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Merge pull request #50 from beatz174-bit/codex/update-documentation-for-full-crud-support

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docs: align provider documentation with full CRUD support for domains and records
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beatz174-bit
2026-05-04 01:04:05 +10:00
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AGENTS.md
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Build and maintain a standalone Terraform provider for Dynu DNS and domains.
## Scope
Current phase is **read-only**.
This provider supports full CRUD for Dynu DNS domains and DNS records.
Implement:
- Provider configuration
- Environment variable support for credentials
- Read-only data sources:
Current inventory:
### Resources
- `dynu_domain` (CRUD + import)
- `dynu_dns_record` (CRUD + import)
### Data sources
- `dynu_domains`
- `dynu_domain`
- `dynu_dns_records`
Do not implement in this phase:
- Any Terraform resources with create/update/delete
- Any write HTTP methods
## Language and framework
- Language: Go
- Framework: HashiCorp Terraform Plugin Framework
@@ -30,6 +29,23 @@ Do not implement in this phase:
- Handle pagination and API errors clearly
- Never log secrets or credentials
## Implementation expectations for agents
When making changes, agents must:
- preserve backwards compatibility where possible
- ensure Terraform idempotency (no diff after apply)
- validate all API interactions against Dynu behaviour
- maintain consistent schema design (`optional` vs `computed` vs `required`)
- ensure tests pass before adding new features
## DNS record type guidance
- Multiple DNS record types are supported, including `A`, `AAAA`, `CNAME`, `MX`, `TXT`, `SRV`, and `CAA` fields exposed by schema.
- Apply type-specific handling consistently:
- `MX`/`SRV`: ensure priority semantics are correct.
- `SRV`: ensure `weight` and `port` handling is preserved.
- `TXT`: preserve exact value semantics and quoting expectations from Terraform configuration.
- `CAA`: preserve `flags`, `tag`, and `value` field behavior.
- For dynamic `A`/`AAAA` behavior, avoid introducing drift-prone behavior or unsafe payload normalization.
## Portability requirements
- Keep the repository generic and standalone
- Do not reference personal infrastructure, private domains, homelab tooling, or external repo scripts
@@ -37,16 +53,21 @@ Do not implement in this phase:
- Avoid hardcoded local filesystem paths
## Testing
- Add unit tests where practical
- Gate acceptance tests behind generic environment variables
- `go test ./...` must pass.
- Add unit tests where practical; new features must include tests.
- Gate acceptance tests behind generic environment variables:
- `TF_ACC=1`
- `DYNU_API_KEY`
- optional `DYNU_DOMAIN` for domain-specific acceptance coverage
- Unit tests must not require live credentials
- Unit tests must not require live credentials.
- End-to-end Terraform example(s) must remain valid.
## Destructive operation warning
- Deleting `dynu_domain` removes the entire Dynu DNS zone for that domain.
- Agents must not introduce unsafe defaults or implicit destructive behavior.
## Documentation
- Keep README and examples aligned with actual provider behavior
- Document current read-only limitations clearly
- Include build, test, and acceptance test instructions for any contributor
## Developer scripts
@@ -57,8 +78,6 @@ Do not implement in this phase:
## Output expectations
Changes should keep the provider idiomatic, easy to contribute to, and ready for public/open-source usage.
## Agent instructions
## Validation workflow (Codex and local)
When you modify **Go** or **Terraform** files, always run this sequence before concluding work:
README.md
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# terraform-provider-dynu
A standalone Terraform provider for Dynu DNS.
A standalone Terraform provider for Dynu DNS and domain management.
> Status: **early CRUD milestone**. This provider includes read-only data sources plus one writable resource (`dynu_dns_record`) to establish CRUD foundations.
## Features
## Quick start (local dev with `dev_overrides`)
- Full CRUD for Dynu root domains via `dynu_domain`.
- Full CRUD for Dynu DNS records via `dynu_dns_record`.
- Read-only discovery data sources:
- `dynu_domains`
- `dynu_domain`
- `dynu_dns_records`
- Provider authentication via `api_key` or `DYNU_API_KEY`.
This provider is **not published** to the Terraform Registry yet. For local development, use Terraform CLI `dev_overrides` and your local provider binary.
## Minimal usage example
1. Build provider binary in repo root:
```hcl
terraform {
required_providers {
dynu = {
source = "dynu/dynu"
}
}
}
provider "dynu" {
api_key = var.dynu_api_key
}
variable "dynu_api_key" {
type = string
sensitive = true
}
resource "dynu_domain" "example" {
name = "my-test-domain.example"
ttl = 300
}
resource "dynu_dns_record" "www" {
hostname = "www.${dynu_domain.example.name}"
record_type = "A"
content = "198.51.100.20"
ttl = 300
}
```
For a live end-to-end workflow that exercises multiple record types, see `examples/live_safe_dns_record/README.md`.
## Resources
- `dynu_domain`
- `dynu_dns_record`
## Data sources
- `dynu_domains`
- `dynu_domain`
- `dynu_dns_records`
## Testing
Run Go unit/integration tests:
```bash
go test ./...
```
Run repository checks:
```bash
./scripts/fix.sh
./scripts/check.sh
```
Run the live end-to-end Terraform example (opt-in, uses real Dynu account data):
```bash
cd examples/live_safe_dns_record
cp terraform.tfvars.example terraform.tfvars
terraform validate
terraform plan
# terraform apply
# terraform destroy
```
## Development
This provider is not yet published to the Terraform Registry. Use `dev_overrides` with a local build.
1. Build the provider binary:
```bash
go build -o terraform-provider-dynu
```
By default, local builds use embedded metadata values:
- `version=dev`
- `commit=none`
- `built=unknown`
2. Configure `~/.terraformrc`:
```hcl
@@ -31,7 +106,7 @@ provider_installation {
}
```
3. Run the runnable read-only example:
3. Validate locally without relying on registry publishing:
```bash
cd examples/read_only
@@ -40,296 +115,4 @@ terraform validate
terraform plan
```
4. Run the live-safe write example (opt-in, creates a disposable DNS record only):
```bash
cd examples/live_safe_dns_record
cp terraform.tfvars.example terraform.tfvars
# set only dynu_root_domain to a Dynu-managed root zone you control
terraform validate
terraform plan
```
> [!WARNING]
> Do not run `terraform init` as part of the normal Codex/local test loop for this repo. Because the provider is not yet published to the Terraform Registry, `init` may attempt registry/network resolution and fail or give misleading results. Use `dev_overrides`, rebuild the local binary, then run `terraform validate` and `terraform plan`.
>
> With `dev_overrides`, Terraform uses your local binary for `dynu/dynu`.
### Codex/local validation loop
Use this expected loop for local verification and Codex-driven validation:
```bash
go build -o terraform-provider-dynu
cd examples/read_only
terraform validate
terraform plan
```
When provider configuration or code changes, rebuild the provider binary first, then re-run `terraform validate` and `terraform plan`.
### Version metadata in binaries
The provider embeds build metadata (`version`, `commit`, `date`) in the binary.
- Local builds (no `-ldflags`) default to:
- `version=dev`
- `commit=none`
- `built=unknown`
- You can inspect metadata from the binary with either:
- `./terraform-provider-dynu --version`
- `./terraform-provider-dynu version`
Primary build method (recommended):
```bash
./build.sh v0.2.0
```
`build.sh` takes exactly one argument (the version string), then derives commit and date automatically:
- `COMMIT=$(git rev-parse --short HEAD)`
- `DATE=$(date -u +%Y-%m-%dT%H:%M:%SZ)`
Manual equivalent (same stamped build command used by `build.sh`):
```bash
VERSION=v0.2.0
COMMIT=$(git rev-parse --short HEAD)
DATE=$(date -u +%Y-%m-%dT%H:%M:%SZ)
go build -o terraform-provider-dynu \
-ldflags="-X main.version=${VERSION} -X main.commit=${COMMIT} -X main.date=${DATE}"
```
Release tag/version mapping:
- Git tag `v0.1.0` -> build with `VERSION=v0.1.0`
- Git tag `v0.2.0` -> build with `VERSION=v0.2.0`
## Copy/paste starter configuration
```hcl
terraform {
required_providers {
dynu = {
source = "dynu/dynu"
}
}
}
provider "dynu" {
api_key = var.dynu_api_key # optional if DYNU_API_KEY is set
}
variable "dynu_api_key" {
type = string
default = null
sensitive = true
}
data "dynu_domains" "all" {}
# Use a real hostname from your Dynu account.
data "dynu_domain" "selected" {
hostname = "www.example.com"
}
data "dynu_dns_records" "selected" {
hostname = "www.example.com"
}
```
## Provider schema reference
### Provider: `dynu`
Optional arguments:
- `api_key` (String, Sensitive)
- Falls back to `DYNU_API_KEY` environment variable when omitted.
- `base_url` (String)
- Test/dev override for Dynu API base URL.
Provider resources:
- `dynu_dns_record` (first writable resource)
### `dynu_dns_record`
Arguments:
- `hostname` (String, required)
- `record_type` (String, required)
- `content` (String, optional/computed)
- For `A` and `AAAA`, omitted/blank content means Dynu dynamic-IP intent.
- For non-`A`/`AAAA` record types, content is required.
- `dynamic` (Bool, optional/computed)
- Explicit dynamic-mode toggle for `A`/`AAAA`. Existing omitted `content` behavior remains backward compatible.
- `ttl` (Number, optional)
- `enabled` (Bool, optional, defaults to `true`)
- `group` (String, optional)
- `host` (String, optional)
- `node_name` (String, optional)
Attributes:
- `id` (String) in `domain_id/record_id` format
- `domain_id` (Number)
- `domain_name` (String)
- `updated_on` (String)
- plus all configurable arguments
Example:
```hcl
resource "dynu_dns_record" "txt" {
hostname = "api.example.com"
record_type = "A"
content = "198.51.100.10"
ttl = 90
enabled = false
}
resource "dynu_dns_record" "dynamic_a" {
hostname = "auth.example.com"
record_type = "A"
# content intentionally omitted for Dynu dynamic IPv4 behavior
}
```
Notes:
- Dynu control-panel semantics treat blank `A`/`AAAA` values as dynamic/inherited records, not invalid static records.
- Dynu can surface inherited/current values with parentheses in the UI (for example `(203.0.113.10)`); provider state preserves dynamic intent to avoid perpetual drift from changing live IPs.
- The provider avoids sending empty-string IP payloads, and if Dynu rejects omitted IP fields in an API path, it uses a documented fallback emulation path based on the root domain current address/group metadata.
## Data source schema reference
### `dynu_domains`
Arguments:
- none
Attributes:
- `domains` (List(Object)):
- `id`, `name`, `unicode_name`, `token` (sensitive), `state`, `group`
- `ipv4_address`, `ipv6_address`, `ttl`
- `ipv4`, `ipv6`, `ipv4_wildcard_alias`, `ipv6_wildcard_alias`
- `allow_zone_transfer`, `dnssec`, `created_on`, `updated_on`
Example:
```hcl
data "dynu_domains" "all" {}
```
### `dynu_domain`
Arguments:
- `hostname` (String, required)
Attributes:
- `domain` (Object) with the same fields as `dynu_domains.domains[*]`.
Example:
```hcl
data "dynu_domain" "selected" {
hostname = "www.example.com"
}
```
### `dynu_dns_records`
Arguments:
- `hostname` (String, required)
Attributes:
- `domain_id` (Number)
- `domain_name` (String)
- `records` (List(Object)) with:
- `id`, `domain_id`, `domain_name`, `node_name`, `hostname`, `record_type`
- `ttl`, `state`, `content`, `updated_on`, `group`, `host`
Example:
```hcl
data "dynu_dns_records" "selected" {
hostname = "www.example.com"
}
```
## Examples
- Runnable local workflow: `examples/read_only/`
- Live-safe write lifecycle workflow: `examples/live_safe_dns_record/`
- Provider block example: `examples/provider/provider.tf`
- Individual data source snippets:
- `examples/data-sources/dynu_domains/data-source.tf`
- `examples/data-sources/dynu_domain/data-source.tf`
- `examples/data-sources/dynu_dns_records/data-source.tf`
- Resource snippet:
- `examples/resources/dynu_dns_record/resource.tf`
## Troubleshooting local dev
- **Unsupported provider arguments**
- Symptom: errors such as `Unsupported argument` (for example `username`).
- Fix: use only `api_key` and/or `base_url` in `provider "dynu"`.
- **Bad API credentials**
- Symptom: diagnostics mention authentication failures.
- Fix: verify `api_key` or `DYNU_API_KEY` and re-run `terraform plan`.
- **Unknown data source arguments**
- Symptom: unsupported argument errors in data blocks.
- Fix: `dynu_domain` and `dynu_dns_records` require only `hostname`; `dynu_domains` takes no arguments.
- **Stale provider binary after code changes**
- Symptom: Terraform behavior doesn't reflect latest code.
- Fix: rebuild binary (`go build -o terraform-provider-dynu`) and re-run `terraform validate` and `terraform plan`.
## Development checks
Before committing, run:
```bash
./scripts/fix.sh
./scripts/check.sh
```
`fix.sh` applies standard formatting and module hygiene.
`check.sh` is the strict verification script used by CI.
## Developer workflow
- `./scripts/setup-dev.sh` - validate local toolchain requirements
- `./scripts/check.sh` - formatting, vet, and unit tests
- `./scripts/test-integration.sh` - local mock-backed provider integration tests
- `./scripts/testacc.sh` - acceptance/integration test wrapper (live tests opt-in)
Live acceptance tests are opt-in and require:
- `TF_ACC=1`
- `DYNU_API_KEY`
- optional `DYNU_DOMAIN` for domain-specific coverage
### Live safe write testing
Use `examples/live_safe_dns_record` when you want to safely validate writable provider behavior against a real Dynu account.
- This example creates a unique temporary subdomain in the form `<prefix>-<random>.<dynu_root_domain>`.
- It creates exactly one disposable `A` record using a default IPv4 value accepted by Dynu.
- It is designed so `terraform destroy` removes only the created disposable record from that run/state.
Safety guidance:
- Set `dynu_root_domain` to a root Dynu-managed zone you control (for example `example.com`).
- Do **not** supply or target an existing live full hostname you care about.
- If apply is interrupted, rerun `terraform destroy` from the same directory/state to clean up.
## Feature scope
Implemented:
- Provider authentication via `api_key` or `DYNU_API_KEY`
- Optional provider `base_url` override
- Data sources: `dynu_domains`, `dynu_domain`, `dynu_dns_records`
- Resource: `dynu_domain` (CRUD + import using numeric domain ID)
- Resource: `dynu_dns_record` (CRUD + import using `domain_id/record_id`)
Not implemented yet:
- Additional Terraform resources beyond `dynu_domain` and `dynu_dns_record`
- Broader Dynu API coverage outside current DNS/domain scope
When provider code/config changes, rebuild `terraform-provider-dynu` before re-running Terraform commands.
docs/index.md
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---
page_title: "dynu Provider"
description: |-
Terraform provider for Dynu DNS read-only data sources.
Terraform provider for Dynu DNS domains and DNS records (full CRUD) plus lookup data sources.
---
# dynu Provider
The `dynu` provider lets Terraform read Dynu DNS domain and record data.
The `dynu` provider manages Dynu root domains and DNS records, and supports lookup data sources for discovery workflows.
This provider repository is standalone and does not require any external companion repository or helper script.
## Example Usage
docs/resources/dns_record.md
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# dynu_dns_record Resource
Manages a Dynu DNS record under the Dynu root domain resolved from `hostname`.
## Example Usage
### A record
```terraform
resource "dynu_dns_record" "a" {
hostname = "www.example.com"
record_type = "A"
content = "198.51.100.20"
ttl = 300
}
```
### CNAME record
```terraform
resource "dynu_dns_record" "cname" {
hostname = "app.example.com"
record_type = "CNAME"
content = "target.example.net"
}
```
### MX record
```terraform
resource "dynu_dns_record" "mx" {
hostname = "example.com"
record_type = "MX"
content = "mail.example.com"
priority = 10
}
```
### TXT record
```terraform
resource "dynu_dns_record" "txt" {
hostname = "example.com"
record_type = "TXT"
content = "v=spf1 include:_spf.example.com ~all"
}
```
### SRV record
```terraform
resource "dynu_dns_record" "srv" {
hostname = "_sip._tcp.example.com"
record_type = "SRV"
content = "sip.example.com"
priority = 10
weight = 5
port = 5060
}
```
## Schema
### Required
- `hostname` (String) Fully-qualified hostname.
- `record_type` (String) DNS record type.
### Optional + Computed
- `content` (String)
- `dynamic` (Boolean)
- `ttl` (Number)
- `enabled` (Boolean, defaults to `true`)
- `group` (String)
- `host` (String)
- `priority` (Number)
- `weight` (Number)
- `port` (Number)
- `flags` (Number)
- `tag` (String)
- `value` (String)
- `node_name` (String)
Type-specific notes:
- `A`/`AAAA` support dynamic semantics using omitted `content` or explicit `dynamic = true`.
- `MX` and `SRV` use `priority`.
- `SRV` also uses `weight` and `port`.
- `CAA` uses `flags`, `tag`, and `value`.
### Computed
- `id` (String) Composite ID in `domain_id/record_id` format.
- `domain_id` (Number)
- `domain_name` (String)
- `updated_on` (String)
## Import
Import using `domain_id/record_id`:
```bash
terraform import dynu_dns_record.example 1234/5678
```
docs/resources/domain.md
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# dynu_domain Resource
Manages a Dynu DNS domain.
Manages a Dynu DNS root domain.
## Example Usage
@@ -18,6 +18,27 @@ resource "dynu_dns_record" "www" {
}
```
## Schema
### Required
- `name` (String) Root domain name. Changing this forces replacement.
### Optional + Computed
- `ipv4_address` (String)
- `ipv6_address` (String)
- `ttl` (Number)
- `group` (String)
These fields can be configured, and also reflect values returned by Dynu.
### Computed
- `id` (Number) Dynu numeric domain ID.
- `state` (String) Dynu state.
- `token` (String, Sensitive) Dynu domain token.
## Import
Import using the numeric Dynu domain ID:
@@ -26,45 +47,6 @@ Import using the numeric Dynu domain ID:
terraform import dynu_domain.example 1234
```
## Attributes
## Warning
- `id` (Number) Dynu domain ID.
- `name` (String) Domain name (forces replacement when changed).
- `ipv4_address` (String) Optional IPv4 address.
- `ipv6_address` (String) Optional IPv6 address.
- `ttl` (Number) Optional TTL.
- `group` (String) Optional group.
- `state` (String) Computed state from Dynu API.
- `token` (String, Sensitive) Computed domain token from Dynu API.
## DNS record examples under this domain
```terraform
resource "dynu_dns_record" "mx" {
hostname = dynu_domain.example.name
record_type = "MX"
content = "mail.my-test-domain.example"
priority = 10
}
resource "dynu_dns_record" "txt_spf" {
hostname = dynu_domain.example.name
record_type = "TXT"
content = "v=spf1 include:_spf.example.com ~all"
}
resource "dynu_dns_record" "cname" {
hostname = "app.${dynu_domain.example.name}"
record_type = "CNAME"
content = "target.example.net"
}
resource "dynu_dns_record" "srv" {
hostname = "_sip._tcp.${dynu_domain.example.name}"
record_type = "SRV"
content = "sip.my-test-domain.example"
priority = 10
weight = 5
port = 5060
}
```
Deleting this resource deletes the entire Dynu DNS zone for that domain.