synapse/docker/Dockerfile
Eric Eastwood 0a778c135f
Make pip install faster in Docker build for Complement testing (#9610)
Make pip install faster in Docker build for [Complement](https://github.com/matrix-org/complement) testing.

If files have changed in a `COPY` command, Docker will invalidate all of the layers below. So I changed the order of operations to install all dependencies before we `COPY synapse /synapse/synapse/`. This allows Docker to use our cached layer of dependencies even when we change the source of Synapse and speed up builds dramatically! `53.5s` -> `3.7s` builds 🤘

As an alternative, I did try using BuildKit caches but this still took 30 seconds overall on that step. 15 seconds to gather the dependencies from the cache and another 15 seconds to `Installing collected packages`.

Fix https://github.com/matrix-org/synapse/issues/9364
2021-03-26 18:42:58 +00:00

92 lines
2.6 KiB
Docker

# Dockerfile to build the matrixdotorg/synapse docker images.
#
# To build the image, run `docker build` command from the root of the
# synapse repository:
#
# 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 build -f docker/Dockerfile --build-arg PYTHON_VERSION=3.6 .
#
ARG PYTHON_VERSION=3.8
###
### Stage 0: builder
###
FROM docker.io/python:${PYTHON_VERSION}-slim as builder
LABEL org.opencontainers.image.url='https://matrix.org/docs/projects/server/synapse'
LABEL org.opencontainers.image.documentation='https://github.com/matrix-org/synapse/blob/master/docker/README.md'
LABEL org.opencontainers.image.source='https://github.com/matrix-org/synapse.git'
LABEL org.opencontainers.image.licenses='Apache-2.0'
# install the OS build deps
RUN apt-get update && apt-get install -y \
build-essential \
libffi-dev \
libjpeg-dev \
libpq-dev \
libssl-dev \
libwebp-dev \
libxml++2.6-dev \
libxslt1-dev \
openssl \
rustc \
zlib1g-dev \
&& rm -rf /var/lib/apt/lists/*
# Copy just what we need to pip install
COPY scripts /synapse/scripts/
COPY MANIFEST.in README.rst setup.py synctl /synapse/
COPY synapse/__init__.py /synapse/synapse/__init__.py
COPY synapse/python_dependencies.py /synapse/synapse/python_dependencies.py
# To speed up rebuilds, install all of the dependencies before we copy over
# the whole synapse project so that we this layer in the Docker cache can be
# used while you develop on the source
#
# This is aiming at installing the `install_requires` and `extras_require` from `setup.py`
RUN pip install --prefix="/install" --no-warn-script-location \
/synapse[all]
# Copy over the rest of the project
COPY synapse /synapse/synapse/
# Install the synapse package itself and all of its children packages.
#
# This is aiming at installing only the `packages=find_packages(...)` from `setup.py
RUN pip install --prefix="/install" --no-deps --no-warn-script-location /synapse
###
### Stage 1: runtime
###
FROM docker.io/python:${PYTHON_VERSION}-slim
RUN 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
VOLUME ["/data"]
EXPOSE 8008/tcp 8009/tcp 8448/tcp
ENTRYPOINT ["/start.py"]
HEALTHCHECK --interval=1m --timeout=5s \
CMD curl -fSs http://localhost:8008/health || exit 1