content: FROM archlinux:latest
  
  RUN pacman -Syu --noconfirm \
    && pacman -S --noconfirm php
  
  ARG RELAY=v0.12.0
  
  # Install Relay dependencies
  RUN pacman -S --noconfirm \
    base-devel \
    # hiredis \
    libck \
    lz4
  
  # Install hiredis-ssl
  RUN curl -L https://github.com/redis/hiredis/archive/refs/tags/v1.2.0.tar.gz | tar -xzC /tmp \
    && PREFIX=/usr USE_SSL=1 make -C /tmp/hiredis-1.2.0 install
  
  # Install php-pear
  RUN curl -L https://aur.archlinux.org/cgit/aur.git/snapshot/php-pear.tar.gz | sudo -u nobody tar -xzC /tmp \
    && pushd /tmp/php-pear \
    && sudo -u nobody makepkg --skippgpcheck \
    && pacman -U --noconfirm php-pear-1:1.10.23-2-any.pkg.tar.zst \
    && popd
  
  # Relay requires the `msgpack` extension
  RUN pecl install msgpack \
    && echo "extension = msgpack.so" > $(php-config --ini-dir)/msgpack.ini
  
  # Relay requires the `igbinary` extension
  RUN pecl install igbinary \
    && echo "extension = igbinary.so" > $(php-config --ini-dir)/igbinary.ini
  
  # Download Relay
  RUN ARCH=$(uname -m | sed 's/_/-/') \
    PHP=$(php -r 'echo substr(PHP_VERSION, 0, 3);') \
    && curl -L "https://builds.r2.relay.so/$RELAY/relay-$RELAY-php$PHP-el9-$ARCH.tar.gz" | tar -xz --strip-components=1 -C /tmp
  
  # Copy relay.{so,ini}
  RUN cp "/tmp/relay.ini" "$(php-config --ini-dir)/relay.ini" \
    && cp "/tmp/relay.so" "$(php-config --extension-dir)/relay.so"
  
  # Inject UUID
  RUN UUID=$(cat /proc/sys/kernel/random/uuid) \
    && sed -i "s/00000000-0000-0000-0000-000000000000/$UUID/" "$(php-config --extension-dir)/relay.so"
  