machinely

Demo for Dev Containers

What are Dev Containers?

Dev containers are Docker containers that are specifically configured to provide a fully featured development environment. They are used to define an environment in which you develop your application before you are ready to deploy. Dev containers are structured metadata format and are defined in a devcontainer.json file. You can use the default dev container configuration, a predefined dev container configuration, or create a custom dev container configuration.

Microsoft's spot for existing definitions, and instructions for developing your own can be found at https://containers.dev/.

Which Dev Projects are featured here?

In this repository, we are focused on five types of Dev Containers.

1. C++
2. Dotnet with c#
3. Java
4. Azure Functions with node.js
5. Cloud Native development

The C++ Dev Project

In order to run the c++ file, type the following in the command line in the Dev Container.

g++ hello.cpp -o hello

...then, run the project with the command:

./hello

Enter your name and the prompt, and watch as it's returned to you backwards!

The Dotnet Project

This is a fun web page that will show a random scientist.

In order to run this project, type the following in the command line in the Dev Container.

dotnet run

The Java Project

This is a simple Java REST API using Spring Boot, maven and a backend postgreSQL db

In order to run this project, type the following in the command line in the Dev Container. for dev mode and to test against running DB

docker-compose up -d postgres
mvn clean package
mvn spring-boot:run

to test with Docker compose in container context

docker-compose up

The Azure Functions node.js Project

This is a fun Azure Functions project in node.js that when run, it will display an random scientist in the console every minute.

In order to get this project to run, type the following in the command line in the Dev Container.

func start

The Cloud-Native development project

This project configuration has tooling for Java 21, Docker, Kubernetes cluster (minikube), kubectl, Helm and Azure cli.

To test building and deploying of a container app via a Helm chart, pls refer to the instructions in the project's README.md file.