📘 Docker Tutorial Series: Complete Roadmap

Level 1: Beginner (Foundations)

1. Introduction to Docker & Containers
   • Why Docker matters
   • Containers vs Virtual Machines
   • Real-life analogies
2. Installing Docker on Windows, Mac, and Linux
   • Step-by-step setup with screenshots
   • First “Hello World” container
3. Docker Architecture Explained
   • Docker Engine
   • Images, Containers, Registries
   • How Docker works under the hood
4. Basic Docker Commands Every Beginner Should Know
   • docker run, docker ps, docker stop, docker rm
   • Hands-on examples
5. Working with Docker Images
   • Pulling images from Docker Hub
   • Creating and managing your own images

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Level 2: Intermediate (Practical Usage)

6. Dockerfile: Writing Your First Container Recipe
   • FROM, RUN, COPY, CMD explained
   • Building custom images
7. Docker Volumes & Data Persistence
   • Why containers lose data
   • Storing data permanently with volumes
8. Networking in Docker
   • Container-to-container communication
   • Exposing ports
9. Docker Compose: Managing Multiple Containers
   • Writing a docker-compose.yml
   • Running web + database apps together
10. Real-World Example: Running a Web App with Docker

• Simple Node.js/Python app in a container
• Connecting app + database

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Level 3: Advanced (Scaling & Orchestration)

11. Container Orchestration Basics

• Why we need orchestration
• Docker Swarm vs Kubernetes

12. Kubernetes 101 for Docker Users

• Pods, Services, Deployments
• Running your first container in Kubernetes

13. Scaling Applications with Docker & Kubernetes

• Horizontal scaling
• Load balancing

14. Docker Security Best Practices

• Minimizing image size
• Avoiding root containers
• Using trusted images

15. CI/CD with Docker

• Using Docker in GitHub Actions / GitLab CI
• Automating builds and deployments

16. Deploying to the Cloud

• Running Docker containers on AWS, GCP, or Azure
• Using managed Kubernetes services (EKS, GKE, AKS)

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Final Project: End-to-End Deployment 🚀

• Build a sample web application (frontend + backend + database)
• Containerize it with Docker
• Use Docker Compose locally
• Deploy it to Kubernetes in the cloud

Also Read

The below rest of the articles give you the more information about the Docker and OAuth in PinFederate. You may love reading them.

• Docker Introduction
• Components of OAuth 2.0 in PingFederate
• Understanding OAuth Grants: Types, Flows, and Applications
• Authorization Code Grant Flow in OAuth 2.0
• OAuth Implicit Flow in PingFederate
• Authorization Code with PKCE Flow | PingFederate
• Client Credentials Grant Type in OAuth 2.0
• Resource Owner Password Credentials (ROPC) Grant Flow in OAuth 2.0
• Refresh Tokens in PingFederate OAuth 2.0
• OAuth 2.0 Introspection Endpoint
• PingFederate OAuth 2.0 UserInfo Endpoint
• PingFederate OAuth 2.0 Token Revocation Endpoint
• Exploring OpenID Connect (OIDC) in PingFederate
• Device Authorization Grant
• An Introduction to Identity and Access Management
• SP-Initiated SSO Flow
• Understanding the SAML Authentication Flow for IDP Initiated SSO
• Understanding the SAML SP-Initiated Single Logout (SLO) Flow
• LDAP Overview: Architecture, Terminologies, and Data Storage
• Adding an OAuth AC Client in PingFederate,getting endpoint token and authorization code token,json web token
• PKCE WITH OAUTH 2.0 IN PING FEDERATE
• Implicit Grant in PingFederate ,postman token and json web token
• (ROPC)Resource owner password credentials in ping federate,postman and json web tokens
• (OIDC)Open ID Connect in ping federate,obtaining postman token and json web token