CloudWatch is a great service for metrics. You get tons of metrics out of the box and you can also create your custom ones. One of the most important things you can do with metrics is to create alarms, so how do we get the most out of CloudWatch alarms? In this episode we share our insights and cover the different types of alarms that exist, how to create an alarm, what to do when an alarm is triggered, a few examples of useful alarms and some of the drawbacks of CloudWatch alarms and how to overcome them. ⏱ Timing: 00:00 Intro 00:50 Different types of Alarms (standard and composite) 01:40 How to create an alarm 03:39 Some examples and use cases for CloudWatch Alarms 05:00 States of an alarm 06:45 How to get notified (Email, custom integrations with Lambda, chat bots) 09:34 What to do once an alarm fires? 12:04 Example use cases for composite alarms 14:27 Cross accounts alarms 15:43 Other use cases and examples for alarms (Alarms based on business metrics, Reactive vs Proactive alarms, Anomaly based alarms, Asynchronous computation) 22:00 Drawbacks of CloudWatch alarms 23:25 SLIC Watch for automatically provisioning alarms with Serverless framework projects 24:30 CloudWatch alarms costs 25:45 Outro In this episode, we mentioned the following resources: - Our previous episode on CloudWatch metrics: https://www.youtube.com/watch?v=vwo2jXfyooQ - SLIC Watch, a serverless framework plugin that generates sensible alarms and dashboard automatically: https://fth.link/slic-watch You can listen to AWS Bites wherever you get your podcasts: - Apple Podcasts: https://podcasts.apple.com/us/podcast/aws-bites/id1585489017 - Spotify: https://open.spotify.com/show/3Lh7PzqBFV6yt5WsTAmO5q - Google: https://podcasts.google.com/feed/aHR0cHM6Ly9hbmNob3IuZm0vcy82YTMzMTJhMC9wb2RjYXN0L3Jzcw== - Breaker: https://www.breaker.audio/aws-bites - RSS: ​​https://anchor.fm/s/6a3312a0/podcast/rss Do you have any AWS questions you would like us to address? Leave a comment here or connect with us on Twitter: - https://twitter.com/eoins - https://twitter.com/loige #aws #alarms #cloudwatch ... https://www.youtube.com/watch?v=rk4QMJf6R4U

In this episode, we discuss best practices for working with AWS Lambda. We cover how Lambda functions work under the hood, including cold starts and warm starts. We then explore different invocation types - synchronous, asynchronous, and event-based. For each, we share tips on performance, cost optimization, and monitoring. Other topics include function structure, logging, instrumentation, and security. Throughout the episode, we aim to provide a solid mental model for serverless development and share our experiences to help you build efficient and robust Lambda applications. ? SPONSORS ? AWS Bites is brought to you by fourTheorem, an AWS Partner that specialises in modern application architecture and migration. We are big fans of serverless and we have worked on quite a few serverless projects even at a massive scale! If you are curious to find out more and to work with us, check us out at fourtheorem.com! ? Chapters: 00:00 Intro 01:04 Overview of how Lambda works - serverless, event-driven, cold starts 05:12 Types of Lambda invocation - synchronous, asynchronous, event-based 11:20 Lambda cost model and performance optimizations 16:08 Structuring Lambda functions for testability and separation of concerns 20:10 Lambda Power Tools - logs, metrics, traces, idempotency 22:38 Other quick tips about configuration, secrets, infrastructure as code, and security 25:27 Conclusion and additional resources for learning Lambda best practices In this episode, we mentioned the following resources: - Ep. 110 "Why should you use Lambda for Machine Learning?": https://awsbites.com/110-why-should-you-use-lambda-for-machine-learning/ - Ep. 108 "How to Solve Lambda Python Cold Starts": https://awsbites.com/108-how-to-solve-lambda-python-cold-starts/ - Ep. 104 "Explaining Lambda Runtimes": https://awsbites.com/104-explaining-lambda-runtimes/ - Ep. 92 "Decomposing the Monolith Lambda": https://awsbites.com/92-decomposing-the-monolith-lambda/ - Ep. 64 "How do you write Lambda Functions in Rust?": https://awsbites.com/64-how-do-you-write-lambda-functions-in-rust/ - Ep. 65 "Solving SQS and Lambda concurrency problems": https://awsbites.com/65-solving-sqs-and-lambda-concurrency-problems/ - Ep. 10 "Lambda or Fargate for containers?": https://awsbites.com/10-lambda-or-fargate-for-containers/ - Ep. 4 "What language should you use for Lambda?": https://awsbites.com/4-what-language-should-you-use-for-lambda/ - Ep. 6 "Is AWS Lambda cheap or expensive?": https://awsbites.com/6-is-aws-lambda-cheap-or-expensive/ - Article: "What do you need to know about SNS?": https://fourtheorem.com/what-do-you-need-to-know-about-sns/ - Article: "What can you do with EventBridge": https://fourtheorem.com/what-can-you-do-with-eventbridge/ - Article: "What do you need to know about SQS?": https://fourtheorem.com/what-do-you-need-to-know-about-sqs/ - Yan Cui's video about using Lambda Destinations instead of DLQs: https://www.youtube.com/watch?v=hOetf6YN3zo - Profiling functions with AWS Lambda Power Tuning: https://docs.aws.amazon.com/lambda/latest/operatorguide/profile-functions.html - Blog post by Luca Mezzalira about hexagonal architectures for Lambda: https://aws.amazon.com/blogs/compute/developing-evolutionary-architecture-with-aws-lambda/ - Ep. 41 "How can Middy make writing Lambda functions easier?": https://awsbites.com/41-how-can-middy-make-writing-lambda-functions-easier/ - SLIC Watch for automated dashboards and alarms: https://github.com/fourTheorem/slic-watch - Ep. 35 "How can you become a Logs Ninja with CloudWatch?": https://awsbites.com/35-how-can-you-become-a-logs-ninja-with-cloudwatch/ - Ep. 34 "How to get the most out of CloudWatch Alarms?": https://awsbites.com/34-how-to-get-the-most-out-of-cloudwatch-alarms/ - Ep. 33 "What can you do with CloudWatch metrics?": https://awsbites.com/33-what-can-you-do-with-cloudwatch-metrics/ You can listen to AWS Bites wherever you get your podcasts: - Apple Podcasts: https://podcasts.apple.com/us/podcast/aws-bites/id1585489017 - Spotify: https://open.spotify.com/show/3Lh7PzqBFV6yt5WsTAmO5q - Google: https://podcasts.google.com/feed/aHR0cHM6Ly9hbmNob3IuZm0vcy82YTMzMTJhMC9wb2RjYXN0L3Jzcw== - Breaker: https://www.breaker.audio/aws-bites - RSS: ​​https://anchor.fm/s/6a3312a0/podcast/rss Do you have any AWS questions you would like us to address? Leave a comment here or connect with us on X, formerly Twitter: - https://twitter.com/eoins - https://twitter.com/loige #aws #lambda #serverless #bestpractice ... https://www.youtube.com/watch?v=EgqVPlRjeE8

Some random clips from our journey at re:Invent 2023 in Las Vegas Music: Overdrive by Matrika: https://musicvine.com/track/matrika/overdrive #aws #lasvegas #reinvent #reinvent2023 #amazonwebservices #conference #venitian #thevenitian #shorts #short #cloud #speaking #learning #awshero #heroes #journey #convention #people #fastpaced ... https://www.youtube.com/watch?v=R3EZmUHSvbY

In this episode, we discuss AWS Resource Access Manager (RAM) and how it can be used to securely share AWS resources like VPC subnets, databases, and SSM parameters across accounts. We explain the benefits of using RAM over other options like resource policies and assumed roles. Some key topics covered include how to get started with RAM, how it works from the resource owner and resource participant side, and common use cases like sharing VPC subnets, Aurora databases, and SSM parameters. ? SPONSORS ? AWS Bites is brought to you by fourTheorem, the AWS consulting partner with lots of experience with AWS, Serverless, and Lambda. If you are looking for a partner that can help you deliver your next Serverless workload successfully, look no further and reach out to us at https://fourtheorem.com ? Chapters: 00:00 Intro 00:48 AWS Resource Access Manager and the problems it solves 02:07 Common use cases for using RAM (sharing VPC subnets and the benefits over VPC peering) 05:50 Sharing SSM parameters with RAM 06:47 What is the process for sharing resources with RAM and what are the options available 09:55 Sharing from the participant side, what can they see and do? 12:59 Summary and closing notes In this episode, we mentioned the following resources: - Sharing Aurora Databases with RAM (Conor Maher's article): https://fourtheorem.com/using-aws-resource-access-manager-for-development/ - Blog post "VPC Lattice: The Future of AWS Networking Explained": https://fourtheorem.com/vpc-lattice/ - Our previous episode dedicated to VPC Lattice: https://awsbites.com/88-what-is-vpc-lattice/ - VPC Lattice sample code base: https://github.com/fourTheorem/vpc-lattice-demo - Sharing AWS Systems Manager Parameters official announcement: https://aws.amazon.com/about-aws/whats-new/2024/02/aws-systems-manager-parameter-store-cross-account-sharing/ - Official documentation for what can be shared with RAM: https://docs.aws.amazon.com/ram/latest/userguide/shareable.html You can listen to AWS Bites wherever you get your podcasts: - Apple Podcasts: https://podcasts.apple.com/us/podcast/aws-bites/id1585489017 - Spotify: https://open.spotify.com/show/3Lh7PzqBFV6yt5WsTAmO5q - Google: https://podcasts.google.com/feed/aHR0cHM6Ly9hbmNob3IuZm0vcy82YTMzMTJhMC9wb2RjYXN0L3Jzcw== - Breaker: https://www.breaker.audio/aws-bites - RSS: ​​https://anchor.fm/s/6a3312a0/podcast/rss Do you have any AWS questions you would like us to address? Leave a comment here or connect with us on X, formerly Twitter: - https://twitter.com/eoins - https://twitter.com/loige #aws #permissions #iam #policy ... https://www.youtube.com/watch?v=RL0IYfkSbJg