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

Using both Terraform & Ansible with Gitlab for AWS

I'm trying to get this working and just can't get it. I'm running a terraform build through gitlab with a shared runner. I've created a docker image that has everything I need (terraform, aws cli, boto3, ansible) and I can't work out how to get them to work together.

​

I'm struggling to figure out how to get the credentials so that I can connect to the instances after using aws_ec2 dynamic inventory. I'm not sure how to store the credentials, and they're in private subnets with no inbound access.

https://redd.it/qmse9h
@r_devops

Need Help Jr Site Reability Engineer Salary

I was just verbally offered a job for a junior site reability engineer for a company based in CO. They asked what I'm looking for a salary, but asked for some time to research. An acquitance in the industry said somewhere between $90 - 100k. I couldn't find any solid answers on Glassdoor or levels.

I was hoping someone can give me a ballpark range to go with, or a resource that I can use. Thanks

https://redd.it/qn028u
@r_devops

Kubernetes Technical Deep Dive Books

Hey Everyone,

I've been a long lurker on this sub. I've recently got a new job that'll be a mix of SE & DevOps work and responsibilities. One of which will be dealing with a lot of legacy migrations to GCP using their CKE service.

I've only dealt with Kubernetes at a high level in my previous role and would love to get a deep technical dive into Kubernetes before I begin my new role.

Does anybody have any good suggestions on some deep in-depth technical books with Kubernetes?

Thanks for all your responses

https://redd.it/qmzfde
@r_devops

Do you use Stack Overflow? If so, how would you improve it?

I've posted here a few times in the past, and as a reminder I'm not a DevOps engineer myself. However, I work for a team building a product for the DevOps community. I've spent significant amounts of time over the last year combing through posts on S.O. to better understand the space.


I noticed that they had made some changes recently that I thought were phenomenal (https://meta.stackoverflow.com/questions/411352/outdated-answers-accepted-answer-is-now-unpinned-on-stack-overflow)


So it go me thinking...what else would you change about S.O.? Whether it be how stale content is managed, how community members engage with it, etc. All thoughts are welcome!

https://redd.it/qmtsk3
@r_devops

Let's Write Our First Helm Chart!

I've made a video tutorial on writing the simplest Helm chart, to deploy pgAdmin on Minikube. Hope it helps beginners to learn Helm a bit: https://youtu.be/xHqnilCYufE

https://redd.it/qp9psw
@r_devops

How to Install Kali Linux In VMware Workstation Pro 16

How to Install Kali Linux In VMware Workstation Pro 16 In Just 6 min

https://youtu.be/WvF4-ShKTVk

https://redd.it/qpa284
@r_devops

Change entry of Private Certificate

I created a Private certificate from ACM but the issue I am facing is the when I check it's properties the entry type is "TrustedCertEntry" which is not working for me.

I read on StackOverFlow that the entry has to be "PrivateKeyEntry" which I am getting by a self signed certificate but this is not a security best practice. Is there a way to somehow get "PrivateKeyEntry" type from AWS ACM or any other trusted CA?

Our usecase is to enforce HTTPS traffic from our application.

https://redd.it/qpb0qk
@r_devops

Where Can I Learn How to Build and Maintain a Production-Grade Infrastructure?

I learned to host my own webserver and database in aws ec2 for a small project through tutorials and articles online. (Youtube and Medium) The resources I've found only teach the bare minimum to get services up and running (eg: Setting up nginx manually with little to no configuration, installing it using apt, and only using it as a simple reverse proxy for a single webserver) I'd like to learn how big companies like Google are able to serve millions of requests per second while maintaining high availability. It would be great to learn how they configure and use their load balancers, CI CD, logging, vpc setup, rate limiting, multi-region clustering, etc. in a production environment. Thanks for your help.

https://redd.it/qpdq9o
@r_devops

Create a JKS keystore with Private Cert Entry

My use case is to enforce HTTPS traffic from our custom API Gateway.


So, I created a Private CA (root) in AWS.

After that I created a Private Certificate with my load balancer's URL.

Now when I try to export that certificate, it shows me three files.

Certificate Body, Certificate Chain and Private Key.

and I have a Certificate Body from my CA.

Now, I need to import them in keystore in JKS format with entry as Private Cert Entry.

I tries many things but it didn't work, quite honestly I don't really know what to do all these files and which one should I import in the keystore.

Any sort of help is appreciates, thanks!

https://redd.it/qpcztg
@r_devops

What do you recommend?

I need to set up a cloud project in Azure for a video platform. The videos should be loaded quickly, so would we need a fast database like ElasticSearch or are there better alternatives? I am wondering in general how should we store the videos that will be uploaded. In simple files systems or database with path?
Happy for every help and if you are open for a zoom call where you can help me out I would highly appreciate that!

https://redd.it/qpa0n4
@r_devops