Installing Mattermost on Fedora CoreOS

Mattermost is an open-source, self-hosted messaging platform that allows teams to communicate and collaborate in a private and secure environment. This tutorial will guide you through the installation process of Mattermost on the latest version of Fedora CoreOS.

Prerequisites

Before proceeding with the installation, make sure you have the following requirements:

• A server or a virtual machine that runs on Fedora CoreOS
• A non-root user with sudo privileges

Step 1: Install Docker

Mattermost requires Docker to be installed on the server. To install Docker, run the following command:

$ sudo dnf install docker

Start the Docker service and enable it to start at boot time:

$ sudo systemctl start docker
$ sudo systemctl enable docker

Verify that Docker is running by running the following command:

$ sudo systemctl status docker

Step 2: Create a new directory for Mattermost

Create a new directory where Mattermost will be installed. For example:

$ sudo mkdir /opt/mattermost
$ sudo chown -R $USER:$USER /opt/mattermost

Step 3: Download the latest version of Mattermost

Download the latest version of Mattermost by running the following command:

$ sudo docker pull mattermost/mattermost-team-edition

Step 4: Run the Mattermost container

To run the Mattermost container, you need to specify the configuration settings in a configuration file. Here is an example of a configuration file:

$ mkdir -p /opt/mattermost/data/{logs,config,plugins,client-plugins,files}

$ cat << EOF > /opt/mattermost/config/config.json
{
  "ServiceSettings": {
    "ListenAddress": ":8065",
    "PostgresHost": "postgres",
    "PostgresPort": 5432,
    "PostgresDatabase": "mattermost",
    "PostgresUsername": "mmuser",
    "PostgresPassword": "mmuser_password",
    "SiteURL": "http://localhost:8065",
    "LicenseFileLocation": "/mattermost/config/license.txt",
    "EnableUserAccessTokens": true,
    "SessionLengthWebInDays": 30,
    "SessionLengthMobileInDays": 30,
    "SessionLengthSSOInDays": 30
  },
  "FileSettings": {
    "Directory": "/opt/mattermost/data/files"
  },
  "LogSettings": {
    "EnableConsole": true,
    "ConsoleLevel": "INFO",
    "EnableFile": true,
    "FileLevel": "INFO",
    "FileFormat": "console",
    "FileLocation": "/opt/mattermost/data/logs/mattermost.log",
    "CorsSseLogEnabled": false
  },
  "PluginSettings": {
    "PluginDirectory": "/opt/mattermost/plugins",
    "Enable": true,
    "RequirePluginSignature": true,
    "EnableMarketplace": false,
    "EnableRemoteMarketplace": false
  },
  "PluginStates": {
    "com.mattermost.nps": {
      "Enable": true
    }
  }
}
EOF

Note: Replace the values of the database settings with your own.

Once the configuration file is created, you can run the Mattermost container with the following command:

$ sudo docker run --name mattermost -d --publish 8065:8065 --add-host=postgres:<POSTGRES_IP_ADDRESS> \
--restart always --volume /opt/mattermost/config:/mattermost/config \
--volume /opt/mattermost/plugins:/mattermost/plugins --volume /opt/mattermost/data:/mattermost/data \
mattermost/mattermost-team-edition

Note: Replace <POSTGRES_IP_ADDRESS> with the IP address of your PostgreSQL server.

Step 5: Access Mattermost

Once the container is running, you can access Mattermost by opening a web browser and navigating to http://SERVER_IP_ADDRESS:8065.

You will be asked to create an administrator account for Mattermost. Follow the instructions provided by the setup wizard to complete the installation.

Congratulations! You have successfully installed Mattermost on Fedora CoreOS. You can now start using Mattermost to collaborate and communicate with your team.