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DevOps and other issues


Входит в категории: Технологии
CatOps
18.09.2021 17:09
It’s been 5 years since Envoy was open sourced. Therefore, Matt Klein (one of the creators of Envoy) published a longread with the retrospective of these years and the way Envoy made from an internal proxy in Lift to kinda default choice for cloud environments. This read may beinteresting for those who work on the open source tools in their companies as well as for the individual open source contributors. #oss #longread
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CatOps
16.09.2021 13:09
An article that saved me some time yesterday. Its about how to append custom paths to the $PATH variable on a GitHub Actions runner. As you may guess, its not simply $PATH. However, you can do it as below: - run: echo "${HOME}/" >> $GITHUB_PATH #cicd #gha
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CatOps
15.09.2021 11:09
Flame graphs is a powerful tool to visualize an application profile and spot narrow places in your codebase. Kubectl Flame brings this functionality as a frictionless kubectl plugin! Now, you can generate a flame graph from a running pod using just kubectl. Currently, it supports Java using async-profiler, Go using ebpf profiling. Python support is based on py-spy. Ruby support is based on rbspy. Also, since were talking about performance, here is a free-to-use Kubernetes Instacne Calculator, which helps you to calculate the optimal size of cloud nodes based on your resource requests and limits. #kubernetes #performance
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CatOps
10.09.2021 11:09
A humble bundle with books about Kubernetes from Pluralsight. As usual, you can pay €21.24 for 23 books, €17.64 for 13, or at least €1 for 7. The books in this bundle are practical guides for configuring different aspects of Kubernetes or setting up it on platforms like AKS. Personally, Im not a big fan of technology-specific books. This type of knowledge tend to become obsolete too fast these days. However, if you need hands-on manuals for Kubernetes right here right now, this could be a good choice. Also, Ive never read books by Pluralsight, but their online courses are nice. So, I think the books should also be good. #books
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CatOps
09.09.2021 15:09
Yet another list of tools, which ease Kubernetes operations. The majority of things in this list are not new and actually well-known across the industry. However, I found here a few interesting things I would like to take a closer look at. For example, Capsule for multi-tenant support and Kubevela - an implementation of Open Application Model (OAM). BTW, Open Application Model is a pretty interesting concept. I really need to write about it here more often. #kubernetes
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CatOps
08.09.2021 11:09
Unless you contribute to Terraform core, this wont be super relevant for you. However, this is a bit disturbing. Quote: Due to current low staffing on the Terraform Core team at HashiCorp, we are not routinely reviewing and merging community-submitted pull requests. We do hope to begin processing them again soon once were back up to full staffing again, but for the moment we need to ask for patience. Thanks! Source Kudos to HashiCorp for being explicit about it, though! #hashicorp #terraform
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CatOps
07.09.2021 12:09
There were a lot of culture posts here lately, but no worries were still in the engineering domain! So, today I want to share a neat detective/mystery story abut ZFS by Brendan Gregg. Its called "ZFS Is Mysteriously Eating My CPU" and I wont add any more details here to keep the suspense. Enjoy! #performance #linux
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CatOps
06.09.2021 13:09
A magnificent write-up by Tanya Reilly about doing glue work! Its such a shame I havent read and shared this piece earlier! So, basically whats glue work? Its about enabling others, picking up loose ends in your organization, etc. Usually, this is non-promotable work, i.e. not under your direct responsibilities. However, this is also usually a crucial work which helps your organization to move forward. In this article Tanya argues that even though such work is inevitable, moreover expected, on senior and staff-plus positions; doing a lot of glue can be harmful during your early stages of career. There are a lot of things to think about after reading this one. For example, I have revisited my opinions on Personal Development Plans personally. Previously, I thought this can be easily replaced by personal OKRs, but now I realize that PDP is a meaningful way to work with your manager and agree on which types of work are expected and, the most important, promotable in your current stage of career. Very good read, much recommend! #culture #career
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CatOps
02.09.2021 17:09
Today at 17:00 UTC we are going to have our usual voice chat (in Ukrainian and Russian) to discuss the topics, youve proposed and voted for in the chat, which follows the DevOps Days Open Spaces format. Today we are going to talk about "DevOps buzz-words" and how to provide meaningful feedback to your peers. As usual. We will start from these topics and then if the discussion drifts, it drifts. You can join the voice chat via this link: https://t.me/catops_chat?voicechat Hear you there! UPD: Voice charts are in Ukrainian or Russian language #event
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CatOps
02.09.2021 13:09
There might be a few engineering managers on this channel. So, here is an awesome engineering management list. However, it also contains some things that might be interesting for engineers like risk management, capacity planning as well as the list of calendar software, time trackers, etc. #management
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CatOps
31.08.2021 18:08
Ok. Thats interesting. Docker is updating their pricing model once again and here is the interesting part: At Docker we remain committed to continuing to provide an easy-to-use, free experience for individual developers, open source projects, education, and small businesses. In fact, altogether these communities represent more than half of all Docker usage.  Docker Personal and all its components – including Docker CLI, Docker Compose, Kubernetes, Docker Desktop, Docker Build/BuildKit, Docker Hub, Docker Official Images, and more – *remain free for these communities*.  Specifically, small businesses (fewer than 250 employees AND less than $10 million in revenue) may continue to use Docker Desktop with Docker Personal for free. The use of Docker Desktop in large businesses, however, requires a *Pro*, *Team*, or *Business* paid subscription, starting at $5 per user per month. Im still not 100%, but it sounds like you wont be able to use Docker Desktop on you corporate laptop starting from 31st January 2022 if your company is "big enough". Heres a Twitter thread by Corey Quinn on this issue. #docker
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CatOps
31.08.2021 13:08
An opinionated list of the books on distributed systems and system design. Many of those books are well-known, but a few of them were new to me. So, I hope you can find something interesting for you there as well! #books
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CatOps
30.08.2021 18:08
Two day ago was HUG Kyiv #12, and here is record and slides (links in description) Enjoy! #slides
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CatOps
29.08.2021 15:08
A blog post by Charity Majors about why you should ask Ops questions when interviewing software engineers. In short, we all are responsible for the stability of our systems as well as encouraging good practices of deploying, releasing, observing software, etc. Therefore, its not enough to just have an SRE team and push that burden on them. Reliability and operations should be a concern for any team within a company. Quote: Our industry has gotten very good at pressing operations engineers to get better at writing code, writing tests, and software engineering in general these past few years. Which is great! But we have not been nearly so good at pushing software engineers to level up their systems skills. Which is unfortunate, because it is just as important. #culture
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CatOps
28.08.2021 16:08
CNCF is creating a new working group around "Cooperative Delivery". Here is a part of the problem statement this group is trying to address: In most app-delivery scenarios, the packaging format and delivery mechanism of the application artifacts are targeted, but not necessarily the apps infrastructure dependencies such as data stores and message queues. That is, application and infrastructure delivery are not coordinated. Often, applications are heavily dependent on infrastructure resources that are not directly linked to a specific deployment, and therefore problems with non-existing infrastructure resources might cause deployments to fail. In addition to this, the application and infrastructure lifecycles are not synchronized, creating additional complexity and challenges when delivering workloads. The goal of this group is not to provide a definitive solution, rather gather the information in the industry on how people are doing "cooperative delivery". Which trends are there. Are there any emerging approaches, etc. Itll be very interesting to see their findings. Struggles with application bundling is something I encounter personally and I believe a lot of other engineers do. #culture #cncf
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