Add EFS to ECS (#113)

* Initial EFS-to-ECS commit

* Add missing policy

* Adding missing block to container defn and flags

* Adding aws_ecs_container_user

* Add dependency

* Add missing role variables

* Fixing aws_variables and README

* Cleanup aws_ecs

* Add EFS-specific ECS policy

* Adding EFS to ECS

* Add EFS-ECS SG Rule

* Fix EFS FS ID incoming to ECS

* Add EFS module dependency

Bugfix certificate and URL Output issue (#112)

* Fix vm_url_first_nonempty
* Fixing vm_url conditional
* Rollback aws_acm_certificates each.value
* Format fix

Minor terraform format fix

Add docker backup cleanup (#110)

* Add docker_backup_retention - Set number of backups to keep.

Add-ECR-registry-external-account-read-write (#107)

* add-ecr-registry-external-account-read-write

Add-ECR-registry-external-account-read-write (#107)

* add-ecr-registry-external-account-read-write

Fix ECS apex redirects (#106)

* fix-ecs-apex-redirect

* rollback alb lb

* bumping conditionals

fix-make-ecs-apex-rule-root-domain-dependant (#105)

null for monitoring_role_arn when interval is 0 (#102)

* null for monitoring_role_arn when interval is 0
* Adding monitoring role creation
* Fixing conditional

Enhanced monitoring for RDS (#101)

* Adding Enhanced monitoring
* Use default ARN for monitoring if none defined