GL355 Docker with Kubernetes Administration
This course combines the GL340 Docker and KBS101 Kubernetes Administration courses.Participants will first understand the core features of Docker including: container creation and management, interacting with Docker hub, using Dockerfile to create and manage custom images, advanced Docker networking (how to safely expose container services to the world, and link containers), the use of Docker volumes to manage persistent data, and Docker Compose [..]
Online Virtual Class
Audience
System administrators and Devops professionals who want to understand and use Docker and Kubernetes in enterprise and cloud environments.
Prerequisites
- Proficiency with the Linux CLI (GL120 "Linux Fundamentals).
- A broad understanding of Linux system administration (GL250 "Enterprise Linux Systems Administration")
Duration
Five days
Outline for Docker with Kubernetes Administration
Chaper 1. 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
Chapter 2. 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
Chapter 3. 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.
Chapter 4. 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
Chapter 5. 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
Chapter 6. Docker Volumes
- Volume Concepts
- Creating and Using Internal Volumes
- Managing Volumes
- Changing Data in Volumes
- Removing Volumes
- Backing up Volumes
- SELinux Considerations
- Mapping Devices
Lab Tasks
- Docker Volumes
Chapter 7. 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
Chapter 8. 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
Chapter 9. Docker Registry
- Docker Registry
- Docker Registry (secured)
- Docker Content Trust
Chapter 10. 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
Chapter 11. 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
Chapter 12. 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
Chapter 13. 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
Chapter 14. 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
Chapter 15. 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
Chapter 16. 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
Chapter 17. Logging, Monitoring, and Troubleshooting
- Logging Architecture
- Monitoring
- Troubleshooting
Lab Tasks
- Investigate the Logging in Kubernetes
- Monitoring Kubernetes
- Upgrading Kubernetes