通过HTML / Python / Bash脚本停止AWS EC2实例

Question

Is there any way to send a button/hyperlink in an email through HTML which will trigger a Python/Bash Script which will stop a running EC2 instance ?

I am basically going through all running instances, checking their uptime through Fabric -> SSH and then sending a mail when the uptime has been beyond a specified limit.

If it is not possible through a script, is there a specific hyperlink for every instance which triggers its stopping ?

PS: I know about Amazon CloudWatch but am searching for an alternative since I would have to create an alarm for every instance manually through cloudwatch.

PS-2: I don't require the whole code. Any help in this direction will be appreciated.
Example : What frameworks can be used ? etc.

Answer 1

For handling amazon instances you probably want to use boto which provides most of the common needed functionality. It is very important to read the documentation since data loss is a possibility. Consider starting here .

To figure out how long the instance was running you can use instance.launch_time .

To stop an instance you can use instance.stop :

Stops an Amazon EBS-backed instance. Each time you transition an instance from stopped to started, Amazon EC2 charges a full instance hour, even if transitions happen multiple times within a single hour.

You can't start or stop Spot Instances. (more in link...)

To terminate an instance use instance.terminate :

Shuts down one or more instances. This operation is idempotent; if you terminate an instance more than once, each call succeeds.

By default, Amazon EC2 deletes all EBS volumes that were attached when the instance launched. Volumes attached after instance launch continue running.