Introduction

• Installation
• Hello World - Running a simple BASH shell

Docker Images

• What is an image?
• Finding images
• Listing images
• Pulling images
• Removing images

Docker Containers

• Introduction to containers
• Difference from images
• Running a container
• Listing the running containers
• Listing all containers
• Stopping/Starting containers
• Removing containers
• Creating your own images
• Understanding container state
• Copying to and from containers
• Running processes in existing containers
• Restricting access to process, memory, disk and network
• Getting runtime statistics

Dockerfiles

• Building images from Dockerfiles
• Understanding the Dockerfile format
• Understanding union/overlay filesystems
• Best practices in building Dockerfiles
• A few case studies
• Dockerizing a Spring Boot application
• Multi-stage Docker builds
• Building images from "scratch"

Docker Daemon

• Binding the daemon to a different host/port
• Interacting remotely with the daemon

Networking

• The docker0 interface
• Understanding bridge, overlay, host and null networks
• Creating custom networks
• Communication between containers via container names
• Binding container ports to the host
• Communicating across nodes
• Service discovery and problems with Docker networks

Managing data in Containers

• Working with data in containers
• Docker volumes
• Mounting files and directories
• Backup, Restore and Migrate volumes
• Case study - Mounting the MySQL data directory
• Challenges of migrating volumes across nodes

Other Docker Projects

• Docker Compose
• Docker Swarm
• Docker Machine
• Comparison to Kubernetes
• Comparison to Amazon Elastic Container Service and Fargate

Understanding the evolution of containers

• cgroups and namespaces
• chrooting
• LXC
• The problem that Docker solved
• Standardization efforts around container runtimes
• Security issues with containers
• Birth of alternative container runtimes
• Firecracker, Kata Containers, gVisor, Unikernels and the like

Microservices Architecture in Depth

• Comparing Microservices to Monolithic architectures
• Pros and cons of microservices architecture
• Complexities of microservice architectures
• 12 factor application development
• Common pitfalls when migrating from Monolith to Microservices

Operational Readiness

• Handling scale with microservices architecture
• Handling failures and performing failovers in microservices architecture
• Logging, tracing and monitoring in microservices architecture
• Testing for operational readiness

Microservices architectural patterns (concepts)

• Challenges of building and maintaining microservices applications
• Service discovery
• Circuit breaker
• Routing and proxies
• Load balancing – internal and external
• Ingress controllers
• API gateway