341c42ba83
The pypi-mirror tool is no longer supported by the infra team, or reccomended for installs, and is known to have various bugs that will not be fixed. Remove mentions of it from the docs and point people at devpi-server instead. Change-Id: Ieedb8bf9bee2f5932edac6b9747e645d0f4eb08c
53 lines
2.2 KiB
Markdown
53 lines
2.2 KiB
Markdown
Inject a PyPI mirror
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====================
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Use a custom PyPI mirror to build images. The default is to bind mount one from
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~/.cache/image-create/pypi/mirror into the build environment as mirror URL
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file:///tmp/pypi. The element temporarily overwrites /root/.pip.conf
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and .pydistutils.cfg to use it.
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When online, the official pypi.python.org pypi index is supplied as an
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extra-url, so uncached dependencies will still be available. When offline, only
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the mirror is used - be warned that a stale mirror will cause build failures.
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To disable the pypi.python.org index without using --offline (e.g. when working
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behind a corporate firewall that prohibits pypi.python.org) set
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DIB\_NO\_PYPI\_PIP to any non-empty value.
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To use an arbitrary mirror set PYPI\_MIRROR\_URL=http[s]://somevalue/
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Additional mirrors can be added by exporting PYPI\_MIRROR\_URL\_1=... etc. Only
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the one mirror can be used by easy-install, but since wheels need to be in the
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first mirror to be used, the last listed mirror is used as the pydistutils
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index. NB: The sort order for these variables is a simple string sort - if
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you have more than 9 additional mirrors, some care will be needed.
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A typical use of this element is thus:
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export PYPI\_MIRROR\_URL=http://site/pypi/Ubuntu-13.10
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export PYPI\_MIRROR\_URL\_1=http://site/pypi/
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export PYPI\_MIRROR\_URL\_2=file:///tmp/pypi
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[devpi-server](https://git.openstack.org/cgit/openstack-infra/pypi-mirro://pypi.python.org/pypi/devpi-server)
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can be useful in making a partial PyPI mirror suitable for building images. For
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instance:
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* pip install -U devpi
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* devpi-server quickstart
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* devpi use http://machinename:3141
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* Re-export your variables to point at the new mirror:
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export PYPI\_MIRROR\_URL=http://machinename:3141/
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unset PYPI\__MIRROR\_URL\_1
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unset PYPI\__MIRROR\_URL\_1
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The next time packages are installed, they'll be cached on the local devpi
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server; subsequent runs pointed at the same mirror will use the local cache if
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the upstream can't be contacted.
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Note that this process only has the server running temporarily; see
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[Quickstart: Permanent install on
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server/laptop](http://doc.devpi.net/latest/quickstart-server.html) guide from
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the devpi developers for more information on a more permanent setup.
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