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.
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Your First Hive Query
Discover where Apache Hive fits in a data workflow, explore a prepared retail table, and write your first SQL file to select and check paid order records.
Big DataShell
Your First Hadoop Lab
Discover what big data means and where Hadoop fits, then upload a retail text file to HDFS, read it back, and verify its contents in a prepared environment.
Big DataLinuxShell
Understand Your Hadoop Environment
Discover how Hadoop components fit together, inspect the configured filesystem, compare local and HDFS paths, and read live HDFS service and storage-node information.
LinuxBig Data
Restore a Configuration from Backup
Restore one missing configuration file from a prepared compressed archive.
Linux
Creating Multibranch Pipelines
Create a local two-branch Git repository, configure a Jenkins Multibranch Pipeline from the dashboard, and compare branch builds.
Jenkins
Recover a Failed Service
Diagnose one invalid configuration value and return its systemd service to the active state.
Linux
Publishing Test Reports and Build Notifications
Create a Jenkins Freestyle job from the dashboard, publish JUnit test results, and configure build email notifications.
Jenkins
Running Pipelines on Container Agents
Run a Jenkins Pipeline in the container-backed Jenkins environment and capture container execution evidence.
Jenkins
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.
Jenkins
Stop a Runaway Process
Inspect and stop one prepared process by using its recorded PID.
Linux
Write a Log Error Summary Script
Write one short Bash script that counts error lines in each prepared log.
Shell
Correct a Service Bind Address
Change one local-only service to listen on all IPv4 interfaces while preserving its response.
Linux
Writing Scripted Jenkins Pipelines
Create and run a Jenkins scripted Pipeline job with node, stage, shell steps, and Groovy control flow.
Jenkins
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.
Linux
Backing Up and Restoring Jenkins Configuration
Back up a Jenkins job configuration, delete it, restore it from an archive, and verify the restored job.
Jenkins
Configuring Tools and Labeled Agents
Configure a Jenkins node label, a local Git tool, and a Freestyle job from the Jenkins dashboard.
Jenkins
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.
Linux
Using Jenkins Shared Libraries
Create a local Jenkins shared library, register it from the dashboard, and call it from a Pipeline job.
Jenkins
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