Fly.io is a platform for deploying applications to the edge. It's a great fit for Coder because it's easy to deploy, scale, and manage. In this guide, we'll walk through deploying Coder on Fly.io and creating remote workspaces as Fly.io (firecracker) machines.

Prerequisites

• A Fly.ioaccount.
• flyctl installed on your local machine.

Deploy Coder

1. Log in to Fly.io with the CLI:

   flyctl auth login

2. Create a new fly postgres database:

   flyctl postgres create --name <postgres-app-name>

3. Create a new fly app:

   flyctl apps create --name <coder-app-name>

4. Connect to the database with the coder fly app:

   flyctl postgres attach --app <coder-app-name> <postgres-app-name>

   Important Copy the connection string that is displayed in the terminal. You'll need it in the next step.

5. Create a new secret with the nameCODER_PG_CONNECTION_URL and the value as the connection string you copied in the previous step.

   flyctl secrets set CODER_PG_CONNECTION_URL=<connection-string> --app <coder-app-name>

6. Edit thefly.toml file and update as per the example below:

   app = "<coder-app-name>" # Replace <coder-app-name> with the name of your appkill_signal = "SIGINT"kill_timeout = 5primary_region = "ams"  # See a list of regions here: https://fly.io/docs/reference/regions/[experimental]    auto_rollback = true    private_network = true  # Allows Coder to connect to the database[build]     image = "ghcr.io/coder/coder:latest"[env]    CODER_ACCESS_URL = "https://<coder-app-name>.fly.dev" # Replace <app-name> with the name of your app    CODER_HTTP_ADDRESS = "0.0.0.0:3000"    #CODER_VERBOSE = "true" # Uncomment this if you want to see more logs    CODER_TELEMETRY_INSTALL_SOURCE = "fly.io"[[services]]    protocol = "tcp"    internal_port = 3000    processes = ["app"]    [[services.ports]]        port = 80        handlers = ["http"]        force_https = true    [[services.ports]]        port = 443        handlers = ["tls", "http"]    [services.concurrency]        type = "connections"        hard_limit = 25

7. Deploy the app:

   Run the following command to deploy the app from the directory where thefly.toml file is located:

   flyctl deploy --app <coder-app-name>

8. Scale the Coder app to 1GB of memory:

   flyctl scale memory 1024 --app <coder-app-name>

9. Congratulations! You've deployed Coder on Fly.io!. Go to the URL of your app and create your first user!

Create your first template

A template is a set of instructions that Coder uses to create a workspace. In this section, we'll create a template that uses a Fly.io machine as the workspace.

1. Install Coder locally by following the instructionshere or if you are on linux/macOS, you can run the following command:

   curl -fsSL https://coder.com/install.sh | bash

2. Login to Coder:

   coder login <coder-url>

3. Create a new template by running the following command and following the prompts:

   coder templates init

4. Choose thefly-docker-image template and cd into thefly-docker-image directory.bashcd fly-docker-image && coder templates create

5. Create the new template by running the following command from thefly-docker-image directory:

   coder templates push fly-docker-image --variable fly_api_token=$(flyctl auth token)

If Coder is deployed as a fly.io app, instead of setting variablefly_api_token you can also set a fly.io secret with the nameFLY_API_TOKEN

Go to the Coder UI and create a new workspace using thefly-docker-image template.

This will deploy code-server on a Fly.io machine using the docker image. You can access the code-server instance by clicking on theCode Server button.

Update Coder

To update the Coder version, runflyctl deploy --aap <coder-app-name> again and it will pull the latest version of Coder.

Next Steps

To modify or write your first coder template, check out thetemplate docs.

Have questions?Contact us orjoin us on Discord

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