Adding all files for initial repo

.github/workflows/build-push.yml

@@ -0,0 +1,30 @@
+name: Build and Push Docker Image
+
+
+# This workflow is manually triggered from the "Actions" tab in GitHub.
+# It requires a single input: the version tag of the flood repository to use.
+on:
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Log in to Docker Hub
+      uses: docker/login-action@v3
+      with:
+        username: ${{ secrets.DOCKER_USERNAME }}
+        password: ${{ secrets.DOCKER_TOKEN }}
+
+    - name: Build the Docker image
+      id: build
+      run: |
+        docker build . -t k2patel/postfix:latest
+        echo "IMAGE_NAME=k2patel/postfix:latest" >> $GITHUB_ENV
+
+    - name: Push the Docker image
+      run: docker push ${{ env.IMAGE_NAME }}