Add VERSION file to release artifacts and setup script

- GitHub Actions: Create VERSION file with build metadata (commit, timestamp, branch, etc.)
- Include VERSION file in GitHub release artifacts for traceability
- Setup script: Download VERSION file and display version information
- Allows users to verify installed version and check for updates on GCE VMs

Author: abshkbh

.github/workflows/build-binaries.yml

@@ -85,6 +85,22 @@ jobs:
         cp out/arrakis-guestrootfs-ext4.img.tar.gz release-artifacts/
         cp config.yaml release-artifacts/
 
+    - name: Create VERSION file
+      run: |
+        echo "Creating VERSION file with build metadata..."
+        echo "VERSION=release-${{ github.run_number }}" > release-artifacts/VERSION
+        echo "COMMIT=${{ github.sha }}" >> release-artifacts/VERSION
+        echo "COMMIT_SHORT=$(echo ${{ github.sha }} | cut -c1-8)" >> release-artifacts/VERSION
+        echo "BUILD_TIME=$(date -u +%Y-%m-%dT%H:%M:%SZ)" >> release-artifacts/VERSION
+        echo "BRANCH=${{ github.ref_name }}" >> release-artifacts/VERSION
+        echo "BUILD_ID=${{ github.run_id }}" >> release-artifacts/VERSION
+        echo "BUILD_NUMBER=${{ github.run_number }}" >> release-artifacts/VERSION
+        echo "WORKFLOW=${{ github.workflow }}" >> release-artifacts/VERSION
+        echo "ACTOR=${{ github.actor }}" >> release-artifacts/VERSION
+        echo ""
+        echo "VERSION file contents:"
+        cat release-artifacts/VERSION
+
     - name: Upload artifacts
       uses: actions/upload-artifact@v4
       with:
@@ -110,6 +126,7 @@ jobs:
           release-artifacts/initramfs.cpio.gz
           release-artifacts/arrakis-guestrootfs-ext4.img.tar.gz
           release-artifacts/config.yaml
+          release-artifacts/VERSION
         generate_release_notes: true
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

setup/setup.sh

@@ -90,6 +90,32 @@ download_file "$RELEASE_URL/initramfs.cpio.gz" "$OUT_DIR/initramfs.cpio.gz" "Ini
 # Download config.yaml
 download_file "$RELEASE_URL/config.yaml" "$CONFIG_FILE" "Configuration file"
 
+# Download VERSION file
+download_file "$RELEASE_URL/VERSION" "$ARRAKIS_DIR/VERSION" "Version information file"
+
+# Function to display version information
+display_version_info() {
+  local version_file="$ARRAKIS_DIR/VERSION"
+  
+  if [ -f "$version_file" ]; then
+    print_message "Installed Arrakis Version Information:"
+    echo -e "${GREEN}================================${NC}"
+    while IFS='=' read -r key value; do
+      if [ -n "$key" ] && [ -n "$value" ]; then
+        printf "${YELLOW}%-15s${NC}: %s\n" "$key" "$value"
+      fi
+    done < "$version_file"
+    echo -e "${GREEN}================================${NC}"
+    echo ""
+    print_message "To check if you have the latest version, compare this with:"
+    print_message "https://github.com/abshkbh/arrakis/releases/latest"
+  else
+    print_warning "VERSION file not found. Version information unavailable."
+  fi
+}
+
+# Display version information
+display_version_info
 
 # Download install-images.py
 print_message "Downloading install-images.py script..."