当 pip 要求中包含雪花依赖项时，docker build 失败

Question

我正在尝试从我的 python 应用程序中构建 docker 图像。但是当我将“snowflake-connector-python”添加到 pip requirements.txt 文件时，docker build 失败了。

要求.txt：-

boto3
pycryptodome
snowflake-connector-python

Dockerfile:-

FROM python:alpine3.6
RUN python --version

COPY . /sample-app
WORKDIR /sample-app

RUN python -m pip install --upgrade pip
RUN pip install --upgrade setuptools
RUN pip --version
RUN pip install -r requirements.txt

CMD [ "python", "runner.py" ]

CLI docker 构建：-

docker build -t sample-app:1.0 .

错误 ：-

Step 8/9 : RUN pip install -r requirements.txt
 ---> Running in 13ab5873e0b5
Collecting boto3 (from -r requirements.txt (line 1))
  Downloading https://files.pythonhosted.org/packages/92/37/bcd816851f8a04de7d2ba9df5893acc4c6680fb3ab4442895490724143fb/boto3-1.7.67-py2.py3-none-any.whl (128kB)
Collecting pycryptodome (from -r requirements.txt (line 2))
  Downloading https://files.pythonhosted.org/packages/96/15/a2a2aa89f57a17075579fcd296a0fcff98640776666a4371d33f7f613bb9/pycryptodome-3.6.4.tar.gz (7.1MB)
Collecting snowflake-connector-python (from -r requirements.txt (line 3))
  Downloading https://files.pythonhosted.org/packages/66/df/e44ec4d55fce341c9756f5f6012049b85f6a679fc3a423eefd7f66527a46/snowflake_connector_python-1.6.5-py2.py3-none-any.whl (142kB)
Collecting jmespath<1.0.0,>=0.7.1 (from boto3->-r requirements.txt (line 1))
  Downloading https://files.pythonhosted.org/packages/b7/31/05c8d001f7f87f0f07289a5fc0fc3832e9a57f2dbd4d3b0fee70e0d51365/jmespath-0.9.3-py2.py3-none-any.whl
Collecting botocore<1.11.0,>=1.10.67 (from boto3->-r requirements.txt (line 1))
  Downloading https://files.pythonhosted.org/packages/d6/81/59f34f9965277be8e480efea09b949e406b1afbfcf29a87c6ae6c2b52121/botocore-1.10.67-py2.py3-none-any.whl (4.4MB)
Collecting s3transfer<0.2.0,>=0.1.10 (from boto3->-r requirements.txt (line 1))
  Downloading https://files.pythonhosted.org/packages/d7/14/2a0004d487464d120c9fb85313a75cd3d71a7506955be458eebfe19a6b1d/s3transfer-0.1.13-py2.py3-none-any.whl (59kB)
Collecting pyjwt (from snowflake-connector-python->-r requirements.txt (line 3))
  Downloading https://files.pythonhosted.org/packages/93/d1/3378cc8184a6524dc92993090ee8b4c03847c567e298305d6cf86987e005/PyJWT-1.6.4-py2.py3-none-any.whl
Collecting pyasn1<0.5.0,>=0.2.1 (from snowflake-connector-python->-r requirements.txt (line 3))
  Downloading https://files.pythonhosted.org/packages/d1/a1/7790cc85db38daa874f6a2e6308131b9953feb1367f2ae2d1123bb93a9f5/pyasn1-0.4.4-py2.py3-none-any.whl (72kB)
Collecting six (from snowflake-connector-python->-r requirements.txt (line 3))
  Downloading https://files.pythonhosted.org/packages/67/4b/141a581104b1f6397bfa78ac9d43d8ad29a7ca43ea90a2d863fe3056e86a/six-1.11.0-py2.py3-none-any.whl
Collecting pyOpenSSL<18.0.0,>=16.2.0 (from snowflake-connector-python->-r requirements.txt (line 3))
  Downloading https://files.pythonhosted.org/packages/79/db/7c0cfe4aa8341a5fab4638952520d8db6ab85ff84505e12c00ea311c3516/pyOpenSSL-17.5.0-py2.py3-none-any.whl (53kB)
Collecting cryptography<2.3,>=1.8.2 (from snowflake-connector-python->-r requirements.txt (line 3))
  Downloading https://files.pythonhosted.org/packages/ec/b2/faa78c1ab928d2b2c634c8b41ff1181f0abdd9adf9193211bd606ffa57e2/cryptography-2.2.2.tar.gz (443kB)
Collecting azure-storage<=0.36.0,>0.34.2 (from snowflake-connector-python->-r requirements.txt (line 3))
  Downloading https://files.pythonhosted.org/packages/76/26/482c033f8f3a48d16cf75aad91c3e1256856719f4117fabb4696d33aa5da/azure_storage-0.36.0-py2.py3-none-any.whl (190kB)
Collecting azure-common<2 (from snowflake-connector-python->-r requirements.txt (line 3))
  Downloading https://files.pythonhosted.org/packages/91/66/6636001c0b6be5423f4bbaffe5febbf9eda39bd1941eb39a73504d8f6f71/azure_common-1.1.14-py2.py3-none-any.whl
Collecting ijson (from snowflake-connector-python->-r requirements.txt (line 3))
  Downloading https://files.pythonhosted.org/packages/7f/e9/8508c5f4987ba238a2b169e582c1f70a47272b22a2f1fb06b9318201bb9e/ijson-2.3-py2.py3-none-any.whl
Collecting cffi>=1.9 (from snowflake-connector-python->-r requirements.txt (line 3))
  Downloading https://files.pythonhosted.org/packages/e7/a7/4cd50e57cc6f436f1cc3a7e8fa700ff9b8b4d471620629074913e3735fb2/cffi-1.11.5.tar.gz (438kB)
    Complete output from command python setup.py egg_info:

        No working compiler found, or bogus compiler options passed to
        the compiler from Python's standard "distutils" module.  See
        the error messages above.  Likely, the problem is not related
        to CFFI but generic to the setup.py of any Python package that
        tries to compile C code.  (Hints: on OS/X 10.8, for errors about
        -mno-fused-madd see http://stackoverflow.com/questions/22313407/
        Otherwise, see https://wiki.python.org/moin/CompLangPython or
        the IRC channel #python on irc.freenode.net.)

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-7dudc372/cffi/
The command '/bin/sh -c pip install -r requirements.txt' returned a non-zero code: 1

可能是什么问题 ？我在这里错过了什么吗？

https://docs.snowflake.net/manuals/user-guide/python-connector-install.html

Answer 1

alpine linux 非常小，他们必须删除所有内容，因此您必须自己安装。一些 pip 包需要在您的机器上编译/构建，但 alpine 缺少这些依赖项，因此请安装它们，然后进行 pip 安装，然后删除它们，因为不再需要它们，您将减小图像大小。

雪花文档还说你必须安装libffi-dev和openssl-dev

FROM python:alpine3.6

COPY . /sample-app
WORKDIR /sample-app

RUN apk add --update --no-cache --virtual build-deps gcc python3-dev musl-dev libc-dev linux-headers libxslt-dev libxml2-dev \
&& apk add libffi-dev openssl-dev \
&& pip install --upgrade pip setuptools \
&& pip install -r requirements.txt \
&& apk del build-deps

CMD [ "python", "runner.py" ]