Lambda

 1 import boto3
 2 import datetime
 3 
 4 client = boto3.client('ec2', )
 5 alias = boto3.client('iam').list_account_aliases()['AccountAliases'][0]
 6 regions = [region['RegionName'] for region in client.describe_regions()['Regions']]
 7 
 8 
 9 def get_ri(regions, file):
10     global alias
11
 
     with open(file, 'w', encoding='utf-8') as f:
12 
13         for region in regions:
14             print(region)
15             ec2 = boto3.client('ec2', region_name=region,)
16             reserved_instances = ec2.describe_reserved_instances()
17             for reserved_instance in reserved_instances['
 
ReservedInstances']:
18                 state = reserved_instance['State']
19                 endtimestr = str(reserved_instance['End']).split('+')[0]
20                 endtime = datetime.datetime.strptime(endtimestr, '%Y-%m-%d %H:%M:%S')
21                 timedif = (endtime - datetime.datetime.now()).days
 
22                 if state == "active" and timedif <= 15:
23                     msg = f'''
24                     alias:  {alias}
25                     region: {region}
26                     ReservedInstancesId: {reserved_instance['ReservedInstancesId']},
27                     InstanceType:   {reserved_instance['InstanceType']},
29                     state: {reserved_instance['State']},
30                     Start:  {reserved_instance['Start']},
31                     End:    {reserved_instance['End']},
32                     InstanceCount:  {reserved_instance['InstanceCount']}
33                     '''
34                     f.write(msg)
35                     print(msg)
36 
37 def sends_sns(file):
38     client = boto3.client('sns', region_name='cn-northwest-1',
39                           aws_access_key_id='AKIAQG4I2NOISOTWQG45',
40                           aws_secret_access_key='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', )
41     try:
42         with open(file, 'r', encoding='utf-8') as f:
43             msg = f.read()
44             if msg:
45                 response = client.publish(
46                     TargetArn='arn:aws-cn:sns:cn-northwest-1:014782458769:UnitAlarm',
47                     Message=msg,
48                 )
49     except FileNotFoundError:
50         pass
51 
52 
53 
54 def lambda_handler(event, context):
55     # TODO implement
56     file = '/tmp/ri_test.txt'
57     get_ri(regions, file)
58     sends_sns(file)
59 
60 
61 # if __name__ == '__main__':
62 #     lambda_handler(event='txt', context='test')

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