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pmoranga/aws-check-reserved-instances.py

Last active November 20, 2021 19:03
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AWS Reserved Report
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aws-check-reserved-instances.py
#!/usr/bin/env python3
import boto3
import warnings
warnings.filterwarnings('ignore', category=UnicodeWarning)
def get_count_reserved_by_family_base(instances,instance_type,platform):
item = {}
total = 0
for i in instances:
if instance_type[:2] in i['InstanceType'] and i['ProductDescription'] == platform:
count = get_instance_family_value(i['InstanceType'])
total += int(count) * int(i['InstanceCount'])
item['instance_type'] = get_instance_family_base(i['InstanceType'])
item['total'] = total
item['platform'] = platform
return item
def get_reserved_instances(client):
list = []
item = {}
inst = client.describe_reserved_instances(
Filters=[{'Name': 'state', 'Values': ['active', ]}])
instances = inst['ReservedInstances']
for i in instances:
instance_type = i['InstanceType']
platform = i['ProductDescription']
item = get_count_reserved_by_family_base(instances,instance_type,platform)
if item not in list:
list.append(item)
return list
def get_platform_standar(item):
# if 'VpcId' in item:
# if 'Platform' in item:
# p = 'Windows (Amazon VPC)'
# else:
# p = 'Linux/UNIX (Amazon VPC)'
# else:
if 'Platform' in item:
p = 'Windows'
else:
p = 'Linux/UNIX'
return p
def get_count_instance_by_type(instances,instance_type,platform):
item = {}
total = 0
count = 0
for r in instances:
for i in r['Instances']:
p = get_platform_standar(i)
if instance_type[:2] in i['InstanceType'] and p == platform:
count = get_instance_family_value(i['InstanceType'])
total += int(count)
item['instance_type'] = get_instance_family_base(i['InstanceType'])
item['total'] = total
item['platform'] = platform
return item
def get_count_instance_by_family_base(instances,instance_type,platform):
item = {}
total = 0
for i in instances:
if i['instance_type'] == instance_type and i['platform'] == platform:
total += i['total']
item['instance_type'] = instance_type
item['total'] = total
item['platform'] = platform
return item
def get_running_instances(client):
list = []
list_final = []
item = {}
item_final = {}
instances = client.describe_instances(
Filters=[{'Name': 'instance-state-name', 'Values': ['running']}])
for r in instances['Reservations']:
for i in r['Instances']:
if 'SpotInstanceRequestId' in i:
continue
platform = get_platform_standar(i)
instance_type = i['InstanceType']
item = get_count_instance_by_type(instances['Reservations'],instance_type,platform)
if item not in list:
list.append(item)
for instance in list:
item_final = get_count_instance_by_family_base(list,instance['instance_type'],instance['platform'])
if item_final not in list_final:
list_final.append(item_final)
return list_final
def get_message(value):
message = ''
if value < 0:
message = 'ALERT'
else:
message = 'OK'
return message
def get_scope_reserved(instances,reserved):
list = []
item = {}
for res in reserved:
value = 'false'
item = {}
for ins in instances:
if ins['instance_type'] == res['instance_type'] and ins['platform'] == res['platform']:
total = int(ins['total']) - int(res['total'])
item['instance_type'] = ins['instance_type']
item['total'] = int(total)
item['platform'] = ins['platform']
item['message'] = get_message(total)
value = 'true'
else:
if value == 'false':
total = -1 * int(res['total'])
item['instance_type'] = res['instance_type']
item['total'] = int(total)
item['platform'] = res['platform']
item['message'] = get_message(total)
if item is not None:
list.append(item)
for insf in instances:
value = 'false'
item = {}
for comp in list:
if insf['instance_type'] == comp['instance_type'] and insf['platform'] == comp['platform']:
value = 'false'
break
else:
value = 'true'
if value == 'true':
item['instance_type'] = insf['instance_type']
item['total'] = insf['total']
item['platform'] = insf['platform']
item['message'] = "DESIRE"
if item is not None:
list.append(item)
return list
def get_instance_family_value(type):
switcher = {
"m1.small": "1",
"m1.medium": "2",
"m1.large": "4",
"m1.xlarge": "8",
"m2.xlarge": "1",
"m2.2xlarge": "2",
"m2.4xlarge": "8",
"m3.medium": "1",
"m3.large": "2",
"m3.xlarge": "4",
"m3.2xlarge": "8",
"m4.large": "1",
"m4.xlarge": "2",
"m4.2xlarge": "4",
"m4.4xlarge": "8",
"m4.10xlarge": "20",
"m4.16xlarge": "32",
"m5.large": "1",
"m5.xlarge": "2",
"m5.2xlarge": "4",
"m5.4xlarge": "8",
"m5.12xlarge": "24",
"m5.24xlarge": "48",
"c1.medium": "1",
"c1.xlarge": "2",
"t1.micro": "1",
"t2.nano": "1",
"t2.micro": "2",
"t2.small": "4",
"t2.medium": "8",
"t2.large": "16",
"t2.xlarge": "32",
"t2.2xlarge": "64",
"c3.large": "1",
"c3.xlarge": "2",
"c3.2xlarge": "4",
"c3.4xlarge": "8",
"c3.8xlarge": "16",
"c4.large": "1",
"c4.xlarge": "2",
"c4.2xlarge": "4",
"c4.4xlarge": "8",
"c4.8xlarge": "16",
"c5.large": "1",
"c5.xlarge": "2",
"c5.2xlarge": "4",
"c5.4xlarge": "8",
"c5.9xlarge": "18",
"c5.18xlarge": "36",
"r3.large": "1",
"r3.xlarge": "2",
"r3.2xlarge": "4",
"r3.4xlarge": "8",
"r3.8xlarge": "16",
"r4.large": "1",
"r4.xlarge": "2",
"r4.2xlarge": "4",
"r4.4xlarge": "8",
"r4.8xlarge": "16",
"r4.16xlarge": "32"
}
return switcher.get(type, "nothing")
def get_instance_family_base(type):
switcher = {
"m1.small": "m1.small",
"m1.medium": "m1.small",
"m1.large": "m1.small",
"m1.xlarge": "m1.small",
"m2.xlarge": "m2.xlarge",
"m2.2xlarge": "m2.xlarge",
"m2.4xlarge": "m2.xlarge",
"m3.medium": "m3.medium",
"m3.large": "m3.medium",
"m3.xlarge": "m3.medium",
"m3.2xlarge": "m3.medium",
"m4.large": "m4.large",
"m4.xlarge": "m4.large",
"m4.2xlarge": "m4.large",
"m4.4xlarge": "m4.large",
"m4.10xlarge": "m4.large",
"m4.16xlarge": "m4.large",
"m5.large": "m5.large",
"m5.xlarge": "m5.large",
"m5.2xlarge": "m5.large",
"m5.4xlarge": "m5.large",
"m5.12xlarge": "m5.large",
"m5.24xlarge": "m5.large",
"c1.medium": "c1.medium",
"c1.xlarge": "c1.medium",
"t1.micro": "t1.micro",
"t2.nano": "t2.nano",
"t2.micro": "t2.nano",
"t2.small": "t2.nano",
"t2.medium": "t2.nano",
"t2.large": "t2.nano",
"t2.xlarge": "t2.nano",
"t2.2xlarge": "t2.nano",
"c3.large": "c3.large",
"c3.xlarge": "c3.large",
"c3.2xlarge": "c3.large",
"c3.4xlarge": "c3.large",
"c3.8xlarge": "c3.large",
"c4.large": "c4.large",
"c4.xlarge": "c4.large",
"c4.2xlarge": "c4.large",
"c4.4xlarge": "c4.large",
"c4.8xlarge": "c4.large",
"c5.large": "c5.large",
"c5.xlarge": "c5.large",
"c5.2xlarge": "c5.large",
"c5.4xlarge": "c5.large",
"c5.9xlarge": "c5.large",
"c5.18xlarge": "c5.large",
"r3.large": "r3.large",
"r3.xlarge": "r3.large",
"r3.2xlarge": "r3.large",
"r3.4xlarge": "r3.large",
"r3.8xlarge": "r3.large",
"r4.large": "r4.large",
"r4.xlarge": "r4.large",
"r4.2xlarge": "r4.large",
"r4.4xlarge": "r4.large",
"r4.8xlarge": "r4.large",
"r4.16xlarge": "r4.large"
}
return switcher.get(type, "nothing")
def get_description():
print('=========== DESCRIPTION ==========')
print('OK : If is "0" all reserved servers applies for all instances in this family and network. If is more than "0" all reserved servers applies for all instances in this family and network and there some servers that you can reserved')
print('ALERT: There are reserved servers that do not apply for all instances in this family and network')
print('DESIRE: You have instances that you can reserved')
def get_table(instances,title):
print('===========%s===========' % (title))
x = sorted(instances, key = lambda i: (i['instance_type']))
for i in x:
if i is not None:
instance_type = i['instance_type']
platform = i['platform']
total = i['total']
if title == 'REPORT':
message = i['message']
print('\t%12s\t(%-i)\t%12s\t%-12s' % (message,total,instance_type,platform))
else:
print('\t(%i)\t%12s\t%-12s' % (total,instance_type,platform))
ec2 = boto3.client('ec2')
ris = get_reserved_instances(ec2)
ins = get_running_instances(ec2)
comp = get_scope_reserved(ins,ris)
get_table(ris,"RESERVED")
get_table(ins,"INSTANCES")
get_table(comp,"REPORT")
get_description()
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