Presentation at DotNet Conf on using Docker with .NET core. Basic commands of docker, docker compose, and using a database Postgres with docker and asp .net core.

1. Docker .NET Core Developers
TASWAR BHATTI (MVP)
@TASWARBHATTI
HTTP://TASWAR.ZEYTINSOFT.COM

2. Agenda
- What is docker?
◦ Images and Containers
◦ Docker vs VM
◦ Tools
- Dockerfile
- Docker linking with other containers
- Docker compose
- Summary

3. What is Docker?
- Lightweight, open, secure platform
- Simplify building, shipping, running apps
- Shipping container system for code
- Runs natively on Linux or Windows Server
- Runs on Windows or Mac Development machines (with a virtual machine or Hyper-V)
- Relies on "images" and "containers"

4. Images and Containers

5. Docker Image
- Ubuntu, DotNet Core, Node etc
- An image is an inert, immutable, file essentially a snapshot of a container
- A read-only template composed of layered filesystems used to share common files
- Create Docker container instances
- Created by docker build command
- Stored in Docker registry (Docker Hub)

6. Docker Container
- Container is an instance of your image but running
- Using the docker run command
- An isolated and secured shipping container
- created from an image that can be run, started, stopped, moved and deleted

7. Docker vs VM

8. Tools for Docker
- Install docker from https://docs.docker.com/

9. Kitematic
A GUI component for Docker
- Allows one to control the container (start, stop, remove, etc)

10. Demo of Kitematic

11. Dockerfile
- A dockerfile is a simple text file that contains the commands a user could call to assemble an
image.

12. Dockerfile (Sample)
FROM microsoft/dotnet:latest
COPY . /app
WORKDIR /app
RUN ["dotnet", "restore"]
RUN ["dotnet", "build"]
EXPOSE 5000/tcp
ENV ASPNETCORE_URLS http://*:5000
ENTRYPOINT ["dotnet", "run"]

13. Linking Docker Container Demo

14. Docker Compose

15. Docker-compose.yml

16. Demo

17. Questions?
Contact: taswar@gmail.com
Twitter: @taswarbhatti
Web: http://taswar.zeytinsoft.com