User Story:

As a (user persona), I want to be able to:

• Support both IPv4 and IPv6 CIDRs for VNets

so that I can achieve

• Dual stack networking support on Azure

Acceptance Criteria:

Description of criteria:

• VNet support for IPv4 and IPv6 CIDRs

Engineering Details:

• CIDR is parsed here: https://github.com/openshift/installer/blob/0ed55cf610c7b8812ccfebd51350e31ae43e8259/pkg/asset/manifests/azure/cluster.go#L27
• It is assumed to be a single CIDR
• The security group, vnet, and subnets created in this file will all need to be updated to support multiple CIDRs