IPv6 support

[askfongjojo]

A number of places in the console may need modifications for IPv6 address input/display:

• IP Pool | Add IP range
  • remove comment (and any validation) around allowing IPv4 range only
• Floating IP | Create Floating IP
  • add IP version radio button to select the appropriate default pool
  • alternatively, user can be prompted to select a specific pool under Advanced if the silo has both default v4 and v6 pools
• VPC subnet | Create Subnet
  • allow IPv6-only subnet? (currently v4 is mandatory, v6 is optional)
• Instance | Networking | Network Interfaces (grid)
  • display also v6 IP and Transit IPs if they are not null
• Instance | Networking | Add Network Interface
  • have two separate IP address input for specific v4 and v6 addresses (currently there is one input field)
• Instance | Networking | Edit Network Interface
  • have two separate Transit IP address input fields for v4 and v6 addresses (currently there is one)

Before making child tickets for these items, it'll be good for @bnaecker to confirm what is necessary vs nice-to-have vs N/A.

[linear]

PRD-245

[bnaecker]

allow IPv6-only subnet? (currently v4 is mandatory, v6 is optional)

"Optional" here means we'll automatically create an IPv6 block for you, not that you can create a VPC Subnet without an IPv6 subnet. All VPC Subnets have both today.

[askfongjojo]

Updated ticket description to drop the Create Subnet line item. Where both types of IP addresses are present, the current method of showing them in the same cell should be fine