ecs-patterns: Enable load balancer subnet configuration in load balanced constructs

[sonofachamp]

🚀 Feature Request

General Information

• 👋 I may be able to implement this feature request

• ⚠️ This feature might incur a breaking change

Description

Enable consumers of load balanced constructs in ecs-patterns library to specify which VPC subnets to associate to their load balancer.

Proposed Solution

Expose load balancer properties via the load balancer properties interface.

Environment

• CDK CLI Version: 1.3.0 (build bba9914)
• Module Version: ecs-patterns 1.4.0
• OS: all
• Language: all

Other information

#3626

[bgdnlp]

As an easier solution, a parameter that takes a load balancer arn or object as input would allow both using an existing load balancer defined somewhere else (#3737) and simply creating a load balancer with the desired properties just before calling LoadBalancedFargateService() or LoadBalancedEc2Service().

[piradeepk]

Closing this feature request in favour of #3737