Nginx Docker Swarm Config With Defferent Server

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Nginx Docker Swarm Config With Different Server

Introduction to Nginx and Docker

Nginx is a popular open-source web server that is used for serving static content, as well as for proxying traffic, load balancing, and other tasks. Docker is an open-source tool that allows developers to quickly build, deploy and manage applications in containers. This can be especially useful when running applications on different environments with different configurations. In this article, we will show you how to build a Nginx Docker Swarm cluster with different servers and configurations.

Prerequisites

Before you begin, make sure you have the following items:

At least two Ubuntu or CentOS Linux servers

Root user access to the servers

A user with sudo privileges on each server

Docker installed on the servers

Docker Swarm configured on the servers

Install and Configure Nginx on All Servers

The first step is to install and configure Nginx on all servers in the Docker Swarm cluster. We will start by updating the packages on all servers:

sudo apt-get update

sudo apt-get upgrade

Once the packages have been updated, we can install Nginx:

sudo apt-get install nginx

We can now configure Nginx. We will use the default configuration file, but we can make changes to this file as needed. Once the configuration has been updated, we can start the Nginx service:

sudo service nginx start

Now that Nginx is installed and running on all servers, we can move on to the next step.

Create Docker Swarm Services for Nginx

Now that Nginx is installed and running on all servers in the Docker Swarm cluster, we can create Docker Swarm services for Nginx. We will use the Docker Swarm CLI to create the services. We will create a service for each server in the cluster, with each service running a single instance of Nginx:

docker service create --replicas 1 --name nginx-server1 --publish published=80,target=80 nginx

docker service create --replicas 1 --name nginx-server2 --publish published=80,target=80 nginx

...

Once the services have been created, we can check the status of the services using the following command:

docker service ls

This will display the list of services that have been created and will show the status of each service.

Configure Nginx for Different Servers

We can now configure Nginx for each server in the Docker Swarm cluster. Each server can have a different configuration, such as a different server name or document root. We will use the docker exec command to access the Nginx configuration file on each server and make the necessary changes:

docker exec -ti nginx-server1 vi /etc/nginx/nginx.conf

Once we have made the changes, we can reload the Nginx configuration file by running the following command:

docker exec -ti nginx-server1 nginx -s reload

We can repeat these steps for each server in the Docker Swarm cluster.

Test the Configuration

Once we have configured Nginx for each server in the Docker Swarm cluster, we can test the configuration by using a browser to access the web page of each server. We can also use the curl command to test the configuration from the command line:

curl http://nginx-server1

curl http://nginx-server2

...

This will display the contents of the web page of each server.

Conclusion

In this article, we showed you how to build a Nginx Docker Swarm cluster with different servers and configurations. We covered how to install and configure Nginx on each server, how to create Docker Swarm services for Nginx, and how to configure Nginx for different servers. Finally, we tested the configuration to make sure it was working properly.

Frequently Asked Questions

Can I use Nginx with Docker Swarm? Yes, you can use Nginx with Docker Swarm by creating Docker Swarm services for Nginx.

How do I configure Nginx for different servers? You can configure Nginx for different servers by using the docker exec command to access the Nginx configuration file on each server and make the necessary changes.

How do I test the configuration? You can test the configuration by using a browser to access the web page of each server or by using the curl command to test the configuration from the command line.

Thank you for reading this article. Please read other articles for more knowledge about web development.

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