Files
DevContainer User 06d18a3eb3 chore: standardize config and fix component test mocks
- Replace .eslintrc.json with .eslintrc.js (standard @headlamp-k8s/eslint-config)
- Create .prettierrc.js (standard Headlamp prettier config)
- Add .headlamp-plugin/, .env, .env.local, .eslintcache to .gitignore
- Remove .claude/settings.json and .claude/settings.local.json from .gitignore
- Create .claude/settings.local.json with enabled MCP servers
- Remove "Subagent guidance" section and hardcoded test count from CLAUDE.md
- Fix 8 component test files: replace require('./__mocks__/commonComponents.ts')
  with await import('./__mocks__/commonComponents') in vi.mock factories —
  require() cannot process TypeScript in hoisted mock context

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-03 21:30:55 +00:00

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# headlamp-tns-csi-plugin
Headlamp plugin for tns-csi CSI driver visibility and kbench benchmarking.
## Project
- **Plugin name**: `headlamp-tns-csi-plugin`
- **Provisioner**: `tns.csi.io`
- **Upstream driver**: https://github.com/fenio/tns-csi
- **Benchmark tool**: https://github.com/longhorn/kbench
- **Reference plugin**: `../headlamp-polaris-plugin`
## Commands
```bash
npm start # dev server with hot reload
npm run build # production build
npm run package # package for headlamp
npm run tsc # TypeScript type check (no emit)
npm run lint # ESLint
npm test # vitest run
npm run test:watch # vitest watch mode
```
## Architecture
```
src/
├── index.tsx # Plugin entry: registerRoute, registerSidebarEntry, etc.
├── api/
│ ├── k8s.ts # Types + filtering helpers (provisioner: tns.csi.io)
│ ├── metrics.ts # Prometheus text format parser
│ ├── kbench.ts # kbench Job/PVC lifecycle + FIO log parser
│ └── TnsCsiDataContext.tsx # Shared React context provider
└── components/
├── OverviewPage.tsx
├── StorageClassesPage.tsx
├── VolumesPage.tsx
├── SnapshotsPage.tsx
├── MetricsPage.tsx
├── BenchmarkPage.tsx # ONLY write operation in the plugin
├── DriverStatusCard.tsx
└── PVCDetailSection.tsx # Injected into Headlamp PVC detail view
```
## Key constants
- Provisioner: `tns.csi.io`
- Controller pod selector: `app.kubernetes.io/name=tns-csi-driver,app.kubernetes.io/component=controller`
- Node pod selector: `app.kubernetes.io/name=tns-csi-driver,app.kubernetes.io/component=node`
- Driver namespace: `kube-system`
- Metrics port: `8080`
- kbench image: `yasker/kbench:latest`
- kbench managed-by label: `app.kubernetes.io/managed-by=headlamp-tns-csi-plugin`
## Code conventions
- Functional React components only — no class components
- All imports from `@kinvolk/headlamp-plugin/lib` and `@kinvolk/headlamp-plugin/lib/CommonComponents`
- No additional UI libraries (no MUI direct imports, no Ant Design, etc.)
- TypeScript strict mode — no `any`, use `unknown` + type guards at API boundaries
- Slide-in detail panels follow the polaris plugin pattern: URL hash state, Escape to close, backdrop overlay
- Context provider (`TnsCsiDataProvider`) wraps each route component in `index.tsx`
- Tests: vitest + @testing-library/react, mock with `vi.mock('@kinvolk/headlamp-plugin/lib', ...)`
## Testing
All tests must pass before committing:
```bash
npm test
npm run tsc # must exit 0
```
Mock pattern for headlamp APIs:
```typescript
vi.mock('@kinvolk/headlamp-plugin/lib', () => ({
ApiProxy: { request: vi.fn().mockResolvedValue({ items: [] }) },
K8s: {
ResourceClasses: {
StorageClass: { useList: vi.fn(() => [[], null]) },
PersistentVolume: { useList: vi.fn(() => [[], null]) },
PersistentVolumeClaim: { useList: vi.fn(() => [[], null]) },
},
},
}));
```