External resources

WIP documents

These resources are optional, the homelab still works without them but will lack some features like trusted certificates and offsite backup

Although I try to keep the amount of external resources to the minimum, there's still need for a few of them. Below is a list of external resources and why we need them.

Terraform Cloud:
- Workspace to store the state for external resources
Cloudflare:
- DNS
- DNS-01 challenge for Let's Encrypt
- Tunnel to public services to the internet without port-forwarding
Backblaze:
- B2 storage with S3 compatible API for offsite backup

This layer will deploy resources that require external dependencies using the following provisioners:

Terraform:
- Create external resources
- Add external secrets to namespaces
- Create an ApplicationSet
ArgoCD (via the ApplicationSet created by Terraform):
- Deploy Helm charts in the subdirectories

Prerequisites

Create Terraform workspace

TODO

Create Cloudflare API token

https://dash.cloudflare.com/profile/api-tokens

Terraform API token summary:

This API token will affect the below accounts and zones, along with their respective permissions

└── Khue Doan - Argo Tunnel:Edit, Account Settings:Read
    └── khuedoan.com - Zone:Read, DNS:Edit

Client IP Address Filtering

└── Is in - 117.xxx.xxx.xxx, 2402:xxx:xxx:xxx:xxx:xxx:xxx:xxx

Create Backblaze API key

https://secure.backblaze.com/app_keys.htm

Name of Key: Homelab
Allow access to Bucket(s): All
Type of Access: Read and Write

Deploy

Export environment variables for API keys:

export CLOUDFLARE_API_TOKEN=xxx
export B2_APPLICATION_KEY_ID=xxx
export B2_APPLICATION_KEY=xxx

Apply Terraform:

make

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