fix duplicate tag exception as CloudRuntimeException

[DaanHoogland]

Description

see #3339: a runtime exception is thrown but it should be converted to an error return. Wrapping it in a CloudRuntimeException should do the trick.

Fixes: #3339

Types of changes

• Breaking change (fix or feature that would cause existing functionality to change)
• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Enhancement (improves an existing feature and functionality)
• Cleanup (Code refactoring and cleanup, that may add test cases)

Screenshots (if appropriate):

How Has This Been Tested?

by ui

also a marvin test was added in component test test_tags.py

[DaanHoogland]

@blueorangutan package

[yadvr]

@blueorangutan package

[blueorangutan]

@rhtyd a Jenkins job has been kicked to build packages. I'll keep you posted as I make progress.

[blueorangutan]

Packaging result: ✔centos6 ✔centos7 ✔debian. JID-2783

[yadvr]

@blueorangutan test

[blueorangutan]

@rhtyd a Trillian-Jenkins test job (centos7 mgmt + kvm-centos7) has been kicked to run smoke tests

[blueorangutan]

Trillian test result (tid-3582)
Environment: kvm-centos7 (x2), Advanced Networking with Mgmt server 7
Total time taken: 32775 seconds
Marvin logs: https://github.com/blueorangutan/acs-prs/releases/download/trillian/pr3348-t3582-kvm-centos7.zip
Intermittent failure detected: /marvin/tests/smoke/test_vpc_redundant.py
Smoke tests completed. 67 look OK, 1 have error(s)
Only failed tests results shown below:

Test	Result	Time (s)	Test File
test_05_rvpc_multi_tiers	Failure	408.28	test_vpc_redundant.py
test_05_rvpc_multi_tiers	Error	431.09	test_vpc_redundant.py

[anuragaw]

lgtm