Unify AMD and ARM Docker images

+ Initial groundwork for AMD64 builds on ARM/Rosetta. Not currently
viable due to bugs in either Linux or Rosetta which results in a
Sveltekit build hanging indefinitely.

.buildkite/linux/docker/Dockerfile.arm64

@@ -1,71 +0,0 @@
-FROM ubuntu:22.04
-
-ARG DEBIAN_FRONTEND="noninteractive"
-ENV PYTHONPATH=/usr/lib/python3/dist-packages
-
-RUN useradd -d /state -m -u 998 user
-
-RUN apt-get update && apt install --yes gnupg ca-certificates && \
-    apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 32A37959C2FA5C3C99EFBC32A79206696452D198 \
-    && echo "deb https://apt.buildkite.com/buildkite-agent stable main" > /etc/apt/sources.list.d/buildkite-agent.list \
-    && apt-get update \
-    && apt-get install --yes --no-install-recommends \
-    autoconf \
-    bash \
-    buildkite-agent \
-    ca-certificates \
-    curl \
-    findutils \
-    g++ \
-    gcc \
-    git \
-    grep \
-    libdbus-1-3 \
-    libegl1 \
-    libfontconfig1 \
-    libgl1 \
-    libgstreamer-gl1.0-0 \
-    libgstreamer-plugins-base1.0 \
-    libgstreamer1.0-0 \
-    libnss3 \
-    libpulse-mainloop-glib0 \
-    libpulse-mainloop-glib0 \    
-    libssl-dev \
-    libxcomposite1 \
-    libxcursor1 \
-    libxdamage1 \
-    libxi6 \
-    libxkbcommon-x11-0 \
-    libxkbcommon0 \
-    libxkbfile1	\
-    libxrandr2 \
-    libxrender1 \
-    libxtst6 \
-    make \
-    pkg-config \
-    portaudio19-dev \
-    python3-dev \
-    rsync \
-    # -- begin only required for arm64/debian11
-    ninja-build \
-    clang-format \
-    python-is-python3 \
-    python3-pyqt5.qtwebengine \
-    # -- end only required for arm64/debian11    
-    && rm -rf /var/lib/apt/lists/*
-
-RUN mkdir -p /etc/buildkite-agent/hooks && chown -R user /etc/buildkite-agent
-
-COPY buildkite.cfg /etc/buildkite-agent/buildkite-agent.cfg
-COPY environment /etc/buildkite-agent/hooks/environment
-
-RUN mkdir /state/rust && chown user /state/rust
-
-USER user
-
-ENV CARGO_HOME=/state/rust/cargo
-ENV RUSTUP_HOME=/state/rust/rustup
-RUN curl https://sh.rustup.rs -sSf | sh -s -- -y --no-modify-path --default-toolchain none
-
-WORKDIR /code/buildkite
-ENTRYPOINT ["/usr/bin/buildkite-agent", "start"]

.buildkite/linux/docker/build.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+# builds an 'anki-[amd|arm]' image for the current platform
+#
+# for a cross-compile on recent Docker:
+#   docker buildx create --use
+#   docker run --privileged --rm tonistiigi/binfmt --install amd64
+#   docker buildx build --platform linux/amd64 --tag anki-amd64 . --load
+
+. common.inc
+
+DOCKER_BUILDKIT=1 docker build --tag anki-${platform} .

.buildkite/linux/docker/common.inc

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+set -e
+
+if [[ "$(uname -m)" == "x86_64" ]]; then
+    platform="amd"
+else
+    platform="arm"
+fi

.buildkite/linux/docker/run.sh

@@ -1,33 +1,29 @@
 #!/bin/bash
-# - use 'BUILD=1 ./run.sh' to build image & run.
+# - use './run.sh' to run in the foreground
 # - use './run.sh serve' to daemonize.
 
 set -e
 
+. common.inc
+
 if [ "$1" = "serve" ]; then
     extra_args="-d --restart always"
 else
     extra_args="-it"
 fi
 
-if [ $(uname -m) = "aarch64" ]; then
-    arch=arm64
-else
-    arch=amd64
-fi
+name=anki-${platform}
 
-if [ -n "$BUILD" ]; then
-    DOCKER_BUILDKIT=1 docker build -f Dockerfile.${arch} --tag linci .
-fi
-
-if docker container inspect linci > /dev/null 2>&1; then
-    docker stop linci || true
-    docker container rm linci
+# Stop and remove the existing container if it exists.
+# This doesn't delete the associated volume.
+if docker container inspect $name > /dev/null 2>&1; then
+    docker stop $name || true
+    docker container rm $name
 fi
 
 docker run $extra_args \
-    --name linci \
-    -v ci-state:/state \
+    --name $name \
+    -v ${name}-state:/state \
     -e BUILDKITE_AGENT_TOKEN \
     -e BUILDKITE_AGENT_TAGS \
-    linci
+    $name

.buildkite/linux/release-entrypoint

@@ -11,6 +11,7 @@ echo "--- Install n2"
 ./tools/install-n2
 
 if [ $(uname -m) = "aarch64" ]; then
+    export PYTHONPATH=/usr/lib/python3/dist-packages
     ./ninja wheels:anki
 else
     ./ninja bundle