CODEWITHSUNDEEP
python-3.xdjangodockerpackagexmlsec
Dylan Brams
Dylan Brams

Reputation: 2099

Docker: Move LibXMLSec settings / dependencies into executable directory

So. I'm trying to get my Dockerfile to run.

Dockerfile is complicated, and doing things somewhat wrong for Python. The important part, though, is that it was working before I added XMLSec to the dependencies. (via the onelogin [https://github.com/onelogin/python-saml] package)

On our non-Dockerized systems, we run:

apt install -y libxml2-dev libxmlsec1-dev libxmlsec1-openssl pkg-config

and it installs the dependencies. My containerized attempts, however, run into this issue:

  Running setup.py install for xmlsec: started
    Running setup.py install for xmlsec: finished with status 'error'
    Complete output from command /usr/local/bin/python3.6 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-wd6h548m/xmlsec/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-ufxw9hor/install-record.txt --single-version-externally-managed --compile:
    running install
    running build
    running build_py
    package init file 'src/xmlsec/__init__.py' not found (or not a regular file)
    creating build
    creating build/lib.linux-x86_64-3.6
    creating build/lib.linux-x86_64-3.6/xmlsec
    copying src/xmlsec/py.typed -> build/lib.linux-x86_64-3.6/xmlsec
    copying src/xmlsec/constants.pyi -> build/lib.linux-x86_64-3.6/xmlsec
    copying src/xmlsec/template.pyi -> build/lib.linux-x86_64-3.6/xmlsec
    copying src/xmlsec/__init__.pyi -> build/lib.linux-x86_64-3.6/xmlsec
    copying src/xmlsec/tree.pyi -> build/lib.linux-x86_64-3.6/xmlsec
    running build_ext
    error: Unable to invoke pkg-config.

The solution seems to be to use the XMLSec library as a compiled Wheel. (Per something I read in the XMLSec github) I can't find any documentation on how to add this compiled wheel into an executable location within the container via the Dockerfile.

I've done quite a bit of research on this, and can't find sample code or the exact answer. I it may be obvious, but I'm missing core knowledge.

Upvotes: 1

Views: 577

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