Handle the hardcoded configuration values

This patch allows to customize the hardcoded configuration values,
as well as introduce new configuration options for neutron services
by configmap template with the specified section:

    neutron:
      server:
        configmap:
          neutron_server:
            quotas:
              quota_network: 20
              quota_subnet: 10
              quota_port: 100
          gateway:
            metadata_agent:
              DEFAULT:
                metadata_workers: 10
                debug: True
              agent:
                report_interval: 30
            l3_agent:
              DEFAULT:
                agent_mode : dvr
              agent:
                report_interval: 40
            dhpc_agent:
              DEFAULT:
                ovs_vsctl_timeout: 12
                resync_interval: 60
              agent:
                report_interval: 60

Change-Id: If4ae2530a0d0ebe71d0689fc2a5ffb121f49acbd
Related-Prod: PROD-29040
diff --git a/tests/pillar/control_cluster.sls b/tests/pillar/control_cluster.sls
index e8cf760..7e0628d 100644
--- a/tests/pillar/control_cluster.sls
+++ b/tests/pillar/control_cluster.sls
@@ -79,3 +79,17 @@
         enabled: true
         strategy: ENCRYPT
         secret_key: secret
+    configmap:
+      neutron_server:
+        DEFAULT:
+          max_subnet_host_routes: 30
+          max_routes: 60
+          debug_iptables_rules: True
+        quotas:
+          quota_network: 20
+          quota_subnet: 10
+          quota_port: 100
+        matchmaker_redis:
+          host: 127.0.0.1
+          port: 6379
+          password: pswd
diff --git a/tests/pillar/gateway_legacy.sls b/tests/pillar/gateway_legacy.sls
index 5776d69..aa65179 100644
--- a/tests/pillar/gateway_legacy.sls
+++ b/tests/pillar/gateway_legacy.sls
@@ -28,3 +28,21 @@
     agents:
       dhcp:
         ovs_use_veth: True
+    configmap:
+      metadata_agent:
+        DEFAULT:
+          metadata_workers: 10
+          debug: True
+        agent:
+          report_interval: 30
+      l3_agent:
+        DEFAULT:
+          agent_mode : dvr
+        agent:
+          report_interval: 40
+      dhcp_agent:
+        DEFAULT:
+          ovs_vsctl_timeout: 12
+          resync_interval: 60
+        agent:
+          report_interval: 60