Docker Security – 3 Days

(c) CC0 Public Domain /

Course Description:

The course offers a hands-on overview and theory of important security features and best practices to protect containerized services and hosts. You will learn how to effectively use Docker to build secure and performant container images, how Linux containers are constructed and secured, including cgroups, namespaces, apparmor, seccomp filtering and many more. Also, you will learn about container clustering and orchestration with Docker Swarm.

All these features will be explained and demonstrated with hands on examples in the practice lab.

Note: Every student has assigned to him his own virtual lab environment setup.

What will you learn:

After completing this course, students will have a firm understanding of many techniques for effectively assessing the security of container images and how to defend them. 

Target audience:

  • Developer
  • Operations
  • DevOps
  • Architects


  • strong grasp of Docker (recommended training: Docker Basic and Docker Advanced)

Nice to have:

  • required skills include running Unix commands, navigating the file system, and creating and editing text files


Module 1: Docker Recap

  • Age of Virtualization
  • Why Containers?
  • Docker History
  • Containerization
  • OS Components (Namespaces, Control Groups)
  • Docker Engine
  • Containers and VMs
  • Docker Versions
  • Docker Update Channels
  • Installing Docker on Linux with steps
  • Docker Images
  • Image Contents
  • Image Layers
  • Multiple architectures support
  • Image registry
  • Image security
  • Repositories
  • Docker Commands
  • Running and stopping containers
  • Network types
  • Working with networks
  • Testing the network
  • Persistent Storage in Docker
  • Creating and mounting a volume
  • Listing, inspecting and deleting volumes
  • Logging Docker
  • Explaining different log types

Module 2: Secure Docker Connectivity

  • Docker hub image vulnerabilities
  • Possible attack vectors
  • How does Docker handle security?
  • Different layers of security
  • Secure Docker connectivity overview
  • TLS explained
  • What is a Certificate Authority?
  • Configuring secure Docker connectivity with steps

Hands-on Lab: Secure Docker Connectivity

Module 3: Secure Docker Registry

  • What is Docker Registry?
  • Securing a Docker registry
  • Authorization Options
  • Basic authentication configuration
  • Token-based authentication configuration

Hands-on Lab: Deploying a Secure Docker Registry

Module 4: Role-Based Access Control

  • Using authorization and roles
  • Docker’s Plugin API for RBA
  • Enabling the authorization plugin
  • Open Policy Agent (OPA) Configuration

Hands-on Lab: Implementing RBAC using AuthN and AuthZ in Docker

Module 5: Docker Swarm

  • What is Docker Swarm?
  • Docker Swarm components explained
  • Docker CLI Cluster commands
  • Docker Swarm Security
  • Bootstrapping a Warm Cluster
  • Secrets in a Swarm Cluster with Secret rotation
  • Autolock in Warm Clusters
  • Backing up and recovering a Swarm Cluster

Hands-on Lab: Docker Swarm Installation and Secure Docker Swarm cluster

Module 6: Networking

  • Network types
  • Working with networks
  • Testing the network

Hands-on Lab: Docker Networking

Module 7: Managing Secrets

  • What are secrets
  • How to manage Docker Secrets

Hands-on Lab: Managing Secrets

Module 8: Content Trust

  • Docker Content Trust
  • Image Tags signed or not signed
  • Docker Content Trust Key
  • Signing Images with DCT
  • What is Notary

Hands-on Lab: Docker Content Trust

Module 9: Linux capabilities

  • What are Linux Capabilities?
  • Dropping capabilities
  • Using pscap tool
  • Whitelisting
  • Listing capabilities

Hands-on Lab: Linux Kernel Capabilities

Module 10: Controlling Access to Resources with Control Groups

  • Control Group
  • Control Group Subsystems, hierarchy
  • Managing cgroup for Containers
  • Cgroup Parent Context
  • Docker Cgroup Resource Limits

Hands-on Lab: Docker and Cgroups

Module 11: AppArmor

  • Linux Security Models
  • AppArmor explained
  • Developing an AppArmor Profile
  • Docker and AppArmor Profiles
  • Debugging AppArmor

Hands-on Lab: AppArmor and Docker

Module 12: Seccomp

  • How does Docker use Seccomp?
  • Creating a custom Seccomp profile
  • Using custom profiles for all containers
  • Using the Whitelist

Hands-on Lab: Seccomp

Module 13: SELinux

  • SELinux explained
  • SELinux Policy, labeling and type enforcement
  • Enable SELinux in Docker
  • Changing SELinux behavior per Container

Hands-on Lab: SELinux

Module 14: DDos

  • Security approach of DoS Attacks

Hands-on Lab: Docker DDoS attacks performance

Module 15: Tools for security

  • Docker bench
    • What is Docker Bench
    • Docker Bench Options
  • InSpec
    • What is InSpec
    • InSpec Install
    • Running Chef InSpec
    • InSpec Profile Structure
    • InSpec Community Profiles
  • Anchore
    • How does Anchore work
    • Ancore Engine
    • Installing Anchore Engine
    • Using Anchore
  • Jenkins pipelines
    • Continuous integration flow
    • Continuous delivery flow
    • Continuous deployment flow
    • What is Jenkins?
    • What is a pipeline?
    • Securing Jenkins CI/CD Pipeline with Anchore
  • Dagda
    • What is Dagda?
    • Installing and running Dagda
    • Dagda database
    • Analyzing docker images/containers
    • Monitoring running containers
    • Getting Docker daemon events
  • Sysdig Falco
    • What is Sisdig?
    • What is Falco?
    • Falco rules
    • Installing Falco
    • Running Falco as a daemon

Hands-on Lab: Docker Bench

Hands-on Lab: InSpec

Hands-on Lab: Anchore

Hands-on Lab: Create a Jenkins pipeline for docker image security scanning with anchore

Hands-on Lab: Dagda

Hands-on Lab: Sysdig Falco

Module 16: Best Practices

  • Secure the build pipeline
  • Secure the Network
  • Secure the Host
  • Secure the Container Runtime
  • Secure the Orchestrator Config
  • Secure the Data


Additional details:

To attend this course, you need to have:

  • PC/Laptop with internet access

Updated web browser

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