Audience
This course is aimed at anyone who is looking for a thorough grounding in both Docker and Kubernetes.
Prerequisites
This course is aimed at developers with experience in any contemporary language, e.g. Java, C++, C#, Python, etc.
Duration
3 days. Hands on.
Course Objectives
Containerisation has revolutionised the way organisations build, deploy, and operate solutions in the cloud and on-premise. Docker knowledge has become indispensable, and Kubernetes has quickly emerged as the de-facto standard way to manage and orchestrate Docker containers.
This course provides a thorough grounding in both Docker and Kubernetes. We explain how to create lean and mean containers and how to ensure they operate in a resilient and responsive fashion. We explain how to enforce best practices by applying the principles laid out in the Twelve Factor App methodology.
What You Will Learn
- Understand Docker images and containers
- Make Docker images
- Use Kubernetes to orchestrate Docker containers
- Adopt best practices as described by the Twelve Factor App methodology
Course Content
Docker Images and Containers
Introduction to Containerization and Docker
Understanding Docker Images
A Closer Look at Images and Containers
Working with Containers
Containerizing a Spring Boot Application
Automating Dockerization via Maven
A Closer Look at Docker Images
The Layered Filesystem of Docker Images
A Closer Look at Dockerfile Instructions
Parameterizing Docker Containers
Multi-Stage Builds
Layered Jar Files
Docker Persistence and Orchestration
Running a Database in a Container
Interacting with the Containerized Database
Persisting Data in a Volume
Linking Containers
Linking Containers using Docker Compose
Getting Started with Kubernetes
Microservices and Orchestration
Setting up a Kubernetes Cluster
Kubernetes Pods
Kubernetes Volumes
Additional Kubernetes Techniques
Kubernetes Deployments
Services
The Twelve-Factor App
Intro to the Twelve-Factor Methodology
Coding Factors
Deployment Factors
Operational Factors
Kubernetes and Twelve-Factor Apps, Part One
Setting the Scene
Environment Variables
ConfigMaps
Secrets
Kubernetes and Twelve-Factor Apps, Part Two
Liveness and Readiness Probes
Jobs
CronJobs