DevOps for Beginners - Jenkins, Kubernetes, and AWS

Master the basics of Git and GitHub and understand why they are essential for DevOps, preparing you for the course's initial chapter.

Differentiate git from GitHub and show how GitHub adds hosting, actions, and DevOps workflows, while using git via CLI or GUI and integrating with Jenkins in DevOps.

Explore the git workflow from workspace to remote repository, mastering git add, git commit, and git push, including the staging area, file deletions, and audit log implications.

Explore git branching and merging with master, feature one, and feature two, including switching, committing changes, fast-forward merges, and using --merged and --no-merged to identify merged status.

Run your first cloud formation stack in the AWS console, explore sample templates, and understand stacks, events, parameters, and outputs.

Compare CloudFormation and Terraform, highlighting CloudFormation's service-based, cloud-native approach and Terraform's cloud-agnostic, open-source flexibility, including state management, drift detection, import existing resources, and enterprise considerations.

Navigate directories with pwd and cd, and list files with ls. Manage environment variables with export and echo, and copy, move, or remove files with cp, mv, and rm.

Learn how to call api endpoints from Linux using curl, handle get and post requests, pass json payloads with -d and -H, and use request.json for payloads.

Learn the vi editor basics, including command mode and insert mode, switching with escape and i, editing, undoing, copying, pasting, and saving or quitting with colon commands.

Explore the Kubernetes primer to build a foundation before pushing content to a container registry and deploying to Kubernetes.

Discover what a container orchestrator does, from deploying containers and ensuring redundancy and health to scaling, load balancing, and service discovery, with Kubernetes as the leading example.

Master eksctl, a CLI that spins up clusters with simple commands, manages node groups, and automates VPCs, subnets, and cloud formation behind the scenes.

Install eksctl by meeting prerequisites and configuring credentials, then install and configure kubectl for demos. Use chocolaty on Windows to install and verify eksctl, preparing for the next lectures.

Spin up your first X cluster using a command or a config file, configure node groups, and learn how cloud formation and cluster outputs help manage and delete resources.

Install Jenkins on AWS EC2 under the free tier using a t2.micro on Amazon Linux 2, configure security, install Java, and set up the initial admin user.

Install Jenkins on your local desktop by running the official docker image from Docker Hub with a persistent docker volume, then access via localhost:88 and set up the admin user.

Learn to configure Jenkins credentials for external systems such as GitHub and Docker Hub, using global scope, with ID-based access in the Jenkinsfile and tokens.

Compare Jenkins freestyle projects and pipeline jobs, showing freestyle limits to single build steps and console output, while pipelines use scripts and Jenkins files for stages, logs, and restartability.

Discover what a Jenkinsfile is and why pipeline as code matters. Codify Jenkins jobs into a git repository to enable repeatable, auditable deployments across environments.

Explore the Jenkinsfile structure, focusing on declarative pipelines, agent configuration, and stages with steps. Learn how to use Docker images, agents, and stage blocks to run build, test, and deploy.

Learn to pass the upstream build number to a downstream job by configuring a string parameter, using env build_number, and displaying it in the downstream pipeline.

Learn to run Jenkins pipeline stages in parallel, with Windows and Linux tests executing simultaneously. See how to configure parallel blocks and verify true parallel execution.

Learn how to trigger an AWS Lambda from a Jenkins job by configuring region and IAM permissions, invoking via the AWS Lambda CLI, and capturing the response in the pipeline.

Insert a manual approval step in your Jenkins-based CI/CD pipeline by pausing the build to accept an input message with proceed or abort options.

Learn to convert a scripted Jenkins pipeline to a declarative pipeline using the script section. Explore building and pushing Docker images with credentials, environment variables, and Groovy code.

Learn how to configure a Jenkins multi branch pipeline that automatically discovers branches and runs a per-branch Jenkins file, enabling parallel builds for main, staging, dev, sandbox, and integration testing.

Submit any cloud formation template from Jenkins using a generic job by passing stack name, template name, and parameters via a properties file, and selecting a region for deployment.

Learn to create and destroy a vpc with terraform in a jenkins pipeline, using init, plan, apply, and auto approve in us west 2.

Provision a Kubernetes cluster with Terraform and Jenkins using the official Eks blueprint, install Helm, and manage plan, apply, and destroy steps in a Jenkins pipeline.