DevOps School devops-school

AWS Load Balancer Controller for Kubernetes: A Comprehensive Guide

The AWS Load Balancer Controller is a critical component for running Kubernetes workloads on AWS, enabling seamless integration with AWS Elastic Load Balancers (ELB). This comprehensive tutorial will guide you from fundamental concepts to advanced configurations, ensuring you can effectively manage external traffic to your Kubernetes applications.

🧪 GitLab Code Section – Student Lab Manual (v18.0)

Welcome to the GitLab Lab Manual for the Code section. This hands-on guide will walk you through using essential version control and collaboration tools available under a GitLab project’s Code tab.

🎯 Objective

By the end of this lab, you will be able to:

🛠️ DevOpsSchool Markdown Reference

Welcome to DevOpsSchool – your one-stop platform for mastering DevOps and Cloud skills. Below is a demonstration of Markdown language features while introducing our top certifications and frameworks.

📚 DevOps Certifications Offered

Here is a categorized list of certifications you can pursue at DevOpsSchool:

To deploy an image in OpenShift using the openshift/httpd image, and configure different Kubernetes resources such as StatefulSets, Secrets, ConfigMaps, CronJobs, Jobs, DaemonSets, and HPA, here are the YAML configurations and relevant commands for each.

1. Deployment (for basic deployment)

apiVersion: apps/v1
kind: Deployment
metadata:
  name: httpd-deployment
spec:

	stages:
	- plan
	- approval
	- deploy

	variables:
	SERVICENOW_INSTANCE: "https://your-instance.service-now.com"
	CHANGE_REQUEST_ID_FILE: "change_request_id.txt"

	# Step 1: Create a Change Request in ServiceNow

	# =============================
	# 🎯 Pipeline Execution Policy YAML
	# Enforces: SAST, Secret Detection, Custom Job
	# =============================
	type: pipeline
	name: enforce-secure-pipeline
	enabled: true
	rules:
	- type: pipeline
	branches:

	stages:
	- microservice_build

	build_service_a:
	stage: microservice_build
	script:
	- echo "Building microservice A..."

	build_service_b:
	stage: microservice_build

	localhost:
	nodename: local-1
	hostname: localhost
	osVersion: 26~22.04.1-Ubuntu
	osFamily: Linux
	osArch: amd64
	description: Rundeck server node
	osName: Linux
	username: ubuntu
	tags: ''

	Centos
	https://packagecloud.io/pagerduty/rundeck/packages/rpm_any/rpm_any/rundeck-5.12.0.20250512-1.noarch.rpm/download.rpm?distro_version_id=227

	Docker
	docker pull rundeck/rundeck:5.12.0

	Debian
	https://packagecloud.io/pagerduty/rundeck/packages/any/any/rundeck_5.12.0.20250512-1_all.deb/download.deb?distro_version_id=35

	Fedora