(Specific role simulation part of KodeKloud)
(Many rooms cover Linux, Docker, K8s security from an offensive/defensive perspective)
(Similar to TryHackMe, CTFs often involve DevOps tool exploitation/hardening)
(Classic command-line challenges, starting with Bandit for Linux basics)
(Collection of simple games explaining cloud-native concepts)
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Forwarded from The DevOps Classroom
Kubernetes, Docker, Jenkins, Terraform, AWS, Helm, Prometheus…
These are tools, not outcomes.
Hiring managers want to know if you can keep platforms stable, scalable and predictable in production.
They ask:
• Don’t say “used Kubernetes.” Say how deployments survived node failures and reduced downtime.
• Don’t say “built pipelines.” Say how CI/CD shipped features safely without breaking production.
• Don’t say “wrote Terraform.” Say how infra patterns made environments reproducible and secure.
• Don’t say “configured Prometheus.” Say how alerting cut MTTR and protected SLAs.
• Don’t say “saved cost.” Say how you automated power-off of dev workloads during off hours, right-sized VMs, and removed idle resources to cut monthly cloud spend.
• Don’t say “configured networking.” Say how you centralized networking in a single account, enforced VPC standards, and simplified cross-team connectivity.
• Don’t say “improved security.” Say how you implemented least privilege IAM, automated key rotation, and passed an external audit with zero critical findings.
• Don’t say “scaled the app.” Say how you designed autoscaling and capacity plans that maintained 99.x percent availability during peak traffic.
These are the bullets hiring managers remember. These bullets get interviews.
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Yesterday, half the internet felt broken.ChatGPT stopped loading, X went silent, and many websites simply disappeared.
Everyone said, “Cloudflare is down”. But the real reason was much simpler and much more surprising. A config file inside Cloudflare’s system kept growing over time and the moment that file became too large, it crashed the software that handles traffic for several Cloudflare services.
When a company that carries almost 20% of the internet’s traffic has a software crash the whole world feels it.That’s why so many apps went offline at the same time.
This is a reminder for DevOps Engineers that even tiny things deserve attention.
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Big new drop! We've added advanced topics and real-world strategies across Docker & Kubernetes to take your skills to the next level!
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Regional NAT Gateways have finally arrived—something everyone has been begging for.
Before this, setting up NAT Gateways, subnets, and route tables per AZ was annoying, repetitive, and expensive.
Now? You just create one NAT Gateway, mark it Regional, and point your subnets to it. No subnet requirement, no AZ juggling. AWS handles the magic behind the scenes.
But here’s the catch:
It auto-expands across all AZs… which means you still pay per AZ.
So the #1 complaint—NAT Gateway costs—remains untouched.
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