diff --git a/support/rundk b/support/rundk
index d6ca6c4..adf2ded 100755
--- a/support/rundk
+++ b/support/rundk
@@ -58,6 +58,7 @@ IMAGENAME=
 function eecho() { echo "$*" 1>&2; }
 function eerror() { eecho "ERROR: $*"; }
 function die() { [ $# -gt 0 ] && eerror "$*"; exit 1; }
+function is_defined() { [ -n "$(declare -p "$1" 2>/dev/null)" ]; }
 function in_path() { [ -n "$1" -a -x "$(which "$1" 2>/dev/null)" ]; }
 function composer() {
     cd "$PROJDIR/$COMPOSERDIR" || exit 1
@@ -122,6 +123,12 @@ if [ -z "$_RUNDK_IN_DOCKER" ]; then
     ############################################################################
     # Lancement depuis l'extérieur du container
 
+    # recenser les valeur de proxy
+    declare -A PROXY_VARS
+    for var in {HTTPS,ALL,NO}_PROXY {http,https,all,no}_proxy; do
+        is_defined "$var" && PROXY_VARS[${var,,}]="${!var}"
+    done
+
     ## Charger ~/.dkbuild.env
 
     APT_PROXY=
@@ -298,6 +305,12 @@ OPTIONS
             for arg in "${BUILD_ARGS[@]}"; do
                 args+=(--build-arg "$arg=${!arg}")
             done
+            for arg in "${!PROXY_VARS[@]}"; do
+                args+=(--build-arg "$arg=${PROXY_VARS[$arg]}")
+            done
+            for host in "${HOST_MAPPINGS[@]}"; do
+                args+=(--add-host "$host")
+            done
             mkdir -p /tmp/rundk-build
             docker build "${args[@]}" /tmp/rundk-build || exit 1
 
@@ -363,6 +376,9 @@ OPTIONS
         -e _RUNDK_UID="$uid"
         -e _RUNDK_GID="$gid"
     )
+    for arg in "${!PROXY_VARS[@]}"; do
+        args+=(--e "$arg=${PROXY_VARS[$arg]}")
+    done
     for host in "${HOST_MAPPINGS[@]}"; do
         args+=(--add-host "$host")
     done