# Docker
Coder with Docker has the following advantages:
- Simple installation (everything is on a single box)
- Workspace images are easily configured
- Workspaces share resources for burst operations
## Requirements
- A single macOS or Linux box
- A running Docker daemon
## Instructions
1. [Install and launch Coder](../install.md)
You will specify `CODER_ACCESS_URL=http://localhost:7080` since we're using
local Docker workspaces exclusively. `CODER_ACCESS_URL` is the external URL
to access Coder. The rest of the Docker quickstart guide will assume that
this is your Access URL.
You will also specify `CODER_ADDRESS=0.0.0.0:7080` which is the address to
serve the API and dashboard.
```bash
coder server --address $CODER_ADDRESS --access-url $CODER_ACCESS_URL
```
1. Run `coder login http://localhost:7080` in a new terminal and follow the
interactive instructions to create your user.
1. Pull the example template:
```bash
echo "docker" | coder templates init
cd docker
# You should see a `main.tf` file in this directory
```
1. Open up `main.tf` in your preferred editor to edit the images
You can skip this step if you're fine with our default, generic OS images.
Search for the following section in `main.tf`:
```hcl
...
variable "docker_image" {
description = "Which Docker image would you like to use for your workspace?"
# The codercom/enterprise-* images are only built for amd64
default = "codercom/enterprise-base:ubuntu"
validation {
condition = contains(["codercom/enterprise-base:ubuntu", "codercom/enterprise-node:ubuntu",
"codercom/enterprise-intellij:ubuntu", "codercom/enterprise-golang:ubuntu"], var.docker_image)
error_message = "Invalid Docker image!"
}
}
...
```
And edit the strings in `condition = contains([...])` and `default = ...`
with your preferred images.
1. Push up the template to Coder with `coder templates create`
1. Open the dashboard in your browser (http://localhost:7080) to create your
first workspace:
Then navigate to `Templates > docker > Create workspace`
Now wait a few moments for the workspace to build... After the first build
the image is cached and subsequent builds will take a few seconds.
1. All done!
Open up a web application or [SSH in](../ides.md#ssh-configuration).
## Next Steps
- [Learn more about template configuration](../templates.md)
- [Configure more IDEs](../ides/web-ides.md)