How to Install Lemmy on Fedora CoreOS Latest

This tutorial will guide you through the process of installing Lemmy on the latest version of Fedora CoreOS. Lemmy is an open-source, federated, and self-hosted alternative to Reddit.

Prerequisites

Before you begin, make sure you have the following:

A server running the latest version of Fedora CoreOS.
A non-root user with sudo privileges.

Step 1: Install Docker

Lemmy is built as a Docker container, so you need to install Docker on your Fedora CoreOS by doing the following:

First, update your packages by running the following command:
```
sudo dnf update
```
Install Docker by running the following command:
```
sudo dnf install docker
```
Start the Docker service by running the following command:
```
sudo systemctl start docker
```

You can verify that Docker is running by running the following command:

sudo systemctl status docker

Step 2: Install and Configure Nginx

Nginx is a web server that will act as a reverse proxy for Lemmy. It will listen for requests on port 80 and forward them to the Lemmy container. Here's how to install and configure Nginx:

Install Nginx by running the following command:
```
sudo dnf install nginx
```
Start the Nginx service by running the following command:
```
sudo systemctl start nginx
```

Configure Nginx by creating a new file called lemmy.conf in the /etc/nginx/conf.d/ directory:

sudo nano /etc/nginx/conf.d/lemmy.conf

Add the following configuration to the file:

server {
    listen 80;
    server_name your.domain.com;

    location / {
        proxy_pass http://localhost:8536;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }
}

Replace your.domain.com with your own domain name. This configuration tells Nginx to listen for requests on port 80, forward them to the Lemmy container running on port 8536, and set the necessary headers.

Test the Nginx configuration by running the following command:
```
sudo nginx -t
```
If the configuration is valid, you should see the following output:
```
nginx: configuration file /etc/nginx/nginx.conf test is successful
```
If there are any errors in your configuration, fix them before continuing.
Restart the Nginx service by running the following command:
```
sudo systemctl restart nginx
```

Step 3: Install and Run the Lemmy Container

Now that Docker and Nginx are installed and configured, it's time to install and run the Lemmy container using Docker:

Pull the Lemmy Docker container by running the following command:
```
sudo docker pull matriphe/lemmy:latest
```
Run the Lemmy container by running the following command:
```
sudo docker run --name lemmy -p 127.0.0.1:8536:8536 -v $(pwd)/data:/data -v $(pwd)/config:/config -d matriphe/lemmy:latest
```
This command does the following:
- Runs the Lemmy container with the name lemmy.
- Maps port 8536 in the container to port 8536 on the host (localhost).
- Mounts the data and config directories in the container to the current directory on the host.
- Runs the container in detached mode (in the background).

Verify that the container is running by running the following command:

sudo docker ps

You should see output similar to the following:

CONTAINER ID   IMAGE                    COMMAND                  CREATED         STATUS         PORTS                              NAMES
7b1be65f9d7e   matriphe/lemmy:latest   "/usr/local/bin/dock…"   2 minutes ago   Up 2 minutes   127.0.0.1:8536->8536/tcp, 8443/tcp   lemmy

This indicates that the container is running and listening on port 8536.

Step 4: Access Lemmy

Now that Lemmy is running, you can access it by visiting http://your.domain.com in your web browser. You should see the Lemmy homepage.

Congratulations, you have successfully installed Lemmy on Fedora CoreOS latest! You can now start using Lemmy to participate in online communities in a decentralized and federated way.