Route table association issues

[rappal]

Description

If you don't create private subnets, but define the elasticache_subnets without a route table the module drops errors.

Code

https://github.com/terraform-aws-modules/terraform-aws-vpc/blob/master/main.tf#L726 It should use the local.create_elasticache_route_table, because we set the value based on subnets and route table. (create_elasticache_route_table = local.create_elasticache_subnets && var.create_elasticache_subnet_route_table)

• Fix: count = local.create_elasticache_route_table ? local.len_elasticache_subnets : 0

create_elasticache_route_table = local.create_elasticache_subnets && var.create_elasticache_subnet_route_table If var.create_elasticache_subnet_route_table has a false value then you have Elasticache subnets without a route table. The route table association with the original count line:

• count = local.create_elasticache_subnets ? local.len_elasticache_subnets : 0 will return with an error.

Error message

Error: Error in function call on .terraform/modules/vpc/main.tf line 730, in resource "aws_route_table_association" "elasticache": 730: coalescelist( 731: aws_route_table.elasticache[].id, 732: aws_route_table.private[].id, 733: ), ├──────────────── │ while calling coalescelist(vals...) │ aws_route_table.elasticache is empty tuple │ aws_route_table.private is empty tuple

Call to function "coalescelist" failed: no non-null arguments.

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This issue was automatically closed because of stale in 10 days

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