VS Code tools for docker
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The document discusses Docker and Kubernetes tools for Visual Studio code. It provides an overview of Docker, how to build Docker images using Dockerfiles, and how to use the Docker extension in VS Code. It also covers developing applications inside Docker containers using the Remote - Containers extension. Finally, it gives a basic introduction to Kubernetes, including nodes, pods, deployments, and services. The presenter demonstrates creating a Dockerfile and deploying to Kubernetes.
![Docker multi-stage builds
> FROM mcr.microsoft.com/dotnet/core/sdk:2.2 AS build-env
> WORKDIR /app
> COPY *.csproj ./
> RUN dotnet restore
> COPY . ./
> RUN dotnet publish -c Release -o out
> FROM mcr.microsoft.com/dotnet/core/aspnet:2.2
> WORKDIR /app
> COPY --from=build-env /app/out .
> ENTRYPOINT ["dotnet", "aspnetapp.dll"]](https://image.slidesharecdn.com/visualstudiocodetoolsfordocker-191124084713/85/VS-Code-tools-for-docker-9-320.jpg)
VS Code tools for docker
- 1. Visual Studio (code) tools for docker Alessandro Melchiori - @amelchiori CodicePlastico
- 2. Agenda
- 4. Docker is a very popular container platform that lets you easily package, deploy, and consume applications and services. With Docker, you can build images by specifying the step by step commands needed to build the image in a Dockerfile. A Dockerfile is just a text file that contains the build instructions. Docker
- 5. What’s a container? Instead of configuring a machine to host your application, you have your application wrapped into a container and deployed on a machine that hosts the container engine which is in charge of actually running the containers.
- 6. The Docker extension Docker support for VS Code is provided by an extension. To install the Docker extension, open the Extensions view by pressing Ctrl+Shift+X and search for docker to filter the results. Select the Microsoft Docker extension.
- 8. Multi-stage builds are a new feature requiring Docker 17.05 or higher on the daemon and client. Multistage builds are useful to anyone who has struggled to optimize Dockerfiles while keeping them easy to read and maintain. Docker multi-stage builds
- 9. Docker multi-stage builds > FROM mcr.microsoft.com/dotnet/core/sdk:2.2 AS build-env > WORKDIR /app > COPY *.csproj ./ > RUN dotnet restore > COPY . ./ > RUN dotnet publish -c Release -o out > FROM mcr.microsoft.com/dotnet/core/aspnet:2.2 > WORKDIR /app > COPY --from=build-env /app/out . > ENTRYPOINT ["dotnet", "aspnetapp.dll"]
- 10. DEMO Create a Dockerfile using vscode extension
- 12. The Remote - Containers extension lets you use a Docker container as a full-featured development environment. Whether you deploy to containers or not, containers make a great development environment because you can: ● Develop with a consistent, easily reproducible toolchain on the same operating system you deploy to. ● Quickly swap between different, isolated development environments and safely make updates without worrying about impacting your local machine. ● Make it easy for new team members / contributors to get up and running in a consistent development environment. ● Try out new technologies or clone a copy of a code base without impacting your local setup. Remote containers extension
- 13. Developing inside a container Workspace files are mounted from the local file system or copied or cloned into the container. Extensions are installed and run inside the container, where they have full access to the tools, platform, and file system. This means that you can seamlessly switch your entire development environment just by connecting to a different container.
- 15. Kubernetes is a cluster technology. It means that you will see a cluster of computers as one entity. You will not deploy an application on a specific computer, but somewhere in the cluster What’s Kubernetes (k8s)
- 16. K8s 101 - Nodes Each computer in the cluster is called a node. Eventually, the nodes will host your applications. The nodes can be spread throughout the world in different data centers
- 17. K8s 101 - Pods Pods are the smallest unit you will eventually deploy to the cluster. A single Pod can hold multiple containers.
- 18. K82 101 - Deployments Deployments are requirements you give to Kubernetes regarding your applications (Pods)
- 19. K8s 101 - Services Services are an abstract way to expose an application running on a set of Pods as a network service.
- 21. ALESSANDRO MELCHIORI Founder & Software developer @CodicePlastico alessandro@codiceplastico.com @amelchiori
- 22. Grazie!