Kubernetes Fundamentals for Beginners

Kubernetes fundamentals refer to all the basic concepts and skills necessary to understand and use the most widespread container orchestrator.

If you're starting with Kubernetes in 2026, this one-day training is the ideal entry point before specializing in administration (CKA), development (CKAD), or security (CKS).

TL;DR: Discovering Kubernetes in one day covers seven essential modules: Docker containers, K8s architecture, kubectl, Deployments, Services, storage, and RBAC. The Kubernetes Fundamentals training (1 day, 7h, 7 modules) gives you the basics to get started.

Why Should You Discover Kubernetes in 2026?

According to the CNCF Annual Survey 2025, 82% of organizations use Kubernetes in production, compared to 66% in 2023 (20% growth). This massive adoption makes Kubernetes knowledge essential for IT teams.

Kelsey Hightower, creator of "Kubernetes The Hard Way", compares Kubernetes to Linux: both have become fundamental components in their respective domains (CNCF Blog).

The Kubernetes fundamentals training covers seven essential modules to get started:

Key insight: This training is a discovery (1 day). To go deeper, continue with LFS458 Administration (CKA) or LFD459 Development (CKAD).

Check out our Kubernetes Training: Complete Guide to see how fundamentals fit into the overall certification path.

Where to Start? Your First Steps

Before diving into training modules, these resources help you get started:

Key insight: Start by installing a local cluster (Minikube or Kind), then follow the "first pod" tutorial before continuing.

What Are the Prerequisites to Start with Kubernetes?

Technical prerequisites include Linux basics and familiarity with Docker. Kubernetes builds on these foundations to orchestrate containers at scale.

Required Linux Skills

You need to know the Linux command line: filesystem navigation, process management, file editing with vim or nano. Understanding user permissions and TCP/IP networking greatly facilitates learning.

# Check your kubectl version
kubectl version --client

# Display cluster information
kubectl cluster-info

# List available namespaces
kubectl get namespaces

Essential Docker Skills

Docker is the foundation of containerization that Kubernetes orchestrates. You need to know how to build images, run containers, and understand the concept of image registries. Our guide on Docker containerization best practices covers these fundamentals.

Key insight: A day of Docker practice before starting Kubernetes significantly accelerates your progress.

Infrastructure engineers benefit from structured training with practitioner instructors, guided labs, and production feedback that self-study cannot provide.

What Does the "Kubernetes Fundamentals" Training Include?

The Kubernetes Fundamentals training covers 7 modules in one day (7h). The content alternates between theory, demonstrations, and hands-on labs on dedicated clusters.

Module 1: Docker & Containers

Understanding container use cases, image and container concepts, and creating custom images. This module lays the containerization foundation that Kubernetes orchestrates.

Module 2: Kubernetes Architecture

Control plane components (API Server, etcd, Scheduler, Controller Manager), Pod structure, namespaces, labels, and Kubernetes API fundamentals.

Module 3: Kubernetes Operations

kubectl manipulation, cluster inspection, log viewing, interactive Pod access. Lab: kubectl command line manipulation.

Module 4: Deployments & ReplicaSets

Creating Deployments, scaling workloads via the scheduler and ReplicaSets.

Labs: Nginx proxy deployment, scaling operations.

# Deployment example
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
spec:
replicas: 3
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:1.27
ports:
- containerPort: 80

Module 5: Services

Exposing applications within the cluster infrastructure. Lab: Nginx exposure via a Service.

Module 6: Storage & Persistence

PersistentVolume allocation, centralizing configuration with ConfigMaps, implementing Secrets. Lab: Spring application configuration via ConfigMap.

Module 7: Access Control & Security

Kubernetes authentication and authorization, RBAC role definition. Lab: restricting access to sensitive data.

Key insight: The training alternates between 50-80% hands-on practice depending on modules, with guided labs on dedicated clusters.

How to Choose Your Kubernetes Fundamentals Training?

The choice depends on your profile, certification goals, and budget. Several criteria help identify the right training.

Criterion 1: Duration and Depth

Discovery trainings last 1 day (7h) and cover essential concepts. In-depth trainings extend over 3-4 days with intensive hands-on labs. The LFS458 Kubernetes Administration training represents 4 days (28h) of intensive CKA preparation.

Criterion 2: Target Certification

If you're preparing for a Linux Foundation certification, opt for official trainings:

• CKA (Certified Kubernetes Administrator): cluster administration focus, prepared by LFS458
• CKAD (Certified Kubernetes Application Developer): application development focus, prepared by LFD459
• CKS (Certified Kubernetes Security Specialist): security focus, prepared by LFS460

According to the Linux Foundation, these certifications are valid for 2 years and recognized worldwide.

Criterion 3: Pedagogical Quality

Practitioner instructors bring unique value. They share production experience that online courses cannot provide. Verify that the organization has Qualiopi certification, which guarantees training process quality.

Key insight: SFEIR group training organizations (SFEIR SAS, SFEIR-EST) are Qualiopi certified for training actions.

Where to Take Kubernetes Training in France?

SFEIR offers Kubernetes training in 8 French cities and Luxembourg. Each session combines theory and practice on dedicated clusters.

Trainings are also available in synchronous remote format with the same pedagogical quality level.

What Paths After Kubernetes Fundamentals?

Fundamentals open the way to three specializations: administration, development, or security. Each path leads to a recognized certification.

Administration Path (CKA)

Infrastructure engineers deepen multi-node cluster management, advanced troubleshooting, and high availability strategies. The LFS458 training (4 days) specifically prepares for the CKA exam.

Development Path (CKAD)

Developers move to the LFD459 training (3 days) to deepen application deployment patterns, configuration management, and cloud-native application observability. It prepares for the CKAD.

Security Path (CKS)

Security engineers continue with the LFS460 training (4 days) to implement network policies, configure admission controllers, and secure the image supply chain. It prepares for the CKS.

# Example of restrictive Network Policy
kubectl apply -f - <<EOF
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: deny-all-ingress
spec:
podSelector: {}
policyTypes:
- Ingress
EOF

Kubernetes Training: Best Practices to Maximize Learning

Daily practice on a personal cluster accelerates retention. Combine structured training and autonomous experimentation for optimal results.

Create a Lab Environment

Install minikube or kind on your local machine. These tools simulate a complete Kubernetes cluster in minutes:

# kind installation (Kubernetes in Docker)
curl -Lo ./kind https://kind.sigs.k8s.io/dl/v0.23.0/kind-linux-amd64
chmod +x ./kind
sudo mv ./kind /usr/local/bin/kind

# Create a cluster
kind create cluster --name training-k8s

Practice with Targeted Exercises

The killer.sh site offers CKA/CKAD/CKS exam simulators identical to real conditions. Linux Foundation certifications recommend intensive practice in a real environment before the exam.

Join the Community

The French-speaking Kubernetes and CNCF Slack have thousands of practitioners who share solutions and feedback. Participating in KubeCon (the next European edition is in Amsterdam from March 23-26, 2026) allows you to meet the community.

Key insight: 30 minutes of daily kubectl practice for 4 weeks creates lasting habits.

Your Next Step Toward Kubernetes

Kubernetes fundamentals training for beginners is your first investment in the cloud-native ecosystem. Whether you're a system administrator, developer, or architect, these skills are essential in 2026.

Explore our Complete Kubernetes Training Guide to discover all available paths.

Recommended Trainings

Contact our advisors to identify the training suited to your profile and objectives. Contact your OPCO to explore funding possibilities.

Guides and Tutorials in This Section

To deepen your Kubernetes fundamentals, explore these resources:

• Install Kubernetes Locally: Complete Guide with Minikube, Kind, and K3d: configuring your development environment
• Deploy Your First Kubernetes Pod in 15 Minutes: step-by-step tutorial for your first deployment
• Kubernetes vs Docker: Understanding Essential Differences: clarifying each technology's role
• Docker and Containers: Why Use Them?: introduction to containerization
• Kubernetes Architecture: Control-Plane, Pods, and Namespaces: understanding fundamental components
• kubectl: Essential Commands for Beginners: mastering the main CLI tool
• Kubernetes Deployments and ReplicaSets: Practical Guide: managing your application workloads
• Kubernetes Services: Exposing Your Applications: making your applications accessible
• Kubernetes PersistentVolumes, ConfigMaps, and Secrets: managing storage and configuration
• Kubernetes RBAC: Introduction to Access Control: securing access to your cluster