elasticloadbalancingv2: specify private IPv4 address for internal NLB

[badmintoncryer]

Describe the feature

We can set static private IPv4 address for internal NLB.

Use Case

NLB supports for specifying private IPv4 address from SubnetMapping property.

However, L2 construct cannot configure it.

Proposed Solution

Add staticIpv4 boolean property to NetworkLoadBalancerProps and set PrivateIpv4Address in the SubnetMappings.

const lb = new elbv2.NetworkLoadBalancer(this, 'LB', {
  vpc,
  internetFacing: false, // only for internal NLB
  staticIpv4: true // add
});

Other Information

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

CDK version used

2.141.0

Environment details (OS name and version, etc.)

irrelevant

[khushail]

Hi @badmintoncryer , thanks for reaching out. I see there is somewhat similar Feature request in the past for addition of SubnetMapping property and here is a suggested alternate for doing so. Please feel free to submit a PR. Thanks!