# Cameleer Deploy Demo

## Goal

Standalone demo prototype: upload a Camel JAR, build a container image with the cameleer monitoring agent injected, deploy to k3s, and see full observability appear in cameleer-server.

## Project

New repo: `cameleer/cameleer-deploy-demo` on Gitea. Spring Boot 3 backend + React UI using `@cameleer/design-system`.

## Architecture

```
Browser (React + DS)
  ├─ Dashboard: table of deployed apps (status, resources, links)
  └─ Deploy dialog: upload JAR, configure resources/env, stream build log
        │
        ▼
Deploy Service (Spring Boot 3, Java 21, port 8082)
  ├─ POST /api/apps       — upload JAR + config, start build pipeline
  ├─ GET  /api/apps        — list deployed apps with K8s status
  ├─ GET  /api/apps/{name}/status — single app status + pod details
  ├─ GET  /api/apps/{name}/logs   — build log (stored in memory)
  ├─ DELETE /api/apps/{name}      — undeploy (kubectl delete + registry cleanup)
  │
  Build Pipeline (per deploy):
  │  1. Save JAR to temp dir
  │  2. Generate Dockerfile (JRE + agent from Maven + customer JAR)
  │  3. docker build → tag as gitea.siegeln.net/cameleer/demo-apps/<name>:<ts>
  │  4. docker push to Gitea container registry
  │  5. kubectl apply Deployment to cameleer-demo namespace
  │  6. Cleanup temp dir
  │
  └─ In-memory state (ConcurrentHashMap<String, DeployedApp>)
        │
        ├─► Gitea Container Registry (images)
        ├─► k3s cluster / cameleer-demo namespace (workloads)
        └─► cameleer-server (agents auto-register via bootstrap token)
```

## No Auth

Demo only. No authentication, no RBAC. Big "DEMO" banner in UI.

## Build Pipeline Detail

Generated Dockerfile per app:

```dockerfile
FROM eclipse-temurin:21-jre-alpine

ADD https://gitea.siegeln.net/api/packages/cameleer/maven/com/cameleer/cameleer-agent/1.0-SNAPSHOT/cameleer-agent-1.0-SNAPSHOT.jar /opt/cameleer/agent.jar

COPY app.jar /opt/app/app.jar

ENV CAMELEER_SERVER_URL=http://cameleer-server.cameleer.svc:8081
ENV CAMELEER_APP_NAME=<user-provided-name>
ENV CAMELEER_AUTH_TOKEN=<bootstrap-token>

ENTRYPOINT ["java", "-javaagent:/opt/cameleer/agent.jar", "-jar", "/opt/app/app.jar"]
```

Agent snapshot JAR downloaded at build time from Gitea Maven registry. Bootstrap token configured via deploy service env var.

## K8s Deployment

Each app gets a Deployment in the `cameleer-demo` namespace:

- Resource requests/limits from user config (defaults: 250m/256Mi requests, 500m/512Mi limits)
- User-provided env vars injected into the container spec
- No Service or Ingress (apps only need outbound access to cameleer-server)
- Labels: `app.kubernetes.io/managed-by: cameleer-deploy`, `cameleer/app-name: <name>`

## Data Model (In-Memory)

```java
record DeployedApp(
    String name,
    String imageName,
    String imageTag,
    DeployStatus status,       // BUILDING, PUSHING, DEPLOYING, RUNNING, FAILED, DELETED
    String statusMessage,
    ResourceConfig resources,
    Map<String, String> envVars,
    Instant createdAt
)

record ResourceConfig(
    String cpuRequest,    // default "250m"
    String memoryRequest, // default "256Mi"
    String cpuLimit,      // default "500m"
    String memoryLimit    // default "512Mi"
)
```

On GET /api/apps, reconcile status with actual K8s pod phase via kubectl. On startup, scan `cameleer-demo` namespace to rediscover deployed apps.

## UI

**Dashboard page:**

| Column | Content |
|--------|---------|
| Name | Clickable → cameleer-server exchanges page |
| Status | Badge: Running / Pending / Failed / Building |
| Image | Image tag (mono text) |
| Resources | CPU/Memory limits |
| Age | Time since deploy |
| Actions | Delete button with confirm dialog |

"Deploy Application" button opens a dialog:
- App Name (text, validated: lowercase, alphanumeric, hyphens)
- JAR File (drag-and-drop, accepts .jar)
- Resource Limits: CPU + Memory (two pairs: requests and limits)
- Environment Variables: key/value table with add/remove
- Deploy button → switches to streaming build log view
- On success: closes dialog, app appears in table
- On failure: log stays visible with error

Status polling: GET /api/apps every 5 seconds.

All components from @cameleer/design-system. CSS modules for layout.

## Configuration

Deploy service env vars:
- `CAMELEER_SERVER_URL` — cameleer-server URL for agent registration (default: `http://cameleer-server.cameleer.svc:8081`)
- `CAMELEER_BOOTSTRAP_TOKEN` — bootstrap token for agent registration
- `CAMELEER_REGISTRY` — container registry prefix (default: `gitea.siegeln.net/cameleer/demo-apps`)
- `CAMELEER_AGENT_MAVEN_URL` — URL for agent snapshot JAR
- `CAMELEER_DEMO_NAMESPACE` — K8s namespace for deployed apps (default: `cameleer-demo`)
- `KUBECONFIG` — path to kubeconfig (or in-cluster config)

## Tech Stack

- Backend: Spring Boot 3.4, Java 21, spring-web
- Frontend: React 19, Vite, @cameleer/design-system, TypeScript
- Build: Maven (backend), npm (frontend)
- Container: Docker (multi-stage build)
- Deploy: k3s at 192.168.50.86, namespace `cameleer-demo`
- Registry: Gitea container registry
- Agent: cameleer-agent 1.0-SNAPSHOT from Gitea Maven registry

## Out of Scope

- Authentication / RBAC
- Multi-tenancy
- Persistent storage (in-memory only)
- Ingress for deployed apps
- Horizontal scaling
- CI/CD pipeline for the demo app itself
- Health probes on deployed apps
- Log streaming from running apps (only build logs)