DevOps Tutorials

DevOps provides a structured approach to learning modern software development and IT operations practices. Whether you're a beginner or an experienced professional, our DevOps tutorials offer a systematic exploration of key concepts and tools. With free labs and practical code examples, you'll develop skills in continuous integration, deployment, and infrastructure management. Our DevOps playground enables real - time experimentation with various tools and workflows.

Triggering Jenkins Builds with Webhooks

Triggering Jenkins Builds with Webhooks

Simulate a repository webhook with curl, pass branch and commit data into a Jenkins job, and verify the triggered build log.

Upload a Configuration with SCP

Upload a Configuration with SCP

Use the supplied SSH identity to copy one configuration file to a remote account.

Using Jenkins Shared Libraries

Using Jenkins Shared Libraries

Create a local Jenkins shared library, register it from the dashboard, and call it from a Pipeline job.

Managing Services and System Logs

Managing Services and System Logs

Learn how systemd manages services, control and enable a safe practice service, inspect journal and text logs, and recover from a simple failure.

Configuring Tools and Labeled Agents

Configuring Tools and Labeled Agents

Configure a Jenkins node label, a local Git tool, and a Freestyle job from the Jenkins dashboard.

Backing Up and Restoring Jenkins Configuration

Backing Up and Restoring Jenkins Configuration

Back up a Jenkins job configuration, delete it, restore it from an archive, and verify the restored job.

Linux Networking and Firewall Basics

Linux Networking and Firewall Basics

Follow a beginner network diagnostic path from hostname and interfaces through routes, connectivity, DNS, listening ports, HTTP, and safe UFW activation.

Writing Scripted Jenkins Pipelines

Writing Scripted Jenkins Pipelines

Create and run a Jenkins scripted Pipeline job with node, stage, shell steps, and Groovy control flow.

Correct a Service Bind Address

Correct a Service Bind Address

Change one local-only service to listen on all IPv4 interfaces while preserving its response.

Write a Log Error Summary Script

Write a Log Error Summary Script

Write one short Bash script that counts error lines in each prepared log.

Stop a Runaway Process

Stop a Runaway Process

Inspect and stop one prepared process by using its recorded PID.

Initializing a Jenkins Controller

Initializing a Jenkins Controller

Start an isolated Jenkins controller, retrieve the initial admin password, create a real administrator, confirm the initialized dashboard, and clean up the temporary controller.

Running Pipelines on Container Agents

Running Pipelines on Container Agents

Run a Jenkins Pipeline in the container-backed Jenkins environment and capture container execution evidence.

Publishing Test Reports and Build Notifications

Publishing Test Reports and Build Notifications

Create a Jenkins Freestyle job from the dashboard, publish JUnit test results, and configure build email notifications.

System Information and Process Management

System Information and Process Management

Learn to identify a Linux system, interpret load, inspect processes, find PIDs, send signals, control terminal jobs, use exit status, and run detached work.

Creating Multibranch Pipelines

Creating Multibranch Pipelines

Create a local two-branch Git repository, configure a Jenkins Multibranch Pipeline from the dashboard, and compare branch builds.

Restore a Configuration from Backup

Restore a Configuration from Backup

Restore one missing configuration file from a prepared compressed archive.

Recover a Failed Service

Recover a Failed Service

Diagnose one invalid configuration value and return its systemd service to the active state.

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