Testing our Docker image with a local deployment

In Chapter 6, we set up our application for usage with Docker. This is a critical step for our TODO List application. Now, it’s time to test the image with Docker Compose to verify that everything is working as expected.

Let’s recap our DockerFile, with a minor modification:

FROM node:18-alpine as builder
WORKDIR /build
COPY package.json ./
COPY package-lock.json ./
ARG NPM_TOKEN
ENV NPM_TOKEN $NPM_TOKEN
RUN npm ci --only=production --ignore-scripts
FROM node:18-alpine
RUN apk update && apk add --no-cache dumb-init
ENV HOME=/home/app
ENV APP_HOME=$HOME/node/
ENV NODE_ENV=production
WORKDIR $APP_HOME
COPY --chown=node:node . $APP_HOME
COPY --chown=node:node --from=builder /build $APP_HOME
USER node
EXPOSE 3000
ENTRYPOINT ["dumb-init"]
CMD ["./node_modules/.bin/fastify", "start", "-a", "0.0.0.0", "-l", "info", "--options", &quot...