teutat3s
02a146c507
use opentofu encrypted state feature https://opentofu.org/docs/language/state/encryption/#new-project
62 lines
1.5 KiB
Markdown
62 lines
1.5 KiB
Markdown
# Changing DNS entries
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Our current DNS provider is [namecheap](https://www.namecheap.com/).
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We use [OpenTofu](https://opentofu.org) to declaratively manage our pub.solar DNS records.
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### Initial setup
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You will need to setup the following [namecheap API credentials](https://www.namecheap.com/support/api/intro),
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look for "namecheap API key" in the pub.solar Keepass database.
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```
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NAMECHEAP_API_KEY
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NAMECHEAP_API_USER
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NAMECHEAP_USER_NAME
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```
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You will probably also need to add your external IP to the [API allow list](https://ap.www.namecheap.com/settings/tools/apiaccess/whitelisted-ips).
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```
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dig -4 ip @dns.toys
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```
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Now, change into the terraform directory and initialize the terraform providers. To decrypt existing state,
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search for "terraform state passphrase" in the pub.solar Keepass database.
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```
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cd terraform
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export TF_VAR_state_passphrase=$(secret-tool lookup pub.solar terraform-state-passphrase-dns)
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alias tofu="terraform-backend-git --access-logs --tf tofu git terraform"
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tofu init
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```
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Make your changes, e.g. in `dns.tf`.
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```
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$EDITOR dns.tf
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```
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Plan your changes using:
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```
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tofu plan -out pub-solar-infra.plan
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```
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After verification, apply your changes with:
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```
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tofu apply "pub-solar-infra.plan"
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```
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### Useful links
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We use terraform-backend-git remote backend with opentofu state encryption for collaboration.
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- https://github.com/plumber-cd/terraform-backend-git
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- https://opentofu.org/docs/language/state/encryption
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Namecheap Terraform provider docs:
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- https://registry.terraform.io/providers/namecheap/namecheap/latest/docs
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