Add Multi Stage Dockerfile and docker-compose Files

.dockerignore

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+**/.classpath
+**/.dockerignore
+**/.env
+**/.git
+**/.gitignore
+**/.project
+**/.settings
+**/.toolstarget
+**/.vs
+**/.vscode
+**/*.*proj.user
+**/*.dbmdl
+**/*.jfm
+**/azds.yaml
+**/charts
+**/docker-compose*
+**/Dockerfile*
+**/node_modules
+**/npm-debug.log
+**/obj
+**/secrets.dev.yaml
+**/values.dev.yaml
+
+# Ignore bundler config.
+/.bundle
+
+# Ignore all logfiles and tempfiles.
+/log/*
+/tmp/*
+!/log/.keep
+!/tmp/.keep
+
+# Ignore uploaded files in development.
+/storage/*
+!/storage/.keep
+
+/public/assets
+.byebug_history
+
+# Ignore master key for decrypting credentials and more.
+/config/master.key
+
+/public/packs
+/public/packs-test
+/node_modules
+/yarn-error.log
+yarn-debug.log*
+.yarn-integrity
+
+README.md
+
+**/.DS_Store
+
+# The directory Mix will write compiled artifacts to.
+/_build/
+
+# If you run "mix test --cover", coverage assets end up here.
+/cover/
+
+# The directory Mix downloads your dependencies sources to.
+/deps/
+
+# Where 3rd-party dependencies like ExDoc output generated docs.
+/doc/
+
+# Ignore .fetch files in case you like to edit your project deps locally.
+/.fetch
+
+# If the VM crashes, it generates a dump, let's ignore it too.
+erl_crash.dump
+
+# Also ignore archive artifacts (built via "mix archive.build").
+*.ez
+
+# Ignore package tarball (built via "mix hex.build").
+flix-*.tar
+
+# If NPM crashes, it generates a log, let's ignore it too.
+npm-debug.log
+
+# The directory NPM downloads your dependencies sources to.
+/assets/node_modules/
+
+# Since we are building assets from assets/,
+# we ignore priv/static. You may want to comment
+# this depending on your deployment strategy.
+/priv/static/
+/uploads
+
+# Ignore VS Code application files.
+/.metals/
+/.vscode/

Dockerfile

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+##
+## Base
+##
+
+FROM elixir:1.12.3-alpine as base
+
+# labels from https://github.com/opencontainers/image-spec/blob/master/annotations.md
+LABEL [email protected]
+LABEL org.opencontainers.image.created=$CREATED_DATE
+LABEL org.opencontainers.image.revision=$SOURCE_COMMIT
+LABEL org.opencontainers.image.title="Zero To GraphQL Using Phoenix"
+LABEL org.opencontainers.image.url=https://hub.docker.com/u/conradwt/zero-phoenix
+LABEL org.opencontainers.image.source=https://github.com/conradwt/zero-to-graphql-using-phoenix
+LABEL org.opencontainers.image.licenses=MIT
+LABEL com.conradtaylor.elixir_version=$ELIXIR_VERSION
+
+# set this with shell variables at build-time.
+# If they aren't set, then not-set will be default.
+ARG CREATED_DATE=not-set
+ARG SOURCE_COMMIT=not-set
+
+# environment variables
+ENV USER=darnoc
+ENV APP_PATH /home/${USER}/app
+ENV GID=1000
+ENV HEX_HOME ${APP_PATH}/.hex
+ENV MIX_HOME ${APP_PATH}/.mix
+ENV PORT 4000
+ENV TMP_PATH /tmp/
+ENV UID=1000
+
+# creates an unprivileged user to be used exclusively to run the Phoenix app
+RUN \
+  addgroup \
+   -g "${GID}" \
+   -S "${USER}" \
+  && adduser \
+   -s /bin/sh \
+   -u "${UID}" \
+   -G "${USER}" \
+   -h "/home/${USER}" \
+   -D "${USER}" \
+  && su "${USER}"
+
+# copy entrypoint scripts and grant execution permissions
+# COPY ./dev-docker-entrypoint.sh /usr/local/bin/dev-entrypoint.sh
+# COPY ./test-docker-entrypoint.sh /usr/local/bin/test-entrypoint.sh
+# RUN chmod +x /usr/local/bin/dev-entrypoint.sh && chmod +x /usr/local/bin/test-entrypoint.sh
+
+#
+# https://pkgs.alpinelinux.org/packages?name=&branch=v3.14
+#
+
+# install build and runtime dependencies
+RUN apk -U add --no-cache \
+  build-base=0.5-r2 \
+  bzip2=1.0.8-r1 \
+  ca-certificates=20191127-r5 \
+  curl=7.79.1-r0 \
+  fontconfig=2.13.1-r4 \
+  git=2.32.0-r0 \
+  inotify-tools=3.20.11.0-r0 \
+  npm=7.17.0-r0 \
+  postgresql-dev=13.4-r0 \
+  python3=3.9.5-r1 \
+  tini=0.19.0-r0 \
+  tzdata=2021a-r0 && \
+  rm -rf /var/cache/apk/* && \
+  mkdir -p $APP_PATH
+
+ENV MIX_ENV=prod
+
+EXPOSE ${PORT}
+ENV PORT ${PORT}
+
+WORKDIR ${APP_PATH}
+
+# create the MIX_HOME directory
+RUN mkdir -p ${MIX_HOME}
+
+# create the HEX_HOME directory
+RUN mkdir -p ${HEX_HOME}
+
+# install hex + rebar
+RUN mix local.hex --force && \
+    mix local.rebar --force
+
+# install mix dependencies
+COPY mix.exs mix.lock ./
+COPY config config
+RUN mix do deps.get, deps.compile
+
+# build assets
+COPY assets/package.json assets/package-lock.json ./assets/
+RUN npm --prefix ./assets ci --progress=false --no-audit --loglevel=error
+
+COPY priv priv
+COPY assets assets
+RUN npm run --prefix ./assets deploy
+RUN mix phx.digest
+
+# compile and build release
+COPY lib lib
+# uncomment COPY if rel/ exists
+# COPY rel rel
+RUN mix do compile, release
+
+RUN chown ${USER}:${USER} ${APP_PATH}
+
+ENTRYPOINT ["/sbin/tini", "--"]
+
+##
+## Development
+##
+
+FROM base as dev
+
+ENV MIX_ENV=dev
+
+# install mix dependencies
+RUN mix do deps.get, deps.compile
+
+# build assets
+RUN npm --prefix ./assets install
+
+RUN npm --prefix ./assets rebuild node-sass
+
+COPY test test
+
+COPY dev.entrypoint.sh dev.entrypoint.sh
+
+RUN chmod +x dev.entrypoint.sh
+
+CMD ["mix", "phx.server"]
+
+##
+## Test
+##
+
+FROM dev as test
+
+COPY . .
+
+RUN mix test
+
+##
+## Production
+##
+
+FROM alpine:3.14.2 as prod
+
+#
+# https://pkgs.alpinelinux.org/packages?name=&branch=v3.14
+#
+
+RUN apk add --no-cache \
+  openssl=1.1.1l-r0 \
+  ncurses-libs=6.2_p20210612-r0
+
+WORKDIR /app
+
+ENV USER=darnoc
+ENV UID=1000
+ENV GID=1000
+
+# creates an unprivileged user to be used exclusively to run the Phoenix app
+RUN \
+  addgroup \
+   -g "${GID}" \
+   -S "${USER}" \
+  && adduser \
+   -s /bin/sh \
+   -u "${UID}" \
+   -G "${USER}" \
+   -h "/home/${USER}" \
+   -D "${USER}" \
+  && su "${USER}"
+
+USER ${USER}:${USER}
+
+COPY --from=base --chown=${USER}:${USER} /home/${USER}/app/_build/prod/rel/flix ./
+
+CMD ["bin/flix", "start"]