AWS Billing: Set an alarm to a cost threshold

Knowing about some details about the costs inside aws and some of the services (especially, that Docker, VPNs and Kubernetes are not included in the free trials)

• What services are free of charge? How to control your costs... (Part 1)
• Part (2)
• Part (3)

i set an alarm on my account, to get informed about new costs:

So move to "Cloudwatch" and there you have to choose "Alarms":

 Then "Create Alarm":

 And click on "select metric":

 Inside "select metric" click on "Billing" (at the bottom):

And select "Total Estimated Charge"

Select the Checkbox for USD and then "Select metric"

 After that you have to specify an exceed and an e-mail address:

 

If this is your first alarm you have to verify your e-mail:

 And if the confirmation is done, you will get:

Now the Dashboard shows:

And i got an e-mail with this alarm: