Support non-centos user in all modules #22
Description
Since default ansible user in xOpera is centos, deploying to non-centos distros can be a bit tricky.
CURENT STATE:
- if deploying to non-centos, username can be specified in some modules (e.g. sodalite.nodes.OpenStack.VM), but some don't have this option and fail. The only workaround is to export OPERA_SSH_USER env var into xOpera's environment (xOpera CI/CD, iac-platform-stack deploy script)
DESIRED STATE:
- using iac-modules with xOpera while targeting non-centos distros can be handled using TOSCA inputs only (without exporting env var before running xOpera)