Start working with containers in our Classroom and Online DO188 Training at WebAsha Technologies. The course is based on RHEL 10, Podman 5 and OpenShift 4.22and teaches the hands-on container skills tested in the EX188 exam.
Training overview:
The DO188 training covers the basics of container-based application development: how containers work, running and managing them with Podman, finding and managing images in registries, building custom images, keeping data, troubleshooting, Compose and a first look at Kubernetes and OpenShift. You practise each of these in labs until you can run, manage and troubleshoot a containerized application yourself.
Intended audience:
This course suits application developers, DevOps beginners and IT professionals who are new to containers and want to learn them properly before moving on to the OpenShift developer courses.
Topics covered:
-
Understand containers: Describe how containers help application development.
-
Run containers with Podman: Run, stop, inspect and manage containers with Podman 5.
-
Work with images: Search container registries, then pull, tag and manage images.
-
Build custom images: Write a Containerfile (Dockerfile) and build an image that packages an application.
-
Persist data: Use volumes so that database containers keep their data.
-
Troubleshoot containers: Read container logs and set up a remote debugger.
-
Compose and orchestration: Run multi-container applications with Compose, then see how Kubernetes and OpenShift orchestrate containers.
Requirements:
You should be comfortable in a Linux terminal and able to run basic operating-system commands. Online participants need a stable internet connection and a laptop or desktop for the container labs.
Prerequisites:
Red Hat recommends some experience with web application architectures, practice in a Linux terminal and familiarity with shell scripting. RHCSA is not on that list, so DO188 does not require RHCSA.
Career benefits:
Most cloud-native roles expect you to know containers. DO188 and EX188 lead to Application Developer, DevOps Engineer and Container Specialist roles. In India, related roles typically pay ₹5 LPA to ₹20+ LPA as you move on to the OpenShift developer certifications.