Sysadmin Tools 🇺🇦
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Sysadmin/DevOps tools, news and other interesting things from modern IT world.
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Cloud-native application life-cycle orchestration.

Keptn automates your SLO-driven multi-stage delivery and operations & remediation of your applications. 

https://github.com/keptn/keptn

#k8s #kubernetes #orchestration
Forwarded from CatOps
Ok, folks. Now, it's my time to post a recap from Fosdem and Configuration Management Camp conferences.

You can find it on Substack or in my blog.

Also, I would appreciate it if you subscribe to my substack! I consider moving my writing activities there and keep the blog only as a markdown backup.

Unfortunately, I don't write that often, but hey, it's free to subscribe!

#slides #fosdem #cfgmgmt_camp #event
Kubernetes eBPF Traffic Analysis With Kubeshark: Must have tool for DevOps/SRE engineers

https://youtu.be/W5NF7eh7uHY

https://kubeshark.co/

#k8s #kubernetes #ebpf
hikaru

Move smoothly between Kubernetes YAML and Python for creating/updating/componentizing configurations. 

https://github.com/haxsaw/hikaru

#k8s #kubernetes #pulumi #terraform #python #yaml
Сьогодні вся країна вшановує памʼять Героїв Небесної Сотні.
Це нагадування про високу ціну нашої свободи і про цінності, за які ми воюємо.
Тоді, на зламі 2013-2014-го, українці зробили свій цивілізаційний вибір.
Прямо з Майдану тисячі добровольців одразу пішли на фронт. З 24 лютого 2022-го цей фронт розтягнувся на понад 3000 км. Але нас це не злякало. Ми продовжуємо боротьбу.
І ми переможемо.

@CinCAFU
Introduction to Linux – Full Course for Beginners

https://youtu.be/sWbUDq4S6Y8

#linux #howto #course
Forwarded from Zelenskiy / Official
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24 лютого мільйони з нас зробили вибір: не білий прапор, а синьо-жовтий стяг. Не втеча, а зустріч. Зустріч ворога. Опір і боротьба.

Це був рік болю, жалю, віри та єдності. І це рік нашої з вами незламності. Знаємо, що це буде роком нашої з вами перемоги!

——

On February 24, millions of us made a choice. Not a white flag, but a blue and yellow flag. Not fleeing, but facing. Facing the enemy. Resistance and struggle.

It was a year of pain, sorrow, faith and unity. And this is a year of our invincibility. We know that this will be the year of our victory!
🐧🏭 linux-factory

a framework used to create custom debian linux operating systems

https://gitlab.com/risserlabs/community/linux-factory

#debian #linux
Forwarded from DevOps&SRE Library
PEoCR.pdf
456.6 KB
Performance Evaluation of Container Runtimes

The co-location of containers on the same host leads to significant performance concerns in the multi-tenant environment such as the cloud. These concerns are raised due to an attempt to maximize host resource utiliza- tion by increasing the number of containers running on the same host. The selection of a container runtime becomes critical in the case of strict performance requirements. In the scope of the study, two commonly used runtimes were evaluated: containerd (industry standard) and CRI-O (reference implementation of the CRI) on two different Open Container Initiative (OCI) runtimes: runc (default for most container runtimes) and gVisor (highly secure alternative to runc). Evaluation aspects of container runtimes include the performance of running containers, the performance of container runtime operations, and scalability. A tool called Touch- Stone was developed to address these evaluation aspects. The tool uses the CRI standard and is pluggable into any Kubernetes-compatible container runtime. Performance results demonstrate the better performance of containerd in terms of CPU usage, memory latency and scalability aspects, whereas file system operations (in particular, write operations) are performed more efficiently by CRI-O.
A stupid game for learning about containers, capabilities, and syscalls

https://contained.af

https://github.com/genuinetools/contained.af

#container #docker #podman #containerd