How to Install Dokku on Manjaro

Dokku is a simple and lightweight platform-as-a-service (PaaS) software that enables developers to deploy and manage their applications on a server with ease. In this tutorial, we will guide you through the process of installing Dokku on Manjaro.

Prerequisites

Before installing Dokku, make sure that your Manjaro system meets the following requirements:

A fresh and up-to-date installation of Manjaro Linux
A user account with sudo privileges
Basic knowledge of the Linux command-line interface (CLI)

Step 1: Update the System

Before installing any new software, it's always important to ensure that your system is up-to-date with the latest packages and libraries. You can update your Manjaro system by running the following command in a terminal:

sudo pacman -Syyu

Step 2: Install Docker

To run Dokku on your Manjaro system, you'll need to have Docker installed. Docker is a containerization platform that allows you to run and manage applications in a virtualized environment.

To install Docker on your Manjaro system, follow these steps:

Open a terminal and run the following command to install the necessary dependencies:
```
sudo pacman -S docker
```
Once the installation is complete, enable the Docker service to start on boot:
```
sudo systemctl enable docker.service
```
Start the Docker service:
```
sudo systemctl start docker.service
```
Verify that Docker is running correctly by running the following command:
```
sudo docker info
```
If everything is working correctly, you should see output similar to the following:
```
Containers: 0
 Running: 0
 Paused: 0
 Stopped: 0
```

Step 3: Install Dokku

Now that Docker is installed and running on your Manjaro system, you can proceed with the installation of Dokku.

To download and install Dokku, run the following command in a terminal:

wget https://raw.githubusercontent.com/dokku/dokku/v0.24.13/bootstrap.sh

Make the bootstrap script executable:
```
chmod +x bootstrap.sh
```
Run the script to install Dokku:
```
sudo ./bootstrap.sh
```
Once the installation is complete, Dokku should be running on your system. You can verify this by running the following command:
```
dokku version
```
If everything is working correctly, you should see output similar to the following:
```
dokku version 0.24.13
```

Step 4: Configure Dokku

Before you can start deploying applications with Dokku, you'll need to configure some basic settings.

Set the hostname of your Dokku installation:
```
dokku config:set --global DOKKU_HOSTNAME=dokku.example.com
```
Replace dokku.example.com with the hostname of your server.
Set the SSH public key for the dokku user:
```
dokku ssh-keys:add dokku "$(cat ~/.ssh/id_rsa.pub)"
```
Replace id_rsa.pub with the name of your SSH public key file.
Set the default Docker image tag to use for new applications:
```
dokku config:set --global DOKKU_APP_IMAGE="docker.io/dokku/myapp:latest"
```
Replace myapp with the name of your application.

Conclusion

Congratulations! You have successfully installed and configured Dokku on your Manjaro system. Now you can start deploying and managing your applications in a simple and lightweight PaaS environment.