Ubuntu Servers and ASP.net Core Project Deployment using Nginx

Hidayat Arghandabi
Dec 25, 2018 · 3 min read

.NET is a free, cross-platform, open source developer platform for building many different types of applications.

Linux servers are cheaper to deploy dotnet core projects.

In this article I will be explaining, how to deploy a dotnet core project in a Ubuntu 16.04 Linux GUI or NON-GUI servers.

Step 1: Log in to your Linux server, Install the Prerequisites

Register Microsoft key and feed

wget -q https://packages.microsoft.com/config/ubuntu/16.04/packages-microsoft-prod.debsudo dpkg -i packages-microsoft-prod.deb

Install the .NET SDK

sudo apt-get install apt-transport-httpssudo apt-get updatesudo apt-get install dotnet-sdk-2.2

To confirm your installation and to check the version of dotnet cli installed on the machine type the following command. You should get an output

dotnet —-version

Output: The version installed in my server is 2.2.101

Step 2: Install Nginx

NGINX is open source software for web serving, reverse proxying, caching, load balancing, media streaming, and more. It started out as a web server designed for maximum performance and stability.

Install Nginx

sudo apt-get install nginx

Start Nginx Server

sudo service nginx start

Server Status: Check the server status if running

sudo service nginx status

You can see that the server is active

Step 3: Configure Nginx

To configure Nginx as a reverse proxy to forward requests to our ASP.NET Core app. Modify (nano) /etc/nginx/sites-available/default.

nano /etc/nginx/sites-available/default

Or Open it in a text editor, and replace the contents with the following: This Nginx configuration file forwards incoming public traffic from port 80 to port 5000.

server {listen 80;location / {proxy_pass http://localhost:5000;proxy_http_version 1.1;proxy_set_header Upgrade $http_upgrade;proxy_set_header Connection keep-alive;proxy_set_header Host $http_host;proxy_cache_bypass $http_upgrade;}}

NOTICE: The localhost port can change upon your project

After the modification we need to verify the syntax of the configuration file

sudo nginx -t

If the configuration file test is successful, force Nginx to pick up the changes by running

sudo nginx -s reload

Or start it with:

sudo service nginx start

Now your go to your nginx server adress and you see that you application has started working.

Step 4: Register Project Nginx in a service file

Go to the the following directory tree and deploy the appliaction.

/var/www/ForExample

Deploy the application in your dirctory (mkdir build)

/var/www/build

After the application is clone to your ubuntu. In the application directory , check if it runs

/var/www/ForExample/ForExample# dotnet run

Deploy in a build directory

/var/www/ForExample/ForExample# dotnet publish — output “ /var/www/build” — configuration release

Go to the build directory and run the application

/var/www/build# dotnet ForExample.dll

Create the service file

sudo nano /etc/systemd/system/kestrel-ForExample-test.service

and paste

[Unit]Description=Example .NET Web API App running on Ubuntu[Service]WorkingDirectory=/var/www/ForExample/ForExampleExecStart=/usr/bin/dotnet /var/www/build/ForExample.dllRestart=always# Restart service after 10 seconds if the dotnet service crashes:RestartSec=10KillSignal=SIGINTSyslogIdentifier=dotnet-exampleUser=www-dataEnvironment=ASPNETCORE_ENVIRONMENT=ProductionEnvironment=DOTNET_PRINT_TELEMETRY_MESSAGE=false[Install]WantedBy=multi-user.t

Register the service

sudo systemctl enable kestrel-ForExample-test.service

Start the service and verify that it’s running.

sudo systemctl start kestrel-mebgispanel-test.servicesudo systemctl status kestrel-mebgispanel-test.service

Check the server logs

sudo journalctl -fu kestrel-helloapp.service

Your application is successfully running in Nginx server.

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Hidayat Arghandabi

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Full-Stack Software Developer | Open-Source Contributor https://www.linkedin.com/in/hidayatarg/

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