Merge pull request docker-archive#465 from docker/force-pull

Force pull of docker images during builds

Author: nathanleclaire

aws/dockerfiles/build_and_push_all.sh

@@ -8,6 +8,6 @@ VERSION="${VERSION:-latest}"
 for IMAGE in shell init guide ddc-init cloud meta
 do
 	FINAL_IMAGE="${NAMESPACE}/${IMAGE}-aws:${VERSION}"
-	docker build -t "${FINAL_IMAGE}" -f "Dockerfile.${IMAGE}" .
+	docker build --pull -t "${FINAL_IMAGE}" -f "Dockerfile.${IMAGE}" .
 	docker push "${FINAL_IMAGE}"
 done

azure/dockerfiles/build_and_push_all.sh

@@ -8,7 +8,7 @@ VERSION="${VERSION:-latest}"
 for IMAGE in init guide create-sp ddc-init cloud logger
 do
 	FINAL_IMAGE="${NAMESPACE}/${IMAGE}-azure:${VERSION}"
-	docker build -t "${FINAL_IMAGE}" -f "Dockerfile.${IMAGE}" .
+	docker build --pull -t "${FINAL_IMAGE}" -f "Dockerfile.${IMAGE}" .
 	docker push "${FINAL_IMAGE}"
 done