RESTCONF, or NETCONF, may not always be available. Break out and
refactor transport detection/reachability.
NOTE: The shared code paths between wait.py and util.py:wait_boot()
have been refactored as well to reduce code duplication.
Issue #597
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
- Present the topologies to networkx as multigraphs, rather than
expaning each port of the record shape as a separate node.
- Create a topology mapping by locating a subgraph monomorphism of the
logical topology in the physical ditto.
This cuts down the time of finding a mapping by several orders of
magnitude. Example:
Before:
time python3 test/infamy/topology.py \
test/virt/quad/topology.dot.in \
test/infamy/topologies/ring-4-duts.dot >/dev/null
real 13m1,213s
user 13m0,112s
sys 0m0,732s
After:
time python3 test/infamy/topology.py \
test/virt/quad/topology.dot.in \
test/infamy/topologies/ring-4-duts.dot >/dev/null
real 0m0,153s
user 0m0,128s
sys 0m0,024s
When running in the cloud, without KVM emulation, together with many
other tenants, it can take a very long time to boot the instances.
Therefore, add a meta test that will wait for all devices in the
physical topology to come up before exiting. This means that the
actual test cases that follow can assume that devices will answer
NETCONF requests.
Joachim Wiberg