Use multi-stage builds to keep the image smaller. Clean up unnecessary files after install to reduce image size.

Author: letzautomate

Dockerfile.playwright

@@ -1,41 +1,51 @@
-# === Stage 1: Build and install dependencies ===
-FROM mcr.microsoft.com/playwright:v1.53.1-jammy AS builder
+# ---- Build Stage ----
+FROM mcr.microsoft.com/playwright:v1.53.1-jammy AS build
 
-# Install Java & Allure
+# Install Java 11 (required for Allure)
 RUN apt-get update && apt-get install -y wget gnupg2 && \
     wget -qO - https://packages.adoptium.net/artifactory/api/gpg/key/public | gpg --dearmor -o /usr/share/keyrings/adoptium.gpg && \
     echo "deb [signed-by=/usr/share/keyrings/adoptium.gpg] https://packages.adoptium.net/artifactory/deb focal main" | tee /etc/apt/sources.list.d/adoptium.list && \
     apt-get update && apt-get install -y temurin-11-jdk && \
-    npm install -g allure-commandline --force && \
     rm -rf /var/lib/apt/lists/*
 
-# Set up env
+# Install Allure CLI globally
+RUN npm install -g allure-commandline --force
+
+# Set JAVA_HOME for Allure
 ENV JAVA_HOME=/usr/lib/jvm/temurin-11-jdk-amd64
 ENV PATH=$JAVA_HOME/bin:$PATH
 
 WORKDIR /app
+
+# Copy only package files first to cache layer
 COPY package*.json ./
-RUN npm install
 
-# === Stage 2: Final image ===
+# Install Node dependencies
+RUN npm ci
+
+# Copy environment files
+COPY env ./env
+
+# Copy the rest of the application
+COPY . .
+
+# ---- Final Stage ----
 FROM mcr.microsoft.com/playwright:v1.53.1-jammy
 
-# Copy Java, Allure, and installed node_modules from builder
-COPY --from=builder /usr/lib/jvm/temurin-11-jdk-amd64 /usr/lib/jvm/temurin-11-jdk-amd64
-COPY --from=builder /usr/share/keyrings/adoptium.gpg /usr/share/keyrings/adoptium.gpg
-COPY --from=builder /usr/local/lib/node_modules /usr/local/lib/node_modules
-COPY --from=builder /usr/local/bin/allure /usr/local/bin/allure
-COPY --from=builder /app/node_modules /app/node_modules
+# Copy Java and Allure from build stage
+COPY --from=build /usr/lib/jvm/ /usr/lib/jvm/
+COPY --from=build /usr/local/lib/node_modules/allure-commandline /usr/local/lib/node_modules/allure-commandline
+RUN ln -s /usr/local/lib/node_modules/allure-commandline/bin/allure /usr/local/bin/allure
 
-# Set up env again
 ENV JAVA_HOME=/usr/lib/jvm/temurin-11-jdk-amd64
 ENV PATH=$JAVA_HOME/bin:$PATH
 
 WORKDIR /app
-COPY . .
-COPY env ./env  
 
-# Clean unnecessary files
-RUN rm -rf /root/.cache /root/.npm /tmp/*
+# Copy node_modules and built app from build stage
+COPY --from=build /app/node_modules ./node_modules
+COPY --from=build /app/env ./env
+COPY --from=build /app/. .
+COPY --from=build /app/package*.json ./
 
-CMD ["npm", "run", "test:allure"]
+CMD ["npm", "run", "test:allure"]