DevOps
Set up .NET 6.0 Project on Ubuntu with Docker
Introduction
This documentation explains how to build a project of .NET 6.0 on an Ubuntu machine using Docker and Nginx as the reverse proxy.
Step 1: Set Up the Project Directory
First and foremost, create a folder for your project and move into it using:
mkdir dotnet-docker-setup && cd dotnet-docker-setup
Step 2: Create Your .NET Project
If you do not have a .NET project, you can create a new one with the .NET CLI SDK.
dotnet new web -n MyWebAppThen move into the project folder:
cd MyWebApp
Step 3: Create a Dockerfile
Navigate to the root of the project (where the .csproj file is located), and create a file named Dockerfile:
nano Dockerfile
Add the following content to your Dockerfile:
# Stage 1: Build the applicationFROM mcr.microsoft.com/dotnet/sdk:6.0 AS build
WORKDIR /app
# Copy everything to the containerCOPY . .
# Restore dependencies and build the applicationRUN dotnet restoreRUN dotnet publish -c Release -o /app/out
# Stage 2: Run the applicationFROMmcr.microsoft.com/dotnet/aspnet:6.0 AS runtime
WORKDIR /app
# Copy the published output from the build stageCOPY --from=build /app/out .
# Configure the port for your appEXPOSE 5000
# Application StartupENTRYPOINT [ "dotnet", "MyWebApp.dll" ]
Step 4: Create a Docker Compose File
Move to the root directory (dotnet-docker-setup) and create a docker-compose.yml file:
nano docker-compose.yml
Add the following content:
version: '3.8'services: webapp: build: context: ./MyWebApp dockerfile: Dockerfile ports: - "5000:5000" networks: - app-network nginx: image: nginx:latest ports: - "80:80" volumes: - ./nginx.conf:/etc/nginx/conf.d/default.conf depends_on: - webapp networks: - app-networknetworks: app-network: driver: bridge
Step 5: Create an Nginx Configuration File
Create a custom Nginx configuration file in the root directory:
nano nginx.conf
Add the following content:
server { listen 80; server_name your-domain.com www.your-domain.com; location / { proxy_pass http://webapp:5000; proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection keep-alive; proxy_set_header Host $host; proxy_cache_bypass $http_upgrade; }}
Step 6: Build and Run the Containers
Build and start your Docker containers using Docker Compose:
docker-compose up --build -d
Step 7: Verify the Application
Once the containers are running, open your browser and navigate to:
http://<your-server-ip>
You should see your .NET application running.
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