diff --git a/images/maas-rack-controller/Dockerfile b/images/maas-rack-controller/Dockerfile
index 35b644c..2870066 100644
--- a/images/maas-rack-controller/Dockerfile
+++ b/images/maas-rack-controller/Dockerfile
@@ -8,6 +8,13 @@ LABEL org.opencontainers.image.source='https://git.openstack.org/openstack/airsh
 LABEL org.opencontainers.image.vendor='The Airship Authors'
 LABEL org.opencontainers.image.licenses='Apache-2.0'
 
+ARG HTTP_PROXY
+ARG HTTPS_PROXY
+ARG NO_PROXY
+ARG http_proxy
+ARG https_proxy
+ARG no_proxy
+
 ENV DEBIAN_FRONTEND noninteractive
 ENV container docker
 
diff --git a/images/maas-region-controller/Dockerfile b/images/maas-region-controller/Dockerfile
index cdc2811..29be3a9 100644
--- a/images/maas-region-controller/Dockerfile
+++ b/images/maas-region-controller/Dockerfile
@@ -8,6 +8,13 @@ LABEL org.opencontainers.image.source='https://git.openstack.org/openstack/airsh
 LABEL org.opencontainers.image.vendor='The Airship Authors'
 LABEL org.opencontainers.image.licenses='Apache-2.0'
 
+ARG HTTP_PROXY
+ARG HTTPS_PROXY
+ARG NO_PROXY
+ARG http_proxy
+ARG https_proxy
+ARG no_proxy
+
 ENV DEBIAN_FRONTEND noninteractive
 ENV container docker
 
diff --git a/images/sstream-cache/Dockerfile b/images/sstream-cache/Dockerfile
index d840a33..9e5ca1f 100644
--- a/images/sstream-cache/Dockerfile
+++ b/images/sstream-cache/Dockerfile
@@ -8,6 +8,13 @@ LABEL org.opencontainers.image.source='https://git.openstack.org/openstack/airsh
 LABEL org.opencontainers.image.vendor='The Airship Authors'
 LABEL org.opencontainers.image.licenses='Apache-2.0'
 
+ARG HTTP_PROXY
+ARG HTTPS_PROXY
+ARG NO_PROXY
+ARG http_proxy
+ARG https_proxy
+ARG no_proxy
+
 ARG SSTREAM_IMAGE=https://images.maas.io/ephemeral-v3/daily/
 ARG SSTREAM_RELEASE=xenial