​在群晖docker上装elmlang可视调试编码器ellie

  username: "postgres",
  password: "postgres",
  database: "ellie",
  hostname: "database",
  port: 5432,
  ssl: false,

# Install postgres-client
RUN echo "deb http://apt.postgresql.org/pub/repos/apt/ stretch-pgdg main" >> /etc/apt/sources.list.d/pgdg.list \
    && wget -q https://www.postgresql.org/media/keys/ACCC4CF8.asc -O - | apt-key add - \
    && apt-get update \
    && apt-get -yq --no-install-recommends install inotify-tools postgresql-client-9.5

# Download Elm platform binaries
RUN mkdir -p /tmp/elm_bin/0.18.0 && mkdir -p /tmp/elm_bin/0.19.0 \
    # goon executable for Procelain Elixir library, to run executables in Elixir processes
    && wget -q https://github.com/alco/goon/releases/download/v1.1.1/goon_linux_386.tar.gz -O /tmp/goon.tar.gz \
    && tar -xvC /tmp/elm_bin -f /tmp/goon.tar.gz \
    && chmod +x /tmp/elm_bin/goon \
    && rm /tmp/goon.tar.gz \
    # Elm Platform 0.18
    && wget -q https://github.com/elm-lang/elm-platform/releases/download/0.18.0-exp/elm-platform-linux-64bit.tar.gz -O /tmp/platform-0.18.0.tar.gz \
    && tar -xvC /tmp/elm_bin/0.18.0 -f /tmp/platform-0.18.0.tar.gz \
    && rm /tmp/platform-0.18.0.tar.gz \
    # Elm Format 0.18
    && wget -q https://github.com/avh4/elm-format/releases/download/0.7.0-exp/elm-format-0.18-0.7.0-exp-linux-x64.tgz -O /tmp/format-0.18.0.tar.gz \
    && tar -xvC /tmp/elm_bin/0.18.0 -f /tmp/format-0.18.0.tar.gz \
    && rm /tmp/format-0.18.0.tar.gz \
    && chmod +x /tmp/elm_bin/0.18.0/* \
    # Elm Platform 0.19
    && wget -q https://github.com/elm/compiler/releases/download/0.19.0/binaries-for-linux.tar.gz -O /tmp/platform-0.19.0.tar.gz \
    && tar -xvC /tmp/elm_bin/0.19.0 -f /tmp/platform-0.19.0.tar.gz \
    && rm /tmp/platform-0.19.0.tar.gz \
    && chmod +x /tmp/elm_bin/0.19.0/* \
    # Elm Format 0.19
    && wget -q https://github.com/avh4/elm-format/releases/download/0.8.0-rc3/elm-format-0.19-0.8.0-rc3-linux-x64.tgz -O /tmp/format-0.19.0.tar.gz \
    && tar -xvC /tmp/elm_bin/0.19.0 -f /tmp/format-0.19.0.tar.gz \
    && rm /tmp/format-0.19.0.tar.gz \
    && chmod +x /tmp/elm_bin/0.19.0/* \
    # 以上都是准备elmlang的binaries到tmp下的原逻辑，，以下准备整个app执行环境,命名为tmp2是为了将这二步骤以对应的方式列出。
    # 这里的tmp2，其实对应原版的dockerfile中是 add . /app，只是原版的构建出来在单机跑起来没事，在迁移安装到别的docker主机上跑起来，会提示找不到文件(定位不到正确的app顶层。所以deps.get时会找不到package.json等,entrypoint也找不到run.sh)。你多构建几次原版dockerfile与这里对比就知道了。
    # 你可能已经注意到这条很长的RUN，它将所有关于生成app的逻辑都维持在一个RUN中，否则就超了docker构建时的分层文件系统了，会导致不意料的事情发生。猜测原版 add . /app 就是没有维持在同一个文件系统中。docker-compose.yml中的volume也会不能生效。
    && git clone https://github.com/minlearn/ellie-corrected /tmp2 \
    && mkdir -p /tmp2/priv/bin \
    && cp -r /tmp/elm_bin/* /tmp2/priv/bin \
    && mkdir -p /tmp2/priv/elm_home \
    # 安装elixir相关的所有扩展并生成项目的数据库文件
    && cd /tmp2 \
    && mix deps.get \
    && mix compile \
    && mix do loadpaths, absinthe.schema.json /tmp2/priv/graphql/schema.json \
    ## 安装nodejs相关的所有扩展，并生成项目的webpack静态文件
    && cd /tmp2/assets \
    && npm install \
    && npm run graphql \
    && npm run build

ENV MIX_ENV=prod \
    NODE_ENV=production \
    PORT=4000 \
    ELM_HOME=/tmp2/priv/elm_home \
  SECRET_KEY_BASE="+ODF8PyQMpBDb5mxA117MqkLne/bGi0PZoTl5uIHAzck2hDAJ8uGJPzark0Aolyi"

# WORKDIR的主要作用就是定义接下来所有指令，尤其是entrypoint等的路径
WORKDIR /tmp2
EXPOSE 4000
RUN chmod +x /tmp2/run.sh
ENTRYPOINT ["/tmp2/run.sh"]

#! /usr/bin/env bash
set -e
cd /tmp2
until PGPASSWORD=postgres psql -h "database" -U "postgres" -c '\q'; do
  >&2 echo "Postgres is unavailable - sleeping"
  sleep 5
done
mix ecto.create
mix ecto.migrate
mix phx.server

ellie:
  image: minlearn/ellie-corrected
  links:
  - database:database
  ports:
  - 4000:4000
  restart: always
  environment:
  - SERVER_HOST=52.81.25.39
database:
  image: postgres:9.5
  environment:
  - POSTGRES_PASSWORD=postgres
  restart: always