Switch remaining services from nomad host volumes to docker volumes.

services/grafana.hcl

@@ -8,17 +8,13 @@ job "grafana" {
       }
     }
 
-    volume "appdata" {
-      type = "host"
-      source = "appdata-grafana"
-    }
-
     task "grafana" {
       driver = "docker"
 
       config {
         image = "grafana/grafana-enterprise"
         ports = [ "http" ]
+        volumes = [ "/data/compute/appdata/grafana:/var/lib/grafana" ]
       }
 
       env {
@@ -26,11 +22,6 @@ job "grafana" {
         GF_SERVER_HTTP_PORT = "${NOMAD_PORT_http}"
       }
 
-      volume_mount {
-        volume = "appdata"
-        destination = "/var/lib/grafana"
-      }
-
       service {
         port = "http"
 	name = "grafana"