document locating c8 credentials

[christinaausley]

Description

Closes https://github.com/camunda/camunda-docs/issues/3267.

When should this change go live?

• [ ] This is a bug fix, security concern, or something that needs urgent release support.
• [x] This is already available but undocumented.
• [ ] This on a specific schedule and the assignee will coordinate a release with the DevEx team. (apply hold label or convert to draft PR)
• [x] There is no urgency with this change and can be released at any time.

PR Checklist

• [ ] My changes are for an already released minor and are in /versioned_docs directory. Will backport upon approval.
• [x] My changes are for the next minor and are in /docs directory (aka /next/).

• [x] My changes require an Engineering review, and I've assigned the Engineerring DRI or delegate.
• [x] My changes require a technical writer review, and I've assigned @christinaausley as a reviewer.

[github-actions[bot]]

:wave: :robot: :thinking: Hello! Did you make your changes in all the right places?

These files were changed only in docs/. You might want to duplicate these changes in versioned_docs/version-8.5/.

• docs/self-managed/modeler/web-modeler/installation.md
• docs/self-managed/setup/overview.md

You may have done this intentionally, but we wanted to point it out in case you didn't. You can read more about the versioning within our docs in our documentation guidelines.

[akeller]

In my opinion "Camunda 8 credentials" is a confusing term and could be easily mixed up with the upcoming changes in camunda/product-hub#2286. Technically, what users require are credentials for accessing the Camunda Docker Registry (ie. our Harbor instance at https://registry.camunda.cloud), they are not necessarily tied to Camunda 8.

Heads-up: Starting with 8.6.0-alpha2 (ie. not older versions), Web Modeler's Docker images will be publicly available at Docker Hub, just like the other components (see camunda/product-hub#2139). At this point, we can remove this from the next docs again.

@wollefitz, is support aware of this? Since DevEx doesn't own the Support portal page (screenshot in this PR), we will adopt their language, which sounds like it could be misleading now and in the future. Can you start a thread with Support and pull in @christinaausley?

[wollefitz]

@wollefitz, is support aware of this? Since DevEx doesn't own the Support portal page (screenshot in this PR), we will adopt their language, which sounds like it could be misleading now and in the future.

Just had a look at the screenshot again - calling this "Camunda 8 download credentials" to be aligned with the support portal would already reduce the confusion. I'd not expect this being a problem after 8.6-alpha2 as all components will be publicly available and no download credentials will be required anymore. Note that this is just my personal opinion, I'm not the DRI of https://github.com/camunda/product-hub/issues/2286.