Refactoring of SL related k8s services

Changed the following SL k8s services:
- alertmanager
- fluentd
- prometheus

Change-Id: I461e55d0f607a9aa3476d338f3e38ea642bcc63b
Related-Bug: PROD-23674
diff --git a/kubernetes/common/addons/alertmanager.yml b/kubernetes/common/addons/alertmanager.yml
index c7483cf..dcc6702 100644
--- a/kubernetes/common/addons/alertmanager.yml
+++ b/kubernetes/common/addons/alertmanager.yml
@@ -2,17 +2,14 @@
 - system.prometheus.alertmanager.container
 parameters:
   _param:
-    kubernetes_alertmanager_enabled: false
+    kubernetes_alertmanager_enabled: true
     kubernetes_alertmanager_image: ${_param:mcp_docker_registry}/openstack-docker/alertmanager:2018.8.0
-    kubernetes_alertmanager_namespace: stacklight
-    kubernetes_alertmanager_node_port: 31993
   kubernetes:
     common:
       addons:
         alertmanager:
           enabled: ${_param:kubernetes_alertmanager_enabled}
           image: ${_param:kubernetes_alertmanager_image}
-          namespace: ${_param:kubernetes_alertmanager_namespace}
           dir:
             config: ${_param:prometheus_alertmanager_config_directory}
             data: ${_param:prometheus_alertmanager_data_directory}
@@ -21,4 +18,3 @@
           bind:
             address: ${prometheus:alertmanager:bind:address}
             port: ${prometheus:alertmanager:bind:port}
-            node_port: ${_param:kubernetes_alertmanager_node_port}