Support user name and email in gitconfig

[metlos]

Description

To achieve feature parity with the Che server, DWO should support setting the user name and email in the git config.

For Devworkspace, it seems reasonable to use the same approach as with other parts of the git configuration and have a dedicated label for marking a config map with this information. E.g.

kind: ConfigMap
metadata:
  labels:
    "controller.devfile.io/git-user-config": "true"
    "controllder.devfile.io/watch-configmap": "true"
data:
  name: Will E. Coyote
  email: [email protected]

UPDATE:
This issue has the following subtasks:

• Allow injecting gitconfigs using a configmap (PR) (part of milestone 3)
• Retrieving user email and name tasks (not part of milestone 3):
  • Create or update local git config when user changes Che Theia git settings  eclipse-che/che#21115
  • Provision git name or email with OIDC data eclipse-che/che#20937
  • Provision git name or email with data from personal access tokens eclipse-che/che#20938

[ibuziuk]

@l0rd @metlos the issue has been added to the endgame plan recently. is it expected to be there or could it sleep for the future releases?

[metlos]

I'll let @l0rd judge this. I added it to the list just so that it is not forgotten about before we declare feature parity.

[l0rd]

We have discussed this issue today. We have identified 2 distinct problems:

1. Retrieve the user name and email before a workspace is started (from the OIDC provider, git services APIs, asking the user etc...)
2. Use a ConfigMap to define user git configuration that works for both command line git and editors git UI

If 2 is implemented as in #708 #710 (mounted as /etc/gitconfig in all containers of the workspace pod) then the behavior is correct:

• If /etc/gitconfig exists, Theia loads values from it at statup time
• Setting Theia git username and email preferences adds them into ~/.gitconfig in theia-ide container (that have priority over /etc/gitconfig)

For 1. in priority order, che-server/che-operator should try to get username and email:

• from the OIDC provider when creating the namespace
• from the git service provider (GitHub, Gitlab, Bitbucket) when creating a workspace
• from the git service provider (GitHub, Gitlab, Bitbucket) triggered by the user clicking on a new button in Dashboard("login with " button)

[l0rd]

Closing this issue as we are tracking it in the workspace startup section of eclipse-che/che#20583