Use docker compose

Jenkinsfile.cd

@@ -117,7 +117,7 @@ pipeline {
        DEPLOY
        ========================= */
 
-    stage('Deploy frontend & backend') {
+    stage('Deploy (docker compose)') {
       when {
         branch 'main'
       }
@@ -137,54 +137,12 @@ pipeline {
           sh '''
             set -e
 
-            : "${BACKEND_PORT:?Missing BACKEND_PORT}"
-            : "${BACKEND_HEALTH_URL:?Missing BACKEND_HEALTH_URL}"
-            : "${FRONTEND_PORT:?Missing FRONTEND_PORT}"
-            : "${FRONTEND_HEALTH_URL:?Missing FRONTEND_HEALTH_URL}"
-
             echo "Deploying backend ${BUILD_NUMBER}"
 
-            docker tag cafeteria-backend:latest cafeteria-backend:previous || true
-            docker rm -f cafeteria-backend 2>/dev/null || true
+            echo "BACKEND_TAG=${BUILD_NUMBER}" > .env
+            echo "FRONTEND_TAG=${BUILD_NUMBER}" >> .env
 
-            docker run -d \
-              --name cafeteria-backend \
-              -p "$BACKEND_PORT":"$BACKEND_PORT" \
-              cafeteria-backend:latest
-
-            sleep 5
-
-            if ! curl -fs "$BACKEND_HEALTH_URL"; then
-              echo "Backend failed, rolling back"
-              docker rm -f cafeteria-backend
-              docker run -d \
-                --name cafeteria-backend \
-                -p "$BACKEND_PORT":"$BACKEND_PORT" \
-                cafeteria-backend:previous
-              exit 1
-            fi
-
-            echo "Deploying frontend ${BUILD_NUMBER}"
-
-            docker tag cafeteria-frontend:latest cafeteria-frontend:previous || true
-            docker rm -f cafeteria-frontend 2>/dev/null || true
-
-            docker run -d \
-              --name cafeteria-frontend \
-              -p "$FRONTEND_PORT":80 \
-              cafeteria-frontend:latest
-
-            sleep 3
-
-            if ! curl -fs "$FRONTEND_HEALTH_URL"; then
-              echo "Frontend failed, rolling back"
-              docker rm -f cafeteria-frontend
-              docker run -d \
-                --name cafeteria-frontend \
-                -p "$FRONTEND_PORT":80 \
-                cafeteria-frontend:previous
-              exit 1
-            fi
+            docker compose up -d
           '''
         }
       }

docker-compose.yml

@@ -0,0 +1,39 @@
+version: "3.9"
+
+services:
+  backend:
+    build:
+      context: ./backend
+    image: cafeteria-backend:${BACKEND_TAG}
+    container_name: cafeteria-backend
+    ports:
+      - "8000:8000"
+    environment:
+      - JENKINS_BASE_URL: ${JENKINS_BASE_URL}
+      - JENKINS_JOB_NAME: ${JENKINS_JOB_NAME}
+      - JENKINS_USER: ${JENKINS_USER}
+      - JENKINS_TOKEN: ${JENKINS_TOKEN}
+    restart: unless-stopped
+    healthcheck:
+      test:
+        [
+          "CMD",
+          "python",
+          "-c",
+          "import urllib.request; urllib.request.urlopen('http://localhost:8000/health').read()"
+        ]
+      interval: 10s
+      timeout: 3s
+      retries: 5
+
+  frontend:
+    build:
+      context: ./frontend
+    image: cafeteria-frontend:${fRONTEND_TAG}
+    container_name: cafeteria-frontend
+    ports:
+      - "80:80"
+    depends_on:
+      backend:
+        condition: service_healthy
+    restart: unless-stopped

jenkins/Dockerfile.jenkins

@@ -0,0 +1,12 @@
+FROM jenkins/jenkins:lts
+
+USER root
+
+RUN apt-get update \
+ && apt-get install -y docker.io curl \
+ && curl -L https://github.com/docker/compose/releases/download/v2.27.0/docker-compose-linux-x86_64 \
+      -o /usr/local/bin/docker-compose \
+ && chmod +x /usr/local/bin/docker-compose \
+ && rm -rf /var/lib/apt/lists/*
+
+USER jenkins

jenkins/jenkins-compose.yml

@@ -0,0 +1,26 @@
+version: "3.9"
+
+services:
+  jenkins:
+    build:
+      context: .
+      dockerfile: Dockerfile.jenkins
+    container_name: jenkins
+    ports:
+      - "8080:8080"
+      - "50000:50000"
+    volumes:
+      - jenkins_home:/var/jenkins_home
+      - /var/run/docker.sock:/var/run/docker.sock
+    group_add:
+      - "${DOCKER_GID}"
+    networks:
+      - ci-net
+    restart: unless-stopped
+
+volumes:
+  jenkins_home:
+
+networks:
+  ci-net:
+    external: true