CatOps

14 Mar 2024 12:17

The core idea of this article is pretty simple: you need to protect your Terraform states. I don't think this is a debatable topic, and anyone has a different opinion on this matter.

To quote the article itself:

 an attacker can modify the Terraform state file it’s game over and bad times ahead.

CatOps

12 Mar 2024 09:30

After reading this good retrospective article, I can say for sure:

#git is fine.

CatOps

09 Mar 2024 16:21

A bundle of programming books by “No Starch Press” on Humble Bundle.

#books #programming

CatOps

07 Mar 2024 20:20

I know that many folks have a mix of corporate and private repositories on their laptops. By private, I mean their small projects, dotfiles repo, forks of public repositories, etc.

Here's an interesting guide on one of the ways of how to keep separate users (email, signing key, name) for different repositories.

This would also work if you have repositories backed by different provides. For example, if you need to push to both GitHub and GitLab and use different SSH keys for that.

Here's a condensed version of this article on StackOverflow.

#git

CatOps

04 Mar 2024 19:29

​​I got a bit distracted in the recent days, so I make posts with delays.

Today we have a Donations Monday with a twist.

We are raising funds for two foundations at the same time:

- For NayTak for camouflage nets.
- For UA Responders an IVL and a defibrillator for medics from Kraken.

The twist is that you can win a remnant of an S-300 rocket (on the picture).

Every donation for >50 UAH is a chance to win!

You can donate on:

- a Monobank jar: https://send.monobank.ua/jar/5SizeGGzBM
- top up the card directly: 5375 4112 1191 0851

Please, add your contact details if you don’t use MonoBank for donations, so they know how to find you in case you win.

P.S. Tomorrow I will send a new nesletter issue, that I should’ve sent yesterday.

#Donations #Ukraine

CatOps

29 Feb 2024 17:55

S3 cache for GitHub Actions - a drop-in replacement for the native GHA cache functionality that is technically unlimited because of S3.

I haven’t used it personally and I don’t have an AWS account to test it. This thing comes as a part of RunsOn - a solution to setup your self-hosted runners for GHA in AWS.

Might be worth checking if you want to bring your own worker nodes to GHA but don’t want the hustle configuring them.

#github #gha #cicd

CatOps

26 Feb 2024 16:08

​​For today’s Donations Monday I would like to remind you about pavlobondarenkopaypal/support-ukrainian-army-with-and-da077ccda388">Pavlo and Naya, who raise money on drones and telecommunication equipment.

P.S. Here’s a photo of a drone you helped to buy last week and it’s already on its way to the place.

CatOps

23 Feb 2024 15:34

Some time ago I had a task to split the helm template output into separate files per object.

So, I found this issue in the Helm’s repository. People were suggesting using AWK for that, but that didn’t work well for me at the time, so I opted out for YQ.

A couple of days ago someone left a comment to that issue that apparently there is a tool called Kubesplit that can do exactly that. So, feel free to use it if you need to achieve something similar to what I did.

#kubernetes

CatOps

20 Feb 2024 10:50

Linux Foundation has some discounts for its courses and certifications till the end of February. Including Kubernetes, ArgoCD, and Istio certifications.

They are still not cheap, but you can save up to 50%, which is nice.

#kubernetes #training #courses

CatOps

18 Feb 2024 19:55

A new issue of the CatOps digest is here! You can find it via:

https://newsletter.catops.dev/p/catops-digest-2024-02-18

#digest #newsletter

CatOps

16 Feb 2024 13:06

Friday is a great day to listen to our latest voice chat!

This time we have discussed what would be the next big thing in operations. And of course, the whole conversation was very AI focused.

You can find the latest episode on:

- YouTube
- Spotify
- Apple Podcasts
- Google Podcasts

#voice_chat #ai

CatOps

14 Feb 2024 14:45

An overview of the progressive delivery principle by Buoyant.

There's also a comparison between Flagger and Argo Rollouts, which are probably the most famous (if not the only) tools designed for progressive delivery.

Now, Buoyant is the company behind Linkerd. So, obviously, their examples are based on Linkerd. However, you don't need any service mesh to adopt this technique. Service mesh will only help you with smarter traffic splitting.

Also, there's an error in this article: it claims that Flagger works with existing deployments, while Argo Rollouts requires its special CRD, which is only partially true. Argo Rollouts can also work with existing Deployment objects. So, in these regards, both tools are the same.

If you prefer a video format, I would also suggest watching a talk about progressive delivery by Carlos Sanchez at Fosdem 2024. There you can see Argo Rollouts in action.

#cicd

CatOps

12 Feb 2024 12:53

​​For today’s Donations Monday I’d like to remind you about Pavlo and Naya, who raise funds for drones and some telecom equipment for our defenders.

Now they have a neat page with all the requisites in one place.

#donations #Ukraine

CatOps

06 Feb 2024 10:51

A delayed CatOps Digest is out!

You can find it here:
https://newsletter.catops.dev/p/catops-digest-2024-02-05

#digest #newsletter

CatOps

04 Feb 2024 10:02

​​Today a new issue of CatOps Newsletter should’ve come out. However, it’s delayed for reasons.

P.S. If you’re attending Fosdem/CfgMgmt Camp, let’s meet for coffee!

CatOps

13 Mar 2024 15:30

A new episode of our voice chat (in Ukrainian) is here!

We discussed OpenTofu and Terraform's license change in general and tried to find people, who already migrated to the new tool.

The episode is available on:

- YouTube
- Substack
- Spotify
- Apple Podcasts

#voice_chat

CatOps

11 Mar 2024 14:09

For today’s Donations Monday I want to remind you that a fundraiser from Come Back Alive for the Ukrainian snipers is still ongoing.

You can support it via this link: https://savelife.in.ua/sniping/

#donations #Ukraine

CatOps

08 Mar 2024 17:38

​​On behalf of the Architecture Stage organizational committee I want to invite you to the DOU Day Conference!

It’ll take place offline in Kyiv on the 18th of May.

The thing is that if you buy a ticket now, you will get -50% off for the second one. So, a great opportunity to grab some tickets together with your teammates.

#event

CatOps

05 Mar 2024 19:33

A new issue of the CatOps digest is here!

I know it’s not Sunday today, but better late than sorry.

https://newsletter.catops.dev/p/catops-digest-2024-03-05

#digest #newsletter

CatOps

02 Mar 2024 16:12

Kubernetes: tracing requests with AWS X-Ray, and Grafana data source is a step-by-step guide on how to setup tracing in your EKS cluster using AWS X-Ray by Arseniy Zinchenko - a member of the Ukrainian DevOps community.

Also, make sure to subscribe to his Substack! He posts new things quite often and I have no idea where does he find time and willpower to do so 😅

#aws #kubernetes #observability

CatOps

27 Feb 2024 14:22

Resend had a 12 hour outage on the 21st of February.

tl;dr:
> The database migration accidentally deleted data from production servers…
> … we performed a database migration command locally, but it incorrectly pointed to the production environment instead…

You can read it in more details is the article, but here are some of the action items from this postmortem:

- No accessible user role should have write privileges on the production database.
- Improve local development to reduce risks related to database migrations.
- Create redundancy to preserve sending function even during a database outage.
- Increase cadence for disaster recovery tests.
- Implement incident banner on Resend dashboard to inform users quickly.

So, I dunno, check your database. Maybe, you have such a risk as well.

Also, it’s kinda strange that people rarely talk about network isolation not only between their production and non-production environments, but also between their local environment and production. Make production access conscious. Put it on a separate role/VPN. Add some friction accessing it.

Moreover, for the love of god, validate your DB backups.

#postmortem #databases

CatOps

24 Feb 2024 10:13

Today marks the 2 year of the russian full-scale invasion of Ukraine.

Today there are going to be rallies in many cities around the globe.

You can find the list here:

https://ukrainianvictory.org/publications/announcement-pro-ukrainian-rallies-marking-the-second-anniversary-of-the-russian-invasion-updated/

Go there, take your family, take your friends, take your colleagues.

Remind you local politicians that war is not over and that there would be no peace in this world until ruzzia exists!

CatOps

21 Feb 2024 15:55

For you to know: the full Kubernetes CKS (certified security specialist) is available on YouTube. There are both theory and practice, but obviously you will need to take the exam separately.

#kubernetes

CatOps

19 Feb 2024 14:04

A friend of mine is raising money for an FPV-drone Bomber Insomnia for defenders from the 119 separate brigade of Territorial Defence.

You can donate directly to this Monobank Jar: https://send.monobank.ua/jar/LmRuSA8dm

#Donations #Ukraine

CatOps

17 Feb 2024 09:30

​​AI, AI everywhere…

… we could say after checking Ben Evans's presentation, where he's exploring macro and strategic trends in the tech industry for 2024.

Or we can say that it's still too early and error-prone. Or that we are not sure what we want and what possibilities it provides.

In any case, that is a good analytic, so take your time if you'd like to understand the current state of AI and its near future.

https://www.ben-evans.com/presentations

#ai

CatOps

15 Feb 2024 11:36

You might have heard that the WeaveWorks has gone out of business.

Yet, they did a right thing and open sourced their GitOps Enterprise product, which previously was only accessible to the paid customers.

#cicd #gitops

CatOps

13 Feb 2024 15:52

​​There was an interesting talk at CfgMgmtCamp 2024 about non blocking code reviews.

The good thing is that there’s also an article on this topic from the author

The general idea is that not all the code changes require a code review, especially when there are enough safety nets configured.

As a result, smaller code changes simply sit there and wait for be reviewed, which may take some time, especially in a remote setup.

The solution is to allow such changes as they are and add them to a backlog of pending reviews.

There are more details in the article. Also, here’s a picture from that presentation that kinda captures the spirit of this idea.

#programming #culture #devops

CatOps

07 Feb 2024 12:11

Did you know that Isovalent (a company behind Cilium) has some amazing labs that can teach you about using Cilium, Hubble, and Tetragon.

The labs have multiple tracks, such as: platform, network, security, etc.

These labs also cover topics like the new GatewayAPI. Doing some of these labs tight now at #cfgmgmtcamp24 and love them so far!

#kubernetes #networking #cilium #ebpf

CatOps

05 Feb 2024 12:55

​​A member of our community raises funds for a Mavic 3t for his classmate who serves in the 110 separate mechanized brigade.

You can donate on the Monobank jar

Or on a card directly:

5375 4112 1440 4548

#donations #Ukraine

CatOps

03 Feb 2024 09:36

I’m a CLI guy. For me it was always easier to use good old commands like find and cd to navigate around. At some point I even memorized the flags of tar.

Thus, it is still much easier to me to use plain kubectl with a couple of plugins to navigate the clusters.

However, I know that many folks prefer graphical interfaces or at least some TUI. Also, I remember that a lot of folks were pissed when Lens split into a community and a paid versions.

So, today I want to share a new native Kubernetes desktop client - Seabird.

I haven’t tried it for the reasons I mentioned above, but you may enjoy it.

#kubernetes