Multi-user Eclipse Che (#6441)
#### How to run it.
```docker run -it -e CHE_MULTIUSER=true -e CHE_HOST=<your ip> -e CHE_KEYCLOAK_AUTH-SERVER-URL=http://<your ip>:5050/auth -v /var/run/docker.sock:/var/run/docker.sock -v ~/.che-multiuser:/data eclipse/che:nightly start --skip:pull --skip:nightly```
#### How to manage it
- Keycloak configured with two realms. ```Master``` and ```che```. Also we have one user admin/admin in both realm. Admin user in master realm is - super admin.
- Eclipse Che configured for che realm
- We enabled user registration in ```Che``` realm
#### Known limitation
- swagger would not work. We need to upgrade a version. to support openid authentification https://github.com/eclipse/che/issues/6015
- It's working on local docker. We are going to provide scalable version based on OpenShift on next versions.
- Invitation of non-existent users to Eclipse Che organization https://github.com/eclipse/che/issues/6335
#### How to run it when it is in a branch
To run an multiuser Che version, the following steps are required after building the branch:
- Rebuild init, cli and che images (in the given sequence). To do that, proceed to folder _dockerfiles/<image_name>_ and run _build.sh_
- Run Che in a usual way using cli, with additional parameters: `-e CHE_MULTIUSER=true` and `--skip:pull --skip:nightly`
Full command example:
`docker run -it --rm -v /var/run/docker.sock:/var/run/docker.sock -v /home/user/.che:/data -e CHE_MULTIUSER=true eclipse/che-cli:nightly start --skip:pull --skip:nightly`
- MacOS users may need to edit _che.env_ file in the data folder, changing `CHE_HOST` and `CHE_KEYCLOAK_AUTH__SERVER__URL` values to their specific IP.
When start is succeeded, the following docker containers should be created:
- che, exposing 8080 port;
- che_keycloak, exposing 5050 port;
- che_postgres, exposing 5432 port;
1. Add ability to get Git status with filter.
2. Reworked Injecting VCS status info in Project service to make Status request only once instead of requesting each time in the loop.
3. Removed `format` parameter from get status method in Git Service, because it is redundant and do not affects to anything, since we use Jgit as a Git engine.
1. Get rid of using Everrest based Websocket calls in `GitServiceClientImpl.java`.
2. Remove deprecated methods from git client service.
3. Get rid of `DevMachine devMachine` parameter from all git client service methods.
4. Rework Git clent side to use streams and lambdas.
Sergii Kabashniuk