Docker for .NET Developer - Getting Started

Run a docker container for 10 seconds to simulate a short task, observe that containers exit when idle, and manage images with docker ps, rm, and rmi.

Discover how Docker run auto-downloads an image from Docker Hub when missing locally; running hello world pulls the image, starts and exits a container, then you remove container and image.

Build a new docker image from the nginx base by copying html files and layering changes. Use docker build with tags and lowercase repository names, then verify the image.

Learn to run a Docker container from an nginx image, map port 9000 to 80, and manage image tags from 1.00.0 to 1.0.1 while troubleshooting index.html casing.

Learn to use ARG and ENV in docker for dotnet apps, enabling build-time and runtime configuration, overriding defaults with --build-arg and -e at run time.

Learn how the expose instruction differs from port mapping, showing that expose is for documentation while real connectivity relies on port mapping, exposing 80 and 443 for http and https.

Use the docker run command to execute code on an image and create a new layer; it supports building a dotnet project with a work dir and dotnet build.

Master docker run to spin up containers with named instances and proper port mapping. Run in detached mode, pass environment variables, and connect via exec for interactive terminals.

Create a custom dockerfile for a dotnet eight web app, restore nuget packages, publish release, and run the final image with dotnet my web app dll as the entry point.

Log in to Docker Hub from PowerShell by running docker login after starting Docker Desktop; enter your Docker Hub credentials and confirm login succeeds in the console.

Demonstrates pulling a published docker image, cleaning up images, choosing a tag, and running a container with port mapping to verify a .NET app locally.