diff --git a/magnum/templates/mesos/fragments/write-heat-params-master.sh b/magnum/templates/mesos/fragments/write-heat-params-master.sh
index 5584479038..6b0a8898e5 100644
--- a/magnum/templates/mesos/fragments/write-heat-params-master.sh
+++ b/magnum/templates/mesos/fragments/write-heat-params-master.sh
@@ -5,4 +5,7 @@ cat > /etc/sysconfig/heat-params <<EOF
 MESOS_MASTERS_IPS="$MESOS_MASTERS_IPS"
 CLUSTER_NAME="$CLUSTER_NAME"
 QUORUM="$((($NUMBER_OF_MASTERS+1)/2))"
+HTTP_PROXY="$HTTP_PROXY"
+HTTPS_PROXY="$HTTPS_PROXY"
+NO_PROXY="$NO_PROXY"
 EOF
diff --git a/magnum/templates/mesos/mesoscluster.yaml b/magnum/templates/mesos/mesoscluster.yaml
index b0653a120e..d9c23fb3f0 100644
--- a/magnum/templates/mesos/mesoscluster.yaml
+++ b/magnum/templates/mesos/mesoscluster.yaml
@@ -159,6 +159,12 @@ resources:
           type: String
         - name: QUORUM
           type: String
+        - name: HTTP_PROXY
+          type: String
+        - name: HTTPS_PROXY
+          type: String
+        - name: NO_PROXY
+          type: String
 
   configure_master:
     type: OS::Heat::SoftwareConfig
@@ -166,6 +172,12 @@ resources:
       group: script
       config: {get_file: fragments/configure-mesos-master.sh}
 
+  add_proxy_master:
+    type: OS::Heat::SoftwareConfig
+    properties:
+      group: script
+      config: {get_file: fragments/add-proxy.sh}
+
   start_services_master:
     type: OS::Heat::SoftwareConfig
     properties:
@@ -186,6 +198,9 @@ resources:
         MESOS_MASTERS_IPS: {list_join: [' ', {get_attr: [mesos_masters, mesos_master_ip]}]}
         CLUSTER_NAME: {get_param: cluster_name}
         NUMBER_OF_MASTERS: {get_param: number_of_masters}
+        HTTP_PROXY: {get_param: http_proxy}
+        HTTPS_PROXY: {get_param: https_proxy}
+        NO_PROXY: {get_param: no_proxy}
 
   configure_master_deployment:
     type: OS::Heat::SoftwareDeploymentGroup
@@ -195,10 +210,18 @@ resources:
       config: {get_resource: configure_master}
       servers: {get_attr: [mesos_masters, attributes, mesos_server_id]}
 
-  start_services_master_deployment:
+  add_proxy_master_deployment:
     type: OS::Heat::SoftwareDeploymentGroup
     depends_on:
       - configure_master_deployment
+    properties:
+      config: {get_resource: add_proxy_master}
+      servers: {get_attr: [mesos_masters, attributes, mesos_server_id]}
+
+  start_services_master_deployment:
+    type: OS::Heat::SoftwareDeploymentGroup
+    depends_on:
+      - add_proxy_master_deployment
     properties:
       config: {get_resource: start_services_master}
       servers: {get_attr: [mesos_masters, attributes, mesos_server_id]}