Adding cron to auto build every month

.github/workflows/docker-build.yml

@@ -1,6 +1,9 @@
 name: Build and Push Docker Image
 
+
 on:
+  schedule:
+    - cron: '0 0 1 * *'  # This runs at midnight on the first day of every month
   push:
     branches:
       - main
@@ -20,8 +23,11 @@ jobs:
         password: ${{ secrets.DOCKER_TOKEN }}
 
     - name: Build the Docker image
-      run: docker build . -t k2patel/postfix:latest
+      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 k2patel/postfix
+      run: docker push ${{ env.IMAGE_NAME }}
 

docker-compose.yml

@@ -0,0 +1,19 @@
+services:
+  postfix:
+    container_name: postfix
+    image: docker.io/k2patel/postfix:latest
+    ports:
+      - "10825:25/tcp"
+    environment:
+      TIMEZONE: ${TIMEZONE}
+      SMTP_SERVER: ${SMTP_SERVER}
+      SERVER_HOSTNAME: ${SERVER_HOSTNAME}
+      SMTP_PORT: ${SMTP_PORT}
+      DOMAIN: ${DOMAIN}
+      SMTP_USERNAME: ${SMTP_USERNAME}
+      SMTP_PASSWORD: ${SMTP_PASSWORD}
+    volumes:
+      - "${DATA_FOLDER}/logs:/var/log"
+      - "${DATA_FOLDER}/mail:/var/mail"
+      - "${DATA_FOLDER}/spool:/var/spool/postfix"
+    restart: unless-stopped

env.sample

@@ -0,0 +1,8 @@
+TIMEZONE='America/New_York'
+SMTP_SERVER='smtp.example.com'
+SERVER_HOSTNAME=server_name
+SMTP_PORT=587
+DOMAIN=smtp_domain
+SMTP_USERNAME=apikey
+SMTP_PASSWORD='api_key'
+DATA_FOLDER='Local data folder'