I see. Good point!
According to pkgs.alpinelinux.org libgcc is a dependency of libstdc++. I didn’t immediately make sense to me though why this is the case.
trkoch
Exadra37
User nobody is not recommended to use to run any app inside or outside a docker container.
Check this issue I open:
The fixed Dockerfile on the issue:
FROM hexpm/elixir:1.11.2-erlang-23.1.2-alpine-3.12.1 as build
# install build dependencies
RUN apk add --no-cache build-base npm git python3
# prepare build dir
WORKDIR /app
# install hex + rebar
RUN mix local.hex --force && \
mix local.rebar --force
# set build ENV
ENV MIX_ENV=dev
# install mix dependencies
COPY mix.exs mix.lock ./
RUN mix deps.get --only $MIX_ENV
RUN mkdir config
# Dependencies sometimes use compile-time configuration. Copying
# these compile-time config files before we compile dependencies
# ensures that any relevant config changes will trigger the dependencies
# to be re-compiled.
COPY config/config.exs config/$MIX_ENV.exs config/
RUN mix deps.compile
# build assets
COPY assets/package.json assets/package-lock.json ./assets/
# install all npm dependencies from scratch
RUN npm --prefix ./assets ci --progress=false --no-audit --loglevel=error
COPY priv priv
# Note: if your project uses a tool like https://purgecss.com/,
# which customizes asset compilation based on what it finds in
# your Elixir templates, you will need to move the asset compilation step
# down so that `lib` is available.
COPY assets assets
# use webpack to compile npm dependencies - https://www.npmjs.com/package/webpack-deploy
RUN npm run --prefix ./assets deploy
RUN mix phx.digest
# compile and build the release
COPY lib lib
RUN mix compile
# changes to config/runtime.exs don't require recompiling the code
COPY config/runtime.exs config/
# uncomment COPY if rel/ exists
# COPY rel rel
RUN mix release
# Start a new build stage so that the final image will only contain
# the compiled release and other runtime necessities
FROM alpine:3.12.1 AS app
RUN apk add --no-cache openssl ncurses-libs libstdc++
ENV USER="phoenix"
ENV HOME=/home/"${USER}"
ENV APP_DIR="${HOME}/app"
# Creates an unprivileged user to be used exclusively to run the Phoenix app
RUN \
addgroup \
-g 1000 \
-S "${USER}" && \
adduser \
-s /bin/sh \
-u 1000 \
-G "${USER}" \
-h "${HOME}" \
-D "${USER}" && \
su "${USER}" sh -c "mkdir ${APP_DIR}"
# Everything from this line onwards will run in the context of the unprivileged user.
USER "${USER}"
WORKDIR "${APP_DIR}"
COPY --from=build --chown="${USER}":"${USER}" /app/_build/prod/rel/my_app ./
ENTRYPOINT ["bin/my_app"]
# Usage:
# * build: sudo docker build -t phoenix/my_app .
# * shell: sudo docker run --rm -it --entrypoint "" -p 80:4000 -p 443:4040 phoenix/my_app sh
# * run: sudo docker run --rm -it -p 80:4000 -p 443:4040 --name my_app phoenix/my_app
# * exec: sudo docker exec -it my_app sh
# * logs: sudo docker logs --follow --tail 100 my_app
#
# Extract the production release to your host machine with:
#
# ```
# mkdir archive
# sudo docker run --rm -it --entrypoint "" -v "$PWD/archive:/home/phoenix/archive" phoenix/my_app sh -c "tar zcf /home/phoenix/archive/app.tar.gz ."
# ls -al archive
# ````
CMD ["start"]
1
te_chris
I’ve followed the update Debian based guide, but am still getting errors on OTP 24 relating to libstdc++6.so.
# start a new build stage so that the final image will only contain
# the compiled release and other runtime necessities
FROM ${RUNNER_IMAGE} as cms
ARG SHORT_SHA
# Assign version number for AppSignal
ENV APP_REVISION=$SHORT_SHA
RUN apt-get update -y && apt-get install -y libstdc++6 openssl libncurses5 locales \
&& apt-get clean && rm -f /var/lib/apt/lists/*_*
# Set the locale
RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen && locale-gen
ENV LANG en_US.UTF-8
ENV LANGUAGE en_US:en
ENV LC_ALL en_US.UTF-8
WORKDIR "/app"
RUN chown nobody /app
# set runner ENV
ENV MIX_ENV="prod"
# Only copy the final release from the build stage
COPY --from=builder --chown=nobody:root /app/_build/${MIX_ENV}/rel/cms ./
USER nobody
ENV HOME=/app
CMD ["bin/cms", "start"]
Has anyone else come across this and fixed it?
0
i-n-g-m-a-r
I’m having the same issues.
My gitlab build passes but the docker image won’t run anymore.
I tried updating elixir:1.11.4-alpine to elixir:1.12.3-alpine and then to elixir:1.13.4-alpine
I tried libgcc libstdc++ ncurses-libs just libstdc++ and libc6-compat
Nothing’s working.
Update: I just noticed it’s erts-12.3.2.1/bin/beam.smp in my case instead of erts-12.0.2/bin/beam.smp
0