Developers should learn to love the IPA lite-server

If you’re trying to debug an issue in a plugin then the lite-server is for you. It has a number of advantages:

  • It runs in-tree which means you don’t need to commit, build code, re-install, etc
  • Or worse, avoid directly editing files in /usr/lib/python3.6/*
  • It is very pdb friendly
  • Auto-reloads modified python code
  • It doesn’t run as root

You’ll need two sessions to your IPA master. In one you run the lite-server via:

$ export KRB5CCNAME=~/.ipa/ccache
$ kinit admin
$ make lite-server

In the second we run the client. You’ll need to say which configuration to use:

$ export IPA_CONFDIR=~/.ipa

Now copy the installed configuration there:

$ cp /etc/ipa/default.conf ~/.ipa
$ cp /etc/ipa/ca.crt ~/.ipa

Edit ~/.ipa/default.conf and change the xmlrpc_uri to:

http://localhost:8888/ipa/xml

Now you can run your command locally:

$ kinit admin
$ PYTHONPATH=. python3 ./ipa user-show admin

And if something isn’t working right, stick pdb in ipaserver/plugins/user.py in the show pre_callback¬† command and re-run (notice that the lite-server picks up the change automatically):

$ PYTHONPATH=. python3 ./ipa user-show admin

And in the lite-server session:

> /home/rcrit/redhat/freeipa/ipaserver/plugins/user.py(858)pre_callback()
-> return dn
(Pdb)

 

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