allow to set boot diagnostics storage account to managed

[Klaas-]

SUMMARY

Allow to use "managed" for boot diagnostic storage accounts, this means no storage account gets created.
https://learn.microsoft.com/en-us/azure/virtual-machines/boot-diagnostics#enable-managed-boot-diagnostics

Fixes #993

ISSUE TYPE

• Feature Pull Request

COMPONENT NAME

azure_rm_virtualmachine.py

[Fred-sun]

@Klaas- Wouldn't it be nice to add a parameter to boot_diagnistics, such as' type'，

type: managed --- Enabled with managed storag account
type: custome --- Enable with custome storage account

[Klaas-]

I changed the behavior -- there is now an optional argument type: managed - if you set that the storage account will be managed. Anything else will result in the same behavior as before. I would suggest to change the default to managed on the next major release

[Fred-sun]

@Klaas- Please change the following lines accordingly.

azure/plugins/modules/azure_rm_virtualmachine.py

Line 1719 in da4b86c

if self.boot_diagnostics['enabled']:

Update: if self.boot_diagnostics['enabled'] and self.boot_diagnostics.get('type') != 'managed':

azure/plugins/modules/azure_rm_virtualmachine.py

Line 1622 in da4b86c

if self.boot_diagnostics_present and self.boot_diagnostics['enabled']:

Update: if self.boot_diagnostics_present and self.boot_diagnostics['enabled'] and self.boot_diagnostics .get('type') != 'managed':

[xuzhang3]

@Klaas- LGTM 🚢