Support custom certificates for git hosts for devworkspaces

[metlos]

Is your enhancement related to a problem? Please describe

Che server supports custom certificates for the git servers that it uses to create the gitconfig file in the workspace pod. This feature seems to be missing in devworkspace-operator.

Describe the solution you'd like

Che server currently supports only a single custom git credentials, while DWO supports multiple. Therefore we need to be careful and design this differently in DWO.

Describe alternatives you've considered

No response

Additional context

https://github.com/eclipse-che/che-server/blob/d1c3570fca85807edb4528fce2f346a23ee66d35/infrastructures/kubernetes/src/main/java/org/eclipse/che/workspace/infrastructure/kubernetes/provision/GitConfigProvisioner.java#L206

devfile/devworkspace-operator#613

[sleshchenko]

Note that DWO has mechanism for generating gitconfig that currently taking into account only git credentials with personal access tokens devfile/devworkspace-operator#564

[l0rd]

This is the CheCluster side issue of devfile/devworkspace-operator#613. An admin should be able to specify custom certificates for git hosts in the CheCluster CR.

[l0rd]

@metlos @skabashnyuk is someone working on this?

[skabashnyuk]

No

[gazarenkov]

Should it be fixed by devfile/devworkspace-operator#613 on DWO first or they are independent from each other?

[metlos]

To use CheCluster CR for configuring DevWorkspaces, we first need support for this feature in DWO. Once DWO can use the certificates in gitconfig, we can then update our usernamespace controller that transforms the configuration in CheCluster CR into configuration within the user's namespace where it can be picked up by DWO.

Updating the usernamespace controller should not be hard, but we first need to know what "format" DWO will use for this. The names of labels used, etc.