Docker Administration and Operations («DOCKER»)

• Understanding the building blocks of the Linux containers
• Configuring and running the Docker daemon
• Running containers with various options
• Building Docker images
• Setup of an image registry
• Using Docker Machine to deploy Docker hosts
• Using Docker Compose to build and deploy complex applications
• Setup of a Swarm cluster
• Deploy services and applicative stacks on a Swarm
• Using various storage options
• Understanding the default security components available in Docker
• Understanding of how containers can communicate with each other
• Setup of a supervision stack
• Using a centralized log management solution
• Setup of a simple CI/CD pipeline

1. Quick Wins
   • Some examples of the immediate benefits brought by using Docker
2. Useful concepts
   • Linux containers' building blocks
   • Containers vs Virtual Machines
   • Micro-services architecture
   • Cloud Native application
   • DevOps
3. The Docker platform
   • Client / server architecture
   • Essentials concepts
   • Installation
   • Online playground
   • Exercises :
     • Installation
     • First command on «Play With Docker»
4. Docker containers
   • Container creation
   • Ports publication
   • Bind-mount
   • Resources limitation
   • Base commands
   • Useful aliases
   • Exercises :
     • Containers creation
     • Base commands
5. Docker images
   • Definition
   • Union filesystem & Copy-On-Write
   • Dockerfile
   • Images creation
   • Multi-stages build
   • Cache
   • Build context
   • Base commands
   • Exercises :
     • Images creation
     • Review of Dockerfile's instructions
     • Usage of the multi-stage build
6. Registry
   • Usage
   • Various providers
   • Docker Hub
   • Registry Open Source
   • Docker Trusted Registry
   • Exercises :
     • Setup and configuration of the open source registry
7. Storage
   • Container and data persistence
   • Volumes
   • Volume drivers
   • Storage orchestration with REX-Ray
   • Exercises :
     • Volume creation
     • Ceph cluster with REX-Ray
8. Docker Machine
   • Usage
   • Commands
   • Host creation
   • Communication with a remote host
   • Exercises :
     • Creation of a host on VirtualBox
     • Creation of a host on a cloud provider
9. Docker Compose
   • Usage
   • Docker-compose.yml file format
   • Docker-compose binary
   • Deployment of the VotingApp as a Docker Compose application
   • Usage in development
   • Exercises :
     • Deployment of a stack Elastic
10. Docker Compose
    • Presentation
    • The docker-composes.yml file format
    • Basic instructions
    • The docker-composing binary and its use
    • Practical work:
      • Deploying applications with Docker Compose
      • Example with an Elastic stack
11. Orchestration
    • Docker Swarm
    • Role of the nodes
    • Services deployment
    • Rolling update and rollback
    • Secrets and Configs
    • Stack
    • Management interfaces
    • Exercises :
      • Setup a Swarm on a cloud provider
      • Creation of Services
      • Creation of a Stack
      • Usage of Secrets and Configs
12. Network
    • Container Network Model
    • Network drivers
    • Networks on a single host
    • Networks in a Swarm
    • Routing mesh
13. Security
    • Isolation and resources limitation
    • Linux Security Modules
    • Capabilities / Seccomp
    • Vulnerability scanning
    • Content Trust
    • Security in a Swarm
14. Log management
    • Best practices
    • Log drivers
    • Exercises :
      • Send logs entries to an Elastic stack
      • Send logs entries to Sumologic cloud solution
15. Monitoring
    • Prometheus stack
    • Netdata
    • Exercises :
      • Deployment of a Prometheus stack
16. CI/CD
    • Principles
    • Workflow
    • Setup with GitLab
17. Docker Enterprise
    • Overview
    • Deployment on a cloud provider
    • Demo

This training is made up of several parts. Each part contains some theory, demos, and practical exercises.

This course is targeted at people who wish to become a qualified Docker professional in the administration and operation of this first platform of software containers.

Attendees must be used to the Linux command line.