Learning Paths

Day 1 (Kubernetes Administration Basics, Core Componentes)

Introduction Cloud Native

  • Differences between VM and Container
  • History of Cloud Native
  • Docker cli (build, pull, push, login, ps, logs, prune)
  • What is a docker registiry?

Core Concepts

  • Understand the Kubernetes API primitives.
  • Understand the Kubernetes cluster architecture.
  • Understand Services and other network primitives.

Scheduling

  • Use label selectors to schedule Pods.
  • Understand the role of DaemonSets.
  • Understand how resource limits can affect Pod scheduling.
  • Understand how to run multiple schedulers and how to configure Pods to use them.
  • Manually schedule a pod without a scheduler.
  • Display scheduler events.
  • Know how to configure the Kubernetes scheduler.

Application Lifecycle Management

  • Understand Deployments and how to perform rolling updates and rollbacks.
  • Know various ways to configure applications.
  • Know how to scale applications.
  • Understand the primitives necessary to create a self-healing application.

Day 2 (Kubernetes Administration Basics, Core Componentes)

Horizontal Pod Autoscaler

  • Configure the HPA for one APP
  • Test the HPA

HELM

  • What is a HELM Chart?
  • Setup helm and tiller
  • Install a chart form a repo

A simple Cloud Native CI / CD Pipeline

  • Introduction into trunk based development
  • Introduction in GitLab
  • Creating GitLab Pipeline CI / CD
  • Connecting GitLab to Kubernetes

An advanced Cloud Native CI / CD Pipeline (GitOps)

  • What is GitOps? What are the benefits?
  • Overview of the Process
  • Introduction a Deployment Operator like Argos CD

Source 2 Image

  • Benefits of S2I
  • Customzie your own S2I Image
  • Build a Java SpringBoot Project
  • Build a PHP Project
  • Optimizing the build process with runtime images

Security

  • Know how to configure authentication and authorization.
  • Understand Kubernetes security primitives.
  • Know to configure network policies.
  • Create and manage TLS certificates for cluster components.
  • Work with images securely.
  • Define security contexts.
  • Secure persistent key value store.

Storage

  • Understand persistent volumes and know how to create them.
  • Understand access modes for volumes.
  • Understand persistent volume claims primitive.
  • Understand Kubernetes storage objects.
  • Know how to confifigure applications with persistent storage.

Design a OpenShift/Kubernetes cluster

  • Install OpenShift masters and nodes.
  • Configure secure cluster communications.
  • Configure a Highly-Available OpenShift cluster.
  • Know where to get the OpenShift release binaries.
  • Provision underlying infrastructure to deploy a OpenShift cluster.
  • Choose a network solution.
  • Choose your OpenShift infrastructure configuration.
  • Run end-to-end tests on your cluster.
  • Analyse end-to-end tests results.
  • Run Node end-to-end tests.
  • Install and use advanced installer to install, configure, and manage OpenShift clusters.

Day 3/4 ( Advanced Topics )

This intro will introduce features and advanced scenarios that are not shipped as a core compontent in kuberentes.

RBAC

  • Creating a Role / ClusterRole
  • Creating a Group
  • Creating a Service Account
  • Creating a User
  • Managing Roles, Groups, Users and Service Accounts

Troubleshoot application failure

  • Troubleshoot control plane failure.
  • Troubleshoot worker node failure.
  • Troubleshoot networking.

Logging/Monitoring

  • Understand how to monitor all cluster components.
  • Understand how to monitor applications with ( Prometheus, Grafana and Alertmanager ).
  • Manage cluster component logs.
  • Manage application logs

Cluster

  • Understand Kubernetes cluster upgrade process.
  • Facilitate operating system upgrades.
  • Implement backup and restore methodologies.

Networking

  • Understand the networking configuration on the cluster nodes.
  • Understand Pod networking concepts.
  • Understand service networking.
  • Deploy and configure network load balancer.
  • Know how to use Route/Ingress rules.
  • Know how to configure and use the cluster DNS.
  • Understand CNI.

Comparing HA Rollout Sceanarios of Kubernetes

  • Concept of a Single Cluster
  • Concept of a Multi Cluster
  • Concept of a Hybrid Cluster
  • Concept of a Federated Cluster
  • Concept of a Streched Cluster
  • Comparision of all

Building a Federated Cluster ( Multiple Redundacy and Replication )

  • Introduction into Federation
  • KubeFed Operator
  • Federation Control Objects

Integrating an External F5 Loadbalancer (Openshift only)

  • Understand how to Integration work
  • Integrate an F5 Big IP into Openshift

Cloud Native Storage / CSI

  • Setup of Cloud Native Storage ( Rook.io, Miniio, Ceph on a Hyperconverged Infrastructure )
  • Integration of a Legacy NFS Server / External Storage
  • Storage Classes, Claim and PVCs

Image Streams (Openshift only)

  • Define a Image stream
  • Use an Image Stream

SSO via OpenID Connect

  • Setup of a OpenID Connect Server
  • Import / Sync Users from a LDAP to Keykloak
  • Configure Openshift to use external Auth from KeyCloak

Isteo Service Mesh

  • Understading a Service Mesh
  • The Twelve Factors App
  • How Isteo completes the 12 Factor App Paragim in Kuebernetes
  • How to setup Isteo

The Operator Framework SDK

  • Benefits of Operators
  • Understanding Operators
  • Introduction operatorhub.io
  • Installing the Acme operator
  • Creating a own Operator with the Operator SDK
  • Dependency Management with Operators.

Service Catalog

  • Create an own template for the service catalog
  • Import external repositories into the service catalog
  • Consuming Services via Subcriptions

Load test / Auto Scaling

  • Benchmark your Application / Cluster
  • Test your HPA with the Benchmark
  • Review the Benchmark

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