Added jenkinsfile

jenkinsfile

@@ -0,0 +1,20 @@
+pipeline {
+    agent { label 'jenkins-agent' }
+    stages {
+        stage('Build') {
+            steps {
+                sh 'docker-compose build'
+            }
+        }
+        stage('Test') {
+            steps {
+                sh 'docker-compose run --rm app python -m pytest'
+            }
+        }
+        stage('Deploy') {
+            steps {
+                sh 'docker-compose up -d'
+            }
+        }
+    }
+}