During Bifrost execution this installs the latest virtualbmc[1]. One of the dependencies of this python module is libvirt-python. The 4.1.0 version[2] consumes undeclared variables resulting in the following pip install error.
/usr/bin/pkg-config --atleast-version=1.0.2 libvirt
/usr/bin/python2 generator.py libvirt-lxc /usr/share/libvirt/api/libvirt-lxc-api.xml
Found 3 functions in /usr/share/libvirt/api/libvirt-lxc-api.xml
Found 0 functions in libvirt-lxc-override-api.xml
Generated 1 wrapper functions
running build_py
creating build/lib.linux-x86_64-2.7
copying build/libvirt.py -> build/lib.linux-x86_64-2.7
copying build/libvirt_qemu.py -> build/lib.linux-x86_64-2.7
copying build/libvirt_lxc.py -> build/lib.linux-x86_64-2.7
running build_ext
building 'libvirtmod' extension
creating build/temp.linux-x86_64-2.7
creating build/temp.linux-x86_64-2.7/build
x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -fPIC -I. -I/usr/include/python2.7 -c libvirt-override.c -o build/temp.linux-x86_64-2.7/libvirt-override.o
libvirt-override.c:7746:7: error: ‘VIR_MIGRATE_PARAM_PERSIST_XML’ undeclared here (not in a function)
{ VIR_MIGRATE_PARAM_PERSIST_XML, VIR_TYPED_PARAM_STRING },
^
libvirt-override.c:7751:7: error: ‘VIR_MIGRATE_PARAM_DISKS_PORT’ undeclared here (not in a function)
{ VIR_MIGRATE_PARAM_DISKS_PORT, VIR_TYPED_PARAM_INT },
^
libvirt-override.c:7752:7: error: ‘VIR_MIGRATE_PARAM_COMPRESSION’ undeclared here (not in a function)
{ VIR_MIGRATE_PARAM_COMPRESSION, VIR_TYPED_PARAM_STRING },
^
libvirt-override.c:7753:7: error: ‘VIR_MIGRATE_PARAM_COMPRESSION_MT_LEVEL’ undeclared here (not in a function)
{ VIR_MIGRATE_PARAM_COMPRESSION_MT_LEVEL, VIR_TYPED_PARAM_INT },
^
libvirt-override.c:7754:7: error: ‘VIR_MIGRATE_PARAM_COMPRESSION_MT_THREADS’ undeclared here (not in a function)
{ VIR_MIGRATE_PARAM_COMPRESSION_MT_THREADS, VIR_TYPED_PARAM_INT },
^
libvirt-override.c:7755:7: error: ‘VIR_MIGRATE_PARAM_COMPRESSION_MT_DTHREADS’ undeclared here (not in a function)
{ VIR_MIGRATE_PARAM_COMPRESSION_MT_DTHREADS, VIR_TYPED_PARAM_INT },
^
libvirt-override.c:7756:7: error: ‘VIR_MIGRATE_PARAM_COMPRESSION_XBZRLE_CACHE’ undeclared here (not in a function)
{ VIR_MIGRATE_PARAM_COMPRESSION_XBZRLE_CACHE, VIR_TYPED_PARAM_ULLONG },
^
libvirt-override.c:7757:7: error: ‘VIR_MIGRATE_PARAM_AUTO_CONVERGE_INITIAL’ undeclared here (not in a function)
{ VIR_MIGRATE_PARAM_AUTO_CONVERGE_INITIAL, VIR_TYPED_PARAM_INT },
^
libvirt-override.c:7758:7: error: ‘VIR_MIGRATE_PARAM_AUTO_CONVERGE_INCREMENT’ undeclared here (not in a function)
{ VIR_MIGRATE_PARAM_AUTO_CONVERGE_INCREMENT, VIR_TYPED_PARAM_INT },
^
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
----------------------------------------
Rolling back uninstall of libvirt-python
Command "/usr/bin/python2 -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-ZzN0Jr/libvirt-python/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-3jFAJD-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-ZzN0Jr/libvirt-python/
[1] http://git.openstack.org/cgit/openstack/bifrost/tree/playbooks/roles/bifrost-create-vm-nodes/tasks/prepare_libvirt.yml#n134
[2] https://github.com/libvirt/libvirt-python/releases/tag/v4.1.0
Apparently this only affects Ubuntu systems, more likely this is a consequence of a mismatch of versions between libvirt-python and libvirt0