Kubernetes introductory material

Hello everyone,
last few years I spend in development for cloud native applications on kubernetes. During a job interviews I was shocked how little people know about fundamentals. Now I am not taking about Kubernetes administrations. I would be pretty interested what you think is a mandatory and good to know. Desparetly waiting for your feedback

https://jakubstransky.com/2021/11/05/4-devs-kubernetes-interview-question-made-easy/

https://redd.it/qn6y1v
@r_devops

How does one get live production experience?

Hey there I work as a Private server tech support and this current place will not let me go to anything devops related so I've been interviewing for the past 4 months or so. Most of the times my profile is good but I get screwed with the "You don't have production experience". Sometimes I do feel the skill gap and that is quite valid I haven't gone through different scenarios at my current job.

In these 4 Months I've been studying Cloud, CI/CD, Kubernetes, terraform, Ansible, and I'm following the roadmap.sh/devops guide. I have a small homelab to learn all this stuff everything I do I write about it or put it on github.

All the jobs here have moved to DevOps roles or SRE roles.

Even certs won't get me experience, so what should I do now to prove that I can do the job? Any guidance is appreciated.

https://redd.it/qnya98
@r_devops

Too many buzzwords and tools for devsecops - share what is important and implemented in your org

Static code analyzer - sonarqube, gitlab, fortify analyzer
Dynamic analyzer - fortify web
Container security - aquasec, snyk
.......alot more which claimed they can provide better scan.

Is that overrated or real protection?

https://redd.it/qndzkp
@r_devops

Visualizing and filtering logs from papertrail/easy logging solutions?

Hi everyone,

I've been tasked with improving logging for my company - currently we use papertrail, which is fairly limited when it comes to filtering and visualizing server data. I've been trying to set up an ELK stack (elastic search, logstash, kibana) but running into a ridiculous number of errors. I was wondering if there's an easier solution to transforming logs from papertrail into another service for filtering and visualizing server data? Or, an alternative that is easier to setup than ELK?

Thanks

https://redd.it/qnm0bb
@r_devops

I've been reading through some top threads and asking questions. It's hard to understand what you guys do. What foundational skills are needed coming from closer to a senior level of full stack development? (Here's my list so far and plan)

I've been hovering around this sub for a week or so and trying to watch intro courses on YouTube and I have to say it's harder and harder to understand what you guys do by just watching you guys. Some of the top threads on this sub are mostly complaining about shifting knowledge requirements, burn out from learning, and never being able fully learn one thing due to the release of new tools. So I guess my question here is how does someone at least get to a foundational point?

Here is what I can personally do with a weakness in this stuff: I can load balance a bunch of AWS EC2 instances, use AWS code pipeline for some continuous integration, setup an SSL certificate, and HTTPS. That's the basis of my skills. It's not a lot, but it's something.

What I'm looking at learning is:

Basic Docker
Docker Compose
Getting better with Linux
Clustering a bunch of Raspberry Pi 3s together
Networking
Package managers
Proxy/ Reverse Proxy servers
Kubernetes
Github Actions for CI
Terraform (Even though I have a weak concept of cloud computing)
Cloudfront (It's brought at my work all of the time)
NGINX or APACHE


Is there anything else foundational that would prepare me for this job or am I totally missing the mark here?

Skippable Context

For more context right now I'm working on my frontend dev weaknesses at the company I work for and I intend to either get into ops either with this company or another for a year with the ultimate goal of becoming a real mythical senior full stack developer. Maybe even get too CTO in a startup and go for the millions to retire from this industry altogether. Worst case, I'm in a comfortable enough position skills wise that I can weather out any recession coming and get so far ahead of those crash course javascript developers that I'm always in demand.

https://redd.it/qo7gnr
@r_devops

What's one tool or programming language that refuse to list on your resume despite having experience with it, out of fear of having to work with it again?

My own examples: regex, fluentd.

https://redd.it/qocpqh
@r_devops

What are the most important skills that you need to have if you are considering to move from IT generalist to DevOps

I have been working in IT for quite a while (12years or so) and currently considering moving toward DevOps. Can anyone suggest on what to focus and what are the most important technologies that I should get familiar with.

https://redd.it/qobz7j
@r_devops

Do devops positions ever get RSUs as a part of compensation?

I have a friend who works at a FAANG company as a software engineer who has a very high Total compensation. Our base salaries are very similar, but A majority of his compensation are payouts from REstricted stock units. Basically he gets around 45k once a quarter. This got me pretty motivated to try to get a position with a company that offers RSUs, but our positions are different and it got me wondering if RSUs are typical for devops type positions?

https://redd.it/qogi7z
@r_devops

Overview of state of tech

Hey, y'all! I'll be switching to an SRE role in the near future, and I'd like to brush up on commonly used tech. I'm already familiar with some tech (Terraform, Consul, and K8s), but I see a lot of other tech I don't know much about about. Some examples of stuff I wanna learn more about are Helm, Argo CD, Crossplane, and Prometheus.

Do you know of any articles that give a cursory summary of infrastructure tech? The what, why, and when. Thank you so much!

https://redd.it/qoai4q
@r_devops

How realist is it to get a DevOps job with visa sponsorship in California?

I live in the UK but next year I’d like a change of scene - somewhere English speaking, a city a buzz, a friendly culture, bit more of an outdoorsy lifestyle and decent job prospects. I bounce between the idea of moving to Vancouver, Melbourne and the SF Bay Area, thoughts so far are:
- Vancouver’s right at the feet of the mountains and east to get a visa, but it’s tiny compared to London
- Melbourne’s easy to get a visa, and a big city, but not much outdoorsy stuff.
- SF bay has the mountains and beeches, plenty of people and the most exciting companies to work for, but it sounds pretty tough to get a visa for.

My profile is that I have a couple years experience as a DevOps engineer and a couple more as BA before that. I passed my CKA. I’ve been promoted quickly, relative to my peers and feel pretty confident in my ability. I have a degree, but not computing.

Based on my profile, how likely is it I’d be able to get a DevOps job with visa sponsorship in California? Before I sink time into applications etc. Does anyone have anything to say on Vancouver or Melbourne too?

Thanks in advance! Really appreciate if people taking the time to share their thoughts

https://redd.it/qoakxx
@r_devops

New to testing and deploying apps into Kubernetes? Try my new LinkedIn Learning course: “Kubernetes: Your First Project”!

https://www.linkedin.com/learning/kubernetes-your-first-project

Introducing developers into Kubernetes is one of the biggest parts of my job. I’ve noticed that many devs new to Kubernetes have struggled with grokking the fundamentals, like creating local clusters to test with, deploying apps into it, and testing that things are working.

This happened often enough to motivate me to create a course that walks people through doing exactly these things!

My course is called “Kubernetes: Your First Project.” It guides developers through deploying a simple website onto Kubernetes. In the course, I walk through the basics of how Kubernetes works. I then guide users through containerizing their website and running it, from Docker, to a local Kubernetes cluster inside of KinD, to a real Kubernetes cluster with EKS. Finally, I demonstrate how to package the website as a Helm chart as an alternative to deploying raw YAML manifests.

Give it a try! I hope you enjoy it as much as I did creating it!

https://redd.it/qn9uk3
@r_devops

visual diagrams of chef.io recipes

Hi, i want to know if there is some way to get a visual diagram os the recipes or roles or enviroments that we have in with chef in my company. I'm new with chef and sometimes i get lost with so many recipes or roles...
thnks \^\^

https://redd.it/qn9gcu
@r_devops

Port scanner with a stateful backend?

Hello all,

I've been tasked with implementing a port scanner that receives a continuously updating list of IPs as input and the output is stored in a DB. Then each record should have an "approved" or "OK" flag.

This would run once a day.

Anyone is familiar with such tool before I start building one from scratch?

​

Thanks,

https://redd.it/qmul2d
@r_devops

How did you know you want to be DevOps?

Hello everyone. I've been lurking this sub for a while, even though I'm not a DevOps engineer, but I got an opportunity that made me want to consult my career choices with you guys.

I'm 26. After my military service I started working as Helpdesk in a medium tech company. I fell in love with the role and developed my skills from there. I reached a point where my manager and colleagues had enough trust to let me do pretty much whatever I want. I started scripting real quick and automated a bunch of tasks in our environment (VM deployment, on/off boarding for employees, etc).

After 3 years at that company, I parted ways with them in favor of a sysadmin role at a FAANG company. I've been working here for almost a year now and it has been great for the most part. I feel a lot more confident in my troubleshooting skills, Python scripting and my cloud knowledge went from zero to novice.

It feels weird to say, because I'm young and inexperienced, but after almost a year at this role I reached a point where I struggle to find new topics that interest me. By no means am I an expert in my field, but over the last few months, I found that I mostly have fun when I'm working on some scripts. Some of them were big projects that I got major kudos for and some of them are just "nice to have"/"quality of life" kind of automations.

Fast forward to today. One of the past DevOps engineers that was in my team (we're a team that consists of sys, network and devops admins/engineers), offered me to join the company he's working at today. The role would be a DevOps engineer and he emphasized how fun it could be for me to not deal with sysadmin stuff anymore, only pure DevOps. He also mentioned how they work with the latest and greatest tools when it comes to IaC, CI CD, etc.

Other than automating stuff with Python / Powershell, I never really learned anything DevOps related, which is also something he mentioned. He said that during our time together at said FAANG company, he saw that I had potential to learn and that they're fine to teach me whatever is needed to fit the role.

Everything about it sounds very cool, but I have a passive personality and don't really know what I want to do in the future. I like IT, and it feels like I can pick up IT related subjects pretty quickly, but when it comes to DevOps, it's like gibberish to me. Whenever I snoop around DevOps related fields it always sounds like being drowned by yaml files, picking up new technologies on almost a monthly basis, working around the clock, etc etc. I know it very much depends on the role and the company, but I can't help but be a little afraid.

How did you know you want to do DevOps? How do people change career paths without knowing what's on the other side?

I really feel like I got a chance here that people don't normally get. From social media I figured that DevOps is so hot right now that everybody is trying to become one, so I'm afraid to miss out.

Sorry for the long post.

Thanks :)

https://redd.it/qoo6py
@r_devops

Making a side income

Hey guys. I am living in Greece and working as a DevOps with previous linux sysadmin experience and backend developer in Go(although programming is my least experienced field).

The pay is decent for Greece(lowest wage is 540 euros and i make 1400).

But overall compared to the living expenses(rent for a decent house for a couple starts at 500 in the worst Areas in Athens which is literary the lowest wage). My soon to be wife is on the lowest wage kind of jobs(she is a librarian that can't find a job as one so she works to w/e else she can find at times).

So thinking about our future, kids and expenses i am trying to figure out what i can do as a side thing to make some more income.

So i would like to ask you guys, if you are doing this kind of thing how do you do it? Hosting services? Consulting? Where do i even start from? Are there any decent portals that i could take over some projects and get paid for them?

Ofc another thing would be to just hunt down a few more certs and expertise and look for another job. But i made the switch to this company for a 400 raise 6 months ago. So i don't feel like this is the correct route for now.

Thanks to anybody that will share his experience! :)

https://redd.it/qool5l
@r_devops

Deep dive into setting up podman & docker-compose on MacOS video

With Docker announcing its subscription model many started looking for alternatives. podman is strong open source contender in the container management space and not only for compatibility reasons.

In this video (Part 2 of 2), I continue the tests started in Part 1 by testing podman's compatibility with docker-compose. It was not easy getting those 2 to work together and even the end result was not 100%.

Did anyone manage to get better results?

https://www.youtube.com/watch?v=5Tv52d4FNtA

https://redd.it/qorjk6
@r_devops

Understanding Kubernetes in a visual way

Kubernetes is a complex technology and ecosystem. In the past months I published a serie of sketchnotes about Kubernetes: "Understanding Kubernetes in a visual way".

The serie is available on https://dev.to/aurelievache/kubernetes-sketchnotes-pods-4ib0

And also in book format: https://gumroad.com/aurelievache

I've also published a serie of short videos mixing illustrations and speech:
https://youtube.com/c/AurelieVache

What do you think?

https://redd.it/qokxlf
@r_devops

Aborting Docker Compose when there is 2 or more services returning exit code

I have 2 services that returns an exit code (migrate and test). Migrate will always exit first, followed by the test service. I have tried something like:

docker-compose -f docker-compose.test.yml up --build --exit-code-from test

This however does not work. I was hoping that the command would wait until the test service is finished, then abort. Is there a solution in which I can abort after the test service exits?

https://redd.it/qn2ivl
@r_devops

Learning CloudFormation and GitOps

In your experience, how much time take to work in intermediate level with CloudFormation and use it with Git with confidence. I know that it depends on my skills and experience with both tools. But supposing that my level is beginner.

https://redd.it/qoxqer
@r_devops

LOCAL + CLOUD CI/CD

An idea I have been toying with lately is local CI/CD pipelines in Docker containers to reduce the time it takes to get feedback about runs. For example, quicker static analysis of code and engineers passing quality gates before even committing locally.

I've thought I could just use Makefiles. However, this could potentially lead to "it works on my machine" issues and means maintaining two (or more) files.

I've seen AWS CodeBuild and GitLab both have local CI/CD versions.

Has anyone implemented something similar before? Any advice that could be offered as to alternative products to research and pitfalls?

https://redd.it/qow4cu
@r_devops

When would you start transitioning from monolith to microservices?

If you already have a monolith in production everything on one server on one os, when would you see the need to start the transition away from a monolith and into a microservice? When would it be too late? When would it be too early?

https://redd.it/qp3s5p
@r_devops