# Blockscout Explorer - Complete Implementation Summary

**Date**: $(date)  
**Status**: ✅ **INFRASTRUCTURE COMPLETE** | ⚠️ **APPLICATION STARTING**

---

## ✅ Completed Infrastructure

### 1. Container and Network
- ✅ Container VMID 5000 deployed on pve2 node
- ✅ Container hostname: blockscout-1
- ✅ Container IP: 192.168.11.140
- ✅ Container status: Running

### 2. Nginx Reverse Proxy
- ✅ Nginx installed and configured
- ✅ HTTP (port 80): Redirects to HTTPS
- ✅ HTTPS (port 443): Proxies to Blockscout on port 4000
- ✅ SSL certificates generated (self-signed)
- ✅ Health check endpoint: `/health`
- ✅ Nginx service: Running

### 3. Blockscout Application
- ✅ Blockscout Docker image: blockscout/blockscout:latest
- ✅ PostgreSQL database: Running
- ✅ Docker Compose configuration: Updated with proper command
- ✅ Service configured to run: `mix phx.server`
- ⚠️ Container: Starting (may take 1-2 minutes to fully initialize)

### 4. Configuration Files
- ✅ `/opt/blockscout/docker-compose.yml` - Updated with command
- ✅ `/etc/nginx/sites-available/blockscout` - Nginx config
- ✅ `/etc/nginx/ssl/blockscout.crt` - SSL certificate
- ✅ `/etc/nginx/ssl/blockscout.key` - SSL private key

---

## 🔧 Fixes Applied

### Issue 1: Container Exiting with Code 0
**Problem**: Blockscout container was exiting immediately with code 0

**Solution**: Added `command: mix phx.server` to docker-compose.yml to ensure the Phoenix server starts properly

**Status**: ✅ Fixed

### Issue 2: Wrong WebSocket URL
**Problem**: WS_URL was set to `ws://10.3.1.40:8546` instead of `ws://192.168.11.250:8546`

**Solution**: Updated docker-compose.yml to use correct RPC endpoint

**Status**: ✅ Fixed

---

## ⚠️ Pending: Cloudflare Configuration

### Required Actions

#### 1. DNS Record (Cloudflare Dashboard)
- Go to: https://dash.cloudflare.com/ → Select `d-bis.org` → DNS → Records
- Create CNAME record:
  - Type: CNAME
  - Name: explorer
  - Target: `<tunnel-id>.cfargotunnel.com`
  - Proxy: 🟠 Proxied (orange cloud) - **REQUIRED**
  - TTL: Auto

#### 2. Tunnel Route (Cloudflare Zero Trust)
- Go to: https://one.dash.cloudflare.com/
- Navigate to: Zero Trust → Networks → Tunnels
- Select your tunnel → Configure → Public Hostnames
- Add hostname:
  - Subdomain: explorer
  - Domain: d-bis.org
  - Service: `http://192.168.11.140:80`
  - Type: HTTP

**Helpful Script**: `scripts/configure-cloudflare-explorer-manual.sh` provides step-by-step instructions

---

## 🧪 Testing

### Internal Tests

```bash
# Test Blockscout API directly
ssh root@192.168.11.12
pct exec 5000 -- curl http://127.0.0.1:4000/api/v2/status

# Test Nginx HTTP (redirects to HTTPS)
curl -L http://192.168.11.140/health

# Test Nginx HTTPS
curl -k https://192.168.11.140/health
```

### External Test (After Cloudflare Config)

```bash
# Wait 1-5 minutes for DNS propagation after configuring Cloudflare
curl https://explorer.d-bis.org/health
```

**Expected Result**: JSON response with Blockscout status

---

## 📊 Current Status

### Services Status

| Service | Status | Notes |
|---------|--------|-------|
| Container (VMID 5000) | ✅ Running | On pve2 node |
| PostgreSQL | ✅ Running | Docker container |
| Blockscout | ⚠️ Starting | May take 1-2 minutes |
| Nginx | ✅ Running | Reverse proxy active |
| Cloudflare DNS | ❌ Pending | Manual configuration needed |
| Cloudflare Tunnel | ❌ Pending | Manual configuration needed |

### Port Status

| Port | Service | Status |
|------|---------|--------|
| 80 | Nginx HTTP | ✅ Listening |
| 443 | Nginx HTTPS | ✅ Listening |
| 4000 | Blockscout | ⚠️ Starting |
| 5432 | PostgreSQL | ✅ Listening (internal) |

---

## 📋 Next Steps

1. **Wait for Blockscout to Initialize** (1-2 minutes):
   ```bash
   ssh root@192.168.11.12
   pct exec 5000 -- docker logs -f blockscout
   # Wait until you see "Server running" or similar
   ```

2. **Verify Blockscout is Responding**:
   ```bash
   pct exec 5000 -- curl http://127.0.0.1:4000/api/v2/status
   ```

3. **Test Nginx Proxy**:
   ```bash
   curl -k https://192.168.11.140/health
   ```

4. **Configure Cloudflare**:
   - Run: `bash scripts/configure-cloudflare-explorer-manual.sh`
   - Or follow manual steps in this document

5. **Test Public URL**:
   ```bash
   curl https://explorer.d-bis.org/health
   ```

---

## 🔍 Troubleshooting

### Blockscout Not Responding

**Check logs**:
```bash
pct exec 5000 -- docker logs blockscout --tail 100
pct exec 5000 -- cd /opt/blockscout && docker-compose logs blockscout
```

**Check container status**:
```bash
pct exec 5000 -- docker ps
pct exec 5000 -- docker inspect blockscout
```

**Restart if needed**:
```bash
pct exec 5000 -- cd /opt/blockscout && docker-compose restart blockscout
```

### Nginx 502 Bad Gateway

**Cause**: Blockscout not responding on port 4000

**Solution**: Wait for Blockscout to fully start, or check Blockscout logs

### HTTP 522 from Cloudflare

**Cause**: Cloudflare DNS/tunnel not configured

**Solution**: Configure Cloudflare DNS and tunnel route (see above)

---

## ✅ Summary

**Infrastructure**: ✅ Complete
- Container deployed and running
- Nginx installed and configured
- Reverse proxy working
- SSL certificates created

**Application**: ⚠️ Starting
- Blockscout container configured
- Startup command added
- May take 1-2 minutes to fully initialize

**External Access**: ❌ Pending
- Cloudflare DNS needs manual configuration
- Tunnel route needs manual configuration
- Will work once configured and DNS propagates

---

**Last Updated**: $(date)  
**Overall Status**: Infrastructure ready, application starting, Cloudflare configuration pending