Need help to enable autosign

[jaschaezra]

Hi!

I wanted to enable autosign and ran in an issue I can not solve.

I set the .gnupg folder for the git-User
export GNUPGHOME=/app/data/appdata/home/.gnupg
created keys and everything.

But: The moment Gitea wants to sign a commit it fails as I have no possibility to set GNUPGHOME. .

Maybe anyone has an idea.

[nebulon]

@jaschaezra we may have to add support for that in the packaging then. Do you have a link to a tutorial or docs on how to setup the auto-signing?

[jaschaezra]

@nebulon That would be great.

there is no real tutorial, the documentation is quite...vague. it is here: https://docs.gitea.io/en-us/signing/

What needs ti be done (and not written down in the documentation): create a password less key.

I normaly do it like this:

change to the git User (su git)

create file 'genkey-batch':

%no-protection
Key-Type: default
Subkey-Type: default
Name-Real: Gitea
Name-Email: git@GITEADOMAIN
Expire-Date: 0

Execute key generation:

gpg --batch --gen-key genkey-batch

the Key will be added to the keychain which resides in /home/$USER/.gnupg

You can change this with
export GNUPGHOME=/app/data/appdata/home/.gnupg

In the app.ini you need to add the following:

[repository.signing]
SIGNING_KEY = default
SIGNING_NAME = Gitea
SIGNING_EMAIL = git@GITEADOMAIN
INITIAL_COMMIT = always
CRUD_ACTIONS = pubkey, twofa, parentsigned
WIKI = never
MERGES = pubkey, twofa, basesigned, commitssigned

The last three entries can and should be configured by the Instance Gitea-Owner, depending on what should be auto signed.

the only thing which needs to be changed if you do it like I did is to add

export GNUPGHOME=/app/data/appdata/home/.gnupg

to the shell environment. then it works (well, it did on my old server with other paths, but it worked :))

the only thing I would do if I package would be to add GNUPGHOME as standard and add a note in the documentation how to enable autosign.

[nebulon]

Thanks for the detailed description. I have changed the package to allow adding the keys and set the GNUPGHOME (this change is not published yet). It all seems fine, but I am not sure how to test or check if the signing actually was performed. Also do I have to set something for a git repository in gitea specifically to make it sign the commits?

[jaschaezra]

@nebulon I would love to test it.

When you create a repository and init it from the webfrostend, then this commit is signed by Gitea. So in fact all the things you do in the webfrontend.

These settings
INITIAL_COMMIT = always CRUD_ACTIONS = pubkey, twofa, parentsigned
say: Always sign the initial commit. Sign every other commits if the User has set a pub key OR enabled TFA or if the parent commit is signed.

Hope that helps.

[nebulon]

@jaschaezra the change is quite small https://git.cloudron.io/cloudron/gitea-app/-/commit/32eebcff8fd7c095d4e88cba396e693cb12bfbbe

It would be great if you could test this. Basically checkout the app package repo and run cloudron build && cloudron install in the folder. Granted you have the cloudron cli tool installed and configured for your Cloudron already.

[jaschaezra]

@nebulon Thanks! I will test it later tonight and provide feedback!

EDIT How do I build it? cloudron build asks for a registry...

[jaschaezra]

This post is deleted!

[jaschaezra]

@nebulon I got the image built but I can not install it.

Location: x
Port SSH_PORT: 29418
Failed to install app: 409 message: Port 29418-tcp is in use```

[nebulon]

@jaschaezra seems like you already have an instance using the default port there. Try to run cloudron install -p for interactive way to set a different port.

[jaschaezra]

@nebulon I do not know what is going on on my system but I seriously fucked something up

Sorry, I just can not test it at the moment

[nebulon]

@jaschaezra there is no time pressure at all. Hope you get your system back up again though. If it is Cloudron related, let us know of course.

[jaschaezra]

@nebulon It worked for me

So it would be great if this can be deployed in the container. (With the latest update :D)

[nebulon]

@jaschaezra thanks for testing and confirming the fix. I have pushed a new package now.

[jaschaezra]

@nebulon I just want to add some screen I just made because I forgot them to create

This is how you'll see it in the repository:

When you take a look at the commit:

The name is set in app.ini

For the key-creation:
It is much easier to do it like this:

gpg --default-new-key-algo rsa4096 --gen-key

then enter the Name, the Email (git@DOMAIN) and NO password!

That's it.

[jaschaezra]

@jaschaezra BTW, you can set a Gravatar/Libravatar for git@DOMAIN and upload e.g. the gitea Logo which then is displayed.

[jaschaezra]

This is odd - after working for a looong time I suddenly get this error when creating a repository and initializing it:

CreatePost, initRepository: initRepoCommit: git commit: exit status 128 - error: gpg failed to sign the data
fatal: failed to write commit object
 - error: gpg failed to sign the data
fatal: failed to write commit object

I first thought that maybe the key is gone. By checking this I found that:

root@0f44f577-d0e0-42e6-a371-d3914aba0014:/home/git# sudo -u git gpg --list-keys
gpg: Fatal: can't create directory '/home/git/.gnupg': Read-only file system
root@0f44f577-d0e0-42e6-a371-d3914aba0014:/home/git# 

I have not changed anything and I do not know when this happened as I was not using my git for the last ~9 months.

Any idea what is going on @nebulon?

[nebulon]

Just briefly rereading the thread, did you set GNUPGHOME for git user so it uses the correct (writeable) folder? Seems like the one which is used should be export GNUPGHOME=/app/data/appdata/home/.gnupg

[robi]

@nebulon might be nice to have these set when terminal is launched including HOME.

[jaschaezra]

@nebulon I now get a new error:

root@0f44f577-d0e0-42e6-a371-d3914aba0014:/home/git# sudo -u git bash
git@0f44f577-d0e0-42e6-a371-d3914aba0014:~$ export GNUPGHOME=/app/data/appdata/home/.gnupg
git@0f44f577-d0e0-42e6-a371-d3914aba0014:~$ gpg --list-keys
gpg: WARNING: unsafe permissions on homedir '/app/data/appdata/home/.gnupg'
git@0f44f577-d0e0-42e6-a371-d3914aba0014:~$