Kubernetes Tools Reference

This guide provides information on essential tools for Kubernetes cluster management, troubleshooting, and operations.

Core Tools

kubectl

The official Kubernetes command-line tool.

Installation:

# Linux
curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
chmod +x kubectl
sudo mv kubectl /usr/local/bin/

# macOS
brew install kubectl
# or
curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/darwin/amd64/kubectl"
chmod +x kubectl
sudo mv kubectl /usr/local/bin/

# Windows
choco install kubernetes-cli
# or
curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/windows/amd64/kubectl.exe"

Key Features:

• Manage Kubernetes resources
• View logs and execute commands in containers
• Forward ports and proxy connections
• Apply manifests and configurations

Useful Extensions:

• kubectl aliases
• kubectl plugins

Helm

Package manager for Kubernetes.

Installation:

# Linux/macOS
curl -fsSL https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 | bash

# Windows
choco install kubernetes-helm

Basic Usage:

# Add repository
helm repo add bitnami https://charts.bitnami.com/bitnami

# Search charts
helm search repo bitnami

# Install chart
helm install my-release bitnami/nginx

# List releases
helm list

# Upgrade release
helm upgrade my-release bitnami/nginx --values custom-values.yaml

# Uninstall release
helm uninstall my-release

Key Features:

• Package and distribute applications
• Version control for deployments
• Template-based resource generation
• Release management

k9s

Terminal-based UI for managing Kubernetes clusters.

Installation:

# Linux/macOS
brew install derailed/k9s/k9s

# Linux
curl -sS https://webinstall.dev/k9s | bash

# Windows
choco install k9s

Key Features:

• Interactive UI for cluster management
• Resource filtering and navigation
• Log viewing and container shell access
• Resource editing and management
• Customizable views and shortcuts

Diagnostic Tools

kubectl-debug

Debug running pods with ephemeral containers.

Installation:

kubectl krew install debug

Usage:

kubectl debug <pod-name> -it --image=nicolaka/netshoot

Key Features:

• Debug pods without modifying them
• Access running pods with debug tools
• Network and filesystem troubleshooting

Stern

Multi-pod and container log tailing.

Installation:

# Linux/macOS
brew install stern

# Using go
go install github.com/stern/stern@latest

Usage:

# Tail logs from all pods with name containing "app"
stern app

# Tail logs for specific containers
stern app -c container1 -c container2

Key Features:

• Tail multiple pod logs simultaneously
• Color-coding for different pods/containers
• Regex filtering for pods and containers
• Timestamp and output formatting

kubectx and kubens

Fast way to switch between contexts and namespaces.

Installation:

# Linux/macOS
brew install kubectx

# Using Krew
kubectl krew install ctx
kubectl krew install ns

Usage:

# Switch context
kubectx <context-name>

# Switch namespace
kubens <namespace>

Key Features:

• Fast context switching
• Namespace management
• Interactive selection

Development Tools

Skaffold

Continuous development for Kubernetes applications.

Installation:

# Linux/macOS
brew install skaffold

# Linux/Windows/macOS
curl -Lo skaffold https://storage.googleapis.com/skaffold/releases/latest/skaffold-linux-amd64
chmod +x skaffold
sudo mv skaffold /usr/local/bin

Key Features:

• Continuous build, push, and deploy
• File watching and hot reloading
• Multi-environment support
• Integration with CI/CD systems

Kustomize

Template-free way to customize Kubernetes configurations.

Installation:

# Built into kubectl
kubectl kustomize

# Standalone
brew install kustomize

Key Features:

• Overlay-based configuration management
• Resource patching without templates
• Environment-specific configurations
• Integration with kubectl

Monitoring and Visualization

Prometheus and Grafana

Monitoring and visualization stack.

Installation:

# Using Helm
helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
helm install prometheus prometheus-community/prometheus
helm install grafana grafana/grafana

Key Features:

• Time-series metrics collection and storage
• Alerting and notification
• Rich visualization dashboards
• Query language for metrics

Lens

Kubernetes IDE with rich features.

Installation: Download from Lens website

Key Features:

• Graphical cluster management
• Resource visualization and metrics
• Terminal access and log viewing
• Built-in Prometheus integration

Cluster Management

kubeadm

Tool for cluster bootstrapping.

Installation:

apt-get update && apt-get install -y kubeadm

Key Features:

• Bootstrap Kubernetes clusters
• Upgrade Kubernetes components
• Add/remove nodes
• Generate certificates and tokens

kops

Production-grade cluster installation, upgrade, management.

Installation:

# Linux/macOS
brew install kops

Key Features:

• Create production-ready clusters on AWS
• Multi-master high availability
• Infrastructure as code
• Rolling updates and upgrades

Rancher

Complete container management platform.

Installation:

helm repo add rancher-latest https://releases.rancher.com/server-charts/latest
helm install rancher rancher-latest/rancher \
  --namespace cattle-system \
  --create-namespace \
  --set hostname=rancher.example.com

Key Features:

• Multi-cluster management
• User management and RBAC
• App catalog and CI/CD
• Monitoring and logging integration

GitOps Tools

ArgoCD

Declarative GitOps continuous delivery tool.

Installation:

kubectl create namespace argocd
kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml

Key Features:

• GitOps workflow
• Application state visualization
• Multi-cluster deployment
• SSO integration

Flux

GitOps toolkit for Kubernetes.

Installation:

# Using Flux CLI
curl -s https://fluxcd.io/install.sh | sudo bash
flux bootstrap github \
  --owner=<username> \
  --repository=<repository> \
  --personal

Key Features:

• Automated deployment
• Helm and Kustomize integration
• Notification controller
• Multi-tenancy support

Security Tools

Trivy

Container vulnerability scanner.

Installation:

# Linux/macOS
brew install aquasecurity/trivy/trivy

# apt-based Linux
sudo apt-get install -y trivy

Usage:

trivy image nginx:latest

Key Features:

• Vulnerability scanning for containers
• Infrastructure as Code scanning
• Integration with CI/CD
• SBOM generation

kube-bench

Kubernetes CIS benchmark testing.

Installation:

kubectl apply -f https://raw.githubusercontent.com/aquasecurity/kube-bench/main/job.yaml

Key Features:

• CIS benchmark compliance testing
• Security best practice verification
• Detailed remediation guidance
• CI/CD integration

Network Tools

kubeshark

API traffic analyzer for Kubernetes.

Installation:

# Linux/macOS
brew tap kubeshark/kubeshark
brew install kubeshark

# Script install
sh <(curl -Ls https://kubeshark.co/install)

Key Features:

• Real-time API traffic visualization
• Protocol-level inspection
• Traffic replay and testing
• Service map visualization

Cilium

Advanced networking and security.

Installation:

helm repo add cilium https://helm.cilium.io/
helm install cilium cilium/cilium --namespace kube-system

Key Features:

• eBPF-based networking
• Network policy enforcement
• Transparent encryption
• Network performance monitoring

See Also

• Kubectl Commands
• ArgoCD Operations
• Resource Management