Fixes for pegleg.sh

Update image reference to quay.io/airshipit vs quay.io/attcomdev.

Set host networking for running pegleg container.
Recent Ubuntu releases are using 127.0.0.53 in /etc/resolv.conf,
and host networking mode is a way to work around local DNS.

Change-Id: Ib3e39e6f83e0bb7a50f92f85b791c8d0b59664d1

tools/pegleg.sh

@@ -3,7 +3,7 @@
 set -e
 
 : ${WORKSPACE:=$(pwd)}
-: ${IMAGE:=quay.io/attcomdev/pegleg:latest}
+: ${IMAGE:=quay.io/airshipit/pegleg:latest}
 
 echo
 echo "== NOTE: Workspace $WORKSPACE is the execution directory in the container =="
@@ -14,7 +14,7 @@ echo
 container_workspace_path='/workspace'
 
 docker run --rm -t \
-    --net=none \
+    --net=host \
     --workdir="$container_workspace_path" \
     -v "${WORKSPACE}:$container_workspace_path" \
     "${IMAGE}" \