Add error on unitialised variable to the scripts. This way some issues
were identified. Also modify README with fresh variables. The patch
includes:
- Add SWIFT_HASH to the README
- Add XENAPI_CONNECTION_URL to the README
- Add VNCSERVER_PROXYCLIENT_ADDRESS to the README
- Introduce UBUNTU_INST_IFACE which is the OpenStack VM interface used
for the netinstall. It defaults to eth3. Previously this parameter
was set by the combination of HOST_IP_IFACE and the undocumented
NETINSTALL_IP
- get rid of NETINSTALL_IP
- xenrc includes CLEAN_TEMPLATES
- xenrc no longer tries to change directory
- remove chrooting from prepare_guest.sh (STAGING_DIR was always / )
- remove DO_TGZ variable from prepare_guest.sh
- use arguments to call prepare_guest.sh, instead of env vars
- Fix backslash escaping in prepare_guest_template.sh
NOTE: networking is about to be addressed in a separate change.
Related to blueprint xenapi-devstack-cleanup
Change-Id: Ie9a75321c7f41cc9a0cc051398d1e6ec2c88adfa
0b3804bff7