Avoid dangerous file parsing and object serialization libraries.
yaml.load is the obvious function to use but it is dangerous[1]
Bandit flags yaml.load() as security risk so replace all occurrences
with yaml.safe_load().
[1]https://security.openstack.org/guidelines/dg_avoid-dangerous-input-parsing-libraries.html
Story: 1634265
Task: 38963
Change-Id: Ie5baf64696e6214e3dd01f6e06ede8fd8432cbb8
The patch adds a new unit test for profile feature.
The patch also converts all overrides values read from
profile.yaml to string as this is the data type of overrides.
Change-Id: I795b9b900b6274e689ba64b9721fb63e49696dea
The patch implements --profile argument, which defines a path to
a profile.yaml file - a file which contains python-tempestconf
arguments and their values.
Also --generate-profile argument is introduced. A user can generate
a sample profile.yaml file using this argument. The sample contains
definitions of all python-tempestconf arguments set to their default
values.
Story: 2004503
Task: 28225
Change-Id: I80848d8ef9868ed3975b938d61880753eadc5ae9
