improvement(terraform): stricter validation and better error messages

Print the list of available Terraform versions if validation fails.
garden-io · Sep 29, 2022 · 351bfb8 · 351bfb8
1 parent 0a6b173
commit 351bfb8
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diff --git a/docs/reference/providers/terraform.md b/docs/reference/providers/terraform.md
@@ -167,9 +167,9 @@ A map of variables to use when applying Terraform stacks. You can define these h
 
 The version of Terraform to use. Set to `null` to use whichever version of `terraform` that is on your PATH.
 
-| Type     | Default   | Required |
-| -------- | --------- | -------- |
-| `string` | `"1.2.9"` | No       |
+| Type     | Allowed Values                                        | Default   | Required |
+| -------- | ----------------------------------------------------- | --------- | -------- |
+| `string` | "0.12.26", "0.13.3", "0.14.7", "1.0.5", "1.2.9", null | `"1.2.9"` | Yes      |
 
 ### `providers[].workspace`
 

diff --git a/plugins/terraform/index.ts b/plugins/terraform/index.ts
@@ -60,6 +60,7 @@ const configSchema = providerConfigBaseSchema()
     version: joi
       .string()
       .allow(...supportedVersions, null)
+      .only()
       .default(defaultTerraformVersion).description(dedent`
         The version of Terraform to use. Set to \`null\` to use whichever version of \`terraform\` that is on your PATH.
       `),