# Run Draw.io - Open Source Diagramming Web Application - in Docker

## What is Draw.io?

> draw.io is a configurable diagramming/whiteboarding visualization application. -https://github.com/jgraph/drawio

## Installing Docker

1. Log into the Linux based device
2. Run the following commands in the terminal
   # install prerequisites
   sudo apt install apt-transport-https ca-certificates curl software-properties-common gnupg-agent -y
   # add docker gpg key
   curl -fsSL https://download.docker.com/linux/$(awk -F'=' '/^ID=/{ print $NF }' /etc/os-release)/gpg | sudo apt-key add -
   # add docker software repository
   sudo add-apt-repository "deb [arch=$(dpkg --print-architecture)] https://download.docker.com/linux/$(awk -F'=' '/^ID=/{ print $NF }' /etc/os-release) $(lsb_release -cs) stable"
   # install docker
   sudo apt install docker-ce docker-compose containerd.io -y
   # enable and start docker service
   sudo systemctl enable docker && sudo systemctl start docker
   # add the current user to the docker group
   sudo usermod -aG docker $USER
   # reauthenticate for the new group membership to take effect
   su - $USER

## Running draw.io

1. Now that Docker is installed, run the following command to run draw.io
   # run draw.io
   docker run -d --name drawio -p 8080:8080 --restart=unless-stopped jgraph/drawio
2. Open a web browser and navigate to http://DNSorIP:8080
   NOTE: to disable saving to cloud storage, add /?offline=1 (IE http://DNSorIP:8080/?offline=1)
3. Welcome to draw.io