1 Prerequisites This skill 3 Unlocked

Skill · Kubernetes · Understand, install and maintain a cluster

Install a Kubernetes cluster

Choose an installation method for the need, then build a cluster with kubeadm, Kubespray, Talos, RKE2 or k0s, understanding the CNI, CSI and CRI interfaces.

Start lesson 1The Kubernetes domain

• 3 lessons
• ~2 h 20 of reading
• 7 quizzes
• 0 proof lab

The path

Where it comes from, where it leads

What you need to know first, where you stand on this skill, and what it opens next. Your status is computed in your browser, from what you have read and passed.

Before · 1 prerequisite

• Deploy and observe an application on Kubernetes

Depending on the chosen tool, you also need:

• kubeadm (default)

  • Access a machine over SSH
  • Install and maintain software
  • Administer a systemd service

• Kubespray

  • Access a machine over SSH
  • Write a readable, idempotent Ansible playbook

• Talos

  nothing more

• RKE2

  • Access a machine over SSH
  • Administer a systemd service

• k0s

  • Access a machine over SSH

Recommended before · 2

• Explain the architecture of a Kubernetes cluster
• Address in IPv4 and read a routing table

This skill, for you

Install a Kubernetes cluster

Computing

It unlocks · 3 skills

• Make the control plane of a kubeadm cluster highly available
• Harden a cluster's components with the CIS Benchmark
• Upgrade a kubeadm cluster by one minor version

Lessons

How to learn it

This skill is learned with the tool of your choice; your preferences decide the path followed in your journey. Each path lists its lessons in program order.

With kubeadm

3 lessons · ~2 h 20 default

1. 1Options d'installation (in French)· 35 min
2. 2CNI, CSI et CRI (in French)· 35 min
3. 3Installer avec kubeadm (in French)· 70 min

With Kubespray

3 lessons · ~2 h 20

1. 1Options d'installation (in French)· 35 min
2. 2CNI, CSI et CRI (in French)· 35 min
3. 3Alternative : Kubespray (in French)· 70 min

With Talos

3 lessons · ~2 h 20

1. 1Options d'installation (in French)· 35 min
2. 2CNI, CSI et CRI (in French)· 35 min
3. 3Alternative : Talos Linux (in French)· 70 min

With RKE2

3 lessons · ~2 h 20

1. 1Options d'installation (in French)· 35 min
2. 2CNI, CSI et CRI (in French)· 35 min
3. 3Alternative : RKE2 (in French)· 70 min

With k0s

3 lessons · ~2 h 20

1. 1Options d'installation (in French)· 35 min
2. 2CNI, CSI et CRI (in French)· 35 min
3. 3Alternative : k0s (in French)· 70 min

Beyond the lessons

Assess, practise, pass the proof

Reading a lesson confirms nothing. A skill is confirmed by a passed quiz, practised in a guided lab, and put to the test by a challenge or a mission; an imported lab result is not verified by the site.

Assess yourself

7 quizzes

At the end of the lessons: passed at 70%, they confirm the skill.

Practice

No guided lab

No guided lab practices it yet.

Proof

No proof

Neither a challenge nor a mission with a proof yet.

Around it

Who requires it, who teaches it

Required by

• Platform Engineer
• Site Reliability Engineer
• CKA
• KCNA

In red: the certification it prepares for.

Taught by

• Kubernetes (in French)

Tool of your choice: kubeadm or Kubespray or Talos or RKE2 or k0s.

Same block · Understand, install and maintain a cluster

• Explain the architecture of a Kubernetes cluster
• Make the control plane of a kubeadm cluster highly available
• Control where Pods are placed
• Cap a namespace's resources
• Maintain and manage nodes without service interruption
• Back up and restore a cluster's state
• Detect and migrate deprecated APIs before an upgrade
• Upgrade a kubeadm cluster by one minor version
• Use custom resources and operators

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