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spot-price.py
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spot-price.py
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import boto3
import json
import re
import datetime
import argparse
from decimal import Decimal
from prettytable import PrettyTable
parser = argparse.ArgumentParser(description='Compare the Instance\'s actual price and spot price.',
usage='''\n\
$ spot-price.py -h \n\
$ spot-price.py --region us-east-1 --instance-type m5.xlarge --product-type Linux/UNIX --output text --price-type all --mode compare \n\
$ python spot-price.py --region us-east-1 --instance-type m5.xlarge c5.xlarge --product-type Linux/UNIX --output json --price-type all --mode show''')
parser.add_argument('--region', type=str,
help='Region\'s code, like us-east-1', required=True)
parser.add_argument('--product-type', type=str, default='Linux/UNIX', help='(default: %(default)s)', choices=[
'Linux/UNIX', 'SUSE Linux', 'Windows', 'Linux/UNIX (Amazon VPC)', 'SUSE Linux (Amazon VPC)', 'Windows (Amazon VPC)'])
parser.add_argument('--mode', type=str, default='show',
help='(default: %(default)s)', choices=['show', 'compare'])
parser.add_argument('--output', type=str, default='text',
help='(default: %(default)s)', choices=['text', 'json', 'table'])
parser.add_argument('--price-type', type=str, default='all',
help='(default: %(default)s)', choices=['all', 'ecu', 'memory', 'economy'])
parser.add_argument('--instance-type', nargs='+',
help='(t1.micro or t1.micro t2.micro ...)', default=[], required=True)
args = parser.parse_args()
price = boto3.client('pricing')
priceList = {}
betterPrice = {}
betterPrice['economy'] = 0
betterECUPrice = {}
betterECUPrice['pricePerEcu'] = 100
betterMemoryPrice = {}
betterMemoryPrice['pricePerMemory'] = 100
table = PrettyTable()
table.field_names = ['instance type', 'Availability Zone', 'OnDemand Price',
'Spot Price', 'Percentage Economy', 'Price per Memory', 'Price per ECU']
productTypes = {
'Linux/UNIX': {
'os': 'LINUX'
},
'SUSE Linux': {
'os': 'SUSE'
},
'Windows': {
'os': 'Windows'
},
'Linux/UNIX (Amazon VPC)': {
'os': 'LINUX'
},
'SUSE Linux (Amazon VPC)': {
'os': 'SUSE'
},
'Windows (Amazon VPC)': {
'os': 'Windows'
}
}
regions = {
'us-east-1': {
'location': 'US East (N. Virginia)'
},
'us-east-2': {
'location': 'US East (Ohio)'
},
'us-west-1': {
'location': 'US West (N. California)'
},
'us-west-2': {
'location': 'US West (Oregon)'
},
'ap-south-1': {
'location': 'Asia Pacific (Mumbai)'
},
'ap-northeast-3': {
'location': 'Asia Pacific (Osaka-Local)'
},
'ap-northeast-2': {
'location': 'Asia Pacific (Seoul)'
},
'ap-southeast-1': {
'location': 'Asia Pacific (Singapore)'
},
'ap-southeast-2': {
'location': 'Asia Pacific (Sydney)'
},
'ap-northeast-1': {
'location': 'Asia Pacific (Tokyo)'
},
'ca-central-1': {
'location': 'Canada (Central)'
},
'eu-central-1': {
'location': 'EU (Frankfurt)'
},
'eu-west-1': {
'location': 'EU (Ireland)'
},
'eu-west-2': {
'location': 'EU (London)'
},
'eu-west-3': {
'location': 'EU (Paris)'
},
'sa-east-1': {
'location': 'South America (Sao Paulo)'
}
}
for instanceType in args.instance_type:
responseActualPrice = price.get_products(
ServiceCode="AmazonEC2",
Filters=[
{
'Field': 'ServiceCode',
'Type': 'TERM_MATCH',
'Value': 'AmazonEC2'
},
{
'Field': 'instanceType',
'Type': 'TERM_MATCH',
'Value': instanceType
},
{
'Field': 'location',
'Type': 'TERM_MATCH',
'Value': regions[args.region]['location']
},
{
'Field': 'operatingSystem',
'Type': 'TERM_MATCH',
'Value': productTypes[args.product_type]['os']
},
{
'Field': 'preInstalledSw',
'Type': 'TERM_MATCH',
'Value': 'NA'
},
{
'Field': 'tenancy',
'Type': 'TERM_MATCH',
'Value': 'Shared'
}
],
FormatVersion="aws_v1",
MaxResults=1
)
if (responseActualPrice['PriceList'] != []):
priceList[instanceType] = {}
data = json.loads(responseActualPrice['PriceList'][0])
data_key = list(data['terms']['OnDemand'].keys())[0]
terms_key = list(data['terms']['OnDemand'][data_key]
['priceDimensions'].keys())[0]
terms = data['terms']['OnDemand'][data_key]['priceDimensions'][terms_key]
attributes = data['product']['attributes']
if ("On Demand" in terms['description'] and "BYOL" not in terms['description']) or ("Unused Reservation" in terms['description']):
actualPrice = Decimal(terms['pricePerUnit']['USD'])
memory = float(re.sub(r' GiB', '', attributes['memory']))
cpu = int(attributes['vcpu'])
if (instanceType.split(".")[0] != 't1') and (instanceType.split(".")[0] != 't2') and (instanceType.split(".")[0] != 't3'):
ecu = int(attributes['ecu'])
else:
ecu = 0
spot = boto3.client('ec2', region_name=args.region)
responseSpotPrice = spot.describe_spot_price_history(
EndTime=datetime.datetime.now(),
InstanceTypes=[instanceType],
ProductDescriptions=[args.product_type],
StartTime=datetime.datetime.now() - datetime.timedelta(minutes=5)
)
for spotPrice in responseSpotPrice['SpotPriceHistory']:
payload = {
'type': instanceType,
'actualPrice': float(actualPrice),
'os': productTypes[args.product_type]['os'],
'productDescription': args.product_type,
'memory': memory,
'cpu': cpu,
'ecu': ecu,
'spotPrice': float(spotPrice['SpotPrice']),
'AvailabilityZone': spotPrice['AvailabilityZone'],
'pricePerMemory': float(spotPrice['SpotPrice'])/memory,
'pricePerEcu': float(0) if ecu == 0 else float(spotPrice['SpotPrice'])/ecu,
'economy': "{0:.2f}".format(float(0) if actualPrice == 0 else 100-((float(spotPrice['SpotPrice']) * 100)/float(actualPrice))),
'timestamp': spotPrice['Timestamp'].replace(microsecond=0).isoformat()
}
if args.mode == 'compare':
if float(payload['economy']) > float(betterPrice['economy']):
betterPrice = payload
if float(payload['pricePerMemory']) < float(betterMemoryPrice['pricePerMemory']):
betterMemoryPrice = payload
if float(payload['pricePerEcu']) < float(betterECUPrice['pricePerEcu']):
betterECUPrice = payload
else:
if args.output == 'text':
print('--- %s price --- \ninstance type: %s \nregion: %s \nzone: %s \nvCPU: %s \necu: %s \nmemory: %s \nOnDemand price: %s \nSpot price: %s \neconomy: %s %%'
% (instanceType, payload['type'], regions[args.region]['location'], payload['AvailabilityZone'], payload['cpu'], payload['ecu'], payload['memory'], payload['actualPrice'], payload['spotPrice'], payload['economy']))
print('')
elif args.output == 'table':
table.add_row([payload['type'], payload['AvailabilityZone'], payload['actualPrice'],
payload['spotPrice'], payload['economy'], payload['pricePerMemory'], payload['pricePerEcu']])
else:
priceList[instanceType][spotPrice['AvailabilityZone']] = payload
if args.mode == 'compare' and args.output == 'text':
print('')
if args.price_type == 'economy' or args.price_type == 'all':
print('--- best economy price --- \ninstance type: %s \nregion: %s \nzone: %s \nvCPU: %s \necu: %s \nmemory: %s \nOnDemand price: %s \nSpot price: %s \neconomy: %s %%'
% (betterPrice['type'], regions[args.region]['location'], betterPrice['AvailabilityZone'], betterPrice['cpu'], betterPrice['ecu'], betterPrice['memory'], betterPrice['actualPrice'], betterPrice['spotPrice'], betterPrice['economy']))
print('')
if args.price_type == 'memory' or args.price_type == 'all':
print('--- best memory price --- \ninstance type: %s \nregion: %s \nzone: %s \nvCPU: %s \necu: %s \nmemory: %s \nOnDemand price: %s \nSpot price: %s \neconomy: %s %%'
% (betterMemoryPrice['type'], regions[args.region]['location'], betterMemoryPrice['AvailabilityZone'], betterMemoryPrice['cpu'], betterMemoryPrice['ecu'], betterMemoryPrice['memory'], betterMemoryPrice['actualPrice'], betterMemoryPrice['spotPrice'], betterMemoryPrice['economy']))
print('')
if args.price_type == 'ecu' or args.price_type == 'all':
print('--- best ecu price --- \ninstance type: %s \nregion: %s \nzone: %s \nvCPU: %s \necu: %s \nmemory: %s \nOnDemand price: %s \nSpot price: %s \neconomy: %s %%'
% (betterECUPrice['type'], regions[args.region]['location'], betterECUPrice['AvailabilityZone'], betterECUPrice['cpu'], betterECUPrice['ecu'], betterECUPrice['memory'], betterECUPrice['actualPrice'], betterECUPrice['spotPrice'], betterECUPrice['economy']))
print('')
elif args.mode == 'compare' and args.output == 'json':
json_output = {}
if args.mode == 'compare':
if args.price_type == 'economy' or args.price_type == 'all':
json_output['economy'] = betterPrice
if args.price_type == 'memory' or args.price_type == 'all':
json_output['memory'] = betterMemoryPrice
if args.price_type == 'ecu' or args.price_type == 'all':
json_output['ecu'] = betterECUPrice
print(json.dumps(json_output, sort_keys=True))
elif args.mode == 'compare' and args.output == 'table':
table.add_row([betterPrice['type'], betterPrice['AvailabilityZone'], betterPrice['actualPrice'],
betterPrice['spotPrice'], betterPrice['economy'], betterPrice['pricePerMemory'], betterPrice['pricePerEcu']])
table.add_row([betterMemoryPrice['type'], betterMemoryPrice['AvailabilityZone'], betterMemoryPrice['actualPrice'],
betterMemoryPrice['spotPrice'], betterMemoryPrice['economy'], betterMemoryPrice['pricePerMemory'], betterMemoryPrice['pricePerEcu']])
table.add_row([betterECUPrice['type'], betterECUPrice['AvailabilityZone'], betterECUPrice['actualPrice'],
betterECUPrice['spotPrice'], betterECUPrice['economy'], betterECUPrice['pricePerMemory'], betterECUPrice['pricePerEcu']])
print(table.get_string())
elif args.mode == 'show' and args.output == 'table':
print(table.get_string(sortby="Percentage Economy", reversesort=True))
elif args.mode == 'show' and args.output == 'json':
print(json.dumps(priceList, sort_keys=True))