diff --git a/installers/install_docker_ce.sh b/installers/install_docker_ce.sh
index 5010f7e..16fb817 100755
--- a/installers/install_docker_ce.sh
+++ b/installers/install_docker_ce.sh
@@ -116,9 +116,6 @@
     return 0
 }
 
-OSM_BEHIND_PROXY=""
-DOCKER_PROXY_URL=""
-
 while getopts ":D:p:-: P" o; do
     case "${o}" in
         D)
@@ -149,12 +146,14 @@
     esac
 done
 
-source $OSM_DEVOPS/common/logging
-
+DEBUG_INSTALL=${DEBUG_INSTALL:-}
+DOCKER_PROXY_URL=${DOCKER_PROXY_URL:-}
+OSM_BEHIND_PROXY=${OSM_BEHIND_PROXY:-}
 echo "DEBUG_INSTALL=$DEBUG_INSTALL"
 echo "DOCKER_PROXY_URL=$DOCKER_PROXY_URL"
 echo "OSM_BEHIND_PROXY=$OSM_BEHIND_PROXY"
 echo "USER=$USER"
 
-install_docker_ce
+source $OSM_DEVOPS/common/logging
 
+install_docker_ce