litefs.yml

# This directory is where your application will access the database.
fuse:
  dir: "/litefs"

# This directory is where LiteFS will store internal data.
# You must place this directory on a persistent volume.
data:
  dir: "/var/lib/litefs"

lease:
  type: "consul"

  # Specifies if this node can become primary. The expression below evaluates
  # to true on nodes that are run in the primary region. Nodes in other regions
  # act as non-candidate, read-only replicas.
  candidate: ${FLY_REGION == PRIMARY_REGION}

  # If true, then the node will automatically become primary after it has
  # connected with the cluster and sync'd up. This makes it easier to run
  # migrations on start up.
  promote: true

  # The API URL that other nodes will use to connect to this node.
  advertise-url: "http://${FLY_ALLOC_ID}.vm.${FLY_APP_NAME}.internal:20202"

  consul:
    # The URL of the Consul cluster.
    url: "${FLY_CONSUL_URL}"

    # A unique key shared by all nodes in the LiteFS cluster.
    # Change this if you are running multiple clusters in a single app!
    key: "${FLY_APP_NAME}/primary"

exec:
  # Then run the application server on all nodes.
  - cmd: "/app/bin/server"