diff --git a/installer/conf/container.conf b/installer/conf/container.conf
index 4cb9e6913..0b26357f0 100755
--- a/installer/conf/container.conf
+++ b/installer/conf/container.conf
@@ -76,7 +76,7 @@
   heartbeat_type tcp
 
   <server>
-    host healthmodel-replicaset-service.kube-system
+    host "#{ENV['HEALTHMODEL_REPLICASET_SERVICE_ENDPOINT']}"
     port 25227
   </server>
 
diff --git a/installer/scripts/tomlparser.rb b/installer/scripts/tomlparser.rb
index 067586629..b66e1257e 100644
--- a/installer/scripts/tomlparser.rb
+++ b/installer/scripts/tomlparser.rb
@@ -16,6 +16,7 @@
 @logTailPath = "/var/log/containers/*.log"
 @logExclusionRegexPattern = "(^((?!stdout|stderr).)*$)"
 @excludePath = "*.csv2" #some invalid path
+@enable_health_model = false
 
 # Use parser to parse the configmap toml file to a ruby structure
 def parseConfigMap(path)
@@ -121,10 +122,12 @@ def populateSettingValuesFromConfigMap(parsedConfig)
   end
 
   begin
-    if !parsedConfig.nil?  && !parsedConfig[:agent_settings][:health_model].nil? && !parsedConfig[:agent_settings][:health_model][:enabled].nil?
+    if !parsedConfig.nil? && !parsedConfig[:agent_settings].nil? && !parsedConfig[:agent_settings][:health_model].nil? && !parsedConfig[:agent_settings][:health_model][:enabled].nil?
         @enable_health_model = parsedConfig[:agent_settings][:health_model][:enabled]
-        puts "enable_health_model = #{@enable_health_model}"
+    else
+        @enable_health_model = false
     end
+    puts "enable_health_model = #{@enable_health_model}"
   rescue => errorStr
     puts "config::error:Exception while reading config settings for health_model enabled setting - #{errorStr}, using defaults"
     @enable_health_model = false
@@ -140,7 +143,9 @@ def populateSettingValuesFromConfigMap(parsedConfig)
     Dir["/etc/config/settings/*settings"].each{|file|
         puts "Parsing File #{file}"
         settings = parseConfigMap(file)
-        configMapSettings = configMapSettings.merge(settings)
+        if !settings.nil?
+            configMapSettings = configMapSettings.merge(settings)
+        end
     }
 
   if !configMapSettings.nil?
diff --git a/source/code/plugin/out_mdm.rb b/source/code/plugin/out_mdm.rb
index 4b9d50a29..b8d10090d 100644
--- a/source/code/plugin/out_mdm.rb
+++ b/source/code/plugin/out_mdm.rb
@@ -55,8 +55,9 @@ def start
         if aks_region.to_s.empty?
           @log.info "Environment Variable AKS_REGION is not set.. "
           @can_send_data_to_mdm = false
+        else
+          aks_region = aks_region.gsub(" ","")
         end
-        aks_region = aks_region.gsub(" ","")
 
         if @can_send_data_to_mdm
           @log.info "MDM Metrics supported in #{aks_region} region"