How to Install Postal on Fedora CoreOS Latest

Postal is a mail delivery platform that enables you to manage and send emails with ease. This tutorial will guide you through the installation process of Postal on Fedora CoreOS Latest.

Prerequisites

Before we get started, you need to ensure that you have the following requirements:

• A running instance of Fedora CoreOS Latest
• Root access
• A domain name and a valid SSL certificate

Install Dependencies

We will be installing a few dependencies that Postal requires in order to run:

sudo dnf install curl git iptables-services openssl-devel sqlite-devel ruby ruby-devel nodejs mariadb mariadb-server redis

Once done, start and enable the MySQL and Redis services:

sudo systemctl start mariadb
sudo systemctl enable mariadb

sudo systemctl start redis
sudo systemctl enable redis

Install Postal

Now let's install Postal. First, add the Postal yum repository and import the GPG key:

sudo curl -sL https://packagecloud.io/atech/postal/gpgkey | sudo apt-key add -

sudo curl -s https://packagecloud.io/install/repositories/atech/postal/script.rpm.sh | sudo bash

Once added, install Postal:

sudo yum install postal

Configuring Postal

Now that Postal is installed, let's configure it.

1. Set up the MySQL database. To do this, run the following command:

sudo postal make-database postal

2. Configure the postal service by running the following command:

sudo postal initialize-config

3. Edit the default settings file using the following command:

sudo nano /opt/postal/config/postal.yml

4. In the postal.yml file, edit the following lines with your domain name and SSL certificate location:

postal:
  fqdn: "yourdomain.com"
  ...
  ssl:
    enabled: true
    ssl_certificate: "/etc/pki/tls/certs/yourdomain.com.crt"
    ssl_certificate_key: "/etc/pki/tls/certs/yourdomain.com.key"

Starting the Postal Service

Now that Postal is configured, let's start the service:

sudo postal start

To ensure that Postal runs at startup, enable the service:

sudo systemctl enable postal

Finally, check the status of the Postal service:

sudo postal status

That's it – you've successfully installed Postal on Fedora CoreOS Latest!

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