A new issue of the CatOps Digest is here!

#digest #newsletter

​​For today’s Donations Monday I would like to remind you about Pavlo and Naya, who raise funds for AFU since the start of the full-scale invasion. Their this week’s goal is 310974 UAH .

- Pavlo’s requisites
- Naya’s requisites

#donations #Ukraine

O’Reilly is being on a streak now!

Right after the Software Architecture book bundle, we’ve got the Cybersecurity Month bundle!

As usual, you can pay different amount of money to unlock different number of books. But still, the whole amount is probably less than the individual price for some of the noscripts.

#books #humblebundle

Death by a thousand microservices.

You can consider it to be yet another “old tech guy yells at cloud” article, but it has ratio in it.

Yet, I wouldn’t say that we have to throw away the whole idea of distributed systems. Distributed systems is the reason why I still have a job!

So, I would rather read this piece as a “memento mori” article, a reminder that we have to take things in moderation.

For example, there’s an idea of having a “trunk” monolith supported by a handful of additional smaller services. I know a company that does just that and you know what? They’re fine!

#friday #culture

A couple of days ago I got together with amazing people to record an episode of the DeadOps Show (in Ukrainian).

Initially we wanted to talk about the hero culture but somehow the conversation slipped into the topic of burnouts.

So here you are. Yet another episode about the thing that never gets old.

#podcast

​​The beginning a month is the time when you topically get charged for your subnoscriptions.

So, I am once again asking you to enroll in a monthly subnoscription to the Come Back Alive foundation.

#donations #Ukraine

Learn from memes is a working strategy!

Therefore, I’d like to share with you this article (quite a long one) that describes a Postgres meme.

So, you could learn its concept broken down by a “level of depths”.

#databases #postgres

The Guardian tells a story of their migration into AWS Aurora Serverless.

This article doesn’t go too deep into technical aspects, but provides a nice overview of the issues one may encounter when trying to move to Aurora.

A couple of things that I found interesting:

- Whatever cloud migration tools are there, pg_dump and pg_restore are your trusted friends.

- This paragraph:


We’re spending roughly $220/month for storage and compute for the database. For the same price we could have rented a db.m7g.xlarge (16GB RAM, 4 vCPUs) Postgres instance along with 100GB of EBS storage or a db.r7g.large (16GB RAM, 2 vCPUs) Aurora instance. I suspect both of these options would have done the job for us, and maybe not have suffered from the same cold start problems as our serverless database, but after 3 migrations, it’s probably time to get back to doing some feature work!


#databases #postgres #aws

​​With your help we managed to deliver 18 medical kits to the 27th Separate Bataillon!

We had a new request from them for the winter boots and a thermal vision. We had some money left from the previous fundraiser, so the winter boots are on their way to the frontlines already. Now, we are raising funds for the thermal vision!

The goal is 85k UAH (~2200 EUR). This is the price for the thermal vision, but we still have money left. So, we will “break” the Monobank jar as soon as we have the required amount from all the sources.

Also, we work together with the UA Responders foundation to be clear on all the legal stuff. So, you can also donate to their PayPal or SWIFT, since Monobank sometimes has issues accepting money from the EU cards. Please, put “27” in the message if you donate via PayPal or SWIFT, so we know that these money are meant for the 27th Battalion.

You can find all the requisites via this link: https://quicknote.io/145c93c0-6612-11ee-8acd-1fef365d67eb

Разом переможемо!

#donations

Let’s continue with Serverless. I Reviewed 1,000s of Opinions on Serverless is a collection of takes on Serverless. The author has collected and analyzed opinions on Serverless from Twitter (RIP), Reddit, Hackernews, ans other websites and broke them down into 3 categories: negative, positive, and neutral.

Tl;dr: as always, it depends. Serverless is no silver bullet. You have to architect your applications from ground up and choose tools fit for purpose - not jump on hype trains.

In any case though, there are some good comments about Lambdas and stuff in this article.

#serverless

​​I know that y’all want to hear about the cUrl vulnerability. So, here you are: a first hand article from Daniel Stenberg (the author of cUrl) himself.

I haven’t read it yet, tho.

#security #curl

For a bit longer than a week you can buy the Python Crash Course book from Humble Bundle with 45% discount.

I personally don’t use Python, but I know that it’s pretty popular in platform engineering. So, this offer may be interesting to you.

#books #programming #python hon

A new issue of the CatOps Digest is here!

Yes, I know that I skipped a week but I kinda had an excuse.

https://open.substack.com/pub/catops/p/catops-digest-2023-10-15

#digest #newsletter

Today I just want to remind you about this fundraiser

​​With your help we managed to deliver 18 medical kits to the 27th Separate Bataillon!

We had a new request from them for the winter boots and a thermal vision. We had some money left from the previous fundraiser, so the winter boots are on their way to the frontlines already. Now, we are raising funds for the thermal vision!

The goal is 85k UAH (~2200 EUR). This is the price for the thermal vision, but we still have money left. So, we will “break” the Monobank jar as soon as we have the required amount from all the sources.

Also, we work together with the UA Responders foundation to be clear on all the legal stuff. So, you can also donate to their PayPal or SWIFT, since Monobank sometimes has issues accepting money from the EU cards. Please, put “27” in the message if you donate via PayPal or SWIFT, so we know that these money are meant for the 27th Battalion.

You can find all the requisites via this link: https://quicknote.io/145c93c0-6612-11ee-8acd-1fef365d67eb

Разом переможемо!

#donations

Today, I'd like to share with you a series of articles that I currently read. It's called "Let's code a TCP/IP stack" and it provides a very nice insight into the Linux networking stack. I'm still going through all the articles but I'm sharing all of them here:

1. Let's code a TCP/IP stack, 1: Ethernet & ARP
2. Let's code a TCP/IP stack, 2: IPv4 & ICMPv4
3. Let's code a TCP/IP stack, 3: TCP Basics & Handshake
4. Let's code a TCP/IP stack, 4: TCP Data Flow & Socket API
5. Let's code a TCP/IP stack, 5: TCP Retransmission

#networking

Videos from DevOps Days 2023 are available on YouTube now!

#slides

The latest episode of our voice chat (in Ukrainian) is now available!

We spoke about documentation: where to store it, how to write it and how to make people read it.

You can find it on:

- YouTube
- Substack
- Spotify
- Apple Podcasts
- Google Podcasts

Enjoy!

#voice #говорилка

A comparison between EKS and AKS.

Tors article provides some insights into what to expect from each managed service. It’s a pity, GKE is not included into this comparison, I’ve heard a lot of good things about GKE. I believe, this is because this article originated from a specific use-case.

#kubernetes #aws #azure

​​For today's Donations Monday, I'd like to remind you about the Protect the Sky fundraiser by Come Back Alive and Nova Posta.

This is a very important fundraiser that helps Ukrainian Air Defence units.

#donations #Ukraine

Programming Book Bundle by Packt.

I don’t know if you do programming day-to-day. Also, this channel is more OPS oriented, I would say.

However, you may find some interesting stuff there.

#programming #books