How can I optimize my Docker Compose builds?

How can I optimize my Docker Compose builds?

You can optimize your Docker Compose builds by using multi-stage builds, caching layers, and minimizing the number of layers.

What are multi-stage builds and how do they help?

Multi-stage builds allow you to use multiple FROM statements in your Dockerfile, which helps reduce the final image size by only including necessary artifacts.

Can you give me an example of a multi-stage Dockerfile?

Sure! Here's a simple example:

# First stage: build the application
FROM node:14 AS build
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
RUN npm run build

# Second stage: serve the application
FROM nginx:alpine
COPY --from=build /app/build /usr/share/nginx/html