Azure Basics Part 5

Learn how virtualization creates virtual machines on bare metal using hypervisors to allocate hardware to multiple guest operating systems, including Linux and Windows, with strong isolation.

Explore how containers package code and dependencies as app abstractions, share the host operating system kernel, and run isolated processes, unlike virtual machines with exclusive resources and higher security.

Compare virtual machines and containers: virtual machines run an operating system with virtualization and slower startup; containers share a host operating system with operating system virtualization and faster startup.

Explore Docker as a software as a service tool to create and run containers, miniature virtual machines for running your applications, and understand Docker's components.

Discover Docker architecture, focusing on the Docker daemon as the heart, the Docker client for interaction, and the Docker registry like Docker Hub for storing images.

Clarify how a container image becomes a container at runtime, describing a lightweight, standalone package that includes code, runtime, libraries, and settings, as seen with Docker containers.

pull a Ubuntu operating system image from Docker Hub and run it as a container, then interact with the container via an interactive terminal and run basic Linux commands inside.

Pull and run the official Apache image to deploy an httpd container, map its port to the host, and verify the Apache web server via localhost in a browser.

Learn to tag a Docker image, push it to your private remote repository, authenticate, and pull the image back to your local machine using a versioned tag.

Build a node express application image from a slim base, copy code, install dependencies, and run it as a container that exposes port 80.

Discover how to persist data in Docker using volumes, so data remains after container shutdown, avoid bind mounts, and explore tmpfs options.

Create and inspect docker volumes, then mount them to containers and verify data persists across containers. Use a linux environment with docker installed.

Explain docker bind mounts vs volumes, with volumes as protected Docker-managed storage and bind mounts exposing host paths; show creating a target folder and mounting it.

Create a temporary file system (tmpfs) to store data in memory inside the container; it cannot be shared with other containers on Linux and is not persistent.

Explore Docker networking basics, enabling container-to-container communication on a single host, with a focus on the host and bridge networks.

Explore the Docker bridge network, a software bridge that isolates containers on the default bridge, then create a new bridge, attach containers, and verify IPs and connectivity with ping.

Create and use a container registry to store docker images, build a local image, log in, tag and push, and verify the repository and latest tag.

Create a container instance from a quick start image in a container registry, configure the resource group and name, select minimal resources, and review to create.

Create a single instance container using the Azure registry by deploying the Express App image with the latest tag, then review and create and copy the IP address.

Create a single instance container from public and private images, configure credentials, and deploy engineers' web application using public and private registries in Azure.

Learn to deploy multiple containers in a single container group using YAML, resource manager, or Docker Compose, and map ports for a two-container setup.

Deploy multiple containers in a container instance with docker compose, defining services for engine and node apps from images, with ports 80 and 88 and no port mapping.