Fly.io ​

Fly.io is a public cloud built for developers who ship.

Electric and Fly ​

You can use Fly to deploy any or all components of the Electric stack:

One of Fly's specialities is deploying Elixir applications. So Fly is especially good for deploying the Electric sync service and/or Phoenix applications using Electric.

Need context?

See the Deployment guide for more details.

Deploy Postgres ​

Fly Postgres is not a managed Postgres service. See the general advice on Running Postgres in the deployment guide for information on how to configure Postgres to work with Electric.

Fly's Supabase Postgres is a managed Postgres service, powered by Supabase. If you use it, make sure to connect on the IPv6 DATABASE_URL rather than the DATABASE_POOLER_URL. See the Supabase deployment docs and the IPv6 section of the troubleshooting guide for more information about IPv6 support.

Deploy Electric ​

Copy the following config into a file called fly.toml, replacing the app name and DATABASE_URL:

toml
app = "YOUR_UNIQUE_APP_NAME"

[build]
  image = "electricsql/electric:latest"

[env]
  DATABASE_URL = "postgresql://..."
  ELECTRIC_DATABASE_USE_IPV6 = true

[http_service]
  internal_port = 3000
  force_https = true

  [[http_service.checks]]
    interval = "10s"
    timeout = "2s"
    grace_period = "20s"
    method = "GET"
    path = "/v1/health"

Using the flyctl client, in the same directory as fly.toml, run:

shell
flyctl launch --copy-config --ha=false

Hit the health check endpoint to verify that everything is running OK:

console
$ curl https://YOUR_UNIQUE_APP_NAME.fly.dev/v1/health
{"status":"active"}

Deploy your app ​

You can run most kinds of apps on Fly, including static sites.