Update elasticsearch_dedicated_master_count to 3 in common #522
Description
When the elasticsearch_dedicated_master_count is less than 3, terraform apply commands fail with the error:
Error: Error creating ElasticSearch domain: ValidationException: You must choose at least three dedicated master nodes
on _feature_elasticsearch.tf line 51, in resource "aws_elasticsearch_domain" "elasticsearch":
51: resource "aws_elasticsearch_domain" "elasticsearch" {
Three is the recommended number of master nodes- updating the value in _feature_ekscluster.tf should resolve this issue.
More details: https://docs.aws.amazon.com/elasticsearch-service/latest/developerguide/es-managedomains-dedicatedmasternodes.html