job "horizontally_scalable" { datacenters = ["dc1"] type = "service" update { health_check = "task_states" } constraint { attribute = "${attr.kernel.name}" value = "linux" } group "horizontally_scalable" { count = 4 scaling { min = 2 max = 3 enabled = true policy {} } task "test" { driver = "raw_exec" config { command = "bash" args = ["-c", "sleep 15000"] } } } }