forked-synapse/docker/Dockerfile
Richard van der Hoff 5598556b77
Docker: remove VOLUME directive (#11997)
The driver for this is to stop Complement complaining about it, but as far as I can tell it was pointless and needed to go away anyway.

I'm a bit unclear about what exactly VOLUME does, but I think what it means is that, if you don't override it with an explicit -v argument, then docker run will create a temporary volume, and copy things into it. The temporary volume is then deleted when the container finishes.

That only sounds useful if your image has something to copy into it (otherwise you may as well just use the default root filesystem), and our image notably doesn't copy anything into /data.

So... this wasn't doing anything, except annoying Complement?
2022-02-15 13:59:15 +00:00

107 lines
3.3 KiB
Docker

# Dockerfile to build the matrixdotorg/synapse docker images.
#
# Note that it uses features which are only available in BuildKit - see
# https://docs.docker.com/go/buildkit/ for more information.
#
# To build the image, run `docker build` command from the root of the
# synapse repository:
#
# DOCKER_BUILDKIT=1 docker build -f docker/Dockerfile .
#
# There is an optional PYTHON_VERSION build argument which sets the
# version of python to build against: for example:
#
# DOCKER_BUILDKIT=1 docker build -f docker/Dockerfile --build-arg PYTHON_VERSION=3.9 .
#
ARG PYTHON_VERSION=3.8
###
### Stage 0: builder
###
FROM docker.io/python:${PYTHON_VERSION}-slim as builder
# install the OS build deps
#
# RUN --mount is specific to buildkit and is documented at
# https://github.com/moby/buildkit/blob/master/frontend/dockerfile/docs/syntax.md#build-mounts-run---mount.
# Here we use it to set up a cache for apt, to improve rebuild speeds on
# slow connections.
#
RUN \
--mount=type=cache,target=/var/cache/apt,sharing=locked \
--mount=type=cache,target=/var/lib/apt,sharing=locked \
apt-get update && apt-get install -y \
build-essential \
libffi-dev \
libjpeg-dev \
libpq-dev \
libssl-dev \
libwebp-dev \
libxml++2.6-dev \
libxslt1-dev \
openssl \
rustc \
zlib1g-dev \
&& rm -rf /var/lib/apt/lists/*
# Copy just what we need to pip install
COPY scripts /synapse/scripts/
COPY MANIFEST.in README.rst setup.py synctl /synapse/
COPY synapse/__init__.py /synapse/synapse/__init__.py
COPY synapse/python_dependencies.py /synapse/synapse/python_dependencies.py
# To speed up rebuilds, install all of the dependencies before we copy over
# the whole synapse project so that we this layer in the Docker cache can be
# used while you develop on the source
#
# This is aiming at installing the `install_requires` and `extras_require` from `setup.py`
RUN --mount=type=cache,target=/root/.cache/pip \
pip install --prefix="/install" --no-warn-script-location \
/synapse[all]
# Copy over the rest of the project
COPY synapse /synapse/synapse/
# Install the synapse package itself and all of its children packages.
#
# This is aiming at installing only the `packages=find_packages(...)` from `setup.py
RUN pip install --prefix="/install" --no-deps --no-warn-script-location /synapse
###
### Stage 1: runtime
###
FROM docker.io/python:${PYTHON_VERSION}-slim
LABEL org.opencontainers.image.url='https://matrix.org/docs/projects/server/synapse'
LABEL org.opencontainers.image.documentation='https://github.com/matrix-org/synapse/blob/master/docker/README.md'
LABEL org.opencontainers.image.source='https://github.com/matrix-org/synapse.git'
LABEL org.opencontainers.image.licenses='Apache-2.0'
RUN \
--mount=type=cache,target=/var/cache/apt,sharing=locked \
--mount=type=cache,target=/var/lib/apt,sharing=locked \
apt-get update && apt-get install -y \
curl \
gosu \
libjpeg62-turbo \
libpq5 \
libwebp6 \
xmlsec1 \
libjemalloc2 \
libssl-dev \
openssl \
&& rm -rf /var/lib/apt/lists/*
COPY --from=builder /install /usr/local
COPY ./docker/start.py /start.py
COPY ./docker/conf /conf
EXPOSE 8008/tcp 8009/tcp 8448/tcp
ENTRYPOINT ["/start.py"]
HEALTHCHECK --start-period=5s --interval=15s --timeout=5s \
CMD curl -fSs http://localhost:8008/health || exit 1