module-onboarding

name: module-onboarding description: Scaffold a new federated module under packages/. Runs mod-arch-installer, allocates ports, registers the feature flag and SupportedArea in the host, verifies the build (type-check, port validation, container image). Pass the module name in kebab-case as the argument.

Module Onboarding

Scaffold a new federated module (Module Federation remote with optional Go BFF) in the ODH Dashboard monorepo. The module is ready to build and run after this skill completes.

See reference.md for naming conventions, port ranges, templates, and troubleshooting. See .claude/rules/module-onboarding.md for the full manual guide.

Arguments

$ARGUMENTS — Module name in kebab-case (e.g., my-module). If empty, ask the user.

Phase 0: Parse & Validate

Extract the module name from $ARGUMENTS. If empty, ask the user for a name.
Validate the name:
- Must be non-empty, lowercase, kebab-case (only [a-z0-9-], no leading/trailing hyphens).
- Must not already exist: check that packages/<name>/ does not exist.

Compute all name variants (see reference.md § Name Transformation Rules):

kebab-case:       my-module
camelCase:        myModule
UPPER_SNAKE_CASE: MY_MODULE
Title Case:       My Module

And derived identifiers:

Package:       @odh-dashboard/my-module
SupportedArea: PLUGIN_MY_MODULE = 'plugin-my-module'
Feature flag:  myModule
MF name:       myModule
Proxy path:    /my-module/api

Ask the user: Include a Go BFF (backend-for-frontend)? Default: yes.

Phase 1: Port Allocation

Scan existing frontend ports:
```
jq -r '."module-federation".local.port // empty' packages/*/package.json 2>/dev/null | awk '$1>=9100 && $1<=9399' | sort -n
```
This reads every packages/*/package.json that has a module-federation key and collects module-federation.local.port values. Find the next unused integer in the 9100–9399 range.
Scan existing BFF ports (if BFF included):
```
grep -r 'PROXY_PORT=' packages/*/Makefile | grep -oP '\d{4,5}' | sort -n
```
Find the next unused integer in the 4000–4099 range.
Report the chosen ports to the user:
- Frontend dev port: <port>
- BFF proxy port: <port> (if applicable)

Phase 2: Scaffold with mod-arch-installer

Step 1: Run the installer

cd packages && npx mod-arch-installer -n <name>

If the installer fails (network error, not found, etc.), fall back to manual scaffolding: copy the structure from an existing federated module like packages/eval-hub/ and replace all name references. See reference.md § Module Federation Config for the package.json template.

Step 2: Verify and patch the generated output

After the installer completes, verify the following files exist and are correct. Patch any that need fixing:

packages/<name>/package.json:

name is @odh-dashboard/<name>
module-federation.name is the correct <camelCase>
module-federation.local.port matches the allocated frontend port from Phase 1
module-federation.proxy[0].path is /<name>/api
module-federation.service.port is 8043

If BFF included, add bffConfig section:

"bffConfig": {
  "enabled": true,
  "port": 8080,
  "healthEndpoint": "/healthcheck",
  "startCommand": "make dev-bff-e2e-mock"
}

Dependencies include @odh-dashboard/plugin-core and @odh-dashboard/internal
exports includes "./extensions": "./frontend/src/odh/extensions.ts"

packages/<name>/frontend/config/moduleFederation.js:

name matches <camelCase>
shared includes all required singletons (see reference.md § Shared Singletons)
exposes includes './extensions': './src/odh/extensions'

packages/<name>/frontend/src/odh/extensions.ts:

Contains app.area extension with id referencing the module's area constant and featureFlags referencing the feature flag name
Contains app.navigation/section or app.navigation/href stub
Contains app.route stub with a lazy-loaded placeholder component

packages/<name>/Makefile:

PORT variable matches the allocated frontend port
PROXY_PORT variable matches the allocated BFF port (if applicable)
Has standard targets: dev-install-dependencies, dev-frontend-federated, dev-start-federated
If BFF included: has dev-bff-federated, dev-bff-e2e-mock, dev-bff-e2e-cluster targets

packages/<name>/tsconfig.json, jest.config.ts, .eslintrc.js:

Present and correctly extending shared configs

Step 3: Create placeholder component (if not generated)

If the installer didn't create a page component, create a minimal placeholder:

// packages/<name>/frontend/src/app/pages/OverviewPage.tsx
import React from 'react';
import {
  EmptyState,
  EmptyStateBody,
  EmptyStateVariant,
  PageSection,
} from '@patternfly/react-core';
import { CubesIcon } from '@patternfly/react-icons';

const OverviewPage: React.FC = () => (
  <PageSection hasBodyWrapper={false}>
    <EmptyState
      headingLevel="h1"
      icon={CubesIcon}
      titleText="<Title Case>"
      variant={EmptyStateVariant.full}
    >
      <EmptyStateBody>This module is under development.</EmptyStateBody>
    </EmptyState>
  </PageSection>
);

export default OverviewPage;

Ensure the extensions file's route component import points to this file.

Phase 3: Register in Host

This phase modifies three files in the host application. Read each file first to find the correct insertion point.

1. Add feature flag type — `frontend/src/k8sTypes.ts`

Read the file and find the DashboardCommonConfig type. Add the new flag as an optional boolean in the tech-preview section (near the end of the type, where the other optional ?: boolean flags are):

<camelCase>?: boolean;

2. Add SupportedArea enum — `frontend/src/concepts/areas/types.ts`

Read the file and find the SupportedArea enum. Add the new entry under the /* Plugins */ comment section:

PLUGIN_<UPPER_SNAKE> = 'plugin-<kebab>',

3. Add flag default + state map — `frontend/src/concepts/areas/const.ts`

a) Add the flag default to devTemporaryFeatureFlags:

<camelCase>: false,

b) Add an entry to SupportedAreasStateMap (at the end, before the closing };):

[SupportedArea.PLUGIN_<UPPER_SNAKE>]: {
  featureFlags: ['<camelCase>'],
},

Phase 4: Dockerfile Verification

Check that packages/<name>/Dockerfile.workspace exists.
Read it and verify:
- ARG MODULE_NAME default matches <name>
- Multi-stage build has Node builder stage (frontend) and, if BFF included, Go builder stage
- Final stage copies built artifacts correctly
If the Dockerfile is missing, copy from packages/plugin-template/Dockerfile.workspace and patch the MODULE_NAME default.

Phase 5: Install & Build Verification

Run these sequentially. Stop and fix on first failure before proceeding.

Step 1: Install workspace

npm install

This wires up the new package in the npm workspace. Must succeed before other steps.

Step 2: Validate ports

npm run validate:ports

If this fails, a port conflict exists. Fix the conflicting port in package.json and re-run.

Step 3: Type-check

npm run type-check

This verifies:

The feature flag is correctly typed in DashboardCommonConfig
The SupportedArea enum entry is valid
The SupportedAreasStateMap references are correct
The extensions file compiles

If it fails with a flag name error, the flag was likely not added to k8sTypes.ts. Fix and re-run.

Step 4: BFF compilation (if BFF included)

cd packages/<name>/bff && go build ./cmd

If it fails, run go mod tidy first and retry.

Step 5: Container build

podman build --file ./packages/<name>/Dockerfile.workspace .

If podman is not available, try docker build instead. This confirms the full build pipeline works end-to-end.

If this step is slow or the user wants to skip it, it can be deferred — the earlier steps already confirm correctness. Ask before running.

Phase 6: Report

Summarize the completed onboarding:

Files created — list all new files under packages/<name>/
Host files modified — k8sTypes.ts, types.ts, const.ts
Port assignments — frontend port, BFF port (if applicable)
Build results — pass/fail for each verification step
Next steps for the team:
- Write feature code in packages/<name>/frontend/src/app/
- Add unit tests in packages/<name>/__tests__/
- Add E2E tests in packages/cypress/cypress/tests/e2e/<name>/
- Add contract tests in packages/<name>/contract-tests/ (if BFF)
- Start the dev server: cd packages/<name> && make dev-start-federated
- Enable the feature locally: set <camelCase>: true in the dashboard config