Update Jenkinsfile

Jenkinsfile

@@ -3,6 +3,7 @@ pipeline {
 
     environment {
         NODE_VERSION = '20.17.0'
+        PR_NUMBER = "${env.CHANGE_ID}" // PR number comes from webhook payload
     }
 
     stages {
@@ -32,6 +33,38 @@ pipeline {
                 sh 'npm run build'
             }
         }
+        
+        stage('Build and Push Docker Image') {
+            when {
+                expression { return env.CHANGE_ID != null }  // Only run if it's a PR
+            }
+            steps {
+                withCredentials([string(credentialsId: 'gh-pat', variable: 'GITHUB_PASS')]) {
+
+                    // Docker login step
+                    sh '''
+                        echo "$GITHUB_PASS" | docker login ghcr.io -u "egelhaus" --password-stdin
+                    '''
+
+                    // Set image tag dynamically based on the PR number
+                    sh '''
+                        IMAGE_TAG="ghcr.io/gitroomhq/postiz-app-pr:$PR_NUMBER"
+                        echo "IMAGE_TAG=$IMAGE_TAG" >> image.env
+                    '''
+
+                    // Build Docker image
+                    sh '''
+                        source image.env
+                        docker build -f Dockerfile.dev -t $IMAGE_TAG .
+                    '''
+
+                    // Push Docker image to GitHub Container Registry
+                    sh '''
+                        source image.env
+                        docker push $IMAGE_TAG
+                    '''
+                }
+            }
     }
     post {
         success {