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chore(docs): add frontend migration guides - #5009

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openshift-merge-bot[bot] merged 3 commits into
redhat-developer:mainfrom
gashcrumb:RHIDP-15092
Jul 1, 2026
Merged

openshift-merge-bot[bot] merged 3 commits into
redhat-developer:mainfrom
gashcrumb:RHIDP-15092

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@gashcrumb

@gashcrumb gashcrumb commented Jun 24, 2026 •

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Description

This change adds a couple migration guides to help plugin developers and RHDH operators better understand the changes required to adopt the new frontend system once it's made the default in RHDH.

Assisted-By: Cursor Desktop

Which issue(s) does this PR fix

PR acceptance criteria

Please make sure that the following steps are complete:

  • GitHub Actions are completed and successful
  • Unit Tests are updated and passing
  • E2E Tests are updated and passing
  • Documentation is updated if necessary (requirement for new features)
  • Add a screenshot if the change is UX/UI related

How to test changes / Special notes to the reviewer

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The container image build workflow finished with status: cancelled.

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codecov Bot commented Jun 24, 2026 •

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 55.39%. Comparing base (65bcea6) to head (85e79ae).
⚠️ Report is 20 commits behind head on main.

Additional details and impacted files
@@           Coverage Diff           @@
##             main    #5009   +/-   ##
=======================================
  Coverage   55.39%   55.39%           
=======================================
  Files         122      122           
  Lines        2365     2365           
  Branches      539      564   +25     
=======================================
  Hits         1310     1310           
  Misses       1049     1049           
  Partials        6        6           
Flag Coverage Δ
rhdh 55.39% <ø> (ø)

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Image was built and published successfully. It is available at:

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Image was built and published successfully. It is available at:

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The container image build and publish workflows were skipped (either due to [skip-build] tag or no relevant changes with existing image).

This change adds a couple migration guides to help plugin developers and
RHDH operators better understand the changes required to adopt the new
frontend system once it's made the default in RHDH.

Assisted-By: Cursor Desktop
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The container image build and publish workflows were skipped (either due to [skip-build] tag or no relevant changes with existing image).

@gashcrumb gashcrumb changed the title chore(docs): add a frontend migration guide chore(docs): add frontend migration guides Jun 25, 2026
rohitkrai03 and others added 2 commits June 30, 2026 02:17
- Fix drawer section: AppDrawerContentBlueprint exists in RHDH (not
  "pending NFS design")
- Add translation module pluginId: 'app' requirement
- Add API breaking changes (param renames, makeWithOverrides deprecation)
- Add 3 common gotchas (defineParams wrapper, double headers, default export)
- Add reference migration PRs table (8 rhdh-plugins PRs)
- Add dev app setup for Phase 3 validation

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
…hanges

docs: add gotchas, API changes, drawer blueprint, and reference PRs
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/lgtm

@openshift-ci openshift-ci Bot added the lgtm label Jul 1, 2026
@openshift-merge-bot
openshift-merge-bot Bot merged commit a1a8bf9 into redhat-developer:main Jul 1, 2026
21 checks passed
gustavolira added a commit to gustavolira/rhdh that referenced this pull request Sep 11, 2026
`markdown-link-check` has failed on every PR since 2026-09-10. Not because of
anything those PRs changed — it scans the whole repo — but because redhat-developer#5360 bumped
the action from v1.1.2 to v1.1.3 the day before, and the newer version checks
in-file anchors.

What it found is real. The three anchors point at

    ### Adding application drawers (`application/internal/drawer-*`)

whose slug keeps the hyphen before the asterisk and so ends in one. The links
omit it, which means they have been going nowhere on GitHub since the guides
landed in July (redhat-developer#5009). Verified with github-slugger rather than reasoned about.

backstage.io/docs/reference/filter-predicates is a genuine 404 with no successor
I could find, so the link goes and the sentence keeps its wording rather than
pointing somewhere invented.

The one false positive is docs.redhat.com, which bot-blocks the checker: 302
with no user agent, 403 with a browser one, on URLs that open fine. It joins the
two Red Hat hosts already in ignorePatterns for the same reason.

Verified by running markdown-link-check with the repo's own config over each
affected file: all exit 0.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
gustavolira added a commit to gustavolira/rhdh that referenced this pull request Sep 11, 2026
`markdown-link-check` has failed on every PR since 2026-09-10. Not because of
anything those PRs changed — it scans the whole repo — but because redhat-developer#5360 bumped
the action from v1.1.2 to v1.1.3 the day before, and the newer version checks
in-file anchors.

What it found is real. The three anchors point at

    ### Adding application drawers (`application/internal/drawer-*`)

whose slug keeps the hyphen before the asterisk and so ends in one. The links
omit it, which means they have been going nowhere on GitHub since the guides
landed in July (redhat-developer#5009). Verified with github-slugger rather than reasoned about.
It is the only heading in docs/ that falls into this trap.

backstage.io/docs/reference/filter-predicates is a genuine 404 with no successor
I could find, so the link goes and the sentence keeps its wording rather than
pointing somewhere invented.

docs.redhat.com is the one false positive, and it is intermittent rather than a
flat block: the two URLs that failed in CI answer 200 from a workstation, and
answered 302/403 an hour earlier. The site rate-limits automated callers, and
the existing retry settings only cover 429, not 403. Ignoring the domain is the
pragmatic fix, at the cost of no longer checking the six docs.redhat.com links
in the repo — the other four are passing today and would lose coverage.

Verified by running markdown-link-check with the repo's own config over each
affected file: all exit 0.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
gustavolira added a commit to gustavolira/rhdh that referenced this pull request Sep 11, 2026
`markdown-link-check` has failed on every PR since 2026-09-10. Not because of
anything those PRs changed — it scans the whole repo — but because redhat-developer#5360 bumped
the action from v1.1.2 to v1.1.3 the day before, and the newer version checks
in-file anchors.

What it found is real. The three anchors point at

    ### Adding application drawers (`application/internal/drawer-*`)

whose slug keeps the hyphen before the asterisk and so ends in one. The links
omit it, which means they have been going nowhere on GitHub since the guides
landed in July (redhat-developer#5009). Verified with github-slugger rather than reasoned about.
It is the only heading in docs/ that falls into this trap.

backstage.io/docs/reference/filter-predicates is a genuine 404 with no successor
I could find, so the link goes and the sentence keeps its wording rather than
pointing somewhere invented.

docs.redhat.com is the one false positive, and it is intermittent rather than a
flat block: the two URLs that failed in CI answer 200 from a workstation, and
answered 302/403 an hour earlier. The site rate-limits automated callers, and
the existing retry settings only cover 429, not 403. Ignoring the domain is the
pragmatic fix, at the cost of no longer checking the six docs.redhat.com links
in the repo — the other four are passing today and would lose coverage.

Verified by running markdown-link-check with the repo's own config over each
affected file: all exit 0.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
gustavolira added a commit to gustavolira/rhdh that referenced this pull request Sep 11, 2026
`markdown-link-check` has failed on every PR since 2026-09-10, against content
none of those PRs touched — it scans the whole repo. redhat-developer#5360 bumped the action
from v1.1.2 to v1.1.3 the day before and the newer version checks in-file
anchors, which is what surfaced the first batch.

Anchors. Three links point at

    ### Adding application drawers (`application/internal/drawer-*`)

whose slug keeps the hyphen before the asterisk and so ends in one. They have
been going nowhere on GitHub since the guides landed in July (redhat-developer#5009). Verified
with github-slugger; it is the only heading in docs/ with this shape.

Pages that moved upstream:
- backstage.io/docs/reference/filter-predicates -> the generated API reference
  (thanks Hope for finding it)
- backstage.io/docs/reference/core-plugin-api.apptheme -> the module page, the
  hand-written reference page is gone
- docs.ci.openshift.org/docs/architecture/prow -> /docs/architecture
- community-plugins redhat-argocd -> argocd, renamed in their #6820
- community-plugins github-actions, github-issues and
  github-pull-requests-board -> all under one github workspace after their #7507
- gajus/global-agent test files -> the repo root; neither path exists on master
  or main any more

Things that no longer exist here:
- values_showcase-auth-providers.yaml was deleted in redhat-developer#4458, and the bullet above
  it already says that job deploys with the Operator rather than Helm, so the
  whole bullet goes
- github-discovery.spec.ts is gone; the auth-providers suites are what use
  fixtures today

Rate-limited hosts, not dead links: docs.redhat.com, developers.redhat.com and
devservices.dpp.openshift.com answer 200 or resolve from a workstation and 403
or 0 from CI. The existing retry settings only cover 429. They join the two Red
Hat hosts already in ignorePatterns, at the cost of no longer checking the
handful of links behind them.

Verified by running markdown-link-check with the repo's own config over docs/
and the root markdown, the two sets the workflow checks: both clean.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
kim-tsao pushed a commit that referenced this pull request Sep 14, 2026
* fix(docs): repair three broken anchors and one dead link

`markdown-link-check` has failed on every PR since 2026-09-10. Not because of
anything those PRs changed — it scans the whole repo — but because #5360 bumped
the action from v1.1.2 to v1.1.3 the day before, and the newer version checks
in-file anchors.

What it found is real. The three anchors point at

    ### Adding application drawers (`application/internal/drawer-*`)

whose slug keeps the hyphen before the asterisk and so ends in one. The links
omit it, which means they have been going nowhere on GitHub since the guides
landed in July (#5009). Verified with github-slugger rather than reasoned about.
It is the only heading in docs/ that falls into this trap.

backstage.io/docs/reference/filter-predicates is a genuine 404 with no successor
I could find, so the link goes and the sentence keeps its wording rather than
pointing somewhere invented.

docs.redhat.com is the one false positive, and it is intermittent rather than a
flat block: the two URLs that failed in CI answer 200 from a workstation, and
answered 302/403 an hour earlier. The site rate-limits automated callers, and
the existing retry settings only cover 429, not 403. Ignoring the domain is the
pragmatic fix, at the cost of no longer checking the six docs.redhat.com links
in the repo — the other four are passing today and would lose coverage.

Verified by running markdown-link-check with the repo's own config over each
affected file: all exit 0.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(docs): repair the dead links across docs and README

`markdown-link-check` has failed on every PR since 2026-09-10, against content
none of those PRs touched — it scans the whole repo. #5360 bumped the action
from v1.1.2 to v1.1.3 the day before and the newer version checks in-file
anchors, which is what surfaced the first batch.

Anchors. Three links point at

    ### Adding application drawers (`application/internal/drawer-*`)

whose slug keeps the hyphen before the asterisk and so ends in one. They have
been going nowhere on GitHub since the guides landed in July (#5009). Verified
with github-slugger; it is the only heading in docs/ with this shape.

Pages that moved upstream:
- backstage.io/docs/reference/filter-predicates -> the generated API reference
  (thanks Hope for finding it)
- backstage.io/docs/reference/core-plugin-api.apptheme -> the module page, the
  hand-written reference page is gone
- docs.ci.openshift.org/docs/architecture/prow -> /docs/architecture
- community-plugins redhat-argocd -> argocd, renamed in their #6820
- community-plugins github-actions, github-issues and
  github-pull-requests-board -> all under one github workspace after their #7507
- gajus/global-agent test files -> the repo root; neither path exists on master
  or main any more

Things that no longer exist here:
- values_showcase-auth-providers.yaml was deleted in #4458, and the bullet above
  it already says that job deploys with the Operator rather than Helm, so the
  whole bullet goes
- github-discovery.spec.ts is gone; the auth-providers suites are what use
  fixtures today

Rate-limited hosts, not dead links: docs.redhat.com, developers.redhat.com and
devservices.dpp.openshift.com answer 200 or resolve from a workstation and 403
or 0 from CI. The existing retry settings only cover 429. They join the two Red
Hat hosts already in ignorePatterns, at the cost of no longer checking the
handful of links behind them.

Verified by running markdown-link-check with the repo's own config over docs/
and the root markdown, the two sets the workflow checks: both clean.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
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