Question: dev/deploy workflow

Hi. I’m looking for some guide/tutorial on using pipenv in development-delivery cycle, currently I’m missing two key points in docs:

1. What is proper way to deploy microservice based on Pipfile[.lock] (i.e., how to build docker container?). My feeling is that during deployment only .lock should be read, as described set of dependencies developed/tested with, but it’s not clear what’s the proper way:
   • sync seems to be appropriate (reads .lock file, installs packages), but doesn’t support --system (addressed in #2227) ­— which is default approach while building containers
   • install --system is ok for installing in container, also support --deploy — is it defferent from sync? Docs says “This will fail a build if the Pipfile.lock is out–of–date” — does it check against PyPI or Pipfile?
   • install --ignore-pipfile — is it the same as sync?
2. What’s the way to use editable installs while developing? Pretty often I develop library and app (using that library) at the same time — to ensure compatibility/ease of interface use/etc. While working with pip I can do one-timer like pip install -e path/to/local/lib, or manage some requirements-dev that’s local for every developer. During dev install we can feed all requirement files, for CI — only libraries from upstream. I’m looking for something similar with pipenv — support for [dev-packages] is perfect in terms of handling priorities during install and locking, but I can’t put there any “per developer”-specific configuration. And afaik, pipenv can not work with multiple Pipfiles.

[txomon]

I just ran into this, and the steps I am doing have the problem that are creating a virtualenv inside the docker, which is not nice, but better than the alternatives

• Copy Pipfile.lock to docker
• Touch Pipfile (Currently regression of #1977)
• Run pipenv sync (Still waiting for #2227, @frostming seems to have it fixed in https://github.com/frostming/pipenv/tree/2010-do-sync)
• All commands to use pipenv run (Waiting for #2227)

In theory the steps should just be:

• Copy Pipfile.lock to docker
• Run pipenv sync --system
• Commands run normally

Using pipenv install --system --ignore-pipfile --deploy

Doesn’t work, and I have no idea how to workaround on it.

Step 7/11 : RUN pipenv install --ignore-pipfile --system --deploy
 ---> Running in 74849d6693e8
Warning: --system is intended to be used for pre-existing Pipfile installation, not installation of specific packages. Aborting.

Using pipenv install --ignore-pipfile --deploy

Doesn’t work,

Step 7/11 : RUN pipenv install --ignore-pipfile --deploy $REQ
 ---> Running in 3cc1ca26caf4
Creating a virtualenv for this project...
Traceback (most recent call last):
  File "/usr/local/bin/pipenv", line 11, in <module>
    sys.exit(cli())
  File "/usr/local/lib/python3.6/site-packages/pipenv/vendor/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/pipenv/vendor/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python3.6/site-packages/pipenv/vendor/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python3.6/site-packages/pipenv/vendor/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.6/site-packages/pipenv/vendor/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/pipenv/cli.py", line 435, in install
    selective_upgrade=selective_upgrade,
  File "/usr/local/lib/python3.6/site-packages/pipenv/core.py", line 1759, in do_install
    pypi_mirror=pypi_mirror,
  File "/usr/local/lib/python3.6/site-packages/pipenv/core.py", line 609, in ensure_project
    three=three, python=python, site_packages=site_packages, pypi_mirror=pypi_mirror
  File "/usr/local/lib/python3.6/site-packages/pipenv/core.py", line 556, in ensure_virtualenv
    do_create_virtualenv(python=python, site_packages=site_packages, pypi_mirror=pypi_mirror)
  File "/usr/local/lib/python3.6/site-packages/pipenv/core.py", line 879, in do_create_virtualenv
    crayons.red(project.pipfile_location, bold=True),
TypeError: __str__ returned non-string (type NoneType)

Using install alone

It will regenerate the lock, which makes no sense. I would rather use a pip freeze output

[butla]

Ok, I’ll try to create a good case for this at some point.