Support IPv6 on Hetzner

[0x221A]

Feature Request

Afterburn currently supports only IPv4 for Hetzner. IPv6 metadata can be retrieved from Hetzner's API endpoints (/hetzner/v1/metadata or /hetzner/v1/metadata/network-config) in the network-config.config[0].subnets[n] property, where ipv6 is set to true.

Environment

Hetzner

Desired Feature

Enable Afterburn to configure IPv6 automatically on server startup.

Other Information

• If no public network is configured, the config property in network-config will be an empty array.
• An example value of the network-config field is shown below.

network-config:
  config:
  - mac_address: <redacted>
    name: eth0
    subnets:
    - ipv4: true
      type: dhcp
    - address: 2a01:<redacted>::1/64
      dns_nameservers:
      - 2a01:4ff:ff00::add:1
      - 2a01:4ff:ff00::add:2
      gateway: fe80::1
      ipv6: true
      type: static
    type: physical
  version: 1