Dockerfile

# syntax=docker/dockerfile:1.8

# This file is designed for production server deployment, not local development work
# For a containerized local dev environment, see: https://github.com/mastodon/mastodon/blob/main/README.md#docker

# Please see https://docs.docker.com/engine/reference/builder for information about
# the extended buildx capabilities used in this file.
# Make sure multiarch TARGETPLATFORM is available for interpolation
# See: https://docs.docker.com/build/building/multi-platform/
ARG TARGETPLATFORM=${TARGETPLATFORM}
ARG BUILDPLATFORM=${BUILDPLATFORM}

# Ruby image to use for base image, change with [--build-arg RUBY_VERSION="3.3.x"]
# renovate: datasource=docker depName=docker.io/ruby
ARG RUBY_VERSION="3.3.4"
# # Node version to use in base image, change with [--build-arg NODE_MAJOR_VERSION="20"]
# renovate: datasource=node-version depName=node
ARG NODE_MAJOR_VERSION="20"
# Debian image to use for base image, change with [--build-arg DEBIAN_VERSION="bookworm"]
ARG DEBIAN_VERSION="bookworm"
# Node image to use for base image based on combined variables (ex: 20-bookworm-slim)
FROM docker.io/node:${NODE_MAJOR_VERSION}-${DEBIAN_VERSION}-slim AS node
# Ruby image to use for base image based on combined variables (ex: 3.3.x-slim-bookworm)
FROM docker.io/ruby:${RUBY_VERSION}-slim-${DEBIAN_VERSION} AS ruby

# Resulting version string is vX.X.X-MASTODON_VERSION_PRERELEASE+MASTODON_VERSION_METADATA
# Example: v4.3.0-nightly.2023.11.09+pr-123456
# Overwrite existence of 'alpha.X' in version.rb [--build-arg MASTODON_VERSION_PRERELEASE="nightly.2023.11.09"]
ARG MASTODON_VERSION_PRERELEASE=""
# Append build metadata or fork information to version.rb [--build-arg MASTODON_VERSION_METADATA="pr-123456"]
ARG MASTODON_VERSION_METADATA=""

# Allow Ruby on Rails to serve static files
# See: https://docs.joinmastodon.org/admin/config/#rails_serve_static_files
ARG RAILS_SERVE_STATIC_FILES="true"
# Allow to use YJIT compiler
# See: https://github.com/ruby/ruby/blob/v3_2_4/doc/yjit/yjit.md
ARG RUBY_YJIT_ENABLE="1"
# Timezone used by the Docker container and runtime, change with [--build-arg TZ=Europe/Berlin]
ARG TZ="Etc/UTC"
# Linux UID (user id) for the mastodon user, change with [--build-arg UID=1234]
ARG UID="991"
# Linux GID (group id) for the mastodon user, change with [--build-arg GID=1234]
ARG GID="991"

# Apply Mastodon build options based on options above
ENV \
# Apply Mastodon version information
  MASTODON_VERSION_PRERELEASE="${MASTODON_VERSION_PRERELEASE}" \
  MASTODON_VERSION_METADATA="${MASTODON_VERSION_METADATA}" \
# Apply Mastodon static files and YJIT options
  RAILS_SERVE_STATIC_FILES=${RAILS_SERVE_STATIC_FILES} \
  RUBY_YJIT_ENABLE=${RUBY_YJIT_ENABLE} \
# Apply timezone
  TZ=${TZ}

ENV \
# Configure the IP to bind Mastodon to when serving traffic
  BIND="0.0.0.0" \
# Use production settings for Yarn, Node and related nodejs based tools
  NODE_ENV="production" \
# Use production settings for Ruby on Rails
  RAILS_ENV="production" \
# Add Ruby and Mastodon installation to the PATH
  DEBIAN_FRONTEND="noninteractive" \
  PATH="${PATH}:/opt/ruby/bin:/opt/mastodon/bin" \
# Optimize jemalloc 5.x performance
  MALLOC_CONF="narenas:2,background_thread:true,thp:never,dirty_decay_ms:1000,muzzy_decay_ms:0" \
# Enable libvips, should not be changed
  MASTODON_USE_LIBVIPS=true \
# Sidekiq will touch tmp/sidekiq_process_has_started_and_will_begin_processing_jobs to indicate it is ready. This can be used for a readiness check in Kubernetes
  MASTODON_SIDEKIQ_READY_FILENAME=sidekiq_process_has_started_and_will_begin_processing_jobs

# Set default shell used for running commands
SHELL ["/bin/bash", "-o", "pipefail", "-o", "errexit", "-c"]

ARG TARGETPLATFORM

RUN echo "Target platform is $TARGETPLATFORM"

RUN \
# Remove automatic apt cache Docker cleanup scripts
  rm -f /etc/apt/apt.conf.d/docker-clean; \
# Sets timezone
  echo "${TZ}" > /etc/localtime; \
# Creates mastodon user/group and sets home directory
  groupadd -g "${GID}" mastodon; \
  useradd -l -u "${UID}" -g "${GID}" -m -d /opt/mastodon mastodon; \
# Creates /mastodon symlink to /opt/mastodon
  ln -s /opt/mastodon /mastodon;

# Set /opt/mastodon as working directory
WORKDIR /opt/mastodon

# hadolint ignore=DL3008,DL3005
RUN \
# Mount Apt cache and lib directories from Docker buildx caches
--mount=type=cache,id=apt-cache-${TARGETPLATFORM},target=/var/cache/apt,sharing=locked \
--mount=type=cache,id=apt-lib-${TARGETPLATFORM},target=/var/lib/apt,sharing=locked \
# Apt update & upgrade to check for security updates to Debian image
  apt-get update; \
  apt-get dist-upgrade -yq; \
# Install jemalloc, curl and other necessary components
  apt-get install -y --no-install-recommends \
    curl \
    file \
    libjemalloc2 \
    patchelf \
    procps \
    tini \
    tzdata \
    wget \
  ; \
# Patch Ruby to use jemalloc
  patchelf --add-needed libjemalloc.so.2 /usr/local/bin/ruby; \
# Discard patchelf after use
  apt-get purge -y \
    patchelf \
  ;

# Create temporary build layer from base image
FROM ruby AS build

# Copy Node package configuration files into working directory
COPY package.json yarn.lock .yarnrc.yml /opt/mastodon/
COPY .yarn /opt/mastodon/.yarn

COPY --from=node /usr/local/bin /usr/local/bin
COPY --from=node /usr/local/lib /usr/local/lib

ARG TARGETPLATFORM

# hadolint ignore=DL3008
RUN \
# Mount Apt cache and lib directories from Docker buildx caches
--mount=type=cache,id=apt-cache-${TARGETPLATFORM},target=/var/cache/apt,sharing=locked \
--mount=type=cache,id=apt-lib-${TARGETPLATFORM},target=/var/lib/apt,sharing=locked \
# Install build tools and bundler dependencies from APT
  apt-get install -y --no-install-recommends \
    autoconf \
    automake \
    build-essential \
    cmake \
    git \
    libgdbm-dev \
    libglib2.0-dev \
    libgmp-dev \
    libicu-dev \
    libidn-dev \
    libpq-dev \
    libssl-dev \
    libtool \
    meson \
    nasm \
    pkg-config \
    shared-mime-info \
    xz-utils \
	# libvips components
    libcgif-dev \
    libexif-dev \
    libexpat1-dev \
    libgirepository1.0-dev \
    libheif-dev \
    libimagequant-dev \
    libjpeg62-turbo-dev \
    liblcms2-dev \
    liborc-dev \
    libspng-dev \
    libtiff-dev \
    libwebp-dev \
  # ffmpeg components
    libdav1d-dev \
    liblzma-dev \
    libmp3lame-dev \
    libopus-dev \
    libsnappy-dev \
    libvorbis-dev \
    libvpx-dev \
    libx264-dev \
    libx265-dev \
  ;

RUN \
# Configure Corepack
  rm /usr/local/bin/yarn*; \
  corepack enable; \
  corepack prepare --activate;

# Create temporary libvips specific build layer from build layer
FROM build AS libvips

# libvips version to compile, change with [--build-arg VIPS_VERSION="8.15.2"]
# renovate: datasource=github-releases depName=libvips packageName=libvips/libvips
ARG VIPS_VERSION=8.15.2
# libvips download URL, change with [--build-arg VIPS_URL="https://github.com/libvips/libvips/releases/download"]
ARG VIPS_URL=https://github.com/libvips/libvips/releases/download

WORKDIR /usr/local/libvips/src

RUN \
  curl -sSL -o vips-${VIPS_VERSION}.tar.xz ${VIPS_URL}/v${VIPS_VERSION}/vips-${VIPS_VERSION}.tar.xz; \
  tar xf vips-${VIPS_VERSION}.tar.xz; \
  cd vips-${VIPS_VERSION}; \
  meson setup build --prefix /usr/local/libvips --libdir=lib -Ddeprecated=false -Dintrospection=disabled -Dmodules=disabled -Dexamples=false; \
  cd build; \
  ninja; \
  ninja install;

# Create temporary ffmpeg specific build layer from build layer
FROM build AS ffmpeg

# ffmpeg version to compile, change with [--build-arg FFMPEG_VERSION="7.0.x"]
# renovate: datasource=repology depName=ffmpeg packageName=openpkg_current/ffmpeg
ARG FFMPEG_VERSION=7.0.1
# ffmpeg download URL, change with [--build-arg FFMPEG_URL="https://ffmpeg.org/releases"]
ARG FFMPEG_URL=https://ffmpeg.org/releases

WORKDIR /usr/local/ffmpeg/src

RUN \
  curl -sSL -o ffmpeg-${FFMPEG_VERSION}.tar.xz ${FFMPEG_URL}/ffmpeg-${FFMPEG_VERSION}.tar.xz; \
  tar xf ffmpeg-${FFMPEG_VERSION}.tar.xz; \
  cd ffmpeg-${FFMPEG_VERSION}; \
  ./configure \
    --prefix=/usr/local/ffmpeg \
    --toolchain=hardened \
    --disable-debug \
    --disable-devices \
    --disable-doc \
    --disable-ffplay \
    --disable-network \
    --disable-static \
    --enable-ffmpeg \
    --enable-ffprobe \
    --enable-gpl \
    --enable-libdav1d \
    --enable-libmp3lame \
    --enable-libopus \
    --enable-libsnappy \
    --enable-libvorbis \
    --enable-libvpx \
    --enable-libwebp \
    --enable-libx264 \
    --enable-libx265 \
    --enable-shared \
    --enable-version3 \
  ; \
  make -j$(nproc); \
  make install;

# Create temporary bundler specific build layer from build layer
FROM build AS bundler

ARG TARGETPLATFORM

# Copy Gemfile config into working directory
COPY Gemfile* /opt/mastodon/

RUN \
# Mount Ruby Gem caches
--mount=type=cache,id=gem-cache-${TARGETPLATFORM},target=/usr/local/bundle/cache/,sharing=locked \
# Configure bundle to prevent changes to Gemfile and Gemfile.lock
  bundle config set --global frozen "true"; \
# Configure bundle to not cache downloaded Gems
  bundle config set --global cache_all "false"; \
# Configure bundle to only process production Gems
  bundle config set --local without "development test"; \
# Configure bundle to not warn about root user
  bundle config set silence_root_warning "true"; \
# Download and install required Gems
  bundle install -j"$(nproc)";

# Create temporary node specific build layer from build layer
FROM build AS yarn

ARG TARGETPLATFORM

# Copy Node package configuration files into working directory
COPY package.json yarn.lock .yarnrc.yml /opt/mastodon/
COPY streaming/package.json /opt/mastodon/streaming/
COPY .yarn /opt/mastodon/.yarn

# hadolint ignore=DL3008
RUN \
--mount=type=cache,id=corepack-cache-${TARGETPLATFORM},target=/usr/local/share/.cache/corepack,sharing=locked \
--mount=type=cache,id=yarn-cache-${TARGETPLATFORM},target=/usr/local/share/.cache/yarn,sharing=locked \
# Install Node packages
  yarn workspaces focus --production @mastodon/mastodon;

# Create temporary assets build layer from build layer
FROM build AS precompiler

# Copy Mastodon sources into precompiler layer
COPY . /opt/mastodon/

# Copy bundler and node packages from build layer to container
COPY --from=yarn /opt/mastodon /opt/mastodon/
COPY --from=bundler /opt/mastodon /opt/mastodon/
COPY --from=bundler /usr/local/bundle/ /usr/local/bundle/
# Copy libvips components to layer for precompiler
COPY --from=libvips /usr/local/libvips/bin /usr/local/bin
COPY --from=libvips /usr/local/libvips/lib /usr/local/lib

ARG TARGETPLATFORM

RUN \
  ldconfig; \
# Use Ruby on Rails to create Mastodon assets
  SECRET_KEY_BASE_DUMMY=1 \
  bundle exec rails assets:precompile; \
# Cleanup temporary files
  rm -fr /opt/mastodon/tmp;

# Prep final Mastodon Ruby layer
FROM ruby AS mastodon

ARG TARGETPLATFORM

# hadolint ignore=DL3008
RUN \
# Mount Apt cache and lib directories from Docker buildx caches
--mount=type=cache,id=apt-cache-${TARGETPLATFORM},target=/var/cache/apt,sharing=locked \
--mount=type=cache,id=apt-lib-${TARGETPLATFORM},target=/var/lib/apt,sharing=locked \
# Mount Corepack and Yarn caches from Docker buildx caches
--mount=type=cache,id=corepack-cache-${TARGETPLATFORM},target=/usr/local/share/.cache/corepack,sharing=locked \
--mount=type=cache,id=yarn-cache-${TARGETPLATFORM},target=/usr/local/share/.cache/yarn,sharing=locked \
# Apt update install non-dev versions of necessary components
  apt-get install -y --no-install-recommends \
    libexpat1 \
    libglib2.0-0 \
    libicu72 \
    libidn12 \
    libpq5 \
    libreadline8 \
    libssl3 \
    libyaml-0-2 \
  # libvips components
    libcgif0 \
    libexif12 \
    libheif1 \
    libimagequant0 \
    libjpeg62-turbo \
    liblcms2-2 \
    liborc-0.4-0 \
    libspng0 \
    libtiff6 \
    libwebp7 \
    libwebpdemux2 \
    libwebpmux3 \
  # ffmpeg components
    libdav1d6 \
    libmp3lame0 \
    libopencore-amrnb0 \
    libopencore-amrwb0 \
    libopus0 \
    libsnappy1v5 \
    libtheora0 \
    libvorbis0a \
    libvorbisenc2 \
    libvorbisfile3 \
    libvpx7 \
    libx264-164 \
    libx265-199 \
  ;

# Copy Mastodon sources into final layer
COPY . /opt/mastodon/

# Copy compiled assets to layer
COPY --from=precompiler /opt/mastodon/public/packs /opt/mastodon/public/packs
COPY --from=precompiler /opt/mastodon/public/assets /opt/mastodon/public/assets
# Copy bundler components to layer
COPY --from=bundler /usr/local/bundle/ /usr/local/bundle/
# Copy libvips components to layer
COPY --from=libvips /usr/local/libvips/bin /usr/local/bin
COPY --from=libvips /usr/local/libvips/lib /usr/local/lib
# Copy ffpmeg components to layer
COPY --from=ffmpeg /usr/local/ffmpeg/bin /usr/local/bin
COPY --from=ffmpeg /usr/local/ffmpeg/lib /usr/local/lib

RUN \
  ldconfig; \
# Smoketest media processors
  vips -v; \
  ffmpeg -version; \
  ffprobe -version;

RUN \
  # Precompile bootsnap code for faster Rails startup
  bundle exec bootsnap precompile --gemfile app/ lib/;

RUN \
# Pre-create and chown system volume to Mastodon user
  mkdir -p /opt/mastodon/public/system; \
  chown mastodon:mastodon /opt/mastodon/public/system; \
# Set Mastodon user as owner of tmp folder
  chown -R mastodon:mastodon /opt/mastodon/tmp;

# Set the running user for resulting container
USER mastodon
# Expose default Puma ports
EXPOSE 3000
# Set container tini as default entry point
ENTRYPOINT ["/usr/bin/tini", "--"]