OpenShift for Developers

OpenShift for Developers

Table of Contents

Pre Assessment - 20 Questions

Introduction to OpenShift

  • Overview of OpenShift: A comprehensive platform for developing, deploying, and managing containerized applications.
  • Benefits of Using OpenShift: Scalability, flexibility, and ease of integration with CI/CD pipelines.

Setting Up Your Environment

  • Prerequisites: System requirements and necessary software.
  • Installing OpenShift CLI (oc): Step-by-step guide for installation.
  • Configuring Local Development Environments
    • CodeReady Containers (CRC)
      • What is CRC?: A tool for running OpenShift locally.
      • Setting Up CRC Locally: Installation and configuration.
      • Managing CRC Environments: Commands and best practices.
  • Accessing the OpenShift Web Console: Navigating the UI for managing applications.

Understanding OpenShift Architecture

  • Key Components: Overview of Pods, Services, and Routes.
  • OpenShift vs. Kubernetes: Differences and use cases.

Creating and Managing Applications

  • Building Applications: Development workflows in OpenShift.
  • Source-to-Image (S2I) Process: Automating image creation from source code.
  • Deploying Applications on OpenShift: Methods for deploying applications.

Working with Containers

  • Understanding Containers and Images: Core concepts and terminology.
  • Managing Image Streams: Working with image repositories.
  • Using Dockerfiles and Build Configurations: Customizing builds and images.

Application Scaling and Management

  • Scaling Applications: Manual and automatic scaling techniques.
  • Rolling Updates and Rollbacks: Strategies for updating applications safely.
  • Health Checks and Readiness Probes: Ensuring application reliability.
  • Autoscaling Applications: Implementing horizontal and vertical scaling.

Security in OpenShift

  • Role-Based Access Control (RBAC): Managing user permissions and roles.
  • Securing Applications and Data: Best practices for data security.
  • Network Security Practices: Protecting application communication.
  • Security Contexts and Policies: Configuring security for pods.
    • Service Account: Managing service accounts for security.

Networking in OpenShift

  • Services and Routes: Exposing applications to the network.
  • Configuring Ingress: Managing external access to services.
  • Network Policies: Controlling traffic between pods.

Persistent Storage in OpenShift

  • Working with Persistent Volumes (PVs) and Persistent Volume Claims (PVCs): Managing storage.
  • Storage Classes: Defining different types of storage.

Monitoring and Logging

  • Accessing Application Logs: Viewing logs for debugging.
  • Integrating with Monitoring Tools: Tools for performance monitoring.
  • Setting Up Alerts: Configuring alerts for important events.
  • Metrics Collection and Visualization: Tools and techniques for metrics.

CI/CD Integration

  • Setting Up Pipelines using Jenkins: Automating the build and deployment process.

Best Practices for Development

  • Application Design Patterns: Effective design strategies.
  • Managing Configurations: Keeping configurations organized.

Troubleshooting Applications

  • Common Issues and Solutions: Identifying and resolving frequent problems.
  • Debugging Techniques: Tools and methods for troubleshooting.

Managing Configuration Data

  • Secrets and ConfigMaps
    • Creating and Using Secrets: Storing sensitive information securely.
    • Creating and Using ConfigMaps: Managing non-sensitive configuration data.
    • Best Practices for Managing Sensitive Data: Ensuring security.

Operators in OpenShift

  • What are Operators?: Automating application management.
  • Managing Operators with OperatorHub: Installing and configuring operators.

Scheduling Options

  • Understanding Scheduling in OpenShift: Basics of pod scheduling.
  • Affinity and Anti-Affinity
    • Node Affinity: Specifying node preferences.
    • Pod Affinity: Co-locating pods based on criteria.
    • Pod Anti-Affinity: Avoiding pod co-location.
  • Taints and Tolerations
    • What are Taints and Tolerations?: Managing node availability.
    • Configuring Taints and Tolerations: Best practices.
  • Using NodeSelectors: Directing pods to specific nodes.
  • Scheduling with CronJobs
    • Creating CronJobs for Scheduled Tasks: Automating recurring tasks.

Post Assesment: 30 Questions