Red Hat OpenShift Development I: Introduction to Containers with Podman and Exam (DO189)

Course code: DO189

A developer introduction to building and managing containers with Podman for deploying applications on Red Hat OpenShift.

Red Hat OpenShift Development I: Introduction to Containers with Podman (DO188) introduces students to building, running, and managing containers with Podman and Red Hat OpenShift Container Platform. This course helps students build the core skills for developing containerized applications through hands-on experience. The Red Hat Certified Specialist in Containers esma (EX188) is included in this offering.

This course is based on Red Hat® Enterprise Linux® 9, Podman 4.4 and Red Hat OpenShift® 4.14.

Course content summary

  • Introduction to containers
  • Run containers with Podman CLI and Podman Desktop
  • Build custom container images
  • Manage container images
  • Remote debugging with containers
  • Basic container networking
  • Persist data with containers
  • Run multi-container applications
  • Troubleshoot Container Deployments
  • Orchestrate containers with OpenShift and Kubernetes
2 237 EUR

2 707 EUR including VAT

The earliest date from 01.07.2024

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Course dates

Starting date: 01.07.2024

Type: Virtual

Course duration: 3 days

Language: en

Price without VAT: 2 237 EUR

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Starting date: 22.07.2024

Type: Virtual

Course duration: 3 days

Language: en

Price without VAT: 2 237 EUR

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Starting date: 29.07.2024

Place : Praha

Type: In-person

Course duration: 3 days

Language: cz/sk

Price without VAT: 2 237 EUR

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Starting date: Upon request

Type: In-person/Virtual

Course duration: 4 days

Language: en/cz

Price without VAT: 2 237 EUR

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Starting
date
Place
Type Course
duration
Language Price without VAT
01.07.2024 Virtual 3 days en 2 237 EUR Register
22.07.2024 Virtual 3 days en 2 237 EUR Register
29.07.2024 Praha In-person 3 days cz/sk 2 237 EUR Register
Upon request In-person/Virtual 4 days en/cz 2 237 EUR Register
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Target group

  • Administrators, architects, software developers, and anyone responsible for creating, managing, or using containers, including those who want to demonstrate their understanding of the key concepts and processes underlying the use of containers in modern software.
  • Developers who wish to containerize software applications.
  • Administrators who are new to container technology and container orchestration.
  • Architects who are considering using container technologies in software architectures.
  • Site reliability engineers who are considering using Kubernetes and Red Hat OpenShift.

Course structure

You should be able to demonstrate these skills and abilities:

Implement images using Podman
  • Understand and use FROM (the concept of a base image) instruction.
  • Understand and use RUN instruction.
  • Understand and use ADD instruction.
  • Understand and use COPY instruction.
  • Understand the difference between ADD and COPY instructions.
  • Understand and use WORKDIR and USER instructions.
  • Understand security-related topics.
  • Understand the differences and applicability of CMD vs. ENTRYPOINT instructions.
  • Understand ENTRYPOINT instruction with param.
  • Understand when and how to expose ports from a Containerfile.
  • Understand and use environment variables inside images.
  • Understand ENV instruction.
  • Understand container volume.
  • Mount a host directory as a data volume.
  • Understand security and permissions requirements related to this approach.
  • Understand the lifecycle and cleanup requirements of this approach.
Manage images
  • Understand private registry security.
  • Interact with many different registries.
  • Understand and use image tags
  • Push and pull images from and to registries.
  • Back up an image with its layers and meta data vs. backup a container state.
Run containers locally using Podman
  • Run containers locally using Podman
  • Get container logs.
  • Listen to container events on the container host.
  • Use Podman inspect.
  • Specifying environment parameters.
  • Expose public applications.
  • Get application logs.
  • Inspect running applications.
Run multi-container applications with Podman
  • Create application stacks
  • Understand container dependencies
  • Working with environment variables
  • Working with secrets
  • Working with volumes
  • Working with configuration
Troubleshoot containerized applications
  • Understand the description of application resources
  • Get application logs
  • Inspect running applications
  • Connecting to running containers

As with all Red Hat performance-based exams, configurations must persist after reboot without intervention.

During the exam you may be required to work with one or more pre-written applications. You will not be required to modify application code however in some cases you may need to utilize supplied documentation in order to produce a new deployment of a given application.

Prerequisites

  • Have taken Red Hat OpenShift Developer I: Introduction to Containers with Podman (DO188) or have comparable work experience
  • Some experience in the use of a Linux terminal session, issuing operating system commands, and familiarity with shell scripting is benficial. A Red Hat Certified System Administrator (RHCSA) certification is recommended but not required.
  • Review the exam objectives

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