Add ability to override base domain of workspaces endpoints to match custom Che server hostname base domain

[achdmbp]

Is your enhancement related to a problem? Please describe

When configuring custom hostname for Che as described Configuring Eclipse Che server hostname. Let's say we use che.devs.mycompany.com as the hostname, the behavior will be:

• accessing che dashboard and IDE will use che.devs.mycompany.com
• however, when devs defined public endpoints in their devworkspace, the generated routes will use the default base domain. the route will be for example: https://<user>-<workspace>-<endpoint-name>.apps.<default base domain>

Describe the solution you'd like

to support switching to a new cluster and keep same custom domain of che server, add ability to use same base domain of custom hostname to be used also to generate workspace endpoints

Describe alternatives you've considered

No response

Additional context

No response

[tolusha]

@achdmbp
Try this by updating CheCluster CR:

spec:
  components:
    cheServer:
      extraProperties:
        CHE_INFRA_OPENSHIFT_ROUTE_HOST_DOMAIN__SUFFIX: "<...>"

[achdmbp]

@tolusha thank you very much. this worked! I'm surprised this wasn't documented in the admin guide or maybe I missed it somewhere ?

also is there a way to change the strategy to serve the endpoints via the main che gateway. for example,

https://<che _url>/<user>-<workspace>-<endpoint-name>

instead of creating the endpoint as new routes. Using https://<che _url>/<user>-<workspace>-<endpoint-name> is much easier to point explicit DNS entry to openshift ingress router NLB. vs having to use wild card domain record to cover all endpoints

[tolusha]

@achdmbp
Unfortunately we didn't have that in the doc. We will add.

also is there a way to change the strategy to serve the endpoints via the main che gateway. for example,

cc @dkwon17

[cgruver]

@tolusha thank you very much. this worked! I'm surprised this wasn't documented in the admin guide or maybe I missed it somewhere ?

also is there a way to change the strategy to serve the endpoints via the main che gateway. for example,

https://<che _url>/<user>-<workspace>-<endpoint-name>

instead of creating the endpoint as new routes. Using https://<che _url>/<user>-<workspace>-<endpoint-name> is much easier to point explicit DNS entry to openshift ingress router NLB. vs having to use wild card domain record to cover all endpoints

Putting this here for visibility since I don't think it is documented:

Adding the attribute: urlRewriteSupported: true will achieve the desired result.

Note: The endpoints will now require authentication, so they will not be easily shared with others on your dev team if you are collaborating between developer of two services, or frontend & backend.

    endpoints:
    - name: node
      targetPort: 4200
      exposure: public
      protocol: https
      attributes:
        urlRewriteSupported: true
    - name: https-quarkus
      targetPort: 8080
      exposure: public
      protocol: https
      attributes:
        urlRewriteSupported: true

[achdmbp]

it will be great to have a global config to control the route generation strategy vs having it configured at the endpoint level.

It would also be great to control whether we need the generated endpoints to be authenticated or not

[tolusha]

The documenation added eclipse-che/che-docs#2826