Docker Fundamentals

Overview You will learn the difference between the container and the virtual machine. This course will take you through the life cycle of the container and the various stages of development. Moreover, this course will train you to install Docker on various platforms, will create your first container, image, push and pull to the registry hub, will learn how to install your own local registry, volumes, container networking, orchestrating containers, and will learn how to debug your containers. You will build an HTTP server image, run as a service, and connect to it. Also, Finally, you will learn how to create a swarm and prepare your containers for production. Class Audience This class is for developers, operation managers, and IT professionals who would like to learn Docker. Prerequisites No prior knowledge of Docker is required. Docker is open-source, so no subscriptions are required. Number of Days 3 days COURSE OUTLINE Getting started with Docker What is Docker? What is the difference between VM and Containerization? Installing Docker Docker Architecture Docker Flow Download your first image Run your first container Terminology Working with Docker image Working with interactive container Handling Docker Containers Controlling Docker Container Detach Docker Container Lifecycle Housekeeping commands Docker's integrated image building system Docker logs Building images Docker's integrated image building system A quick overview of the Dockerfile's syntax Dockerfile build instructions How to remove images How to remove containers Best practices for writing Dockerfiles and Multi-Stage Builds Publishing image Understanding the Docker Hub How to push images to the Docker Hub Automatic building of images Private repositories on the Docker Hub Creating organizations on the Docker Hub Running your private Docker infrastructure The Docker registry and index Docker registry use cases Run your own index and registry Push the image to a newly created registry Running services in a container Overview of container networking User-Defined Networks Envisaging Container as a Service (CaaS) Exposing container services Retrieving the container port Sharing data volumes Stateful versus Stateless Container/Services Docker Volumes and Stateful Persistence Volume’s Types Anonymous Volumes—Within Container’s scope Named Volumes—Outside Container’s scope Sharing volumes between containers Sharing volumes between host and container Running a PostgreSQL Container with a Volume Filesystem vs. Volume Orchestrating containers User-defined networks Orchestrating Example of docker-compose Testing with Docker What is CI/CD? Integrating Docker testing into Jenkins (CI/CD) Debugging containers Namespaces Process level isolation Network Namespace Mount Namespace Control groups Docker debugging commands Securing Docker containers Non-root privilege in Dockerfile Is Docker secure? Best practices for container security Swarms Set up your cluster Scale your app to run on more nodes Distribute your app across a cluster Nodes Types and Load-balancing