feat(templates): add gh-release feature template

.github/workflows/generate-gh-feature.yml

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+name: Generate Feature from gh-release Template
+
+on:
+  workflow_dispatch:
+    inputs:
+      ID:
+        description: 'Feature identifier (e.g., akamai-cli)'
+        required: true
+        type: string
+      Description:
+        description: 'Feature description'
+        required: true
+        type: string
+      Repository:
+        description: 'GitHub repository in format "owner/repo" (e.g., akamai/cli)'
+        required: true
+        type: string
+      BinaryNames:
+        description: 'Binary names (comma-separated if multiple)'
+        required: true
+        type: string
+      BinaryVersionCommands:
+        description: 'Version check commands (comma-separated if multiple)'
+        required: false
+        type: string
+        default: '--version'
+      BinaryNonLatestVersions:
+        description: 'Non-latest versions for testing (comma-separated if multiple)'
+        required: true
+        type: string
+
+jobs:
+  generate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+        with:
+          token: ${{ secrets.ARCHIVE_TOKEN }}
+
+      - name: Check if feature already exists
+        run: |
+          if [ -d "src/${{ inputs.ID }}" ] || [ -d "test/${{ inputs.ID }}" ]; then
+            echo "❌ Feature '${{ inputs.ID }}' already exists!"
+            echo "Please use a different feature ID or remove the existing feature first."
+            exit 1
+          fi
+          echo "✅ Feature ID is available"
+
+      - name: Validate GitHub repository exists
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          if gh api repos/${{ inputs.Repository }} > /dev/null 2>&1; then
+            echo "✅ Repository '${{ inputs.Repository }}' exists and is accessible"
+          else
+            echo "⚠️  Warning: Could not verify repository '${{ inputs.Repository }}'"
+            echo "The repository might be private, not exist, or you don't have access to it."
+            echo "Continuing with feature generation..."
+          fi
+
+      - name: Download boilerplate
+        run: |
+          wget -q https://github.com/gruntwork-io/boilerplate/releases/download/v0.10.1/boilerplate_linux_amd64
+          chmod +x boilerplate_linux_amd64
+
+      - name: Create vars.yml
+        run: |
+          cat > vars.yml << 'EOF'
+          ID: ${{ inputs.ID }}
+          Description: ${{ inputs.Description }}
+          Repository: ${{ inputs.Repository }}
+          BinaryNames: ${{ inputs.BinaryNames }}
+          BinaryVersionCommands: ${{ inputs.BinaryVersionCommands }}
+          BinaryNonLatestVersions: ${{ inputs.BinaryNonLatestVersions }}
+          EOF
+          echo "📝 Created vars.yml:"
+          cat vars.yml
+
+      - name: Create branch for new feature
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git checkout -b feature/${{ inputs.ID }}-init
+
+      - name: Generate feature files
+        run: |
+          echo "🔧 Generating feature files from templates/gh-release..."
+          ./boilerplate_linux_amd64 \
+            --template-url templates/gh-release/ \
+            --output-folder src/${{ inputs.ID }} \
+            --var-file vars.yml \
+            --non-interactive
+
+      - name: Generate test files
+        run: |
+          echo "🧪 Generating test files from templates/test..."
+          ./boilerplate_linux_amd64 \
+            --template-url templates/test/ \
+            --output-folder test/${{ inputs.ID }} \
+            --var-file vars.yml \
+            --non-interactive
+
+      - name: Commit changes
+        run: |
+          git add -A
+          git commit -m "feat(${{ inputs.ID }}): init
+
+          Generated using boilerplate templates."
+
+      - name: Push changes
+        run: git push origin feature/${{ inputs.ID }}-init
+
+      - name: Create Pull Request
+        env:
+          GH_TOKEN: ${{ secrets.ARCHIVE_TOKEN }}
+        run: |
+          gh pr create \
+            --title "feat(${{ inputs.ID }}): init" \
+            --body "## New Feature: \`${{ inputs.ID }}\`
+
+          **Description:** ${{ inputs.Description }}
+
+          **Repository:** [${{ inputs.Repository }}](https://github.com/${{ inputs.Repository }})
+
+          **Binaries:** \`${{ inputs.BinaryNames }}\`
+
+          **Version Commands:** \`${{ inputs.BinaryVersionCommands }}\`
+
+          **Test Versions:** \`${{ inputs.BinaryNonLatestVersions }}\`
+
+          ---
+
+          This PR was automatically generated using the boilerplate templates.

templates/bak/test/scenarios.json

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+{
+    "test_debian": {
+        "image": "mcr.microsoft.com/devcontainers/base:debian",
+        "features": {
+            "<id>": {}
+        }
+    },
+    "test_specific_version": {
+        "image": "mcr.microsoft.com/devcontainers/base:debian",
+        "features": {
+            "<id>": {
+                "version": "x.y.z"
+            }
+        }
+    }
+}

templates/bak/test/test.sh

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+#!/usr/bin/env bash
+
+set -e
+
+source dev-container-features-test-lib
+
+check "something is installed" something --version
+
+reportResults

templates/bak/test/test_debian.sh

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+#!/usr/bin/env bash
+
+set -e
+
+source dev-container-features-test-lib
+
+check "something is installed" something --version
+
+reportResults

templates/bak/test/test_specific_version.sh

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+#!/usr/bin/env bash
+
+set -e
+
+source dev-container-features-test-lib
+
+check "something version is equal to x.y.z" sh -c "something --version | grep 'x.y.z'"
+
+reportResults

templates/gh-release/boilerplate.yml

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+variables:
+  - name: ID
+    description: The unique identifier for the feature (e.g., akamai-cli).
+
+  - name: Description
+    description: A brief description of the feature.
+
+  - name: Repository
+    description: The GitHub repository in the format "owner/repo" (e.g., akamai/cli).
+
+  - name: BinaryNames
+    description: The names of the binaries to install from the release (comma-separated if multiple).

templates/gh-release/devcontainer-feature.json

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+{
+    "id": "{{.ID}}",
+    "version": "1.0.0",
+    "name": "{{.ID}} (via Github Releases)",
+    "documentationURL": "http://github.com/devcontainers-extra/features/tree/main/src/{{.ID}}",
+    "description": "{{.Description}}",
+    "options": {
+        "version": {
+            "default": "latest",
+            "description": "Select the version to install.",
+            "proposals": [
+                "latest"
+            ],
+            "type": "string"
+        }
+    },
+    "installsAfter": []
+}

templates/gh-release/install.sh

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+#!/usr/bin/env bash
+
+set -e
+
+source ./library_scripts.sh
+
+# nanolayer is a cli utility which keeps container layers as small as possible
+# source code: https://github.com/devcontainers-extra/nanolayer
+# `ensure_nanolayer` is a bash function that will find any existing nanolayer installations,
+# and if missing - will download a temporary copy that automatically get deleted at the end
+# of the script
+ensure_nanolayer nanolayer_location "v0.5.6"
+
+# Example nanolayer installation via devcontainer-feature
+$nanolayer_location \
+    install \
+    devcontainer-feature \
+    "ghcr.io/devcontainers-extra/features/gh-release:1" \
+    --option repo='{{.Repository}}' --option binaryNames='{{.BinaryNames}}' --option version="$VERSION"
+
+echo 'Done!'