通过 pip 安装 grpcio 时 Docker 构建时间过长

Question

我有一个 Dockerfile，它通过 pip 安装一些包。 其中一些需要grpcio，构建这部分只需要几分钟。

有人有加快这部分速度的提示吗？

Installing collected packages: python-dateutil, azure-common, azure-nspkg, azure-storage, jmespath, docutils, botocore, s3transfer, boto3, smmap2, gitdb2, GitPython, grpcio, protobuf, googleapis-common-protos, grpc-google-iam-v1, pytz, google-api-core, google-cloud-pubsub
Found existing installation: python-dateutil 2.7.3
  Uninstalling python-dateutil-2.7.3:
    Successfully uninstalled python-dateutil-2.7.3
Running setup.py install for grpcio: started
Running setup.py install for grpcio: still running...
Running setup.py install for grpcio: still running...
Running setup.py install for grpcio: still running...

谢谢。

Answer 1

我也遇到了同样的问题，升级pip解决了：

$ pip3 install --upgrade pip

这里是 grpc 项目的一位维护者的话：

• pip grpcio install is (still) very slow #22815

Answer 2

遇到了同样的问题，通过使用 virtualenv 和多阶段 dockerfile 修复它：

FROM python:3.7-slim as base

# ---- compile image -----------------------------------------------
FROM base AS compile-image
RUN apt-get update \
  && apt-get install -y --no-install-recommends \
  build-essential \
  gcc

RUN python -m venv /app/env
ENV PATH="/app/env/bin:$PATH"

COPY requirements.txt .
RUN pip install --upgrade pip
# pip install is fast here (while slow without the venv) :
RUN pip install -r requirements.txt

# ---- build image -----------------------------------------------
FROM base AS build-image
COPY --from=compile-image /app/env /app/env

# Make sure we use the virtualenv:
ENV PATH="/app/env/bin:$PATH"
COPY . /app
WORKDIR /app

这是我的 requirements.txt ：

fastapi==0.27.*
grpcio-tools==1.21.*
uvicorn==0.7.*