install_docker [RADIUSdesk]

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====== RADIUSdesk Docker Image ======
===== Introduction =====
  * You need to know the basics of Docker to be able to execute these instructions.
  * The Docker image will create a split image (two containers)
        * One container will be the database with MariaDB
        * The other container is the web server with Nginx, PHP and FreeRADIUS.

===== Install Docker =====
  * We assume that you are a user-named **system** on a standard Ubuntu installation.
  * Enter the following commands to install the Docker system on your computer.
<code bash>
USER="system"

sudo apt-get update
sudo apt-get install -y \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

sudo apt-get update
sudo apt-get -y install docker-ce docker-ce-cli containerd.io docker-compose-plugin
sudo apt-get -y install docker-compose

# Make docker run as non root
sudo usermod -aG docker $USER
sudo chmod 666 /var/run/docker.sock

# customize it with your own.
sudo mkdir -p /mnt/data
# make sure all future data in this folder can be created as non root
sudo chown  $USER:$USER /mnt/data
</code>

===== Create the Docker containers =====
  * Everything you need to create the RADIUSdesk Docker containers is provided with the RADIUSdesk (rdcore) repository.
  * Check out the **rdcore** git repository.
<code bash>
cd ~
sudo git clone https://github.com/RADIUSdesk/rdcore.git
</code>
  * Mount the rdcore top directory to the **rdcore/docker/rdcore** directory
<code bash>
cd rdcore/docker
sudo mkdir rdcore
sudo mount --bind ../../rdcore ./rdcore
</code>
  * Execute the script local_build.sh.
<code bash>
./local_build.sh
</code>
  * There will be feedback on the screen as the two docker containers getting built.

<alert type="warning">
  * On my one Ubuntu machine I got an error message about
//docker-credential-desktop not installed or not available in PATH//
  * The cure was to edit **~/.docker/config.json** and replace **"credsStore"** by **"credStore"**.
<code javascript>
{
        "auths": {},
        "credStore": "desktop",
        "currentContext": "default"
}
</code>
</alert>

  * After the process is complete, you can confirm that it is running
<code bash>
docker container ls
CONTAINER ID   IMAGE                  COMMAND                  CREATED             STATUS             PORTS                                                                                                        NAMES
98339a6a1b57   docker_radiusdesk      "/bin/sh -c '/usr/bi…"   About an hour ago   Up About an hour   0.0.0.0:80->80/tcp, :::80->80/tcp, 0.0.0.0:1812-1813->1812-1813/udp, :::1812-1813->1812-1813/udp, 9000/tcp   radiusdesk
db3c6fa81d8b   bitnami/mariadb:10.5   "/opt/bitnami/script…"   2 hours ago         Up 2 hours         3306/t
</code>
  * Open a browser and call up the IP address of the host on which the Docker containers are running.