Enable antsibull-changelog and add GitHub workflow for changelog validation

.github/workflows/changelog.yml

@@ -0,0 +1,21 @@
+---
+name: Changelog
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+on:
+  pull_request:
+    types:
+      - opened
+      - reopened
+      - labeled
+      - unlabeled
+      - synchronize
+    branches:
+      - main
+      - stable-*
+
+jobs:
+  changelog:
+    uses: ansible-network/github_actions/.github/workflows/changelog.yml@main

README.md

@@ -1,6 +1,6 @@
 # Terraform Provider for Ansible
 
-The Terraform Provider for Ansible provides a more straightforward and robust means of executing Ansible automation from Terraform than local-exec. Paired with the inventory plugin in [the Ansible cloud.terraform collection](https://github.com/ansible-collections/cloud.terraform), users can run Ansible playbooks and roles on infrastructure provisioned by Terraform. The provider also includes integrated ansible-vault support. 
+The Terraform Provider for Ansible provides a more straightforward and robust means of executing Ansible automation from Terraform than local-exec. Paired with the inventory plugin in [the Ansible cloud.terraform collection](https://github.com/ansible-collections/cloud.terraform), users can run Ansible playbooks and roles on infrastructure provisioned by Terraform. The provider also includes integrated ansible-vault support.
 
 This provider can be [found in the Terraform Registry here](https://registry.terraform.io/providers/ansible/ansible/latest).
 
@@ -56,15 +56,20 @@ make test
 ### Examples
 The [examples](./examples/) subdirectory contains a usage example for this provider.
 
+## Release notes
+
+See the [generated changelog](https://github.com/ansible/terraform-provider-ansible/tree/main/CHANGELOG.rst).
+
 ## Releasing
 
 To release a new version of the provider:
 
 1. Update the version number in https://github.com/ansible/terraform-provider-ansible/blob/main/examples/provider/provider.tf
 2. Run `go generate` to regenerate docs
-3. Commit changes
-4. Push a new tag (this should trigger an automated release process to the Terraform Registry)
-5. Verify the new version is published at https://registry.terraform.io/providers/ansible/ansible/latest
+3. Run `antsibull-changelog release --version <version>` to release a new version of the project.
+4. Commit changes
+5. Push a new tag (this should trigger an automated release process to the Terraform Registry)
+6. Verify the new version is published at https://registry.terraform.io/providers/ansible/ansible/latest
 
 ## Licensing
 

changelogs/config.yaml

@@ -0,0 +1,33 @@
+changelog_filename_template: ../CHANGELOG.rst
+changelog_filename_version_depth: 0
+changes_file: changelog.yaml
+changes_format: combined
+ignore_other_fragment_extensions: true
+is_other_project: true
+keep_fragments: false
+mention_ancestor: true
+new_plugins_after_name: removed_features
+notesdir: fragments
+prelude_section_name: release_summary
+prelude_section_title: Release Summary
+sanitize_changelog: true
+sections:
+- - major_changes
+  - Major Changes
+- - minor_changes
+  - Minor Changes
+- - breaking_changes
+  - Breaking Changes / Porting Guide
+- - deprecated_features
+  - Deprecated Features
+- - removed_features
+  - Removed Features (previously deprecated)
+- - security_fixes
+  - Security Fixes
+- - bugfixes
+  - Bugfixes
+- - known_issues
+  - Known Issues
+title: The Terraform Provider for Ansible
+trivial_section_name: trivial
+use_semantic_versioning: true

changelogs/fragments/aws_example.yml

@@ -0,0 +1,2 @@
+trivial:
+  - "Added aws example to create ec2 instance with terraform and install nginx with ansible (https://github.com/ansible/terraform-provider-ansible/pull/9)."

changelogs/fragments/gplv3_licensing.yml

@@ -0,0 +1,2 @@
+trivial:
+  - "Add GPLv3 licensing (https://github.com/ansible/terraform-provider-ansible/issues/36)."

changelogs/fragments/inventory_race_conditions.yml

@@ -0,0 +1,2 @@
+bugfixes:
+  - provider/resource_playbook - Fix race condition between multiple ansible_playbook resources (https://github.com/ansible/terraform-provider-ansible/issues/38).

changelogs/fragments/update_dependencies.yml

@@ -0,0 +1,2 @@
+minor_changes:
+  - "Update dependencies (google.golang.org/grpc and golang.org/x/net) to resolve security alerts https://github.com/ansible/terraform-provider-ansible/security/dependabot (https://github.com/ansible/terraform-provider-ansible/pull/72)."

changelogs/fragments/use_sdkv2.yml

@@ -0,0 +1,2 @@
+minor_changes:
+  - "Updates the provider to use SDKv2 (https://github.com/ansible/terraform-provider-ansible/issues/39)."