Documentation for SSH is not correct for Alpine linux (fixes in the description)

[williamdes]

Gitea Version

1.16.x

Git Version

No response

Operating System

No response

How are you running Gitea?

Using docker compose

Database

MySQL

Can you reproduce the bug on the Gitea demo site?

No

Log Gist

No response

Description

I have the following error message in my logs by sshd: fatal: reprocess config line 122: AuthorizedKeysCommand must be an absolute path

After applying https://docs.gitea.io/en-us/install-with-docker/#ssh-shell-with-authorizedkeyscommand

What was needed on my Alpine 3.14 was this diff:

- AuthorizedKeysCommand ssh -p 2222 -o StrictHostKeyChecking=no git@127.0.0.1 /usr/local/bin/gitea keys -c /data/gitea/conf/app.ini -e git -u %u -t %t -k %k
+ AuthorizedKeysCommand /usr/bin/ssh -p 2222 -o StrictHostKeyChecking=no git@127.0.0.1 /usr/local/bin/gitea keys -c /data/gitea/conf/app.ini -e git -u %u -t %t -k %k

And after the forwarding worked fine after another tweak

I had this error in my logs and git clone failed fetch commands ..s/setting/setting.go:952:loadFromConf() [F] Expect user 'git' but current user is: root
Solved by adding -u git in the step https://docs.gitea.io/en-us/install-with-docker/#docker-shell-with-authorizedkeyscommand
Please note on the step above the -u git is here, maybe this is also a mistake. See: https://docs.gitea.io/en-us/install-with-docker/#docker-shell-with-authorized_keys

Screenshots

No response

[mscherer]

Given openssh man pages, this doesn't seems to be a Alpine specific issue, so I fixed the 1st issue in the doc.

[williamdes]

Given openssh man pages, this doesn't seems to be a Alpine specific issue, so I fixed the 1st issue in the doc.

Thank you so much !

What about the -u git one ?

[mscherer]

For the 2nd part, I am not sure to really understand where the problem come from. Is the issue in the docker-shell wrapper, as there is already a -u on the AuthorizedKeysCommand.

If you could make a PR, it would be clearer to me

[williamdes]

For the 2nd part, I am not sure to really understand where the problem come from. Is the issue in the docker-shell wrapper, as there is already a -u on the AuthorizedKeysCommand.

If you could make a PR, it would be clearer to me

There is no -u git in the shell wrapper of https://docs.gitea.io/en-us/install-with-docker/#docker-shell-with-authorizedkeyscommand
But there is one in the wrapper of https://docs.gitea.io/en-us/install-with-docker/#docker-shell-with-authorized_keys

Does it make more sense ?

[mscherer]

Seems the bug was closed by error (or rather closed automatically), I can't reopen myself it seems.

And yes, the wrapper is not the same but I wonder if it should be fixed on the Dockerfile side to force the container to run as the user git, as it would make the doc simpler.

[williamdes]

Seems the bug was closed by error (or rather closed automatically), I can't reopen myself it seems.

And yes, the wrapper is not the same but I wonder if it should be fixed on the Dockerfile side to force the container to run as the user git, as it would make the doc simpler.

Well I tried running the container as git user and that was not the right fix for this issue, I lost quite a lot of time trying this solution.
Finally the -u git worked like a charm and did not destroy my setup
Would you mind making a PR for that ? (I could make one too but I am not setup for gitea dev)

[mscherer]

yes, but the docker container should already run as the git user (or I think it should). Forcing the git user on the Docker exec seems like a workaround for something that shouldn't be needed, as adding USER should make it work out of the box.