how-to-set-up-health-checks

The Frontend Service supports TCP or gRPC health checks on port 7233.

If you use Nomad to manage your containers, the check stanza would look like this for TCP:

service {
  check {
    type     = "tcp"
    port     = 7233
    interval = "10s"
    timeout  = "2s"
  }

or like this for gRPC (requires Consul ≥ 1.0.5):

service {
  check {
    type         = "grpc"
    port         = 7233
    grpc_service = "grpc.health.v1.Health"
    interval     = "10s"
    timeout      = "2s"
  }