Docker with Kubernetes Administration

Upon completion of the Docker with Kubernetes Administration course, students will be prepared for the official Certified Kubernetes Administrator (CKA) exam of the Cloud Native Computing Foundation (CNCF).
 

• System administrators and Devops professionals who want to understand and use Docker and Kubernetes in enterprise and cloud environments.

• Proficiency with the Linux CLI (GL120 'Linux Fundamentals).
• A broad understanding of Linux system administration (GL250 'Enterprise Linux Systems Administration')

CONTAINER TECHNOLOGY OVERVIEW

• Application Management Landscape
• Application Isolation
• Resource Measurement and Control
• Container Security
• Container Security
• Open Container Initiative
• Docker Ecosystem
  • LAB TASKS
• Container Concepts runC
• Container Concepts Systemd

INSTALLING DOCKER

• Installing Docker
• Docker Architecture
• Starting the Docker Daemon
• Docker Daemon Configuration
• Docker Control Socket
• Enabling TLS for Docker
• Validating Docker Install
  • LAB TASKS
• Installing Docker
• Install Docker via Docker Machine
• Protecting Docker with TLS

MANAGING CONTAINERS

• Creating a New Container
• Listing Containers
• Viewing Container Operational Details
• Running Commands in an Existing Container
• Interacting with a Running Container
• Stopping, Starting, and Removing Containers
• Copying files in/out of Containers
• Inspecting and Updating Containers
  • LAB TASKS
• Managing Containers
• Configure a docker container to start at boot.

MANAGING IMAGES

• Docker Images
• Listing and Removing Images
• Searching for Images
• Downloading Images
• Committing Changes
• Uploading Images
• Export/Import Images
• Save/Load Images
  • LAB TASKS
• Docker Images
• Docker Platform Images

CREATING IMAGES WITH DOCKERFILE

• Dockerfile
• Caching
• docker image build
• Dockerfile Instructions
• ENV and WORKDIR
• Running Commands
• Getting Files into the Image
• Defining Container Executable
• Best Practices
  • LAB TASKS
• Dockerfile Fundamentals

DOCKER VOLUMES

• Volume Concepts
• Creating and Using Internal Volumes
• Managing Volumes
• Changing Data in Volumes
• Removing Volumes
• Backing up Volumes
• 5 Considerations
• Mapping Devices
  • LAB TASKS
• Docker Volumes

DOCKER COMPOSE/SWARM

• Concepts
• Compose CLI
• Defining a Service Set
• Docker Swarm Proxy (Legacy)
• Docker Engine Swarm Mode (Modern)
• Creating a Swarm
• Creating Services
  • LAB TASKS
• Docker Compose
• Docker Swarm Proxy
• Docker Engine Swarm Mode

DOCKER NETWORKING

• Overview
• Data-Link Layer Details
• Network Layer Details
• Hostnames and DNS
• Service Reachability
• Container to Container Communication
• Container to Container: Links
• Container to Container: Private Network
• Managing Private Networks
• Remote Host to Container
• Multi-host Networks with Overlay Driver
  • LAB TASKS
• Docker Networking
• Exposing Ports
• Docker Links
• Docker Networking
• Multi-host Networks

DOCKER REGISTRY

• Docker Registry
• Docker Registry (secured)
• Docker Content Trust

KUBERNETES INTRO AND CONCEPTS

• Cloud Computing in General
• Cloud Types
• Cloud Native Computing
• Application Containers
• Containers on Linux
• Container Runtime
• Container Orchestration
• Kubernetes
• Concepts, Objects Categories, and Architecture
• Kubernetes Master
• Kubernetes Note

LAB TASKS

• Health Check
• Understanding Linux Namespaces
• Basic Docker Functionalities

INSTALLING KUBERNETES

• Picking the Right Solution
• One Node Kubernetes Install
• Kubernetes Universal Installer
• Install Using kubeadm
• Kubernetes Networking
  • LAB TASKS
• Check Kubernetes Status
• Run the First Pod

ACCESSING KUBERNETES

• Accessing the Kubernetes Cluster
• Controlling Access to the API
• Authorization
• Role Based Access Control
• Roles and ClusterRoles
• Role Bindings
  • LAB TASKS
• Browse the Kubernetes API
• Use RBAC to Control Access to the API

KUBERNETES WORKLOADS

• The Pod
• RestartPolicy Examples
• InitContainers
• Operations on Pods
• Replication Controller
• Working with Replication Controller
• Deployments
• Working with Deployments
• Jobs, CronJobs
• Jobs Example
• CronJobs Example
• DaemonSets
  • LAB TASKS
• Pods Operations
• Replication Controller Operations
• Working with Deployments
• Using Jobs
• Using DaemonSets

SCHEDULING AND NODE MANAGEMENT

• The Kubernetes Scheduler
• Assigning Pods to Nodes
• Assigning Pods to Nodes – Node Affinities
• Assigning Pods to Nodes – Pod Affinities
• Taints and Tolerations
• Managing Nodes
  • LAB TASKS
• Scheduling Pods to Nodes
• Using Affinities

ACCESSING THE APPLICATIONS

• Services
• Service Types
• Working with Services
• Ingress
• Ingress Definition
• Working with Ingress
• Network Policies
• Network Policy Example
  • LAB TASKS
• Working with Services
• Working with Ingress

PERSISTENT STORAGE IN KUBERNETES

• Volumes
• Volume Example
• Volume Types
• Persistent Volumes
• Persistent Volume Example
• Secrets
• Using Secrets as Environmental Variables
• Using Secrets as Volumes
• ConfigMaps
  • LAB TASKS
• Share a Volume in Two Containers
• Set the Root Password for a Mysql Pod Using Secrets
• Use ConfigMap to Pass a File to a Pod

LOGGING, MONITORING, AND TROUBLESHOOTING

• Logging Architecture
• Monitoring
• Troubleshooting
  • LAB TASKS
• Investigate the Logging in Kubernetes
• Monitoring Kubernetes
• Upgrading Kubernetes