Manual release for IAM updates

v19.5.3

[skip ci]

Multiple changes to allow 3rd party use

Incorporates:

• #47
• #48
• #44

Userdata module `efs_mount_directory` -> `mount_directory`

Make it clear that mount_directory can refer to either ebs or efs.

Adds ARN as output to SNS module.

v6.4.2

Re-add ARN to SNS module. (#46)

Make the environment variables length a static variable

Work around a bug where Terraform can't count.

See hashicorp/terraform#10857

Service now requires an env_vars_length param:

module "service" {
  // ...
  env_vars_length = 2
  env_vars = {
    my_var = "foo"
    another_var = "bar"
  }
}

Services use environment variables for config

Old versions of the service module would render a config template with variables you provided, and then store the rendered template somewhere in S3 – then applications would have to implement their own logic for fetching and parsing that file.

This had the side effect that all applications had complete read access to your S3 buckets, which is potentially undesirable.

The new version of the service module passes config as environment variables instead.

Add is_config_managed variable to sqs_autoscaling_service

v3.0.5

add is_config_managed variable to sqs_autoscaling_service

Add default config_vars for sqs_autoscaling_service

sqs_autoscaling_service can now omit config_vars as per the service module.

Add extra vars to sqs_autoscaling_service

In order to pass env variables to the underlying service.

Fix for broken sqs_autoscaling_service referring to wrong module

v3.0.2

Fix for broken sqs_autoscaling_service referring to wrong module