diff --git a/base_operator_stack.jsonnet b/base_operator_stack.jsonnet
index 79085b4..68cb364 100644
--- a/base_operator_stack.jsonnet
+++ b/base_operator_stack.jsonnet
@@ -1,13 +1,15 @@
 local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
+local vars = import 'vars.jsonnet';
+
 {
   _config+:: {
     namespace: 'monitoring',
 
     urls+:: {
-      prom_ingress: 'prometheus.internal.carlosedp.com',
-      alert_ingress: 'alertmanager.internal.carlosedp.com',
-      grafana_ingress: 'grafana.internal.carlosedp.com',
-      grafana_ingress_external: 'grafana.cloud.carlosedp.com',
+      prom_ingress: 'prometheus.' + vars.suffixDomain,
+      alert_ingress: 'alertmanager.' + vars.suffixDomain,
+      grafana_ingress: 'grafana.' + vars.suffixDomain,
+      grafana_ingress_external: 'grafana.' + vars.suffixDomain,
     },
 
     prometheus+:: {
@@ -41,13 +43,6 @@ local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
     grafana+:: {
       config: {
         sections: {
-          //   database: { path: '/data/grafana.db' },
-          //   paths: {
-          //     data: '/var/lib/grafana',
-          //     logs: '/var/lib/grafana/log',
-          //     plugins: '/var/lib/grafana/plugins',
-          //     provisioning: '/etc/grafana/provisioning',
-          //   },
           session: { provider: 'memory' },
           'auth.basic': { enabled: false },
           'auth.anonymous': { enabled: false },
@@ -56,7 +51,7 @@ local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
             host: 'smtp-server.monitoring.svc:25',
             user: '',
             password: '',
-            from_address: 'carlosedp@gmail.com',
+            from_address: vars.grafana.from_address,
             from_name: 'Grafana Alert',
             skip_verify: true,
           },
@@ -74,6 +69,8 @@ local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
       spec+: {
         retention: '15d',
         externalUrl: 'http://' + $._config.urls.prom_ingress,
+      }
+      + ( if vars.enablePersistence['prometheus'] then {
         storage: {
           volumeClaimTemplate:
             pvc.new() +
@@ -82,12 +79,12 @@ local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
           // Uncomment below to define a StorageClass name
           //+ pvc.mixin.spec.withStorageClassName('nfs-master-ssd'),
         },
-      },
+      } else {}),
     },
   },
 
   // Override deployment for Grafana data persistence
-  grafana+:: {
+  grafana+:: if vars.enablePersistence['grafana'] then {
     deployment+: {
       spec+: {
         template+: {
@@ -116,7 +113,7 @@ local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
       pvc.mixin.metadata.withName('grafana-storage') +
       pvc.mixin.spec.withAccessModes('ReadWriteMany') +
       pvc.mixin.spec.resources.withRequests({ storage: '2Gi' }),
-  },
+  } else {},
 
   grafanaDashboards+:: $._config.grafanaDashboards,
 
diff --git a/main.jsonnet b/main.jsonnet
index de53728..58b851b 100644
--- a/main.jsonnet
+++ b/main.jsonnet
@@ -1,13 +1,5 @@
 local k = import 'ksonnet/ksonnet.beta.3/k.libsonnet';
-
-// Enable or disable additional modules
-local installModules = {
-  'arm-exporter': true,
-  metallb: true,
-  traefik: true,
-  'ups-exporter': true,
-  'elastic-exporter': true,
-};
+local vars = import 'vars.jsonnet';
 
 local kp = (import 'kube-prometheus/kube-prometheus.libsonnet')
            + (import 'kube-prometheus/kube-prometheus-anti-affinity.libsonnet')
@@ -16,11 +8,11 @@ local kp = (import 'kube-prometheus/kube-prometheus.libsonnet')
            + (import 'base_operator_stack.jsonnet')
            + (import 'smtp_server.jsonnet')
            // Additional Modules
-           + (if installModules['arm-exporter'] then (import 'arm_exporter.jsonnet') else {})
-           + (if installModules.metallb then (import 'metallb.jsonnet') else {})
-           + (if installModules.traefik then (import 'traefik.jsonnet') else {})
-           + (if installModules['ups-exporter'] then (import 'ups_exporter.jsonnet') else {})
-           + (if installModules['elastic-exporter'] then (import 'elasticsearch_exporter.jsonnet') else {})
+           + (if vars.installModules['arm-exporter'] then (import 'arm_exporter.jsonnet') else {})
+           + (if vars.installModules.metallb then (import 'metallb.jsonnet') else {})
+           + (if vars.installModules.traefik then (import 'traefik.jsonnet') else {})
+           + (if vars.installModules['ups-exporter'] then (import 'ups_exporter.jsonnet') else {})
+           + (if vars.installModules['elastic-exporter'] then (import 'elasticsearch_exporter.jsonnet') else {})
            // Load image versions last to override default from modules
            + (import 'image_sources_versions.jsonnet');
 
@@ -35,13 +27,13 @@ local kp = (import 'kube-prometheus/kube-prometheus.libsonnet')
 { ['ingress-' + name]: kp.ingress[name] for name in std.objectFields(kp.ingress) } +
 { ['smtp-server-' + name]: kp.smtpServer[name] for name in std.objectFields(kp.smtpServer) } +
 // Additional Modules
-(if installModules['arm-exporter'] then
+(if vars.installModules['arm-exporter'] then
    { ['arm-exporter-' + name]: kp.armExporter[name] for name in std.objectFields(kp.armExporter) } else {}) +
-(if installModules.metallb then
+(if vars.installModules.metallb then
    { ['metallb-' + name]: kp.metallb[name] for name in std.objectFields(kp.metallb) } else {}) +
-(if installModules.traefik then
+(if vars.installModules.traefik then
    { ['traefik-' + name]: kp.traefik[name] for name in std.objectFields(kp.traefik) } else {}) +
-(if installModules['ups-exporter'] then
+(if vars.installModules['ups-exporter'] then
    { ['ups-exporter-' + name]: kp.upsExporter[name] for name in std.objectFields(kp.upsExporter) } else {}) +
-(if installModules['elastic-exporter'] then
+(if vars.installModules['elastic-exporter'] then
    { ['elasticexporter-' + name]: kp.elasticExporter[name] for name in std.objectFields(kp.elasticExporter) } else {})
diff --git a/vars.jsonnet b/vars.jsonnet
new file mode 100644
index 0000000..145b502
--- /dev/null
+++ b/vars.jsonnet
@@ -0,0 +1,24 @@
+{
+  // Enable or disable additional modules
+  installModules: {
+    'arm-exporter': false,
+    metallb: false,
+    traefik: false,
+    'ups-exporter': false,
+    'elastic-exporter': false,
+  },
+
+  // Setting these to false, defaults to emptyDirs
+  enablePersistence: {
+    prometheus: false,
+    grafana: false,
+  },
+
+  // Domain suffix for the ingresses
+  suffixDomain: "internal.carlosedp.com",
+
+  // Grafana from email
+  grafana: {
+    from_address: 'carlosedp@gmail.com',
+  },
+}
\ No newline at end of file