> For the complete documentation index, see [llms.txt](https://docs.reviactyl.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.reviactyl.app/project/tutorial/installing-docker.md).

# Installing Docker

For a quick install of Docker CE, you can use the command below:

```bash
curl -sSL https://get.docker.com/ | CHANNEL=stable sudo sh
```

## Installing Docker CE

If the above command does not work, please refer to the [official Docker documentation](https://docs.docker.com/engine/install/) on how to install Docker CE on your server.

## Start Docker on Boot

If you are on an operating system with systemd (Ubuntu 16+, Debian 8+, CentOS 7+) run the command below to have Docker start when you boot your machine.

```bash
sudo systemctl enable --now docker
```

## Enabling Swap

On most systems, Docker will be unable to setup swap space by default. You can confirm this by running `docker info` and looking for the output of `WARNING: No swap limit support` near the bottom.

Enabling swap is entirely optional, but we recommended doing it if you will be hosting for others and to prevent OOM errors.

To enable swap, open `/etc/default/grub` as a root user and find the line starting with `GRUB_CMDLINE_LINUX_DEFAULT`. Make sure the line includes `swapaccount=1` somewhere inside the double-quotes.

After that, run `sudo update-grub` followed by `sudo reboot` to restart the server and have swap enabled. Below is an example of what the line should look like, *do not copy this line verbatim. It often has additional OS-specific parameters.*

```bash
GRUB_CMDLINE_LINUX_DEFAULT="swapaccount=1"
```

{% hint style="info" %}
Some Linux distros may ignore `GRUB_CMDLINE_LINUX_DEFAULT`. Therefore you might have to use `GRUB_CMDLINE_LINUX` instead should the above variable not work for you.
{% endhint %}


---

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