Switch away from apt-key in Debian/Ubuntu instruction

[TobiX]

The apt maintainer has recently announced that apt-key is deprecated and its use is seen as an antipattern by other Debian developers.

I would suggest to adopt something like the Kubernetes instructions or even follow the guide in the Debian wiki for packaging the key inside the repository (in a package named adoptopenjdk-archive-keyring) to allow automatic key rollovers.

[aahlenst]

The information how to do this properly is super hard to find (at least for me). So thanks a lot for the links.

It's already planned to create a keyring package, but that won't happen with the old AdoptOpenJDK repository that's going to be replaced soon-ish anyway. Development happens in my private repository (ticket: aahlenst/adoptium-packages-linux#2).

I'm happy to review a PR that updates the instructions on the website to match the Kubernetes instructions.

[aahlenst]

To turn it into an issue for newcomers, what to do:

1. Checkout the website (this) repository.
2. Look for the page that contains the install instructions and for the segment that mentions how to install using a Debian repository.
3. Change the existing instructions so that they no longer use apt-key. Instead adapt the instructions provided for Kubernetes to AdoptOpenJDK.

The key parts from the Kubernetes instructions are:

Download the Google Cloud public signing key (take AdoptOpenJDK's instead, change URLs)

sudo curl -fsSLo /usr/share/keyrings/kubernetes-archive-keyring.gpg https://packages.cloud.google.com/apt/doc/apt-key.gpg

Add the Kubernetes apt repository: (use AdoptOpenJDK's key, change URLs)

echo "deb [signed-by=/usr/share/keyrings/kubernetes-archive-keyring.gpg] https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list

[Martins-O-U]

Hello @

The information how to do this properly is super hard to find (at least for me). So thanks a lot for the links.

It's already planned to create a keyring package, but that won't happen with the old AdoptOpenJDK repository that's going to be replaced soon-ish anyway. Development happens in my private repository (ticket: aahlenst/adoptium-packages-linux#2).

I'm happy to review a PR that updates the instructions on the website to match the Kubernetes instructions.

@aahlenst I'm an Outreachy Applicant here and I am interested in updating the website instructions to match the Kubernetes instructions.
@smlambert @sophia-guo @llxia please could this task be assigned to me for my Outreachy contribution?

[Martins-O-U]

Thanks @karianna

[Martins-O-U]

Hello @karianna, I have opened a Pull Request ( #973 ) for the documentation update. I did it a little different from that of Kubernetes due to errors I had while testing theirs.
Please review/test for confirmation.
Thanks

Cc: @aahlenst

[karianna]

instructions updated at adoptium.net

[TobiX]

This one? https://github.com/adoptium/website-v2/blob/main/src/asciidoc-pages/installation/linux.adoc#deb-installation-on-debian-or-ubuntu - That still uses apt-key 😞

I'll try to send a new pull request to that repo this evening...