Import existing Ec2 Instances into DynamicDNS

[cho00013]

@badra001 would like to be able to import existing accounts and their EC2 so that DynamicDNS code will create the necessary objects (DynamoDB item, Route53 records).

Just discovered a need to import. I want to apply this to EDL, both in east and west. It has a lot of DNS entries already. A, TXT and PTR. But not exactly the same TXT.

I'd like to "turn on" this in a region, and then run something to read all the EC2 (by vpc) and show what it would do (what DNS entry) and then add them. Or, trigger something to reload with what is there (without a shutdown/startup).

On the import thing. Here is the scenario:

1. no dynr53 setup
2. many instances already in infoblox dns
3. want to run through the instances in place and make it look like they got "started" to force the dynr53 to add to ddb and add to route53
4. was thinking of an sns message that a/the lambda handles (emulating the "running" instance or "stopping" instance)
5. was also thinking that the code to "add an instance to dns" and "remove an instance from dns" should be separate functions, and the lambda handler primarily dispatches
6. also was looking over ec2 tag changes as well which, if any were our dns-related tags (boc:dns:.* or Name) it would remove and add from dns (and ddb)