Day-4 | Deploy Jenkins on Azure VM | Azure VM Types explained

This Azure Zero to Hero episode covers virtualization, creating Azure VMs, connecting to them, deploying a DevOps app (Jenkins), and introduces VM scale sets for autoscaling. It details VM creation parameters and choosing appropriate VM sizes based on application needs. This segment provides a concise explanation of the evolution from physical servers to virtualization, highlighting the inefficiency of assigning entire physical servers to individual users and introducing the concept of hypervisors as a solution for resource optimization. This segment delves into the core concept of virtualization, explaining how hypervisors logically divide physical servers into multiple virtual machines, enabling efficient resource allocation among multiple users. This segment illustrates how Azure utilizes virtualization, explaining how it manages physical servers, installs hypervisors, and dynamically or statically allocates virtual machines based on user requests. This segment addresses common user concerns about Azure billing, specifically clarifying the free trial period, credit limits, and the transition to the pay-as-you-go model, emphasizing that charges only occur after explicit consent. This segment offers a detailed explanation of different virtual machine sizes and series in Azure, guiding viewers on how to select the appropriate size based on application requirements (general purpose, memory-optimized, compute-optimized, storage-optimized, etc.), providing practical examples and use cases. This segment details the process of creating an Azure virtual machine, choosing SSH authentication, downloading the private key, and explaining the importance of the private key for accessing the VM. It emphasizes the recommended SSH method over password-based logins for enhanced security. This segment focuses on connecting to the newly created Azure VM using SSH. It covers different terminal options (Git Bash, iTerm), explains the SSH command with the private key, and provides alternative resources for users facing difficulties. The emphasis is on using Git Bash for ease of use with Linux commands. This segment demonstrates the process of updating repositories and installing Java on a Ubuntu virtual machine using the apt package manager. It highlights the importance of updating package managers before installing applications and provides a clear example of installing Java.This segment shows how to deploy a Jenkins application, explaining the concept of ports and how applications run on specific ports. It explains why port 8080 might not be accessible initially due to default port blocking in cloud environments.This segment explains the concept of inbound and outbound ports in Azure virtual machines and demonstrates how to open port 8080 to allow access to the deployed Jenkins application. It covers the security implications of opening ports and provides a practical demonstration of configuring inbound port rules.