how to containerize a multi-container application using docker-compose?

I tried reading https://github.com/Lucifergene/Docker-Mern

But I'm confused. Should I continue to Kubernetes? My main confusion is YAML files. Is there a course to learn about YAML files in detail with example? I'm node js developer.

https://redd.it/13t0lm9
@r_devops

Cross Training?

Just curious if anyone has good experience cross training others, specifically application programmers in devops tasks. For example, with the small team I am on, everyone mostly relies on the one guy who knows Kubernetes if, say, we have some pods failing.

What strategies do you employ to try to motivate others to learn how to do the devops work without just saying “figure it out”?

https://redd.it/13sugt1
@r_devops

How much of the AWS cert content is actually relevant to DevOps?

I refuse to believe that knowing how a 'CMK is used to encrypt a DEK and then stored in a KMS' is something particularly worth learning in the context of DevOps. Seriously, what's the point of knowing these things just for a certification if I'll never use them?

What exactly are we supposed to learn about in the cloud space for DevOps/SRE roles? There are so many acronyms and unrelated concepts, it feels overwhelming and my head might explode. Are there things I can just focus on instead of actually going and obtaining an AWS cert?

https://redd.it/13t55fr
@r_devops

Explore the basics of distributed tracing

Found this guide on distributed tracing on Medium, could be helpful. https://medium.com/cloud-native-daily/distributed-tracing-a-guide-for-2023-a40a1ee218b5

https://redd.it/13t8w6d
@r_devops

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https://redd.it/13t9ojr
@r_devops

How long it will take me to learn how to be an devops?

Just completed my degree with finance background and hoping to learn .

https://redd.it/13t9xfx
@r_devops

Are stupid database questions allowed? If a database is backed up only every hour, do we just lose the unbacked up data within the one hour time frame?

What are some strategies to mitigate this besides more frequent backups, if possible at all?

I think I'm lacking the vocabulary to properly search for answers. Am I even asking the right question?

Thanks for your guidance.

https://redd.it/13tcq2s
@r_devops

DevOps / Cloud / Site reliability engineers - How much DSA questions have you noticed in the job search process?

Basically title.
I know other branches of SWE are more LC heavy (like backend especially), but how is it like in the infrastructure / cloud / devops space, in your experiences?

https://redd.it/13teg7e
@r_devops

How do you maintain a real time back up?

Just a small case study kinda question that crossed my mind, I'm a student be kind on me. So if there's a company, say Facebook. Now let's assume they have 100 new users joining every 1 hour. And each user addition is practically a completely new customer that they can't afford to lose . But what if the server goes down and they're forced to roll back to the most recent backup which might've been an hour ago? What happens to these new users between that remaining time frame, and what happens to all the content they posted? And Facebook could probably afford to back up every microsecond but what about smaller companies with 1000x lesser budgets ?

https://redd.it/13te3f7
@r_devops

What skills and concepts/topics are required to land dev ops straight out of college?

Hey just wanted to know the main important content fkr dev ops jobs. Also how hard is it to land a dev ops job straight out of college in comparison to swe jobs?

https://redd.it/13tfyxi
@r_devops

Has anyone tried using terragrunt for PR environments in GitHub actions pulling private repo?

Essentially trying to run terragrunt in a GHA workflow with the .hcl file sourcing from a private GitHub repo. Can’t get it to work even with a PAT token.

https://redd.it/13tfwcp
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I don't get the point of KV/secrets manager (Vault, Azure secrets, AWS secrets...)

After reading some documentation, i still don't get the point of secrets manager services like Hashicorp Vault, AWS secret manager or Azure Key Vault secrets.I understand the need to not have secrets in env. files or Git. But i don't get how such services improve the situation.

Let say your app instance is authorized to get a token from the KV service to access another server or api. Now, if a malicious party takes control of the instance, what is preventing him to ask the vault service for the credentials or token. How is this improving the situation ?

Thank you.

https://redd.it/13qp391
@r_devops

Parllelx.sh - run chmod or chown command parallelly on huge amount of file

Hi, Just wrote simple bash script to run chown and chmod commands parallelly in background using screen command. hope his will be helpful if someone is running chmod/chown on large data sets.


Motivation:
After moving 650GB of jenkins data(/var/lib/jenkins) containing small small files from hard disk(AWS EBS) to NFS(AWS EFS) i had to change the ownership of files which was taking long time and after 3+ hours i just stopped the chown command. As Jenkins server had 8 CPU core i thought of using by going inside directories and running the chown command one by one with screen. which took around about 1 hour to complete but i had to do lots of stuff manually like getting the list of directory hierarchy and monitoring the status of previous running chown command before i can run another command. I thought of writing this script to fully automate those steps.

code : https://github.com/koolwithk/parallelx.sh

https://redd.it/13tk8rj
@r_devops

CPU vs vCPU

Hello, I’m about to purchase a server/switching from cloud hosting, I just wanted to ask (I’m not really good with tech at all), the cloud server I was on had 48vCPUs, what I’m moving to is a dedicated server 32 Cores/64 threads, in this case which is better? Again I apologize if this is a bad question in itself, I just want the basics of it

https://redd.it/13to58q
@r_devops

We summarized top 10 interview questions for DevOps engineer

Top 10 Interview Questions for DevOps Engineer

Can you comment with the questions you had before?

https://redd.it/13tp7hq
@r_devops