img-mgr except with terraform and runway

this is img-mgr except with terraform and runway

tfvars

i am choosing not to gitignore the tfvars files because runway needs them and there's really nothing sensitive in there anyway

cloudfront alias

• itsalwaysdns.tf will create an alias DNS record in route53 and an SSL certificate in ACM to be used by cloudfront
• main.tf will conditionally configure cloudfront to use that alias as long as you have the cf_alias variable set

currently, these two modules kinda rely on each other. itsalwaysdns.tf relies on outputs from main.tf, but main.tf needs the resources to already be created. i guess i could do them in the same module, but i wanted to keep the dns stuff optional.

you also need to have a hosted zone in route53 already. itsalwaysdns.tf creates the record for you, but it expects the zone to exist already (specified as hosted_zone).

NOTE: changing the domain name

if you want to change the domain name, you need to deploy main.tf with the cf_alias variable unset. if you just try to deploy itsalwaysdns.tf with a new domain, it will hang on trying to delete the previous certificate (which is still being used by cloudfront).

alt deployments

vpc_alt.tf and imgmgr_alt.tf utilize various terraform aws modules instead of the default aws provider resources. the end result is mostly the same, but without a cloudfront distribution and asg scaling policies / alarms.

needless to say, they should not be deployed in the same place as the original vpc.tf and imgmgr.tf. they're also not compatible with itsalwaysdns.tf because there's no cloudfront involved.