Interested in running .NET Core applications on Docker and Linux? Read to know more.
In a previous post, I detailed how to run RavenDB on Docker. On this post, let's review in more detail how to install Docker on Linux so we can develop our applications using Docker containers. But before we review how to install it, what is Docker anyway?
Docker
Docker provides a way to run applications securely isolated in a container, packaged with all its dependencies and libraries. Docker adds security, reliability, universal packaging and runs anywhere!
Why should I care about Docker?
Well, on that case it's better reading this. Long story short is that docker is way more efficient than full VMs, is very easy to install and has a huge repo of images that you can install on your machine. It's perfect for developers that have to install complex systems like RabbitMQ, Redis or PostGresSql on their machines. Let's take a look.How Docker differs from VMs?
If you're interested on this topic, there's an interesting article that describes how Docker differs from VMS.Installing Docker on Linux
Being Fedora, Ubuntu, Mint, Arch or whatever else Linux distro you're using, the way most users are installing Docker is by jumping into the terminal and running a command. It's that simple because the required packages are available on your distro's repository for free, courtesy of the awesome people that maintain those packages.Because I've been running Fedora for 3 without distro-hopping and am very satisfied with my choice, let's use it for this demo.
# install docker on Fedora/CentOS
sudo dnf install docker
On Ubuntu, one might type:
sudo dnf install docker
# install docker on Ubuntu/Debian/Kali/Mint
sudo apt-get install docker
sudo apt-get install docker
After accepting, I see that everything has finished successfully and I'm ready to start the service:
Starting the Service
The docker bundle contains a client and a server. The client can be accessed by just typing docker:
# Ubuntu/Fedora/and distros running SystemD
$ sudo systemctl start docker
$ sudo systemctl start docker
Testing the Install
In order to test the installation, I can then run as root:
# running the docker hello-world image (all distros)
docker run hello-world
docker run hello-world
Installing on Windows and Mac
Installation on Windows and Mac should be straightforward too. Simply download the executable (Windows Users, Mac Users) and install on your machine.Features Included
- Integrated Docker platform and tools Docker command line, Docker Compose, and Docker Notary command line.
- Automatic updates with channels for monthly Edge and quarterly Stable versions of Docker.
- Fast and reliable performance with native macOS virtualization running a custom minimal Linux distro.
- Seamless volume mounting for code and data, including file change notifications that unlock fast edit-test cycles.
- Native Mac security support
- In container development and debugging with supported IDEs.
Conclusion
We just showed how to install docker on Linux. For most distros it should be pretty similar. Windows and Mac users should follow the links provided and the installation format should be pretty standard.References
- Docker for Developers
- Downloading Docker
- Download Docker for Windows Users
- Download Docker for Mac Users
- Docker Hub
See Also
- My journey to 1 million articles read
- Creating ASP.NET Core websites with Docker
- Send emails from ASP.NET Core websites using SendGrid and Azure
- Running RavenDB on Docker
- How to create a Ubuntu Desktop on Azure
- Windows Subsystem for Linux, the best way to learn Linux on Windows
- 5 tools for Azure Development on Linux
- How to Build and Run ASP.NET Core apps on Linux
- Why use CentOS
- How to create a CentOS VM on Hyper-V
- How to create a CentOS VM on Azure
- Why I use Fedora Linux