Red Hat OpenShift Administration III: Scaling Kubernetes Deployments in the Enterprise (DO380) Course Overview

Red Hat OpenShift Administration III: Scaling Kubernetes Deployments in the Enterprise (DO380) Course Overview

The Red Hat OpenShift Administration III: Scaling Kubernetes Deployments in the Enterprise (DO380) course is designed for system administrators, architects, and developers who want to manage OpenShift at scale. This advanced training focuses on enabling participants to Automate OpenShift installations, Manage OpenShift operators, Implement GitOps, and Integrate with enterprise authentication systems.

By completing this course, learners will gain the skills necessary to become a Red Hat Certified OpenShift Administrator. They will understand how to move from Kubernetes to OpenShift by Deploying native applications, automate tasks, Configure trusted TLS certificates, Manage dedicated node pools, and ensure Cluster stability with persistent storage solutions. Moreover, they will learn to Monitor, log, and recover cluster components effectively.

Through hands-on labs and real-world scenarios, participants will be equipped to Scale and troubleshoot OpenShift clusters, preparing them for the challenges of Enterprise environments, and potentially to take the EX380 Red Hat exam for certification.

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Course Prerequisites

To ensure a successful learning experience in the Red Hat OpenShift Administration III: Scaling Kubernetes Deployments in the Enterprise (DO380) course, participants should meet the following minimum prerequisites:


  • Basic familiarity with container technology, such as Docker, and container orchestration with Kubernetes.
  • Completion of the Red Hat OpenShift Administration I (DO280) course or equivalent experience in OpenShift administration, covering core OpenShift concepts, basic application deployment, and management.
  • Understanding of enterprise Linux administration, including the use of command-line tools and file editing (e.g., using vim or nano).
  • Knowledge of basic networking concepts (e.g., TCP/IP, DNS) and Linux system administration tasks such as managing services and system configuration.
  • Experience with basic bash scripting to automate tasks in a Linux environment.
  • Familiarity with Ansible for automation is beneficial but not required.

These prerequisites are designed to ensure that learners have the foundational knowledge and skills necessary to grasp the advanced topics covered in the DO380 course. With these competencies, students will be better prepared to engage with the course material and apply their learning to real-world OpenShift and Kubernetes environments.


Target Audience for Red Hat OpenShift Administration III: Scaling Kubernetes Deployments in the Enterprise (DO380)

  1. The DO380 course equips IT professionals with advanced skills to scale Kubernetes deployments in enterprise environments using OpenShift.


  2. Target audience for the Red Hat OpenShift Administration III: Scaling Kubernetes Deployments in the Enterprise (DO380) course:


  • DevOps Engineers
  • System Administrators
  • IT Automation Engineers
  • Cloud Infrastructure Engineers
  • Site Reliability Engineers (SREs)
  • Cloud Architects
  • Software Developers with a focus on containerization and orchestration
  • OpenShift Administrators
  • Kubernetes Operators
  • IT Professionals aiming to specialize in containerization and Kubernetes orchestration
  • Security Engineers responsible for enterprise authentication and TLS certificate management
  • Storage Administrators working with persistent storage for containerized applications
  • Network Engineers interested in container networking and OpenShift cluster configurations
  • Technical IT Managers overseeing containerization and deployment strategies
  • IT Operations staff responsible for monitoring and logging within Kubernetes environments


Learning Objectives - What you will Learn in this Red Hat OpenShift Administration III: Scaling Kubernetes Deployments in the Enterprise (DO380)?

Introduction to Learning Outcomes:

The DO380 course equips students with the advanced skills needed for scaling Kubernetes deployments in an enterprise environment using OpenShift, including automation, operator management, GitOps, and more.

Learning Objectives and Outcomes:

  • Understand the congruence between Kubernetes and OpenShift by deploying Kubernetes-native applications within the OpenShift environment.
  • Acquire the ability to automate OpenShift tasks using both bash scripts and Ansible playbooks for efficient administration.
  • Gain proficiency in deploying and managing Kubernetes Operators and configuring OpenShift cluster operators to maintain a robust infrastructure.
  • Implement a GitOps workflow using Jenkins to streamline and automate the administration of OpenShift clusters.
  • Learn to integrate OpenShift with enterprise identity providers to configure enterprise-grade authentication systems.
  • Configure OpenShift to use trusted TLS certificates, ensuring secure external access to cluster services and applications.
  • Master the creation of dedicated node pools with custom configurations for specialized workload support in OpenShift.
  • Develop the skills to configure persistent storage solutions, including storage providers and storage classes, for consistent user access.
  • Effectively configure and manage the OpenShift monitoring stack to keep track of cluster health and metrics.
  • Deploy and manage cluster-wide logging, enabling the ability to query and troubleshoot logs to maintain cluster integrity and performance.
  • Troubleshoot and recover from worker node failures, enhancing the ability to maintain cluster reliability and uptime in various scenarios.

Technical Topic Explanation

Red Hat OpenShift

Red Hat OpenShift is a Kubernetes-based platform that allows developers to build, deploy, and manage containerized applications easily. It automates many traditional IT tasks which improves efficiency and scalability. As a Red Hat Certified OpenShift Administrator (EX280), you learn skills from course DO380. This qualification demonstrates expertise in installing and managing OpenShift, making it valuable for those involved in OpenShift administration. This certification is specifically detailed in exam EX280, focusing on hands-on, practical skills required for setup, troubleshooting, and day-to-day management of OpenShift environments.

Kubernetes

Kubernetes is a system used to manage containerized applications across a cluster of machines. It ensures that your application runs efficiently by automating application deployment, scaling, and management. This system leverages a framework to cluster together groups of hosts running Linux containers, and it helps you efficiently manage those clusters. Kubernetes simplifies tasks like rolling updates or rollbacks, CPU and memory tracking, and log access and monitoring. It is essential for running large-scale applications, especially when you need to ensure high availability without significant manual intervention from development and operations teams.

Automate OpenShift installations

Automating OpenShift installations streamlines the setup of this powerful containerization platform, essential for managing container deployments. By automating, you use predefined configurations to rapidly and consistently deploy OpenShift across various environments without manual intervention. This process not only saves time but also reduces the potential for human error, ensuring a stable and secure cluster setup. Key courses like DO380 (Red Hat OpenShift Administration II) and certifications like EX380 (Red Hat Certified Specialist in OpenShift Administration exam) can equip professionals with the necessary skills for effective OpenShift administration and automated installations.

Manage OpenShift operators

OpenShift operators simplify OpenShift administration by automating deployment, management, and updating of applications on the OpenShift platform. These operators are designed to capture the expertise of a Red Hat Certified OpenShift Administrator directly into a software component. Managing them typically involves using the Operator Lifecycle Manager (OLM) for installation and updates, ensuring that the cluster and its resources run efficiently. Operators embody advanced operational knowledge, significantly aiding in automating complex tasks and improving system reliability and scalability. This management is essential knowledge for courses like DO380 and certifications such as EX380.

Implement GitOps

GitOps is a methodology that applies DevOps best practices used in application development, such as version control, collaboration, compliance, and CI/CD, to infrastructure automation. By using Git as a single source of truth for declarative infrastructure and applications, teams can automate updates and management by merging pull requests in Git. This approach improves transparency, accountability, and repeatability in deploying and managing infrastructure, particularly in Kubernetes environments like OpenShift. Implementing GitOps not only streamlines deployment processes but also enhances security and consistency across development, testing, and production environments.

Integrate with enterprise authentication systems

Integrating with enterprise authentication systems involves connecting your application or IT environment to a centralized authentication service to manage user identities. This permits users to access multiple applications using one set of login credentials. It enhances security by applying consistent identity verification protocols across the enterprise. This setup is common in environments using platforms like Red Hat OpenShift, where efficient user management and security are crucial. The process includes configuring your environment to communicate with authentication protocols like LDAP, Active Directory, or OAuth, and often involves using management and certification frameworks provided by certifications such as Red Hat Certified OpenShift Administrator (EX280).

Deploying native applications

Deploying native applications involves setting up software specifically designed to run on a particular operating system or platform directly onto devices. This process ensures that the application can fully utilize the device’s hardware and system resources, leading to optimal performance and enhanced user experiences. This deployment method is critical for applications demanding high performance and reliability, as it minimizes compatibility issues and maximizes efficiency. Key considerations include ensuring the application's compatibility with the operating system, managing updates, and securing the application against vulnerabilities.

Configure trusted TLS certificates

Configuring trusted TLS certificates ensures that the communication between your server and clients is secure. TLS, or Transport Layer Security, certificates authenticate and encrypt data exchanged over the network, protecting it from eavesdropping and tampering. When setting up trusted TLS certificates, an administrator needs to obtain these certificates from a reliable Certificate Authority (CA). These certificates confirm the server's identity to the clients connecting to it, increasing trust and enhancing security. This step is crucial in maintaining secure connections, especially in environments like web servers, where sensitive information is frequently exchanged.

Manage dedicated node pools

Dedicated node pools in management, such as in OpenShift administration, are specific groups of servers set aside for particular tasks or applications within a larger cloud infrastructure. By managing dedicated node pools, administrators can optimize resource allocation, enhance performance, and maintain better control over security. These pools allow for specialized configurations and are essential in scenarios requiring consistent performance or isolation from other workloads. This approach is integral to efficient cloud resource management and is especially relevant for businesses committed to maintaining robust and scalable IT operations.

Cluster stability with persistent storage solutions

Cluster stability with persistent storage solutions ensures that data remains safe and accessible, even as the environment changes. In cloud platforms like OpenShift, managing reliable storage systems like Red Hat's persistent storage solutions helps maintain high availability. This is critical for applications that require constant, consistent data access regardless of any disruptions or adjustments within the cluster. Implementing robust storage strategies not only stabilizes the infrastructure but also enhances the overall efficiency and reliability of deployments. These practices are essential for professionals pursuing certifications such as the Red Hat Certified OpenShift Administrator (EX280).

Monitor, log, and recover cluster components

Monitoring, logging, and recovering cluster components are crucial practices in managing a cluster's health and operations. Monitoring involves observing the performance and state of all components within the cluster to ensure they are functioning correctly. Logging is the recording of events and activities within the cluster; it helps in diagnosing issues and understanding system behavior over time. Recovery refers to the processes and methods used to restore failed components and ensure the cluster continues to operate efficiently. These practices are essential for maintaining system reliability and performance, particularly in dynamic environments like those managed using OpenShift administration.

Scale and troubleshoot OpenShift clusters

Scaling and troubleshooting OpenShift clusters involve adjusting the size of the cluster to meet demand and resolving any issues that arise. Scaling can be done either by adding more nodes to increase capacity or by removing nodes to reduce resources. Troubleshooting often requires examining logs, monitoring cluster health, and deploying updates to fix bugs or improve functionality. A thorough understanding of OpenShift administration skills, essential for the Red Hat Certified OpenShift Administrator (EX280), and mastery of course material like DO380 can significantly aid in effectively managing these tasks.

Enterprise environments

Enterprise environments refer to the complex, scalable, and highly regulated setups utilized by large organizations to manage vast amounts of data, applications, and IT resources across multiple platforms and locations. These environments require sophisticated management tools and practices to ensure efficiency, security, and compliance with various standards. Technologies like OpenShift, a Red Hat container application platform, play a crucial role in such settings by allowing professionals to develop, deploy, and manage containerized applications easily and securely, aligning closely with the responsibilities of a Red Hat Certified OpenShift Administrator.

Target Audience for Red Hat OpenShift Administration III: Scaling Kubernetes Deployments in the Enterprise (DO380)

  1. The DO380 course equips IT professionals with advanced skills to scale Kubernetes deployments in enterprise environments using OpenShift.


  2. Target audience for the Red Hat OpenShift Administration III: Scaling Kubernetes Deployments in the Enterprise (DO380) course:


  • DevOps Engineers
  • System Administrators
  • IT Automation Engineers
  • Cloud Infrastructure Engineers
  • Site Reliability Engineers (SREs)
  • Cloud Architects
  • Software Developers with a focus on containerization and orchestration
  • OpenShift Administrators
  • Kubernetes Operators
  • IT Professionals aiming to specialize in containerization and Kubernetes orchestration
  • Security Engineers responsible for enterprise authentication and TLS certificate management
  • Storage Administrators working with persistent storage for containerized applications
  • Network Engineers interested in container networking and OpenShift cluster configurations
  • Technical IT Managers overseeing containerization and deployment strategies
  • IT Operations staff responsible for monitoring and logging within Kubernetes environments


Learning Objectives - What you will Learn in this Red Hat OpenShift Administration III: Scaling Kubernetes Deployments in the Enterprise (DO380)?

Introduction to Learning Outcomes:

The DO380 course equips students with the advanced skills needed for scaling Kubernetes deployments in an enterprise environment using OpenShift, including automation, operator management, GitOps, and more.

Learning Objectives and Outcomes:

  • Understand the congruence between Kubernetes and OpenShift by deploying Kubernetes-native applications within the OpenShift environment.
  • Acquire the ability to automate OpenShift tasks using both bash scripts and Ansible playbooks for efficient administration.
  • Gain proficiency in deploying and managing Kubernetes Operators and configuring OpenShift cluster operators to maintain a robust infrastructure.
  • Implement a GitOps workflow using Jenkins to streamline and automate the administration of OpenShift clusters.
  • Learn to integrate OpenShift with enterprise identity providers to configure enterprise-grade authentication systems.
  • Configure OpenShift to use trusted TLS certificates, ensuring secure external access to cluster services and applications.
  • Master the creation of dedicated node pools with custom configurations for specialized workload support in OpenShift.
  • Develop the skills to configure persistent storage solutions, including storage providers and storage classes, for consistent user access.
  • Effectively configure and manage the OpenShift monitoring stack to keep track of cluster health and metrics.
  • Deploy and manage cluster-wide logging, enabling the ability to query and troubleshoot logs to maintain cluster integrity and performance.
  • Troubleshoot and recover from worker node failures, enhancing the ability to maintain cluster reliability and uptime in various scenarios.
Red Hat OpenShift Administration III: Scaling Kubernetes Deployments in the Enterprise (DO380)