This script shows summary about using "Reserved" and "On-demand" ec2 instances. Namely:
- Which "On-demand" instances haven't got a "Reserved" instance;
- Which "Reserved" instances are unused;
- And which "Reserved" instances are expiring soon.
The script is heavily based on Scott Bigelow's work: https://github.com/epheph/ec2-check-reserved-instances
- Python 2.6+
- argparse (required when using Python 2.6)
- boto3
For the script needs your AWS Security Credentials.
You can specify them in the Boto config (~/.boto or /etc/boto.cfg) or using script command line arguments or by exporting in an environment variables (AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY).
Example:
host# export AWS_ACCESS_KEY_ID=ABCDE
host# export AWS_SECRET_ACCESS_KEY=5ji7haengeeFoh8eziebeu
host# ./check-reserved-instances --region us-west-1 -w 60
Unused reserved instances:
(2) Linux/UNIX m1.small us-west-1c
(3) Linux/UNIX m1.large us-west-1c
Soon expiring (less than 60d) reserved instances:
93bbbca2-d072-4dcc-bb7e-7c137ad565f7 Linux/UNIX m1.small us-west-1c 2014-04-15
bbcd9749-4bf0-440a-bf53-3641e3732b73 Linux/UNIX m1.small us-west-1c 2014-04-03
On-demand instances, which haven't got a reserved instance:
(1) Linux/UNIX m3.medium us-west-1c
(3) Linux/UNIX m1.large us-west-1b
(1) Linux/UNIX m1.medium us-west-1b
Running on-demand instances: 27
Reserved instances: 22
For more help use:
host# check-reserved-instances -h