Hello,

We have an ongoing project for which we had created some yaml templates about a year or so ago to create a cluster, service, and push a docker image to the ecr. We had to backtrack and work on other parts of the project, but at the time we did the testing, our yaml templates were working and our script files were running the templates and creating the cluster and service properly.

We recently went back to test the templates and try to create our cluster and services, but are getting a new error. One of the templates attempts to create a network load balancer in the us-west-1 zone. The error returned by amazon is:

"The following Availability Zones us-west-1a cannot be associated with a load balancer. Please try a different Availability Zone. (Service: AmazonElasticLoadBalancing; Status Code: 400; Error Code: ValidationError;"

This is the section in my Yaml that has the network load balancer, which has previously worked.

An internal load balancer, this would be used for a service that is not

directly accessible to the public, but instead should only receive traffic

from your other services.

PublicLoadBalancer: Type: AWS::ElasticLoadBalancingV2::LoadBalancer Properties: Name: 'grpc-public-small' Subnets: - !Ref PublicSubnetOne - !Ref PublicSubnetTwo Tags: - Key: Name Value: grpc-public-small Type: network LoadBalancerAttributes: - Key: load_balancing.cross_zone.enabled Value: 'true'

Please assist in how to fix this. Thank you very much.

Mary