vmware_drs_group_manager: Improve error handling

[mariolenz]

SUMMARY

vmware_drs_group_manager raises exceptions instead of calling fail_json().

Additionally, if the DRS group doesn't exist the module fails with 'NoneType' object has no attribute 'vm' or 'NoneType' object has no attribute 'host' which isn't really helpful.

ISSUE TYPE

• Feature Pull Request

COMPONENT NAME

vmware_drs_group_manager

ADDITIONAL INFORMATION

#1415

[softwarefactory-project-zuul]

Build failed.

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[mariolenz]

recheck

[softwarefactory-project-zuul]

Build failed.

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[mariolenz]

recheck

[softwarefactory-project-zuul]

Build failed.

✔️ ansible-tox-linters SUCCESS in 4m 07s
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✔️ ansible-test-sanity-docker-devel SUCCESS in 7m 31s (non-voting)
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✔️ ansible-test-sanity-docker-stable-2.12 SUCCESS in 8m 22s
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[mariolenz]

recheck

[softwarefactory-project-zuul]

Build succeeded.

✔️ ansible-tox-linters SUCCESS in 4m 07s
✔️ build-ansible-collection SUCCESS in 4m 08s
✔️ ansible-test-sanity-docker-devel SUCCESS in 9m 24s (non-voting)
✔️ ansible-test-sanity-docker-milestone SUCCESS in 8m 13s
✔️ ansible-test-sanity-docker-stable-2.12 SUCCESS in 10m 01s
✔️ ansible-test-sanity-docker-stable-2.13 SUCCESS in 8m 43s
✔️ ansible-test-units-community-vmware-python38 SUCCESS in 5m 16s
✔️ ansible-test-cloud-integration-vcenter7_only-stable212 SUCCESS in 18m 08s
✔️ ansible-test-cloud-integration-vcenter7_2esxi-stable212 SUCCESS in 17m 15s
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✔️ ansible-galaxy-importer SUCCESS in 4m 00s

[softwarefactory-project-zuul]

Build succeeded (gate pipeline).

✔️ ansible-tox-linters SUCCESS in 4m 06s
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✔️ ansible-test-sanity-docker-stable-2.13 SUCCESS in 7m 06s
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