Remote developer environments on Fly.io
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.
Log in to Fly.io with the CLI:
flyctl auth login
Create a new fly postgres database:
flyctl postgres create --name <postgres-app-name>
Create a new fly app:
flyctl apps create --name <coder-app-name>
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.
Create a new secret with the name
CODER_PG_CONNECTION_URLand 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>
fly.tomlfile and update as per the example below:
app = "<coder-app-name>" # Replace <coder-app-name> with the name of your app kill_signal = "SIGINT" kill_timeout = 5 primary_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
Deploy the app:
Run the following command to deploy the app from the directory where the
fly.tomlfile is located:
flyctl deploy --app <coder-app-name>
Scale the Coder app to 1GB of memory:
flyctl scale memory 1024 --app <coder-app-name>
Congratulations! You've deployed Coder on Fly.io!. Go to the URL of your app and create your first user!
If you want to use a custom domain, you can do so by following the instructions here.
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.
Install Coder locally by following the instructions here or if you are on linux/macOS, you can run the following command:
curl -fsSL https://coder.com/get-coder.sh | bash
Login to Coder:
coder login <coder-url>
Create a new template by running the following command and following the prompts:
coder templates init
fly-docker-imagetemplate and cd into the
Create the new template by running the following command from the
coder templates push fly-docker-image --variable fly_api_token=$(flyctl auth token)
If Coder is deployed as a fly.io app, instead of setting variable
fly_api_token you can also set a fly.io secret with the name
flyctl secrets set FLY_API_TOKEN=$(flyctl auth token)
Go to the Coder UI and create a new workspace using the
This will deploy code-server on a Fly.io machine using the docker image. You can access the code-server instance by clicking on the
Code Server button.
To update the Coder version, run
flyctl deploy --aap <coder-app-name> again and it will pull the latest version of Coder.
To modify or write your first coder template, check out the template docs.
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