Jenkinsfile

@@ -8,8 +8,8 @@ pipeline {
   environment {
     CI = 'true'
     NODE_OPTIONS = '--max_old_space_size=2048'
-
     APP_VERSION = "1.0.${BUILD_NUMBER}"
+    DOCKER_BUILDKIT = '1'
   }
 
   stages {
@@ -28,41 +28,13 @@ pipeline {
             returnStdout: true
           ).trim()
         }
-
-          echo "Last commit: ${env.COMMIT_AUTHOR}"
-        }
-      }
-
-
-      /* =========================
-         BACKEND (Python)
-         ========================= */
-
-      stage('Backend: deps') {
-        agent {
-          docker {
-            image 'python:3.12'
-            args '-u root'
-          }
-        }
-        steps {
-          dir('backend') {
-            sh '''
-            set -e
-            python --version
-            python -m venv .venv
-            . .venv/bin/activate
-            pip install --upgrade pip
-            pip install -r requirements-dev.txt
-            '''
-          }
       }
     }
 
     stage('Backend: lint & test') {
       agent {
         docker {
-            image 'python:3.12'
+          image 'python:3.11-slim'
           args '-u root'
         }
       }
@@ -70,7 +42,10 @@ pipeline {
         dir('backend') {
           sh '''
           set -e
+          python -m venv .venv
           . .venv/bin/activate
+          pip install --upgrade pip
+          pip install -r requirements-dev.txt
           ruff check app tests
           pytest
           '''
@@ -78,110 +53,104 @@ pipeline {
       }
     }
 
-      /* =========================
-         FRONTEND (Node)
-         ========================= */
-
-      stage('Frontend: deps') {
+    stage('Frontend: check & build') {
       agent {
         docker {
-            image 'node:20'
+          image 'node:20-slim'
         }
       }
       steps {
         dir('frontend') {
           sh '''
           set -e
-            node --version
-            npm --version
           npm install --no-progress --no-audit --prefer-offline
-            '''
-          }
-        }
-      }
-
-      stage('Frontend: check & test') {
-        agent {
-          docker {
-            image 'node:20'
-          }
-        }
-        steps {
-          dir('frontend') {
-            sh '''
-            set -e
           npm run check
-            '''
-          }
-        }
-      }
-
-      stage('Frontend: build') {
-        agent {
-          docker {
-            image 'node:20'
-          }
-        }
-        steps {
-          dir('frontend') {
-            sh '''
-            set -e
           npm run build
           '''
         }
       }
     }
 
-      /* =========================
-         DOCKER
-         ========================= */
-
     stage('Docker: build images') {
-        when {
-          expression {
-            fileExists('backend/Dockerfile') &&
-            fileExists('frontend/Dockerfile')
-          }
-        }
       agent any
       steps {
         sh '''
         set -e
-        docker version
 
         docker build \
           --build-arg APP_VERSION=${APP_VERSION} \
           --build-arg GIT_COMMIT=${COMMIT_SHORT} \
           --build-arg COMMIT_AUTHOR="${COMMIT_AUTHOR}" \
           --build-arg BUILD_NUMBER=${BUILD_NUMBER} \
-          -t cafeteria-backend:${BUILD_NUMBER} ./backend
+          -t cafeteria-backend:latest \
+          -t cafeteria-backend:${BUILD_NUMBER} \
+          ./backend
 
         docker build \
-          -t cafeteria-frontend:${BUILD_NUMBER} ./frontend
+          -t cafeteria-frontend:latest \
+          -t cafeteria-frontend:${BUILD_NUMBER} \
+          ./frontend
         '''
       }
     }
 
     stage('Deploy frontend & backend') {
+      when {
+        branch 'main'
+      }
+
       agent any
       steps {
         sh '''
         set -e
 
-          echo "Deploying build ${BUILD_NUMBER}"
+        : "${BACKEND_PORT:?Missing BACKEND_PORT}"
+        : "${BACKEND_HEALTH_URL:?Missing BACKEND_HEALTH_URL}"
+        : "${FRONTEND_PORT:?Missing FRONTEND_PORT}"
+        : "${FRONTEND_HEALTH_URL:?Missing FRONTEND_HEALTH_URL}"
 
-          docker rm -f cafeteria-backend cafeteria-frontend 2>/dev/null || true
 
+        # Backend
+        docker tag cafeteria-backend:latest cafeteria-backend:previous || true
+        docker rm -f cafeteria-backend  2>/dev/null || true
 
         docker run -d \
           --name cafeteria-backend \
-            -p 8000:8000 \
-            cafeteria-backend:${BUILD_NUMBER}
+          -p "$BACKEND_PORT":"$BACKEND_PORT" \
+          cafeteria-backend:latest
+
+        sleep 5
+
+        if ! curl -fs "$BACKEND_HEALTH_URL"; then
+            echo "Backend failed, rollback"
+            docker rm -f cafeteria-backend
+            docker run -d \
+                --name cafeteria-backend \
+                -p "$BACKEND_PORT":"$BACKEND_PORT" \
+                cafeteria-backend:previous
+            exit 1
+        fi
+
+        # Frontend
+        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 3000:80 \
-            cafeteria-frontend:${BUILD_NUMBER}
+          -p "$FRONTEND_PORT":80 \
+          cafeteria-frontend:latest
+
+        sleep 3
+
+        if ! curl -fs "$FRONTEND_HEALTH_URL"; then
+            echo "Frontend failed, rollback"
+            docker rm -f cafeteria-frontend
+            docker run -d \
+                --name cafeteria-frontend \
+                -p "$FRONTEND_PORT":80 \
+                cafeteria-frontend:previous
+            exit 1
+        fi
         '''
       }
     }
@@ -189,11 +158,11 @@ pipeline {
 
   post {
     always {
-          script {
-            node {
+      sh '''
+      docker image prune -a -f || true
+      docker builder prune -a -f || true
+      '''
       cleanWs()
     }
   }
-      }
-    }
-  }
+}

backend/Dockerfile

@@ -1,10 +1,22 @@
-FROM python:3.11-slim AS base
+FROM python:3.11-slim AS builder
+WORKDIR /build
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+ && rm -rf /var/lib/apt/lists/*
+
+COPY requirements.txt .
+RUN pip wheel --no-cache-dir --no-deps -r requirements.txt -w /build/wheels
+
+
+FROM python:3.11-slim
+WORKDIR /app
 
 # ---- Build args (desde Jenkins) ----
 ARG APP_VERSION=dev
 ARG GIT_COMMIT=local
 ARG COMMIT_AUTHOR=local
-ARG BUILD_NUMBER=—
+ARG BUILD_NUMBER=local
 
 # ---- Runtime env ----
 ENV APP_VERSION=${APP_VERSION} \
@@ -21,18 +33,10 @@ LABEL app.version="${APP_VERSION}" \
       git.author="${COMMIT_AUTHOR}" \
       build.number="${BUILD_NUMBER}"
 
-
-WORKDIR /app
-
-RUN apt-get update && apt-get install -y --no-install-recommends \
-      build-essential curl \
-    && rm -rf /var/lib/apt/lists/*
-
-COPY requirements.txt .
-RUN pip install --no-cache-dir -r requirements.txt
+COPY --from=builder /build/wheels /wheels
+RUN pip install --no-cache-dir /wheels/* && rm -rf /wheels
 
 COPY app ./app
 
 EXPOSE 8000
-
 CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]