Discontinuing LinkedIn Newsletter "Learn Cloud, DevOps, Coding" to focus on LearnXOps.com Newsletter

To my 50000+ Newsletter readers here, thanks for all the support, for liking what I do, sharing constant feedback with me, via this article/newsletter post I would like to announce that I am closing this newsletter in favor of https://www.learnxops.com/, all contents from this newsletter will be moved there and I will be completely focusing on LearnXOps ,

I will be writing all my future articles and newsletter there, so I will highly encourage you to subscribe to https://www.learnxops.com/subscribe

I share exclusive Cloud, DevOps, MLOps, AIOps, FinOps ....XOps content there!

And not just only that recently my subscribers got an excisive Kubernetes Handbook completely free of cost and you get it too via the referral tab, here's the steps:

Step 1: Signup/login via: https://www.learnxops.com/?modal=login

There you will get a chance to automatically get the Kubernetes Handbook and Freelance Masterbook

In this Kubernetes Handbook I have covered below:

01 - Introduction

• What is Kubernetes?
• Why use Kubernetes?
• Containers vs. Orchestration
• Declarative vs. Imperative Approaches
• Kubernetes Architecture Overview

02 - Set-up Environment

• Local Clusters (Minikube, Kind, Docker Desktop)
• Production-Ready Self-Managed Clusters (kubeadm, kOps, Rancher)
• Managed Kubernetes Services (AWS EKS, GCP GKE, Azure AKS)
• Cost Considerations
• When to Use What?

03 - Core Concepts in Action

• Namespaces
• Pods: The Smallest Deployable Unit
• Deployments: Managing Stateless Workloads
• Replica Management, Rolling Updates & Rollbacks
• Services: ClusterIP, NodePort, LoadBalancer
• ConfigMaps & Secrets

04 - Advanced Workloads and Patterns

• StatefulSets: Managing Databases in Kubernetes
• DaemonSets: Running Services on Every Node
• Jobs & CronJobs: Scheduling Batch Processing
• Operators & Custom Resource Definitions (CRDs)

05 - Networking Deep Dive

• Container Network Interface (CNI) Plugins: Calico, Flannel, Cilium
• Ingress Controllers: NGINX, Traefik
• DNS & Service Discovery: CoreDNS
• Hands-on Lab: Expose a Microservice via Ingress

06 - Storage Solutions

• PersistentVolumes (PVs) & PersistentVolumeClaims (PVCs)
• StorageClasses: AWS EBS, GCP PD, Azure Disk
• Stateful Apps & VolumeClaimTemplates in StatefulSets
• Avoiding Data Loss During Pod Rescheduling

07 - Troubleshooting and Error Handling

• Common Errors & Fixes ImagePullBackOff CrashLoopBackOff NetworkPluginNotReady
• Debugging Tools kubectl describe, kubectl logs, kubectl exec
• Real-World Scenarios & Fixes Service Endpoints Missing (Label Mismatch) PersistentVolume Stuck in "Pending" (Storage Class Issues)

08 - Optimization & Cost Management

• Resource Requests & Limits (Avoid CPU throttling & OOM Kills)
• Horizontal Pod Autoscaler (HPA)
• Cluster Autoscaler (CA)
• Cost Saving Tips: Spot Instances Avoiding Overprovisioning Cleanup Idle Resources Kubecost & Cloud Cost Tools

09 - Kubernetes Gotchas and Anti-Patterns

• Pod Disruption Budgets (PDBs): Avoiding Downtime
• HostPath Volumes: Security Risks & Alternatives
• Zombie Namespaces: Orphaned Resources Consuming Costs
• Version Skew: Avoiding API Deprecation & Upgrades

10 - Kubernetes Security Best Practices

• Role-Based Access Control (RBAC)
• Pod Security Admission (PSA) (Replacing Pod Security Policies)
• Network Policies: Isolating Namespace Communication
• Image Security: Scanning & Securing Container Images

11 - Monitoring, Logging, and Observability

• Prometheus & Grafana: Metrics & Alerts
• EFK Stack (Elasticsearch, Fluentd, Kibana): Centralized Logging
• Distributed Tracing with Jaeger & OpenTelemetry

12 - CI/CD Pipelines with Kubernetes

• GitOps with Argo CD: Declarative Kubernetes Deployments
• Jenkins Pipelines: Automating Build, Test & Deployments
• Helm Charts: Managing Kubernetes Releases

13 - What Next You May Explore?

• Serverless with Knative
• Service Mesh with Istio
• Edge Computing with K3s & MicroK8s

14 - GET SET GO

• Final Thoughts
• Continuous Learning & Community Engagement

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