Covers all the 6 domains required in the Docker Certified Associate (DCA) Exam.

The following domains are covered in detail by setting up Docker in various environments like AWS Cloud and local Linux systems.

Domain 1: Orchestration (25% of exam)

Domain 2: Image Creation, Management, and Registry (20% of exam)

Domain 3: Installation and Configuration (15% of exam)

Domain 4: Networking (15% of exam)

Domain 5: Security (15% of exam)

Domain 6: Storage and Volumes (10% of exam)

Domain 1: Orchestration (25% of exam)

Understand Docker Swarm Orchestration

Setup of a swarm mode cluster, with managers and worker nodes

Differences between running a container vs running a service

Lock a swarm cluster

Inspect docker and container using "docker inspect" commands

YAML compose file with "docker stack deploy"

Update/Change a running stack of services

Increase/Decrease # of replicas

Add networks, publish ports

Mount volumes

Differences and use-cases for replicated vs global service

Troubleshoot a service using logs

Applying node labels

Task placement using node labels

Using templates with docker service

Domain 2: Image Creation, Management, and Registry (20% of exam)

Describe Dockerfile options [add, copy, volumes, expose, entrypoint, etc)

Understand Dockerfile and create an efficient image

Use CLI commands such as list, delete, prune, rmi, etc to manage images

Inspect images and report specific attributes using filter and format

Tagging, Pushing, Signing, pulling, adding a file, Modify an image

Modify an image to a single layer

Configure and setup registry,

Display layers of a Docker image

Describe how image layers work

Login, Search, Delete image in a registry

Domain 3: Installation and Configuration (15% of exam)

Setup repo, storage driver, install and upgrade docker-engine in various platforms

Configure logging drivers (splunk, journald, etc)

Setup swarm, configure managers, add nodes, and setup backup schedule

Create and manage user and teams

Sizing requirements for production scenarios

Understand namespaces, cgroups, and configuration of certificates

Use certificate-based client-server authentication to ensure a Docker daemon has the rights to access images on a registry

Setup in AWSinfrastructure along with HA config

Complete configuration of backups for UCP and DTR

Configure the Docker daemon to start on boot

Domain 4: Networking (15% of exam)

Create and setup a bridge network

Publish ports and identify ip to access the containers.

Explore and set up a different type of networks like bridge, host and null network

Describe the different types and use cases for the built-in network drivers

Introduction to DNSand using external DNS

Load balance traffic between containers

Communication between Docker engine, registry, and UCP controllers

Deploy service on a Docker overlay network

Describe the difference between "host" and "ingress" port publishing mode

Domain 5: Security (15% of exam)

Signing image

Enable Docker Content Trust

Configure (Role-Based Access Control) RBAC in UCP

Overview of Integration of UCP with LDAP/AD

Create, download and use UCP client bundles

Securing Docker swarm

Difference between UCP workers and managers

The process to use external certificates with UCP and DTR

Domain 6: Storage and Volumes (10% of exam)

Various graph driver and its usage

Configure device-mapper

Compare object storage to block storage, and explain which one is preferable when available

Different layers in a docker container and how volumes are used with docker for persistent storage

Cleanup unused images in filesystem and Registry

Introduction to Kubernetes and its concepts

Installation and architecture of Kubernetes

Introduction to Pods

Deployment and Service concepts

Label select concepts and its uses

Configmaps Introduction

Secrets and its uses

Namespace Introduction

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