# Phase 2: Docker Compose Deployment

## Overview

Phase 2 deploys multi-service docker-compose stacks to Phase 1 VMs. Each region gets a region-specific docker-compose file with services including Besu, FireFly, Cacti, Chainlink, databases, and monitoring.

## Prerequisites

1. **Phase 1 must be deployed first** - Phase 2 depends on Phase 1 VMs
2. **SSH access to VMs** - Requires:
   - SSH private key corresponding to the public key used in Phase 1
   - Network connectivity to VMs (VPN/ExpressRoute/Cloudflare Tunnel if using private IPs)
3. **Docker Engine installed** - Phase 1 cloud-init installs Docker, but verify it's running

## Architecture

### Region to Docker Compose Mapping

- **Central US (centralus)** → `docker-compose.cus.yml`
  - Besu + FireFly Core A + Cacti Core A + Chainlink A + shared DBs + agents

- **East US (eastus)** → `docker-compose.eus.yml`
  - Besu + FireFly Core B + primary FireFly/Cacti DBs + Chainlink B + agents

- **East US 2 (eastus2)** → `docker-compose.eus2.yml`
  - Besu + FireFly DataExchange A + IPFS + Cacti UI + Prometheus primary + agents

- **West US (westus)** → `docker-compose.wus.yml`
  - Besu + FireFly DataExchange B + Prometheus secondary + Grafana + Alertmanager + Chainlink C + agents

- **West US 2 (westus2)** → `docker-compose.wus2.yml`
  - Besu + Loki + Log UI + FireFly Postgres Replica + Cacti Core B + agents

## Configuration

### Variables

Create a `terraform.tfvars` file or set environment variables:

```hcl
environment = "prod"
vm_admin_username = "besuadmin"
ssh_private_key_path = "/path/to/ssh/private/key"

# Phase 1 VM information - pass from Phase 1 outputs
phase1_vm_info = {
  centralus = {
    vm_names    = ["az-p-cus-vm-besu-node-0"]
    private_ips = ["10.3.1.4"]
    public_ips  = []
    resource_group = "az-p-cus-rg-comp-001"
    region      = "centralus"
  }
  eastus = {
    vm_names    = ["az-p-eus-vm-besu-node-0"]
    private_ips = ["10.1.1.4"]
    public_ips  = []
    resource_group = "az-p-eus-rg-comp-001"
    region      = "eastus"
  }
  # ... similar for other regions
}

docker_compose_source_path = "../../../docker/phase2"
```

### Getting Phase 1 VM Information

If Phase 1 was deployed via Terraform, you can get the VM information from Phase 1 outputs:

```bash
cd terraform/phases/phase1
terraform output -json phase1_us_regions > phase1-outputs.json
```

Then use a script to convert Phase 1 outputs to Phase 2 `phase1_vm_info` format.

## Deployment

### Method 1: Terraform Apply

```bash
cd terraform/phases/phase2
terraform init
terraform plan
terraform apply
```

### Method 2: Deployment Script

```bash
cd terraform/phases/phase2/scripts
./deploy-phase2.sh [region]
```

If no region is specified, deploys to all regions.

## Service Management

### Start Services

```bash
cd terraform/phases/phase2/scripts
./start-services.sh [region]
```

### Stop Services

```bash
cd terraform/phases/phase2/scripts
./stop-services.sh [region]
```

### Check Status

```bash
cd terraform/phases/phase2/scripts
./status.sh [region]
```

### Manual Service Management

SSH to the VM and use systemctl:

```bash
# Start
sudo systemctl start phase2-stack.service

# Stop
sudo systemctl stop phase2-stack.service

# Restart
sudo systemctl restart phase2-stack.service

# Status
sudo systemctl status phase2-stack.service

# View logs
sudo journalctl -u phase2-stack.service -f
```

Or use docker compose directly:

```bash
cd /opt/docker-compose
docker compose ps
docker compose logs -f
docker compose restart
```

## Terraform Outputs

### View Deployment Status

```bash
cd terraform/phases/phase2
terraform output deployment_status
terraform output systemd_service_status
terraform output management_commands
```

### Example Output

```json
{
  "centralus": {
    "region": "centralus",
    "vm_name": "az-p-cus-vm-besu-node-0",
    "compose_file": "docker-compose.cus.yml",
    "status": "deployed",
    "docker_compose_path": "/opt/docker-compose/docker-compose.yml"
  },
  ...
}
```

## File Locations on VMs

- **Docker Compose File**: `/opt/docker-compose/docker-compose.yml`
- **Systemd Service**: `/etc/systemd/system/phase2-stack.service`
- **Volume Mounts**:
  - Besu: `/opt/besu/{data,config,keys,logs}`
  - FireFly: `/opt/firefly/{postgres,postgres-primary,postgres-replica}`
  - Cacti: `/opt/cacti/{postgres,postgres-primary}`
  - Prometheus: `/opt/prometheus`
  - Grafana: `/opt/grafana`, `/opt/grafana-logs`
  - Alertmanager: `/opt/alertmanager`
  - Loki: `/opt/loki/{data,config}`
  - IPFS: `/opt/ipfs/data`
  - Promtail: `/opt/promtail`

## Network Connectivity

**Important**: Phase 1 VMs use private IPs only. To deploy Phase 2, ensure:

1. **VPN/ExpressRoute** is configured to access VM private IPs, OR
2. **Cloudflare Tunnel** is running on VMs, OR
3. **Bastion Host** is configured for SSH access, OR
4. VMs are temporarily assigned public IPs for deployment

The Terraform provisioner will use:
- Private IP if available
- Public IP as fallback
- Requires SSH key path to be set in `ssh_private_key_path` variable

## Troubleshooting

### SSH Connection Issues

If you cannot SSH to VMs:
1. Verify network connectivity (VPN/ExpressRoute/Bastion)
2. Check SSH key path and permissions
3. Verify VM is running and accessible
4. Check NSG rules allow SSH from your IP

### Docker Compose Issues

If services fail to start:
1. Check docker compose file syntax: `docker compose config`
2. Verify all required directories exist with correct permissions
3. Check docker logs: `docker compose logs`
4. Verify systemd service: `sudo systemctl status phase2-stack.service`

### Volume Mount Issues

If volumes are not accessible:
1. Verify directories exist: `ls -la /opt/*`
2. Check permissions: `sudo chown -R besuadmin:besuadmin /opt/*`
3. Ensure Docker has access: `sudo usermod -aG docker besuadmin`

## Next Steps

After Phase 2 deployment:
1. Verify all services are running: `./status.sh all`
2. Configure service-specific settings (database passwords, API keys, etc.)
3. Set up monitoring and alerting
4. Configure cross-service connectivity (FireFly to Besu, etc.)
5. Test end-to-end workflows

## Related Documentation

- Phase 1 Deployment: `../phase1/README.md`
- Docker Compose Files: `../../../docker/phase2/`
- Service Documentation: See individual service documentation in `docs/`