digitalocean-coder

# DigitalOcean Coder

## Overview

DigitalOcean provides simple, developer-friendly cloud infrastructure. This skill covers OpenTofu/Terraform patterns for DO resources.

## Provider Setup

```hcl
terraform {
  required_providers {
    digitalocean = {
      source  = "digitalocean/digitalocean"
      version = "~> 2.0"
    }
  }
}

provider "digitalocean" {
  # Token from environment: DIGITALOCEAN_TOKEN
}
```

## VPC (Virtual Private Cloud)

```hcl
resource "digitalocean_vpc" "main" {
  name     = "${var.project}-${var.environment}-vpc"
  region   = var.region
  ip_range = "10.10.0.0/16"

  description = "VPC for ${var.project} ${var.environment}"
}
```

## Droplets (Compute)

### Basic Droplet

```hcl
resource "digitalocean_droplet" "app" {
  name     = "${var.project}-${var.environment}-app"
  region   = var.region
  size     = var.droplet_size  # s-1vcpu-1gb, s-2vcpu-4gb, etc.
  image    = "ubuntu-22-04-x64"
  vpc_uuid = digitalocean_vpc.main.id

  ssh_keys   = var.ssh_key_ids
  monitoring = true
  ipv6       = false

  tags = [var.project, var.environment]
}
```

### Droplet with Cloud-Init

```hcl
resource "digitalocean_droplet" "app" {
  name     = "${var.project}-app"
  region   = var.region
  size     = "s-1vcpu-2gb"
  image    = "ubuntu-22-04-x64"
  vpc_uuid = digitalocean_vpc.main.id

  ssh_keys   = var.ssh_key_ids
  monitoring = true

  user_data = <<-EOT
    #cloud-config
    package_update: true
    packages:
      - docker.io
      - docker-compose-plugin
    users:
      - name: deploy
        groups: docker
        sudo: ALL=(ALL) NOPASSWD:ALL
        shell: /bin/bash
        ssh_authorized_keys:
          - ${var.deploy_ssh_key}
    runcmd:
      - systemctl enable --now docker
      - sed -i 's/PermitRootLogin yes/PermitRootLogin no/' /etc/ssh/sshd_config
      - systemctl restart sshd
  EOT

  tags = [var.project]
}
```

### Common Droplet Sizes

| Size | vCPUs | Memory | Use Case |
|------|-------|--------|----------|
| `s-1vcpu-1gb` | 1 | 1 GB