Images: add pull all images to makefile

This PS adds a `pull-all-images` target to the makefile, which
requires yq to operate.

Change-Id: I58b871b99f48cbd636b3db66db812be3dfc1a204

Makefile

@@ -44,4 +44,7 @@ clean:
 	rm -f */requirements.lock
 	-rmdir -p */charts
 
+pull-all-images:
+	@./tools/pull-images.sh
+
 .PHONY: $(EXCLUDES) $(CHARTS)

tools/gate/funcs/common.sh

@@ -65,6 +65,7 @@ function base_install {
   sudo -H pip install --upgrade pip
   sudo -H pip install --upgrade setuptools
   sudo -H pip install pyyaml
+  sudo -H pip install yq
 
   if [ "x$SDN_PLUGIN" == "xlinuxbridge" ]; then
     sdn_lb_support_install

tools/gate/setup_gate.sh

@@ -60,6 +60,7 @@ if [ "x$INTEGRATION_TYPE" == "xlinter" ]; then
   helm_plugin_template_install
   helm_template_run
 else
+  cd ${WORK_DIR}; make pull-all-images
   # Setup the K8s Cluster
   if [ "x$INTEGRATION" == "xaio" ]; then
    bash ${WORK_DIR}/tools/gate/kubeadm_aio.sh

tools/pull-images.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+set -x
+for CHART_DIR in ./*/ ; do
+  if [ -e ${CHART_DIR}values.yaml ]; then
+    for IMAGE in $(cat ${CHART_DIR}values.yaml | yq '.images.tags | map(.) | join(" ")' | tr -d '"'); do
+      docker inspect $IMAGE >/dev/null|| docker pull $IMAGE
+    done
+  fi
+done