ec2: render network on all NICs and add secondary IPs as static (#114)

Add support for rendering secondary static IPv4/IPv6 addresses on
any NIC attached to the machine. In order to see secondary IP
addresses in Ec2 IMDS network config, cloud-init now reads metadata
version 2018-09-24. Metadata services which do not support the Ec2
API version will not get secondary IP addresses configured.

In order to discover secondary IP address config, cloud-init now
relies on metadata API Parse local-ipv4s, ipv6s,
subnet-ipv4-cidr-block and subnet-ipv6-cidr-block metadata keys to
determine additional IPs and appropriate subnet prefix to set for a
nic.

Also add the datasource config option apply_full_imds_netork_config
which defaults to true to allow cloud-init to automatically configure
secondary IP addresses. Setting this option to false will tell
cloud-init to avoid setting up secondary IP addresses.

Also in this branch:
 - Shift Ec2 datasource to emit network config v2 instead of v1.

LP: #1866930

0 files changed, 0 insertions, 0 deletions