Question

Possible to run a c# .net7 console application executable?

I am most definitely a novice developer so this will likely a silly question but I tried poking around looking for the answer and didn’t find it, or didn’t know what to actually search for but here goes. I’m currently working on building a MUD server from scratch as a .net7 c# console application. Is it possible to run the server .exe executable as-is or do I need to redo my project some other way to work on a droplet?


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Bobby Iliev
Site Moderator
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February 28, 2024

Hey!

Absolutely, running a C# .NET 7 console application, such as your MUD server, on a DigitalOcean Droplet is not only possible but also a common practice for hosting .NET applications.

You don’t need to redo your project; instead, you need to ensure your droplet is set up correctly to support .NET 7 applications.

https://www.digitalocean.com/community/tutorials/how-to-deploy-an-asp-net-core-application-with-mysql-server-using-nginx-on-ubuntu-18-04

Here is a quick overview of what you would need to do:

1. Choosing the Right Droplet

Start by creating a Droplet on DigitalOcean. For a .NET application, an Ubuntu Droplet is a good choice. The size of the Droplet should be based on the expected load for your MUD server. If unsure, start with a smaller size—you can resize your Droplet later if needed.

2. Installing .NET 7

After accessing your Droplet via SSH, your first task is to install .NET 7. For Ubuntu, you can follow these steps:

  • Update Your Package Index
sudo apt-get update
  • Install the Required Dependencies
sudo apt-get install -y apt-transport-https && \
sudo apt-get update && \
sudo apt-get install -y dotnet-sdk-7.0

This installs the .NET SDK, which includes the runtime. You may also want to install the ASP.NET Core runtime for web applications, which can be done by replacing dotnet-sdk-7.0 with aspnetcore-runtime-7.0.

3. Deploying Your Application

To deploy your MUD server, you’ll first need to publish it on your local machine:

dotnet publish -c Release

This creates a publish folder under bin/Release/net7.0/. Transfer this folder to your droplet using SCP or SFTP:

scp -r ./bin/Release/net7.0/publish/ your_user@your_droplet_ip:/path/to/your/app

4. Running Your Application

Navigate to your application’s directory on the Droplet:

cd /path/to/your/app

Run your application:

dotnet YourMudServer.dll

To keep it running in the background, consider using screen:

screen -S mudServer
dotnet YourMudServer.dll

Detach from the screen session by pressing Ctrl+A followed by D. To return, use screen -r mudServer.

5. Configuring the Firewall

Ensure your application’s ports are open. If you’re using Ubuntu’s ufw, you can open a port like so:

sudo ufw allow 5000

Replace 5000 with whatever port your server uses.

6. Security and Maintenance

  • Regularly update your server’s software with sudo apt-get update && sudo apt-get upgrade.
  • Monitor logs to detect any unauthorized access attempts.
  • Set up regular backups for your application data.

Using Docker

Docker can simplify deployment by containerizing your application, making it easy to run your server without worrying about dependencies.

  • Install Docker on Your Droplet
sudo apt-get update
sudo apt-get install docker.io
  • Create a Dockerfile

In your project directory, create a Dockerfile:

FROM mcr.microsoft.com/dotnet/runtime:7.0 AS base
WORKDIR /app

FROM mcr.microsoft.com/dotnet/sdk:7.0 AS build
WORKDIR /src
COPY ["YourMudServer.csproj", "./"]
RUN dotnet restore "./YourMudServer.csproj"
COPY . .
WORKDIR "/src/."
RUN dotnet build "YourMudServer.csproj" -c Release -o /app/build

FROM build AS publish
RUN dotnet publish "YourMudServer.csproj" -c Release -o /app/publish

FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .
ENTRYPOINT ["dotnet", "YourMudServer.dll"]
  • Build and Run Your Docker Container
docker build -t yourmudserver .
docker run -d -p 5000:5000 --name mudserver yourmudserver

Replace 5000:5000 with your application’s port mapping.

By containerizing your application, you isolate it from the host system, making deployment and scaling easier. Docker also simplifies dependency management, ensuring your application runs the same, regardless of where it’s deployed.

Hope that this helps!

Best,

Bobby

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