Pleroma docker files

.docker.env

HOST=pleroma.example.com
SECRET_KEY_BASE=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

.dockerignore

.git
_build
deps
uploads

dev.secret.exs

use Mix.Config

config :pleroma, Pleroma.Repo,
  adapter: Ecto.Adapters.Postgres,
  username: "postgres",
  password: "postgres",
  database: "pleroma_dev",
  hostname: "localhost",
  pool_size: 10

config :pleroma, Pleroma.Web.Endpoint,
  url: [host: System.get_env("HOST"), scheme: "https", port: 443],
  secret_key_base: System.get_env("SECRET_KEY_BASE")

config :pleroma, :instance,
  name: "pleroma.example.com",
  registrations_open: false

docker-compose.yml

version: '3'
services:

  app:
    build: .
    restart: always
    image: nakanod/pleroma
    environment:
      - MIX_ENV=dev
    env_file:
      - ./.docker.env
    network_mode: host
    ports:
      - "4000:4000"
    volumes:
      - /var/lib/pleroma/uploads:/app/uploads
    logging:
      driver: "json-file"
      options:
        max-size: "50m"
        max-file: "4"

Dockerfile

FROM elixir:1.5.2-slim

EXPOSE 4000
WORKDIR /app

RUN apt-get -y update && \
    apt-get -y install git openssl && \
    mix local.hex --force && \
    mix local.rebar --force && \
    rm -rf /var/lib/apt/lists/*

COPY ./mix.exs /app
COPY ./mix.lock /app
RUN mix deps.get --force

COPY ./config /app/config
COPY ./lib /app/lib
COPY ./priv /app/priv
COPY ./test /app/test
RUN apt-get -y update && \
    apt-get -y install build-essential && \
    mix deps.compile --force && \
    apt-get -y purge --auto-remove build-essential && \
    rm -rf /var/lib/apt/lists/* && \
    rm -rf /tmp/.tmp*

CMD ["mix", "phx.server"]