only one capacity

apps/drone/live-runner.hcl

@@ -45,6 +45,7 @@ job "drone-runner" {
         DRONE_RPC_SECRET          = "7eb685ed81d0c34bafc5efa7783c20b2"
         DRONE_RPC_HOST            = "drone.service.nr5"
         DRONE_RPC_PROTO           = "http"
+        DRONE_RUNNER_CAPACITY     = 1
         DRONE_LOGS_DEBUG          = true
         DRONE_LOGS_TRACE          = true
       }

apps/drone/live.hcl

@@ -67,6 +67,7 @@ job "drone" {
         DRONE_RPC_SECRET          = "7eb685ed81d0c34bafc5efa7783c20b2"
         DRONE_SERVER_HOST         = "drone.service.nr5"
         DRONE_SERVER_PROTO        = "http"
+        DRONE_JSONNET_ENABLED     = true
         DRONE_LOGS_DEBUG          = true 
         DRONE_LOGS_TRACE          = true
       }