Migrate User/Identity management from WIT to Auth

[alexeykazakov]

( Based on Aug 31st's discussion between @alexeykazakov and sbose )

Phase 1 - continue using WIT , but add support in AUTH. : #26

• Add support in WIT for creating user/identity through the UPDATE API.
• On successful login using Auth service, If user is present in Auth DB, Add support in Auth Login workflow to call "update user api" of WIT, .
• On successful login using Auth service, If user is NOT present in Auth DB, Add support in Auth Login workflow to 'GET user profile info' from WIT. After writing to AUTH DB, call "User update api" of WIT to sync the updated user profile info.
• When user profile is updated in Auth call WIT to update the user in the WIT DB.

Phase 2 - start using the Auth service : #26

• 302 Redirect requests from WIT to AUTH for login, logout, account linking - Redirect login, logout, account linking requests from WIT to AUTH fabric8-wit#1650
• Delegate requests for token refresh from WIT to AUTH. ( Delegate instead of redirect, because here a payload needs to be forwarded too, which is easier when delegated instead of redirected. ) - Redirect login, logout, account linking requests from WIT to AUTH fabric8-wit#1650
• Delegate user profile update from WIT to AUTH - Redirect login, logout, account linking requests from WIT to AUTH fabric8-wit#1650

Phase 3 - Migrate data

• Migrate user data from WIT db to AUTH db - this is a db admin task, Copy over all user/identity information from WIT DB to AUTH DB #25

Phase 4 - Switch UI to AUTH

• Switch UI (openshiftio app, fabric8-ui, planner) from WIT API to Auth API for /login, /logout, /refresh, /linksession, /user, /users:id, /spaces/:spaceID/collaborators
  Moved to Switch UI from WIT to Auth #127

Phase 5 - Clean up WIT

• Replace all call delegation in WIT by 302 redirects to AUTH (/users, /login/refresh) - Redirect /space/collaborators and /login/* and /user(s)/* to Auth fabric8-wit#1667
• Clean up WIT code and DB schema to remove unused stuff - Redirect /space/collaborators and /login/* and /user(s)/* to Auth fabric8-wit#1667

[alexeykazakov]

Phase 1 should also include a step to support creating a new user in WIT when user is trying to login first time.

And there is also Phase 5 - clean WIT (remove unused code and keep only needed info in user/identity tables.

[sbose78]

UI changes :
Noting down changes that need to be done for making UI using auth.openshift.io

• Update URL from /api/login/authorize to /api/login https://github.com/fabric8-ui/fabric8-planner/blob/b07ab261735adf025fdb0273e17110ab825c7c0e/src/app/services/login.service.ts#L17
• Update URL from /api/login/authorize to /api/login https://github.com/fabric8-ui/fabric8-ui/blob/9980b179b432d16cf4a8e4b5c29a3702ab9fd33c/src/app/shared/login.service.ts#L42
• Use 'AUTH_API_URL' instead of 'WIT_API_URL' https://github.com/fabric8-ui/fabric8-ui/blob/9980b179b432d16cf4a8e4b5c29a3702ab9fd33c/src/app/shared/login.service.ts#L33
• Add the AUTH_API_URL in https://github.com/fabric8-ui/fabric8-ui/blob/master/config/webpack.prod.js ( and other webpack.*.js too )
• Add auth to https://github.com/fabric8-ui/fabric8-ui/blob/master/src/app/shared/api-locator.service.ts

[alexeykazakov]

UI changes :

Good findings! Does these changes cover /login, /logout, /refresh ?
We will need to change /user, /users too but later.

[alexeykazakov]

UI part is moved to #127.
The rest is done.