DockerfileLambdaDemoApp

#
# Build the node.js app
#
# Build with whatever CPU the host OS has
FROM node:20-alpine AS node-build-env

# Set the working directory
WORKDIR /app

# Copy just files needed for npm install
COPY src/demo-app/package.json src/demo-app/package-lock.json ./

# Install dependencies
RUN npm ci

# Copy everything from the current directory to the working directory in the image
COPY src/demo-app/ ./

# Build the app
RUN npm run build

#
# During GitHub Actions this gets swapped in for the PR built extension, using sed
#
FROM lambda-dispatch-extension AS extension

#
# Runtime image for demo-app
#
FROM public.ecr.aws/lambda/nodejs:20

# Copy the build output from the build environment
# This is a self-contained single binary file
COPY --from=extension /lambda-dispatch /opt/extensions/lambda-dispatch

# Copy the node.js app
COPY --from=node-build-env /app/dist/ dist/
# This is only used for testing with docker-compose
# It is not necessary to copy this into an app deployed on Lambda
COPY extension/startup.sh ./

# Set the entrypoint
ENTRYPOINT ["node", "dist/app.cjs"]