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Multistage Elixir 1.11 Phoenix Live View Release Dockerfile
ARG ALPINE_VERSION=3.12.0
FROM hexpm/elixir:1.11.0-erlang-23.1.1-alpine-3.12.0 as builder
ARG APP_VSN="1.0.0"
# Replace `your_app` with your otp application name.
ENV APP_NAME=your_app \
APP_VSN=${APP_VSN} \
MIX_ENV=prod
WORKDIR /opt/app
# Add required packages for building the application.
# If you're not running Phoenix LiveView
# remove the `nodejs` and `npm` lines.
RUN apk update && \
apk upgrade --no-cache && \
apk add --no-cache git \
nodejs=12.18.4-r0 \
npm --update \
build-base && \
mix local.rebar --force && \
mix local.hex --force
COPY mix.exs mix.lock ./
RUN mix do deps.get, deps.compile
# If you're not running Phoenix LiveView
# remove these next two instructions.
COPY ./assets ./assets
RUN cd assets && npm install
COPY . .
# Remove `phx.digest` if you're not using LiveView
RUN mix do compile, phx.digest, release
# Final build stage.
FROM alpine:${ALPINE_VERSION}
RUN apk update && \
apk add --no-cache bash
WORKDIR /opt/app
RUN addgroup -S app
RUN adduser -S app -G app
COPY --from=builder /opt/app/_build/prod/rel .
RUN chown -R app:app /opt/app
USER app
# Run the pending migrations for your application then start it.
# Replace `your_app` and `YourApp` with the otp app name and module respectively.
CMD trap 'exit' INT; \
./your_app/bin/your_app eval "YourApp.Release.migrate" && \
./your_app/bin/your_app start
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