Real-life Kubernetes

This course focuses on the most commonly used Kubernetes features as well as provides practical tutorials and real-life examples of deploying distributed applications, managing networking primitives (load balancers, proxies), setting up persistent data storage, dynamic configuration management, and many other exciting features built into the core of Kubernetes.

Module 1: introduction

Architecture overview: master node, worker nodes, etcd, kubelet, controllers
Anatomy of a pod: the main container, init containers, sidecars, labels, probes
Basic commands and debugging tricks
Practice: deploy an application as a Pod with the primary process, umplement initialization logic executed in init containers, add watchdog containers and probes

Module 2: deployments and services

Anatomy of a deployment: types of deployments, replica set, replica count
Introduction to Kubernetes networking
Anatomy of a service: traffic routing, labels, port mapping
Service types: node port, cluster IP, load balancer
Anatomy of kubeproxy
Introduction to service meshes
Practice: configure application traffic routing, implement different service types, implement canary release procedure

Module 3: storage

Persistent volumes: volumes types, volume resizing, volume snapshots
Working with complex deployments: stateful sets
Job and Cron-jobs
Practice: configure stateful deployment for an HA database (PostgreSQL or MariaDB); configure an HA caching layer (Redis) for your application; implement a scheduled backup procedure for an HA database

Module 4: configuration management

Configuration management: config maps, reloadable configurations
Deployment time configuration injection with Kustomize
Secrets management and integration with service discovery service (Consul and Vault)
Introduction into Kubernetes admission webhooks and cluster events
Practice: implement two environments (applications + data storage) running in different namespaces with different settings, implement automatic configuration propagation at run time using different mechanisms

Module 5: resource control and scheduling

Resource management: resource requests and limits
Anatomy of a node pool
Taints and tolerations, scheduling internals
Dive into built-in resource monitoring and metrics
Auto-scaling policies and range limiters
Practice: adjust resource limits for existing deployments; implement auto-limit and auto-scaling policies

Module 6: security

Cluster security with RBAC, service accounts, cluster roles, namespace security
Integrating with external security providers
Pod security and network policies
Practice: implement cross-environment security policies with the help of service accounts and external LDAP integration; limit network traffic between pods

Module 7: advanced operations

Day-1 vs. Day-2 operations
Introduction to Helm charts
Introduction to Operator pattern
Custom resource definitions
Practice: implement operator from a given template with Bash or Python

What You Get

Unique content - real-life use cases, modern infrastructure, CI/CD/GitOps principles shown in practice.
Certificate of attendance - you will get a shareable online certificate.
Exam after the course - you may pass an optional 1-hour exam and get your score printed on the certificate.
Workshop happens online - join from the convenience of your office or home.
Video recordings will be available after the course - you can revisit some topics late
Live and interactive - you can ask questions in the chat or over audio and get live clarifications.
Q&A session in the end of each day - you will to get answers to more complex questions in a 1-hour long Q&A session.
Quizzes and polls during the course - learning should be fun!
Practical exercises with solutions - lots of simple and not-so-simple tasks to practice with during the course; Solutions will be provided afterwards.
Additional home work - for those who want to practice more after the course; Homework will be reviewed and supplemented by constructive feedback.
Lifetime e-mail support - you can get answers on anything related to the course content as well as advice based on your company specific situation.