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[QA's]

General QA's

Advanced Jenkins Interview QA's

CI/CD Jobs

• Jenkins Pipeline Scripts for CI/CD

Jenkins

• Jenkins Notes

• CI/CD solution on top of Kubernetes, using Jenkins as building tool and Traefik as ingress for flexible application deployment and routing

  **Keys:**++running Jenkins as a POD on k8s cluster++ Jenkins multi-branch pipeline job ++ Deployment job with Helm Chart ++ using of multiple tools in devops environment++

• Jenkins on Kubernetes cluster - issues

  **Keys:**++issues jnlp container++using podTemplate++workaround jnlp issues++

• Use customised Jenkins image on Kubernetes

SonarQube Install/Configure on Docker

• Install/Configure SonarQube on Docker in .pdf format

Keys:++sonarqube on docker++dockerizing sonarqube++sonarqube post install issues++

SonarQube/Nexus/Nginx Reverse Proxy

• Setting up Nexus with Nginx Reverse proxy

  Keys: ++Nexus with Nginx Reverse proxy++setting up nexus with Nginx Reverse proxy++Use Docker/Kubernetes with Reverses proxy++Nexus & Docker/kubernetes with Nginx proxy++

• Nginx Fails with "413 Request Entity Too Large"

  [Keys: ++docker image push through nginx rev proxy fails++413 Request Entity Too Large++nginx error++docker push fails++]

• SonarQube Post-Installation/configuraiton Step

  Keys: ++sonarqube does not respond++post-install issues sonarqube++sonarqube post-install issues++sonarqube postinstall issues++ sonarqube post install++webhook++sonarqube webhook++change default quality gate++set default quality gate++change quaility gate++

Kubernetes

• Docker & Kubernetes Knowledge Repo

• Docker & Kubernetes Q&A's

Installation Kubernetes

• Install Kubernetes with Kubeadm

• GKE Cluster Concepts, Installation, Configuration

  • GKE Cluster concepts & connecting to cluster from gcloud shell post-installation

    Keys: ++GKE clusters concepts++Zonal vs Regional Cluster++single-zone clusters++multi-zone clusters++regional clusters++Private clusters++Shared VPC Clusters++cluster autoscaler++connect from gcloud shell++connect to cluster from gcloud shell++credentials from cluster++get credentials of cluster++

  • Configure Client/Jenkins Master to Access GKE Cluster

    Keys: ++Configure GKE Cluster to access it From a Jenkins Master Node++GKE cluster client configuration++configure client to access GKE++access GKE from Jenkins++connect to GKE clusters from Jenkins++

• Install Jenkins/SonarQube/Nexus on Kubernetes cluster with Helm

• Extract password from a secret

  keys: ++Get password from secret++decrypt password++base64++get plain password++

• Kubernetes Best Practices

• Configure Private Docker Insecure Registry on Nexus running in a container

  Keys: ++nexus++docker registry++private docker registry++configure insecure docker registry++insecure-registries++

• Connecting to Private (Nexus) Docker Registry with Containerd/Docker in later versions of Kubernetes/GKE Clusters

  Keys: ++containerd++private docker registry++nexus Docker private registry++insecure registries with Containerd++Docker insecure registries++issues with containerd++issues with private docker registry++insecure registry with containerd++containerd with insecure registry++Self-signed Certificate with GKE cluters & Container.d (Kubernetes versions > 1.19)++ x509: certificate signed by unknown authority++

Storage

• PV/PVCs on NFS - with Helm NFS Provisioner Examples

• General concepts of PV/PVCs and with GKE Cluster

• QA on Storage - PV/PVC's

* Secrets

• how to

Security Context

• SecurityContext: runAsUser/runAsGroup/fsGroup etc

• Examples : Difference between using SecurityContext for Local filesystem (emptrydir() type & NFS

• Affinity

  • Node Selectors

  • Node Affinity/Node Anti-Affinity

  • Pod Affinity/Pod Anti-Affinity

• Taints & Tolerations

• NameSpaces & Resource Quota

• HPA & VPA - yet to be added

• Network policies in kubernetes

  • Introduction

  • Advanced Concepts with more examples

• Helm Charts

  • Basics

  • Level2

  • Templates Functions, Multiple Values & Files

  • Add Repositories, Dependencies & Hooks in Helm

• Argocd Install/configuration

• Security SSL/TLS Certificate implementation - with Ansible

  (Keys: ++Nexus with Reverse proxy++ ++nexus with Nginx Reverse Proxy++Private Docker Repository++ ++Enable Security with https++ssl++tls++https++encryption++security++)

• MongoDB: Install & Using on Kubernetes

  (keys: ++mongo on kubernetes++mongodb on kubernetes++mongodb manifest files++mongo on k8s++mongo kubernetes manifests with password ++mongo kubernetes manifests without password++data manupulation with mongodb++insert/update/delete records++mongodb collections++mongodb records++using mongodb)

• Create Network File System NFS mounts

Kubernetes and General Network

Network Troubleshooting - Linux/Docker/Kubernetes

keys:++network issues++network troubleshooting++ip route++netstat++nmcli++network configuration++network interface++route++ports being used by a Docker container++ports by a container++container ports with netstat++kubernetes network++pod network++kubectl port-forward++k8s network++

Why only K8's Pod's are accessible but not Services from clients outside K8s cluster?

keys: ++Why Pod's are accessible by their IP Port address but not Services from a non cluster node like Jenkins master++ip route++ip route get++overlay etwork++fannel++calico++eth++veth++