actions: prepare workflow for flakehub tagged + ansible galaxy

.github/workflows/release.yml

@@ -0,0 +1,90 @@
+---
+name: Release and Deploy collection
+on:
+  workflow_dispatch:
+
+jobs:
+  releaseanddeploy:
+    runs-on: ubuntu-latest
+    if: github.repository == 'mgit-at/ansible-collection-nix_unify'
+    strategy:
+      matrix:
+        python-version: [3.8]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Get current version
+        id: cversion
+        run: echo "::set-output name=version::$(grep version galaxy.yml | cut -f 2 -d ' ')"
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install --upgrade ansible==2.10
+          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+
+      - name: Build Ansible Collection
+        run: ansible-galaxy collection build . --force
+
+      - name: Create Release
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: v${{ steps.cversion.outputs.version }}
+          release_name: Release v${{ steps.cversion.outputs.version }}
+          body: |
+            Install flake from flakehub:
+            [![FlakeHub](https://img.shields.io/endpoint?url=https://flakehub.com/f/mgit-at/nix-unify/badge)](https://flakehub.com/flake/mgit-at/nix-unify)
+
+            Add nix-unify to your `flake.nix`:
+
+            ```nix
+            {
+              inputs.nix-unify.url = "https://flakehub.com/f/mgit-at/nix-unify/*.tar.gz";
+
+              outputs = { self, nix-unify }: {
+                # Use in your outputs
+              };
+            }
+            ```
+
+            Install over Ansible Galaxy:
+            ```sh
+            ansible-galaxy collection install mgit_at.nix_unify
+            ```
+
+            Install from the Github repositority with:
+            ```sh
+            ansible-galaxy collection install -r requirements.yml -f
+            ```
+            The requirements.yml needs to have the following format and content:
+            ```yaml
+            ---
+            collections:
+                - https://github.com/mgit-at/nix-unify/releases/download/v${{ steps.cversion.outputs.version }}/mgit_at-nix_unify-${{ steps.cversion.outputs.version }}.tar.gz
+            ```
+          draft: false
+          prerelease: false
+
+      - name: Upload Release Asset
+        id: upload-release-asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: mgit_at-nix_unify-${{ steps.cversion.outputs.version }}.tar.gz
+          asset_name: mgit_at-nix_unify-${{ steps.cversion.outputs.version }}.tar.gz
+          asset_content_type: application/tar+gzip
+
+      - name: Deploy Ansible collection to Galaxy
+        run: ansible-galaxy collection publish mgit_at-nix_unify-${{ steps.cversion.outputs.version }}.tar.gz --api-key ${{ secrets.GALAXY_API_KEY }}