[Azure] Cross resource group nodes

[feiskyer]

Feature Description

• One-line feature description (can be used as a release note): Add support of cross resource group nodes.
• Primary contact (assignee): @feiskyer
• Responsible SIGs: sig-azure
• Design proposal link (community repo): Add proposal of cross resource group nodes for Azure community#2479
• KEP: 20180809-cross-resource-group-nodes
• Link to e2e and/or unit tests:
• Reviewer(s) - (for LGTM) recommend having 2+ reviewers (at least one from code-area OWNERS file) agreed to review. Reviewers from multiple companies preferred: @khenidak
• Approver (likely from SIG/area to which feature belongs): @brendandburns
• Feature target (which target equals to which milestone):
  • Alpha release target (1.12)
  • Beta release target (1.15)
  • Stable release target (x.y)

[feiskyer]

/sig azure
/milestone v1.12

[feiskyer]

/kind feature
/stage alpha

[kacole2]

@feiskyer thank you. this has been added to the 1.12 Feature Tracking sheet. Please keep the post updated with links to PRs and design docs proposals.

[feiskyer]

Community PR created kubernetes/community#2479

[zparnold]

Hey there! @feiskyer I'm the wrangler for the Docs this release. Is there any chance I could have you open up a docs PR against the release-1.12 branch as a placeholder? That gives us more confidence in the feature shipping in this release and gives me something to work with when we start doing reviews/edits. Thanks! If this feature does not require docs, could you please update the features tracking spreadsheet to reflect it?