Extreme minimalist Docker for Strapi

Dockerfile

FROM node:14-bullseye-slim AS runtime

# Set the working directory
WORKDIR /usr/src/unicorn

# Define the build environment
ENV NODE_ENV production

# Copy the application dependencies
COPY package.json yarn.lock ./
RUN yarn install --frozen-lockfile

FROM runtime AS release

# Build the application
COPY src src
COPY config config
COPY database database
COPY public public
COPY favicon.ico ./
RUN yarn run build

FROM scratch

# ELF interpreter
COPY --from=runtime \
  /lib64/ld-linux-x86-64.so.2 \
  /lib64/

# Runtime glibc
COPY --from=runtime \
  /lib/x86_64-linux-gnu \
  /lib/x86_64-linux-gnu
COPY --from=runtime \
  /usr/lib/x86_64-linux-gnu/libstdc++.so.6 \
  /usr/lib/x86_64-linux-gnu/

# Shell script
COPY --from=runtime \
  /usr/bin/env \
  /usr/bin/

# Node runtime
COPY --from=runtime \
  /usr/local/bin/node \
  /usr/bin/

# Application artifacts
COPY --from=release \
  /usr/src/unicorn \
  /usr/src/unicorn

# Set the working directory
WORKDIR /usr/src/unicorn

# Define the run environment
ENV NODE_ENV production

ENTRYPOINT [ "/usr/src/unicorn/node_modules/.bin/strapi" ]

CMD [ "start" ]