Require provider api_key and remove env var fallback

README.md

@@ -10,7 +10,7 @@ A standalone Terraform provider for Dynu DNS and domain management.
   - `dynu_domains`
   - `dynu_domain`
   - `dynu_dns_records`
-- Provider authentication via `api_key` or `DYNU_API_KEY`.
+- Provider authentication via `api_key`.
 
 ## Minimal usage example
 

docs/index.md

@@ -29,5 +29,5 @@ provider "dynu" {
 
 ### Optional
 
-- `api_key` (String, Sensitive) Dynu API key. If omitted, `DYNU_API_KEY` is used.
+- `api_key` (String, Sensitive) Dynu API key. Configure via provider argument (for example with `var.dynu_api_key` from `terraform.tfvars`).
 - `base_url` (String) Override API base URL. Primarily intended for automated tests.

examples/live_end_to_end_dns_zone/README.md

@@ -20,9 +20,7 @@ This example performs full live validation of the Dynu provider lifecycle by cre
 ## Prerequisites
 
 - A local build of this provider with Terraform `dev_overrides` for `dynu/dynu`.
-- Dynu API key provided either by:
-  - environment variable `DYNU_API_KEY`, or
-  - Terraform variable `dynu_api_key`.
+- Dynu API key provided as Terraform variable `dynu_api_key` (for example via `terraform.tfvars`).
 - A disposable domain value for `test_domain`.
 
 ## Required variables
@@ -31,7 +29,7 @@ Create `terraform.tfvars` in this folder:
 
 ```hcl
 test_domain = "my-disposable-test-domain.example"
-# dynu_api_key = "..." # optional if DYNU_API_KEY is exported
+dynu_api_key = "..."
 ```
 
 ## Commands

examples/live_end_to_end_dns_zone/variables.tf

@@ -1,5 +1,5 @@
 variable "dynu_api_key" {
-  description = "Dynu API key. Leave null to use DYNU_API_KEY from environment."
+  description = "Dynu API key used by the provider. Set in terraform.tfvars."
   type        = string
   default     = null
   sensitive   = true

examples/live_safe_dns_record/README.md

@@ -18,7 +18,7 @@ Using a single suffix (`test_suffix`), this example creates five DNS record scen
 ## Prerequisites
 
 - Local provider binary + Terraform `dev_overrides` for `dynu/dynu`
-- `DYNU_API_KEY` exported, or `dynu_api_key` set in `terraform.tfvars`
+- `dynu_api_key` set in `terraform.tfvars`
 - A Dynu-managed root domain you control
 
 ## Configure

examples/live_safe_dns_record/terraform.tfvars.example

@@ -1,5 +1,4 @@
-# Optional if DYNU_API_KEY is exported in your shell.
-# dynu_api_key = "REPLACE_ME"
+dynu_api_key = "REPLACE_ME"
 
 # Required: a Dynu-managed root domain/zone that you control.
 # Do NOT put an existing production hostname here.

examples/live_safe_dns_record/variables.tf

@@ -1,5 +1,5 @@
 variable "dynu_api_key" {
-  description = "Dynu API key. Leave null to use DYNU_API_KEY from environment."
+  description = "Dynu API key used by the provider. Set in terraform.tfvars."
   type        = string
   default     = null
   sensitive   = true

examples/provider/provider.tf

@@ -7,7 +7,7 @@ terraform {
 }
 
 provider "dynu" {
-  # api_key can be omitted when DYNU_API_KEY is set.
+  # Set var.dynu_api_key in terraform.tfvars.
   api_key = var.dynu_api_key
 }
 

examples/read_only/providers.tf

@@ -12,7 +12,6 @@ terraform {
 # This source address stays "dynu/dynu" while using ~/.terraformrc dev_overrides.
 # Terraform will load your local terraform-provider-dynu binary instead of the public registry.
 provider "dynu" {
-  # Use DYNU_API_KEY environment variable by default.
-  # Set var.dynu_api_key in terraform.tfvars to override.
+  # Set var.dynu_api_key in terraform.tfvars.
   api_key = var.dynu_api_key
 }

examples/read_only/terraform.tfvars.example

@@ -1,6 +1,5 @@
 # Copy to terraform.tfvars and adjust values for your environment.
-# dynu_api_key can be omitted when DYNU_API_KEY is exported in your shell.
-# dynu_api_key = "replace-with-dynu-api-key"
+dynu_api_key = "replace-with-dynu-api-key"
 
 # Use a hostname that exists in your Dynu account.
 hostname = "www.example.com"

examples/read_only/variables.tf

@@ -1,5 +1,5 @@
 variable "dynu_api_key" {
-  description = "Dynu API key. Leave null to use DYNU_API_KEY from environment."
+  description = "Dynu API key used by the provider. Set in terraform.tfvars."
   type        = string
   default     = null
   sensitive   = true

internal/provider/provider.go

@@ -2,7 +2,6 @@ package provider
 
 import (
 	"context"
-	"os"
 	"strings"
 
 	"github.com/hashicorp/terraform-plugin-framework/datasource"
@@ -48,7 +47,7 @@ func (p *dynuProvider) Schema(_ context.Context, _ provider.SchemaRequest, resp
 			"api_key": schema.StringAttribute{
 				Optional:    true,
 				Sensitive:   true,
-				Description: "Dynu API key. If omitted, the provider uses the DYNU_API_KEY environment variable.",
+				Description: "Dynu API key. Set this explicitly, such as via a Terraform variable in terraform.tfvars.",
 			},
 			"base_url": schema.StringAttribute{
 				Optional:    true,
@@ -66,12 +65,12 @@ func (p *dynuProvider) Configure(ctx context.Context, req provider.ConfigureRequ
 		return
 	}
 
-	apiKey := resolveAPIKey(data.APIKey, os.Getenv("DYNU_API_KEY"))
+	apiKey := resolveAPIKey(data.APIKey)
 	if apiKey == "" {
 		resp.Diagnostics.AddAttributeError(
 			path.Root("api_key"),
 			"Missing Dynu API key",
-			"Configure api_key in the provider block or set the DYNU_API_KEY environment variable.",
+			"Configure api_key in the provider block (for example, from var.dynu_api_key set in terraform.tfvars).",
 		)
 		return
 	}
@@ -81,11 +80,11 @@ func (p *dynuProvider) Configure(ctx context.Context, req provider.ConfigureRequ
 	resp.ResourceData = providerData
 }
 
-func resolveAPIKey(configValue types.String, envValue string) string {
+func resolveAPIKey(configValue types.String) string {
 	if !configValue.IsNull() && !configValue.IsUnknown() {
 		return strings.TrimSpace(configValue.ValueString())
 	}
-	return strings.TrimSpace(envValue)
+	return ""
 }
 
 func (p *dynuProvider) DataSources(_ context.Context) []func() datasource.DataSource {

internal/provider/provider_test.go

@@ -16,19 +16,17 @@ func TestResolveAPIKey(t *testing.T) {
 	tests := []struct {
 		name   string
 		config types.String
-		env    string
 		want   string
 	}{
-		{name: "config wins", config: types.StringValue("config-key"), env: "env-key", want: "config-key"},
-		{name: "env fallback", config: types.StringNull(), env: "env-key", want: "env-key"},
-		{name: "trim spaces", config: types.StringValue("  config-key "), env: " env-key ", want: "config-key"},
-		{name: "unknown uses env", config: types.StringUnknown(), env: "env-key", want: "env-key"},
-		{name: "empty when missing", config: types.StringNull(), env: "", want: ""},
+		{name: "configured", config: types.StringValue("config-key"), want: "config-key"},
+		{name: "null when missing", config: types.StringNull(), want: ""},
+		{name: "trim spaces", config: types.StringValue("  config-key "), want: "config-key"},
+		{name: "unknown when pending", config: types.StringUnknown(), want: ""},
 	}
 
 	for _, tc := range tests {
 		t.Run(tc.name, func(t *testing.T) {
-			if got := resolveAPIKey(tc.config, tc.env); got != tc.want {
+			if got := resolveAPIKey(tc.config); got != tc.want {
 				t.Fatalf("resolveAPIKey() = %q, want %q", got, tc.want)
 			}
 		})