feat: add Hetzner Cloud server template

[melmathari]

Closes #209

Description

Create Terraform template for Hetzner Cloud servers with networking and volumes

Type of Change

• New module
• Bug fix
• Feature/enhancement
• Documentation
• Other

Testing & Validation

• Tests pass (bun test)
• Code formatted (bun run fmt)
• Changes tested locally

/claim #209

# Directory
cd registry/melmathari/templates/hetzner-cloud/

# Initialize
terraform init

# Validate
terraform validate

# Plan (see what will be created)
terraform plan

# Apply - This will create real resources and cost money
terraform apply

# Destroy everything
terraform destroy

# Hetzner Cloud API Token - REPLACE WITH YOUR ACTUAL TOKEN
# Get your token from: https://console.hetzner.cloud/ -> Projects -> Security -> API Tokens
# IMPORTANT: Keep this token secure and never commit it to version control
hcloud_token = "TOKEN_GOES_HERE"

# Optional: Override default parameter values for local testing
# server_type     = "cx22"
# server_image    = "ubuntu-22.04"
# server_location = "fsn1"
# volume_size     = 20

# Optional: SSH key ID if you want SSH access
# ssh_key_id = "YOUR_SSH_KEY"

Files & Resources

plan.debug
.terraform.lock.zip

Video

Please note in the video the memory size of certain servers was not set properly. I have updated this in the last version.

chrome_bL0ejpcoui.mp4

[Copilot]

Pull Request Overview

This PR adds a comprehensive Hetzner Cloud server template for Coder workspaces that supports dynamic server configuration, persistent storage, and networking.

• Implements dynamic server configuration through JSON metadata for server types, locations, and images
• Provides server type/location validation to prevent invalid resource combinations
• Creates persistent volumes for home directories that survive workspace restarts with proper lifecycle management

Reviewed Changes

Copilot reviewed 6 out of 8 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
registry/melmathari/templates/hetzner-cloud/main.tf	Main Terraform configuration implementing the Hetzner Cloud template with dynamic parameters, validation, and resource provisioning
registry/melmathari/templates/hetzner-cloud/hetzner-config.json	JSON configuration defining available server types, locations, images, and availability constraints
registry/melmathari/templates/hetzner-cloud/cloud-config.yaml.tftpl	Cloud-init template for server initialization and Coder agent setup
registry/melmathari/templates/hetzner-cloud/README.md	Comprehensive documentation covering setup, configuration, troubleshooting, and usage
registry/melmathari/README.md	Author profile and bio information
.github/typos.toml	Updated spell checker configuration to allow Hetzner-specific terms

[matifali]

@melmathari, you should be able to run bun fmt to fix all formatting issues.

[melmathari]

@matifali I just did, just checked my logs from yesterday I didn't use write, so was under the assumption that it already did so before I committed. Happy to take another look if anything else pops up.

Appreciate your time and feedback.

[melmathari]

@matifali Apologies as i'm new to the project, i accidentally named the folder images instead of .images. Also saw that the other checks now all passed, which is great.

Appreciate your time.