> ## Documentation Index
> Fetch the complete documentation index at: https://docs.deployerp.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Server Management Overview

> Comprehensive guide to managing servers in deployERP

## Introduction

Servers are the foundation of your Odoo deployment infrastructure. deployERP simplifies server management by automating provisioning, configuration, monitoring, and maintenance tasks.

## What is a Server?

In deployERP, a server is a virtual machine that:

* Hosts one or more Odoo instances
* Runs PostgreSQL database server
* Includes all necessary dependencies
* Is optimized for Odoo performance

<Info>
  Each server is provisioned in your own cloud account, giving you complete control and ownership of your infrastructure.
</Info>

## Server Lifecycle

<Steps>
  <Step title="Provisioning">
    Automated creation and initial configuration
  </Step>

  <Step title="Configuration">
    Custom settings, SSH keys, and security setup
  </Step>

  <Step title="Deployment">
    Installing Odoo instances and applications
  </Step>

  <Step title="Monitoring">
    Continuous health checks and performance tracking
  </Step>

  <Step title="Maintenance">
    Updates, backups, and optimization
  </Step>

  <Step title="Scaling">
    Resource adjustment based on demand
  </Step>
</Steps>

## Server Components

Each deployERP server includes:

### System Software

* **Operating System**: Ubuntu 22.04 LTS
* **Python**: Multiple versions (3.8, 3.9, 3.10, 3.11)
* **PostgreSQL**: Version 14 or 15
* **Nginx**: Reverse proxy and SSL termination
* **Supervisor**: Process management
* **Redis**: Caching and sessions

### Odoo Requirements

* **wkhtmltopdf**: PDF generation
* **Node.js**: Asset compilation
* **Python packages**: All Odoo dependencies
* **System libraries**: Image processing, XML, etc.

### Management Tools

* **deployERP Agent**: Monitoring and management
* **Fail2ban**: Security and DDoS protection
* **UFW**: Firewall configuration
* **Certbot**: SSL certificate management

## Server Types

### Production Servers

Optimized for performance and reliability:

* High-performance settings
* Automated backups
* 24/7 monitoring
* Auto-healing enabled
* Multi-worker configuration

### Development Servers

Cost-effective for testing:

* Debug mode available
* Lower resource allocation
* Flexible configuration
* Quick provisioning

### Staging Servers

Mirror production environments:

* Production-like settings
* Separate database
* Testing ground for updates
* Performance profiling

## Server Management Features

### Monitoring Dashboard

Real-time metrics including:

* CPU utilization
* Memory usage
* Disk I/O
* Network traffic
* Database connections
* Response times

### Auto-Healing

Automatic recovery from common issues:

* Service restarts
* Memory leak detection
* Disk space management
* Connection pool recovery
* Process resurrection

### Security Features

Built-in security measures:

* Firewall rules
* DDoS protection
* SSH key management
* SSL/TLS encryption
* Regular security updates

## Server Configuration

### Resource Allocation

| Component | Configurable       | Range      |
| --------- | ------------------ | ---------- |
| vCPU      | Yes                | 1-64 cores |
| RAM       | Yes                | 2-256 GB   |
| Storage   | Yes                | 20GB-16TB  |
| Bandwidth | Provider-dependent | Varies     |

### Network Configuration

* **Public IP**: Automatically assigned
* **Private networking**: Available on supported providers
* **Firewall rules**: Customizable
* **Load balancing**: Enterprise feature

### Database Configuration

PostgreSQL settings optimized for Odoo:

* Connection pooling
* Memory allocation
* Query optimization
* Automatic vacuuming
* Backup scheduling

## Performance Optimization

deployERP automatically optimizes servers for Odoo:

### Worker Configuration

```python theme={null}
# Automatic calculation based on resources
workers = (cpu_cores * 2) + 1
max_cron_threads = 2
limit_memory_hard = ram_gb * 0.9 * 1024 * 1024 * 1024
limit_memory_soft = ram_gb * 0.8 * 1024 * 1024 * 1024
```

### Caching Strategy

* Static asset caching
* Database query caching
* Session storage in Redis
* CDN integration (optional)

## Server States

Servers can be in various states:

| State            | Description             | Actions Available |
| ---------------- | ----------------------- | ----------------- |
| **Provisioning** | Server being created    | Wait, Cancel      |
| **Running**      | Operational             | All actions       |
| **Stopped**      | Temporarily halted      | Start, Delete     |
| **Updating**     | Maintenance in progress | Wait              |
| **Error**        | Issue detected          | Diagnose, Restart |

## Backup Strategy

Automated backup features:

* Daily snapshots
* Point-in-time recovery
* Cross-region replication
* Encrypted storage
* Retention policies

<Warning>
  Always configure backups for production servers. Data loss without backups is irreversible.
</Warning>

## Scaling Options

### Vertical Scaling

Resize server resources:

* Increase CPU/RAM
* Expand storage
* Minimal downtime
* Automatic migration

### Horizontal Scaling

Add more servers:

* Load distribution
* Geographic redundancy
* High availability
* Failover support

## Monitoring Alerts

Configure alerts for:

* Resource thresholds
* Service failures
* Security events
* Backup failures
* Performance degradation

## Cost Management

Track and optimize costs:

* Resource utilization reports
* Cost breakdown by server
* Optimization recommendations
* Budget alerts

## Best Practices

<CardGroup cols={2}>
  <Card title="Regular Updates" icon="arrow-up">
    Keep servers updated with security patches
  </Card>

  <Card title="Resource Monitoring" icon="chart-line">
    Track usage patterns and scale proactively
  </Card>

  <Card title="Backup Testing" icon="shield-check">
    Regularly test backup restoration
  </Card>

  <Card title="Security Audits" icon="lock">
    Review access logs and security settings
  </Card>
</CardGroup>

## Troubleshooting

Common issues and solutions:

| Issue             | Possible Cause      | Solution                  |
| ----------------- | ------------------- | ------------------------- |
| High CPU usage    | Inefficient queries | Optimize database indexes |
| Memory errors     | Insufficient RAM    | Increase server resources |
| Slow response     | Network latency     | Use CDN or closer region  |
| Connection errors | Firewall rules      | Check security groups     |

## Related Documentation

* [Server Provisioning](/servers/provisioning)
* [Monitoring Guide](/servers/monitoring)
* [SSH Key Management](/servers/ssh-keys)
* [PostgreSQL Configuration](/advanced/postgresql)