wheelhouse requires pinning of importlib_metadata

[Corey Bryant]

install hook fails with:

2021-10-27 00:39:23 DEBUG install Collecting importlib_metadata>=1.7.0 (from debtcollector==2.3.0)
2021-10-27 00:39:23 WARNING install Could not find a version that satisfies the requirement importlib_metadata>=1.7.0 (from debtcollector==2.3.0) (from versions: )
2021-10-27 00:39:23 WARNING install No matching distribution found for importlib_metadata>=1.7.0 (from debtcollector==2.3.0)
2021-10-27 00:39:23 WARNING install Traceback (most recent call last):
2021-10-27 00:39:23 WARNING install File "/var/lib/juju/agents/unit-neutron-api-plugin-ovn-2/charm/hooks/install", line 8, in <module>
2021-10-27 00:39:23 WARNING install basic.bootstrap_charm_deps()
2021-10-27 00:39:23 WARNING install File "lib/charms/layer/basic.py", line 214, in bootstrap_charm_deps
2021-10-27 00:39:23 WARNING install env=_get_subprocess_env())
2021-10-27 00:39:23 WARNING install File "/usr/lib/python3.6/subprocess.py", line 311, in check_call
2021-10-27 00:39:23 WARNING install raise CalledProcessError(retcode, cmd)
2021-10-27 00:39:23 WARNING install subprocess.CalledProcessError: Command '['/var/lib/juju/agents/unit-neutron-api-plugin-ovn-2/.venv/bin/pip', 'install', '-U', '--force-reinstall', '--no-index', '--no-cache-dir', '-f', 'wheelhouse', 'wheel==0.33.6', 'idna==3.3', 'charmhelpers==0.20.24.dev2', 'MarkupSafe==1.1.1', 'requests==2.26.0', 'six==1.16.0', 'charms.openstack==0.0.1.dev1', 'charms.reactive==1.4.1', 'urllib3==1.26.7', 'PyYAML==5.2', 'pyaml==21.10.1', 'rfc3986==1.5.0', 'dnspython==1.16.0', 'certifi==2021.10.8', 'netaddr==0.7.19', 'wrapt==1.13.2', 'debtcollector==2.3.0', 'stevedore==3.5.0', 'psutil==5.8.0', 'Jinja2==2.10.1', 'pbr==5.6.0', 'charset-normalizer==2.0.7', 'oslo.config==8.7.1', 'oslo.i18n==5.1.0', 'Tempita==0.4', 'zipp==1.2.0', 'netifaces==0.11.0']' returned non-zero exit status 1.
2021-10-27 00:39:23 ERROR juju.worker.uniter.operation runhook.go:139 hook "install" (via explicit, bespoke hook script) failed: exit status 1

Running command manually:

ubuntu@juju-a71d84-zaza-ebd19147c228-2:/var/lib/juju/agents/unit-neutron-api-plugin-ovn-0/charm$ sudo /var/lib/juju/agents/unit-neutron-api-plugin-ovn-0/.venv/bin/pip install -U --force-reinstall --no-index --no-cache-dir -f wheelhouse wheel==0.33.6 dnspython==1.16.0 PyYAML==5.2 debtcollector==2.3.0 idna==3.3 Tempita==0.4 charset-normalizer==2.0.7 urllib3==1.26.7 rfc3986==1.5.0 oslo.i18n==5.1.0 charms.reactive==1.4.1 charms.openstack==0.0.1.dev1 stevedore==3.5.0 MarkupSafe==1.1.1 oslo.config==8.7.1 psutil==5.8.0 wrapt==1.13.2 Jinja2==2.10.1 netaddr==0.7.19 requests==2.26.0 certifi==2021.10.8 netifaces==0.11.0 charmhelpers==0.20.24.dev2 zipp==1.2.0 pbr==5.6.0 six==1.16.0 pyaml==21.10.1
Looking in links: wheelhouse
Collecting wheel==0.33.6
Collecting dnspython==1.16.0
Collecting PyYAML==5.2
Collecting debtcollector==2.3.0
Collecting idna==3.3
Collecting Tempita==0.4
Collecting charset-normalizer==2.0.7
Collecting urllib3==1.26.7
Collecting rfc3986==1.5.0
Collecting oslo.i18n==5.1.0
Collecting charms.reactive==1.4.1
Collecting charms.openstack==0.0.1.dev1
Collecting stevedore==3.5.0
Collecting MarkupSafe==1.1.1
Collecting oslo.config==8.7.1
Collecting psutil==5.8.0
Collecting wrapt==1.13.2
Collecting Jinja2==2.10.1
Collecting netaddr==0.7.19
Collecting requests==2.26.0
Collecting certifi==2021.10.8
Collecting netifaces==0.11.0
Collecting charmhelpers==0.20.24.dev2
Collecting zipp==1.2.0
  Installing build dependencies ... done
Collecting pbr==5.6.0
Collecting six==1.16.0
Collecting pyaml==21.10.1
Collecting importlib_metadata>=1.7.0 (from debtcollector==2.3.0)
  Could not find a version that satisfies the requirement importlib_metadata>=1.7.0 (from debtcollector==2.3.0) (from versions: )
No matching distribution found for importlib_metadata>=1.7.0 (from debtcollector==2.3.0)

[Corey Bryant (corey.bryant)]

This is a conflict with importlib_metadata and setuptools [1]. The wheelhouse has setuptools 41.6.0 and the last version of importlib_metadata to support <= setuptools 42 is v3.1.0:

https://github.com/python/importlib_metadata/blob/v3.1.0/pyproject.toml

[1]
ubuntu@juju-c22dda-zaza-be92e42daf69-2:/var/lib/juju/agents/unit-neutron-api-plugin-ovn-0/charm/wheelhouse$ ls
Jinja2-2.10.1.tar.gz
MarkupSafe-1.1.1.tar.gz
PyYAML-5.2.tar.gz
Tempita-0.4.tar.gz
certifi-2021.10.8.tar.gz
charmhelpers-0.20.24.dev2.zip
charms.openstack-0.0.1.dev1.zip
charms.reactive-1.4.1.tar.gz
charset-normalizer-2.0.7.tar.gz
debtcollector-2.3.0.tar.gz
dnspython-1.16.0.zip
idna-3.3.tar.gz
importlib_metadata-3.1.0.tar.gz
netaddr-0.7.19.tar.gz
netifaces-0.11.0.tar.gz
oslo.config-8.7.1.tar.gz
oslo.i18n-5.1.0.tar.gz
pbr-5.6.0.tar.gz
pip-18.1.tar.gz
psutil-5.8.0.tar.gz
pyaml-21.10.1.tar.gz
requests-2.26.0.tar.gz
rfc3986-1.5.0.tar.gz
setuptools-41.6.0.zip
setuptools_scm-1.17.0.tar.gz
six-1.16.0.tar.gz
stevedore-3.5.0.tar.gz
urllib3-1.26.7.tar.gz
wheel-0.33.6.tar.gz
wrapt-1.13.2.tar.gz
zipp-1.2.0.tar.gz

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/charm-neutron-api-plugin-ovn/+/815716

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/charm-neutron-api-plugin-ovn/+/815716
Committed: https://opendev.org/openstack/charm-neutron-api-plugin-ovn/commit/68e9c7586a8630a0d5f23798ac164f33371d2677
Submitter: "Zuul (22348)"
Branch: master

commit 68e9c7586a8630a0d5f23798ac164f33371d2677
Author: Corey Bryant <email address hidden>
Date: Wed Oct 27 18:22:11 2021 +0000

    Pin importlib_metadata in wheelhouse

    This fixes an install hook failure caused by a conflict
    between setuptools 41.6.0 and importlib_metadata by pinning
    importlib_metadata to the last version that supported that
    version of setuptools.

    Closes-Bug: #1948967
    Change-Id: Ic8376be8f1ef157dbfa13bd34ba51389cc472bb9