Installing Openmeetings on Fedora CoreOS

This tutorial will guide you through the process of installing Openmeetings on the latest version of Fedora CoreOS. Openmeetings is a free and open source web conferencing platform that can be used for online meetings, webinars, online training, and more. Follow the steps below to install and configure Openmeetings on your Fedora CoreOS instance.

Prerequisites

A Fedora CoreOS instance with root access
At least 4 GB of RAM and 2 CPU cores
A domain name that is pointed to your server's IP address

Step 1: Install dependencies

Before installing Openmeetings, we need to install some dependencies that will be required during the installation process. Run the following command to install the required packages:

sudo dnf install -y java-1.8.0-openjdk ImageMagick ghostscript libicu-devel libjpeg-turbo-devel libpng-devel libtiff-devel libwebp-devel ffmpeg ffmpeg-devel libv4l-devel libX11-devel libXext-devel postgresql-server postgresql-contrib

Step 2: Create a PostgreSQL database and user

Openmeetings requires a PostgreSQL database to store its data. Follow the steps below to create a PostgreSQL database and user for Openmeetings:

Create a new PostgreSQL database:

sudo postgresql-setup --initdb --unit postgresql
sudo systemctl enable --now postgresql
sudo -u postgres createdb openmeetings

Create a new PostgreSQL user and grant it access to the database:

sudo -u postgres createuser --encrypted --pwprompt openmeetings
sudo -u postgres psql
GRANT ALL PRIVILEGES ON DATABASE openmeetings TO openmeetings;

Step 3: Download and configure Openmeetings

Download and extract the latest version of Openmeetings:

wget https://downloads.apache.org/openmeetings/5.2.1/bin/apache-openmeetings-5.2.1.tar.gz
tar -xzvf apache-openmeetings-5.2.1.tar.gz

Move the extracted folder to /opt directory:

sudo mv apache-openmeetings-5.2.1 /opt/openmeetings

Set the OPENMEETINGS_HOME environment variable to the Openmeetings installation directory:

echo "export OPENMEETINGS_HOME=/opt/openmeetings" | sudo tee -a /etc/profile.d/openmeetings.sh
source /etc/profile.d/openmeetings.sh

Change the ownership of the Openmeetings installation directory:
```
sudo chown -R openmeetings:openmeetings /opt/openmeetings
```

Create a new file openmeetings.properties in the Openmeetings installation directory with the following content:

om.host=localhost
om.db.name=openmeetings
om.db.user=openmeetings
om.db.pass=password
om.rtmp.host=localhost
om.installation.type=auto
om.service.url=https://your-domain.com:5443/openmeetings
om.room.check=60000
om.room.expand.interval=60000
om.device.watch.interval=60000
om.calendar.resend.interval=60000

Replace your-domain.com with your domain name.

Run the following commands to configure Openmeetings:

cd /opt/openmeetings/bin
sudo -u openmeetings /opt/openmeetings/bin/red5.sh stop
sudo -u openmeetings /opt/openmeetings/bin/build.xml clean
sudo -u openmeetings /opt/openmeetings/bin/build.xml deploy
sudo -u openmeetings /opt/openmeetings/bin/red5.sh start

Step 4: Configure HTTPS

Openmeetings requires HTTPS to be enabled to ensure secure communication between the server and clients. Follow the steps below to enable HTTPS on your server:

Install Certbot:

sudo dnf install certbot python3-certbot-nginx

Obtain a TLS certificate for your domain:

sudo certbot certonly --nginx -d your-domain.com

Configure Openmeetings to use HTTPS by editing the openmeetings.properties file and adding the following line:
```
om.webrtc.protocol=https
```
Add the following line to the /etc/nginx/nginx.conf file to enable SSL:
```
ssl_protocols TLSv1.2;
```

Restart Nginx and Openmeetings:

sudo systemctl restart nginx
sudo -u openmeetings /opt/openmeetings/bin/red5.sh restart

Congratulations! You have successfully installed and configured Openmeetings on Fedora CoreOS. You can now access Openmeetings by navigating to https://your-domain.com:5443/openmeetings.