# VPS Context — tech.onegroup.co.in

**OS**: Ubuntu 24.04 LTS | **Disk**: 387GB (41GB used) | **Domain**: tech.onegroup.co.in

## Architecture

All apps run as Docker Compose projects in `/docker/`. Caddy handles reverse proxy + auto-TLS on the `shared-proxy` Docker network.

```
Internet → Caddy (:80/:443, auto-TLS)
             ├── postiz.tech.onegroup.co.in   → postiz-aho4-postiz-1:5000
             ├── n8n.tech.onegroup.co.in       → n8n-gyyi-n8n-1:5678
             ├── skyvern.tech.onegroup.co.in   → skyvern-2m2d-skyvern-1:8000 (/api/*)
             │                                   skyvern-2m2d-skyvern-ui-1:8080 (/)
             ├── listmonk.tech.onegroup.co.in  → listmonk-7t1c-listmonk-1:9000
             ├── evolution.tech.onegroup.co.in → evolution-api-fgxi-api-1:8080
             ├── dograh.tech.onegroup.co.in    → dograh-aau2-ui-1:3010
             └── paperclip.tech.onegroup.co.in → paperclip-tqtp-paperclip-1:3100
```

## Applications

### 1. Caddy — `/docker/caddy/`
Reverse proxy with automatic HTTPS (Let's Encrypt). Config: `Caddyfile`. Image: `caddy:2-alpine`. Connected to `shared-proxy` network.

### 2. Postiz — `/docker/postiz-aho4/`
Social media scheduling app. Image: `ghcr.io/gitroomhq/postiz-app:latest`.
- **Stack**: Next.js app + PostgreSQL 17 + Redis 7 + Temporal workflow engine + Elasticsearch 7.17
- **Temporal** has its own PostgreSQL 16 instance
- **Integrations**: Facebook, LinkedIn OAuth
- **Config**: `.env` file with JWT_SECRET, DB creds, OAuth keys

### 3. N8N — `/docker/n8n-gyyi/`
Workflow automation platform. Image: `docker.n8n.io/n8nio/n8n`.
- **Stack**: N8N + webhook support, runners enabled
- **Timezone**: Asia/Kolkata
- **Config**: `.env` file

### 4. Skyvern — `/docker/skyvern-2m2d/`
Browser automation / RPA tool. Images: `public.ecr.aws/skyvern/skyvern:latest` + UI.
- **Stack**: FastAPI + Streamlit UI + PostgreSQL 14 + headful Chromium
- **Ports**: API (8000), WebSocket (9222), UI (8080), Metrics (9090), VNC (6080)
- **AI**: OpenAI GPT-5 integration
- **Config**: `.env` file with API keys

### 5. ListMonk — `/docker/listmonk-7t1c/`
Email/newsletter platform. Image: `listmonk/listmonk:v6.0.0`.
- **Stack**: ListMonk app + PostgreSQL 18
- **Timezone**: Asia/Kolkata
- **Config**: `.env` file

### 6. Evolution API — `/docker/evolution-api-fgxi/`
WhatsApp/messaging API. Image: `evoapicloud/evolution-api:latest`.
- **Stack**: Evolution API + PostgreSQL 15 + Redis
- **Features**: QR code auth (limit 30), message saving (contacts, chats, labels, history)
- **DB client name**: evolution_hostinger
- **Config**: `.env` file

### 7. Dograh — `/docker/dograh-aau2/`
Voice AI platform. Images: `dograhai/dograh-api:latest` + `dograhai/dograh-ui:latest`.
- **Stack**: FastAPI backend + Next.js UI + PostgreSQL 17 (pgvector) + Redis 7 + MinIO (S3-compatible storage)
- **Features**: Voice audio storage in MinIO, vector embeddings via pgvector
- **Config**: `.env` file with JWT, MinIO creds

### 8. Paperclip — `/docker/paperclip-tqtp/`
Claude Code assistant platform (Hostinger). Image: `ghcr.io/hostinger/hvps-paperclip:b5776ae`.
- **Stack**: Single container with Docker-in-Docker
- **Features**: Accesses host Docker socket, runs Claude Code instances
- **Admin**: apoorv@onecity.in
- **Data**: `/docker/paperclip-tqtp/data/` (contains Claude Code project instances)
- **Config**: `.env` file

## Docker Infrastructure

- **Shared network**: `shared-proxy` (external, connects all apps to Caddy)
- **Volumes**: 26+ named volumes for PostgreSQL (v14–18, pgvector), Redis, Elasticsearch, MinIO, app data
- **Each project** has its own internal Docker network for inter-service communication

## System Services

| Service | Status | Notes |
|---------|--------|-------|
| Docker | Active | Container runtime |
| Caddy | Active | Reverse proxy (via Docker) |
| SSH | Active | Port 22 |
| Fail2ban | Active | Intrusion prevention |
| og-postiz.service | Inactive | Legacy systemd unit for Postiz (unused, references missing user svc-postiz) |

## User Home — `/home/office/`

- `.claude/` — Claude Code config, plugins (GitHub, Telegram, Supabase, Greptile MCP servers), credentials, sessions
- `.mcp.json` — MCP config (Upstash, Context7)
- `.ssh/` — SSH keys
- No custom cron jobs configured

## Key Operations

```bash
# Manage any app
cd /docker/<app-dir> && docker compose up -d
cd /docker/<app-dir> && docker compose down
cd /docker/<app-dir> && docker compose logs -f

# Caddy reload after Caddyfile edit
cd /docker/caddy && docker compose exec caddy caddy reload --config /etc/caddy/Caddyfile

# View all running containers
docker ps

# Check disk usage
df -h
```