Created
July 25, 2012 18:31
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Create a StatusCheckFailed alarm
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| import boto.ec2.cloudwatch | |
| import sys | |
| import os | |
| AWS_KEY = os.environ.get("AWS_ACCESS_KEY_ID") | |
| AWS_SECRET = os.environ.get("AWS_SECRET_ACCESS_KEY") | |
| AWS_REGION = os.environ.get("AWS_EC2_REGION", "us-east-1") | |
| TOPIC = 'YOUR_TOPIC' | |
| def create_status_alarm(instance_id): | |
| ec2_conn = boto.ec2.connect_to_region(AWS_REGION, | |
| aws_access_key_id=AWS_KEY, | |
| aws_secret_access_key=AWS_SECRET) | |
| cloudwatch_conn = boto.ec2.cloudwatch.connect_to_region( | |
| AWS_REGION, | |
| aws_access_key_id=AWS_KEY, | |
| aws_secret_access_key=AWS_SECRET) | |
| reservations = ec2_conn.get_all_instances(filters = {'instance-id': instance_id}) | |
| if reservations and reservations[0].instances: | |
| instance = reservations[0].instances[0] | |
| instance_name = instance.tags['Name'] | |
| else: | |
| print "Invalid instance-id!" | |
| sys.exit(1) | |
| alarm = boto.ec2.cloudwatch.alarm.MetricAlarm( | |
| connection = cloudwatch_conn, | |
| name = instance_name + "-status-alarm", | |
| metric = 'StatusCheckFailed', | |
| namespace = 'AWS/EC2', | |
| statistic = 'Maximum', | |
| comparison = '>=', | |
| description = 'status check for %s %s' % (instance_id, instance_name), | |
| threshold = 1.0, | |
| period = 60, | |
| evaluation_periods = 2, | |
| dimensions = {'InstanceId':instance_id}, | |
| alarm_actions = [TOPIC], | |
| ok_actions = [TOPIC], | |
| insufficient_data_actions = [TOPIC]) | |
| cloudwatch_conn.put_metric_alarm(alarm) | |
| if __name__ == '__main__': | |
| if len(sys.argv) < 2: | |
| print "Usage: create_status_alarm.py <instanceid>" | |
| sys.exit(2) | |
| create_status_alarm(sys.argv[1]) |
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Very nice. Helpful demonstration of something I'm building today. Thanks.