flo To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1916485/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
