6 tips for AWS Well-Architected Cost Optimisation + Serverless bonuses

Here are 6 tips or tools for improving your Cost Optimisation strategies for AWS. Grab the free tools below to get a deeper cost insight on your account.

Trusted Advisor

The basic level of Trusted Advisor checks over 30 key metrics for Security and Service Limits, but the real gold is having Business or Enterprise support which will let you access a larger range of checks (Cost Optimisation) and get programmatic access to the Trusted Advisor API. You can then monitor Reserved Instance (RIs) usage and under utilised or idle EC2 or RDS resources. Try the AWS tools https://github.com/aws/Trusted-Advisor-Tools which uses Cloudwatch Events and Lambda to help automate best practices.

Billing Alarms

Billing alarms allows you to be proactive about being notified about cost increases. Create a billing alarm on the Billing console. Set limits, (create multiple alarms for different thresholds $10, $50, $1000) and pair with SNS/Email notifications and when they are breached, you’ll be told. Grab this free cloudformation template for create a quick billing alarm. https://gitlab.com/shallawell/cfn-billing-alarm

Cost Explorer

Visualise your spend by resources. Use this AWS SAM (Serverless Application Module) function to generate a monthly excel report to have it delivered to your inbox. https://github.com/aws-samples/aws-cost-explorer-report

Resource Tagging Strategy

Use a tagging strategy to assist cost allocation by allowing cost reporting by tags. Consider the Business Tags suggestions on this page for some ideas. Tagging Strategies . Used in conjunction with the Cost Explorer script (update the Cost Tags), you can start to gain insights to new information.

AWS Simply Cost Calculator

This handy calculator lets you estimate resource costs before deployment, useful in some scenarios, but it has limited (hence the name: simple) options for some resource types. Good for a simple 3 tier app with typical storage and data transfer. Or maybe you just need a quick EC2 cost comparison tool to compare multiple instance types side by side.

AWS News

This is by far the easiest way to stay on top of new announcements and services (operational excellence) and another way to be cost aware. For example – M5 vs M4 EC2 will deliver 14% better price/performance on a per core basis. If you are still using M4’s consider a migration to the newer, faster (performance efficiency), cheaper (cost optimisation) technology

Got a RSS reader? no, get one – and subscribe to AWS News. I use a browser based one (do a search), so updates are only a click away.

HTH

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Within 5 minutes, I had registered, logged in, view the sample code, deployed it and an Apache web server and run the code. Super Easy!!

Some of the constraints of other solutions may be;

* constraints
VMWare View 6 (v1.0 linux desktops)
Hardware purchases
Building and Managing infrastructure
Short cycle project work

Python example : Test script / module using regex

This is a simple piece of code to test if sys.argv[1] matches a file type using a regex to match a specific file type, in this case *.flac (it doesn’t actual check to see if the file is an actual Flac file, just that it is named correctly).

Here is the code with plenty of comments.

Also included (commented out) is the logic to match a date string.

Happy coding.

#!/usr/bin/env python3
# Author : shallawell@gmail.com, @shallawell
# A test function to check a if argv contains *.flac
# Filesname: testFLAC.py
# Description:

# ensure PYTHONPATH is set properly
import sys,os,os.path
sys.path.append(os.path.expanduser('/usr/local/lib/python3.4/dist-packages'))

import re

def FLACfileTest():
    # Regex for *.flac
    pattern = r"([a-zA-Z]?\.flac)"
    # Regex for Date
    #pattern = r"([a-zA-Z]+) (\d+)"
    input = str(sys.argv[1])
    #input = "June 24"
#    input = "brian.mp3"  # FALSE condition
    #input = "brian.mp3.flac"  # TRUE condition
    if re.search(pattern, input):
        match = re.search(pattern, input)
        #match = re.search(regex, input)
    # This will print [0, 7), since it matches at the beginning and end of the
    # string
    #print "Match at index %s, %s" % (match.start(), match.end())
    # So this will print "June 24"
    #print "Full match: %s" % (match.group(0))
        print "File ends with FLAC.. runs ok %s" % (match.group(0))
        return 0 # pass
    # So this will print "June"
    #print "Month: %s" % (match.group(1))
    # So this will print "24"
    #print "Day: %s" % (match.group(2))
    else:
    # If re.search() does not match, then None is returned
        print("Error: Must be a FLAC file .. your file was " + sys.argv[1])
        return 1 # fail

# make the file usable as a script as well as an importable module
if __name__ == "__main__":
    import os, fnmatch
    # execute function
    FLACfileTest()

#version info
__version__ = '0.1'

To run

# python testFLAC.py brian.mp3  # fail
# python testFLAC.py brian.mp3.flac  # pass

Go to my Git repository to get the source source testFLAC.py source