Cloud Software Engineering Newsletter #20 (January Re-Cap 2021)
Tags: cloud, devops, serverless, news
Published: 2021-02-02 07:10:54

---
title: Cloud Software Engineering Newsletter #20 (January Re-Cap 2021)
published: true
date: 2021-02-02 07:04:50 UTC
tags: cloud, devops, serverless, news
canonical_url: https://www.thedevcoach.co.uk/cloud-software-engineering-newsletter-20/
---

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**My promise to you:** _If you receive only one newsletter on cloud engineering, this should be it. You should never miss an important update, I prioritize the important things up top and read everything I share. If I’m not achieving my promise, hit reply and let me know how I can improve._

Hello friends! Gather around, it’s time for this month’s round-up of everything that’s happening in the world of the cloud. I really enjoy sitting down at the end of the month to put this newsletter together for you, as it also gives me the chance to slow down a little and take in the news myself!

![Cloud Native Software Engineering Newsletter Banner](https://www.thedevcoach.co.uk/wp-content/uploads/2020/07/Screenshot-2020-07-19-at-10.48.57-760x345.png)

I’ve taken on-board some feedback and now the personal updates are at the bottom, so we get straight into the cloud stuff (after this brief how-do-you-do of course). So be sure to scroll all the way through if you want to know what I’ve been up to personally this month!

Anyway, let’s get into it — what’s been happening in January 2021?

## This Month’s Top Cloud Pick(s) 

_If you only read one or two things this month, let it be this._

[Best Resources For AWS Certifications: An Extensive & Opinionated Guide (So You Pass The First Time!)](https://www.thedevcoach.co.uk/aws-exam-best-resources/) _(Lou Bichard, Dev Coach)_ — Considering it took me an entire week and is currently the longest post I’ve ever written, I don’t feel so bad that I’m recommending my own post as a top pick to you. I spent hours trawling through many different posts, reddit threads, communities to try and find the best resources people were recommending. I then mushed that together with my own experience and voila, this article was born. If you’re thinking of taking an AWS exam I can guarantee you’ll pick up a tip, find out about a new community or podcast from the article.

## Feature Releases & Announcements 

_New stuff in the cloud, that you probably should know about._

[AWS Lambda Security Whitepaper](https://d1.awsstatic.com/whitepapers/Overview-AWS-Lambda-Security.pdf) (_AWS Whitepapers_) — I’ll be sharing more updates on the AWS whitepapers as they are released and/or updated in future newsletters. Earlier this month, AWS updated their AWS Lambda security whitepaper. As AWS Lambda is getting more and more complicated ([AWS Lambda layers](https://docs.aws.amazon.com/lambda/latest/dg/configuration-layers.html), [AWS Lambda Extensions](https://www.thedevcoach.co.uk/aws-lambda-extensions-should-you-care/), etc), these new features introduce more security and attack vectors. Understanding how lambda works under the hood is therefore essential to secure it, for instance: you’ll need to grok things like how [AWS Lambda re-uses containers between executions](https://twitter.com/loujaybee/status/1346364556638121985?s=20) and passes memory. Also, reminds me of this article I wrote [5 things you thought AWS Lambda does, but it doesn’t](https://www.thedevcoach.co.uk/misconceptions-serverless-aws-lambda/).

[AWS Workshops](https://workshops.aws/)  (_AWS_) — Whilst not strictly an announcement, I felt compelled to share this find. AWS has recently published this portal of different workshops that go through patterns and exercises for AWS building. It seems that most of the workshops have been copied in from somewhere else, and the quality is lacking a bit right now, but I do think the site is still worth bookmarking and checking back in the future whether you’re looking to complete a workshop or searching for inspiration to give one.

## How-To’s & Educational Pieces

_Various articles on how to do various cloud things._

3-part series: [Operating Lambda: Understanding event-driven](https://aws.amazon.com/blogs/compute/operating-lambda-understanding-event-driven-architecture-part-1/), [Operating Lambda: Design Principles in event-driven architecture](https://aws.amazon.com/blogs/compute/operating-lambda-design-principles-in-event-driven-architectures-part-2/) & [Operating Lambda: Anti-patterns](https://aws.amazon.com/blogs/compute/operating-lambda-anti-patterns-in-event-driven-architectures-part-3/)  _(James Beswick, AWS)_— If serverless functions are the future (which they are) then event-driven is a partner in that future. In this series of articles, James digs into some intricacies of event-driven architectures, starting with the basics, then the principles, and finally some anti-patterns. There’s quite a wealth of information in these few articles, and it starts to dig into the real essence of the serverless world, which is event-driven, decoupled microservices. BUT use these “rules” with caution. I agree with a lot of what James says, and there’s plenty of best practice here, BUT _sometimes_ breaking rules is the pragmatic choice, provided that you understand the trade-offs that you’re making.

[Why are my tests so slow? A likely list of suspects, anti-patterns, and unresolved trauma](https://charity.wtf/2020/12/31/why-are-my-tests-so-slow-a-list-of-likely-suspects-anti-patterns-and-unresolved-personal-trauma/amp/) (_Charity Majors, Personal Blog_) — I almost forgot about this one, since it was released in early January. In this post, Charity Majors talks about the idea that CI pipelines commit to deploy should run in under 15 minutes, and what the main culprits are that could be preventing you from reaching that milestone.

[Delivering BBC online using Serverless](https://medium.com/bbc-design-engineering/delivering-bbc-online-using-serverless-79d4a9b0da16) (_Johnathan Ishmael, Medium_)— A while back, the BBC published [moving BBC to the cloud](https://medium.com/bbc-design-engineering/moving-bbc-online-to-the-cloud-afdfb7c072ff), which was a high-level look at the BBC’s migration to the cloud. In this update, Johnathan takes us through some of the different choices and trade-offs the BBC had to make in order to meet the highly spiky workloads that the BBC was running.

[How much do AWS Exams Cost? Including All The Extras!](https://www.thedevcoach.co.uk/aws-certifications-cost/) _(Lou Bichard, Dev Coach)_ — I’m on a real careers/exams writing hype at the moment, going through lots of cloud questions about exams and career paths. In this article, I dig into the different costs associated with taking an AWS exam. I don’t mean just the cost of the exam itself, but also the cost of the different extra’s, membership courses, practice exams, etc. It’s a pretty lengthy rundown of your options and should give you a good overview of the costs.

[Writing Runbook Documentation When You’re An SRE](https://www.transposit.com/blog/2020.01.30-writing-runbook-documentation-when-youre-an-sre/) _(Taylor Barnett, Transposit)_ — Runbooks are one of the many pieces in the puzzle of doing incident management and operations. But, runbooks can be a dance with the devil, as you want to capture things like easy to run queries, links to useful other docs, or infrastructure. But in reality, you also want to automate away any remediation so that manual intervention isn’t necessary.

[Making retries safe with idempotent API’s](https://aws.amazon.com/builders-library/making-retries-safe-with-idempotent-APIs/?did=ba_card&trk=ba_card), [Fairness in multi-tenant systems](https://aws.amazon.com/builders-library/fairness-in-multi-tenant-systems/?did=ba_card&trk=ba_card) & [Avoiding overload in distributed systems](https://aws.amazon.com/builders-library/avoiding-overload-in-distributed-systems-by-putting-the-smaller-service-in-control/?did=ba_card&trk=ba_card) (_AWS Builders Library_) — Whilst I’ve not had a personal chance to get through these (you need to read them with a pen in hand!) the newsletter would be amiss if I didn’t mention them, as the AWS builders’ library articles are always worth a read.

## Opinion Pieces / Miscellaneous 

_Cloud commentary and spicy takes!_

[The Career-Changing Art Of Reading The Docs](https://acloudguru.com/blog/engineering/the-career-changing-art-of-reading-the-docs) _(Forrest Brazeal, ACloudGuru)_ — Maybe the blog title doesn’t entice you straight away, but believe me, the topic is great. And as always, very engagingly presented by Forrest. If you’ve ever wanted to become, or wondered about how AWS heroes get to become AWS heroes this article might give away some insights. In the article Forrest Brazeal dives into his take on why [RTFM](https://www.urbandictionary.com/define.php?term=RTFM) is such an important but overlooked concept that you need to know and appreciate to help achieve your own career and tech aspirations. I really like the idea, despite how (almost hilariously) primitive it sounds, and it’s something I’ve now started doing myself. Just spending some time orienting yourself in the docs, seeing the patterns, understanding the layouts helps you to find things faster in the future. The timing for me was quite amusing, as I had already quoted Forrest’s previous thread on reading the docs in [best resources for AWS certifications: an extensive & opinionated guide (so you pass the first time!)](https://www.thedevcoach.co.uk/aws-exam-best-resources/).

[Work On Your Lambda Functions, Live!](https://dev.to/aws-builders/work-on-your-lambda-functions-live-51cp) _(Frank Wang, DEV.TO)_ — Frank shared this article in the [AWS community builders](https://aws.amazon.com/developer/community/community-builders/) forum and it caught my eye. Whilst it’s very early days for the tool, I still thought it was unique enough to warrant sharing. The idea is simple: AWS Lambda development experience using the ideas of hot-reloading. Personally, I think coding against mocks is the best approach for developing software in the environment of integrated cloud, but I’m very open to the idea of different developer experiences, and this one could become another string in your bow for local development of serverless functions.

[Why I’ve Been Merging Microservices Back Into A Monolith @ Invision](https://www.bennadel.com/blog/3944-why-ive-been-merging-microservices-back-into-the-monolith-at-invision.htm) _(Ben Nadel, His Blog)_ — The explosion of microservices happened a few years back. Speaking out against microservices in many cases is deemed heresy. In this article, Ben talks about why he’s been busy merging some of their smaller services back into bigger ones.

[Serverless Adoption: Is Cost Still The Main Factor?](https://towardsdatascience.com/serverless-adoption-is-cost-still-the-main-factor-c5e910cf8b12) (_Sheen Brisals, Medium_) — Anyone who claims to do accurate cost-estimation of cloud services is (quite frankly) selling snake-oil. There’s just too many additional factors over time that come into play: cost of logging services, security services, networking costs, the cost of moving data. Yes, you can take precautions to your cloud cost, and do your research, but it’s also a lot like “test in production”, eventually it becomes about observability of your cloud cost, rather than upfront estimation.

[RefinementCodeReview](https://martinfowler.com/bliki/RefinementCodeReview.html) (_Martin Fowler, Own Blog_) — Anyone who knows me, or works with me, knows that I’m bullish (but not zealot-ish) on practices of continuous integration (in the pure sense of the word), test-driven development, mob programming, and generally most of the ideas that spawned out of XP. In this article, Martin talks about the pervasive nature of teams to center their refactoring efforts around code reviews themselves. The summary of the article is: _“If I have a pristine mainline, and ensure that every commit merged into that mainline is pristine – can I be sure that the codebase is still pristine after six months? I’d argue that I can’t”._ The answer? Periodic code review, mob programming, collective code ownership.

[Errors Are Not Exceptions](https://dev.to/swyx/errors-are-not-exceptional-1g0b) (_Shaun Wang, DEV.TO_) — I generally keep the newsletter on the cloud side of cloud software engineering. But for this article, I make an exception (pun intended). I know that Shawn is currently learning Go, and he has [bumped into the opinionated nature of go’s error handling](https://golang.org/doc/faq#exceptions). This is an interesting read on the distinction between errors and exceptions, I won’t spoil it, you’ll have to read the article. The topic of errors is something near to my heart, and I’ve also dug into it in the past in: [a philosophy for effective error handling](https://www.thedevcoach.co.uk/error-handling-javascript/).

[8 DevOps YouTube Channels Worth Following](https://dev.to/microtica/8-devops-youtube-channels-worth-following-3m9k) (_Sara Miteva, DEV.TO_) — Keeping up-to-date can be a pain, switching the mediums in which you learn: reading, podcasts, videos, audiobooks, can help. In this article, Sara goes through 8 different YouTube channels that you might like. I got a few more on my list, so you might do too!

## Outages / Breaches  

_What went down or got hacked?_

[Robinhood](https://www.vice.com/en/article/v7mqe9/robinhood-goes-down-under-gamestop-stock-rush) — Unsurprisingly, Robinhood the trading app went down during the gamestonks madness of this month. Yet, with only minor hiccups, [Reddit](https://reddit.statuspage.io/history) managed to stay up.

## Personal Updates 

_What I’ve been up to over the past month._

I’ve recently been having a lot of fun [posting over on Instagram](https://www.instagram.com/thedevcoach/). I’m sharing a lot of the behind-the-scenes stuff on there, such as how I write articles, how I drive traffic, where I syndicate content to, how I choose my articles, you name it, if I have a “secret” I’m giving it away on there. I’m also experimenting with [YouTube](https://www.youtube.com/channel/UCAklaE5D59xWtip-3Jwa7xA), but I want to work out some kinks before I share things more widely.

## See You Next Month 

And that’s all for this months newsletter, thanks for tuning in! If you could spare just a few moments to take this short [survey](https://thedevcoach.us15.list-manage.com/track/click?u=1a0680454e8c66bf2eb8d36b0&id=9c72247a34&e=5155acad02) you’ll help me out to understand more of what’s important to you.

Speak soon Cloud Engineering friends!

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The post [Cloud Software Engineering Newsletter #20 (January Re-Cap 2021)](https://www.thedevcoach.co.uk/cloud-software-engineering-newsletter-20/) appeared first on [The Dev Coach](https://www.thedevcoach.co.uk).