Parameter store references are statically typed

[aidenvaines-cgi]

Under EM-822 we are looking to put an alarm on certificate expiry and we noticed the SSM parameters are statically typed.
`data "aws_ssm_parameter" "ca_cert" {
name = "/${local.name}/mesh/MESH_CA_CERT"
}

moved {
from = aws_ssm_parameter.ca_cert
to = data.aws_ssm_parameter.ca_cert
}`

These data resources are statically typed and are expecting the user of this module to have created the parameters with that exact name which could be undesired or dangerous. This should probably be a variable in the module the user is expected to declare, perhaps this mechanism could be fallback or default logic?

[jamesyoung35-nhs]

Ran into this exact issue of PDM. Would be helpful if these were variables.