Fix the redirect url for keycloak logout

[ahmadhamzh]

What this PR does / why we need it:
Starting from Keycloak 18, RP initiated logout was introduced in keycloak. post_logout_redirect_uri and id_token_hint parameters are required now for logging a user out.

To support this special case, we are now adding a new configuration named oidc_provider which will allow us to manage OIDC provider specific configurations.

Which issue(s) this PR fixes:
Fixes #6127

What type of PR is this?

/kind bug

Fix support for keycloak OIDC logout. New field `oidc_provider` was introduced to support OIDC provider specific configurations. Configuring `oidc_provider` as `keycloak` will properly configure the logout workflow.

https://github.com/kubermatic/docs/pull/1507

[xrstf]

I just have to say it, sorry, but:

It's keycloak, not keyclock.

Thank you. ;-)

[ahmedwaleedmalik]

/approve

[kubermatic-bot]

LGTM label has been added.

Git tree hash: b04aea103cdf904b430587057ce1c7a6a914c057

[kubermatic-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ahmadhamzh, ahmedwaleedmalik

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• modules/web/src/OWNERS [ahmadhamzh,ahmedwaleedmalik]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[ahmedwaleedmalik]

/retest

[ahmedwaleedmalik]

/cherry-pick release/v2.23

[ahmedwaleedmalik]

/cherry-pick release/v2.22

[ahmedwaleedmalik]

/cherry-pick release/v2.21

[kubermatic-bot]

@ahmedwaleedmalik: #6144 failed to apply on top of branch "release/v2.23":

Applying: fix the redirect URI for keyclock
Using index info to reconstruct a base tree...
M	modules/web/src/app/project/template.html
Falling back to patching base and 3-way merge...
Auto-merging modules/web/src/app/project/template.html
CONFLICT (content): Merge conflict in modules/web/src/app/project/template.html
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0001 fix the redirect URI for keyclock
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

In response to this:

/cherry-pick release/v2.23

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[kubermatic-bot]

@ahmedwaleedmalik: #6144 failed to apply on top of branch "release/v2.22":

Applying: fix the redirect URI for keyclock
Using index info to reconstruct a base tree...
M	modules/web/src/app/project/template.html
M	modules/web/src/app/shared/model/Config.ts
Falling back to patching base and 3-way merge...
Auto-merging modules/web/src/app/shared/model/Config.ts
Auto-merging modules/web/src/app/project/template.html
CONFLICT (content): Merge conflict in modules/web/src/app/project/template.html
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0001 fix the redirect URI for keyclock
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

In response to this:

/cherry-pick release/v2.22

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[kubermatic-bot]

@ahmedwaleedmalik: #6144 failed to apply on top of branch "release/v2.21":

Applying: fix the redirect URI for keyclock
Using index info to reconstruct a base tree...
A	modules/web/src/app/core/services/auth/service.ts
A	modules/web/src/app/project/template.html
A	modules/web/src/app/shared/model/Config.ts
Falling back to patching base and 3-way merge...
Auto-merging src/app/shared/model/Config.ts
Auto-merging src/app/core/services/auth/service.ts
CONFLICT (modify/delete): modules/web/src/app/project/template.html deleted in HEAD and modified in fix the redirect URI for keyclock. Version fix the redirect URI for keyclock of modules/web/src/app/project/template.html left in tree.
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0001 fix the redirect URI for keyclock
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

In response to this:

/cherry-pick release/v2.21

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[ahmedwaleedmalik]

@ahmadhamzh You'll have to manually backport this PR to 2.23, 2.22, 2.21. Also please ensure that the documentation makes its way into those versions as well before the next patch releases.