add missing func related changes (knative#103)

hack/build.sh.d/func.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+# There no midstream image currently, fallback to upstream one.
+readonly func_util_image="${KN_PLUGIN_FUNC_UTIL_IMAGE:-quay.io/boson/alpine-socat:1.7.4.3-r1-non-root}"
+export EXTERNAL_LD_FLAGS="${EXTERNAL_LD_FLAGS:-} \
+-X knative.dev/func/k8s.SocatImage=${func_util_image} \
+-X knative.dev/func/k8s.TarImage=${func_util_image}"

openshift-serverless-clients.spec

@@ -7,7 +7,7 @@
 %global kn_release 1
 %global kn_cli_version v%{kn_version}
 %global kn_event_image %{nil}
-%global kn_func_image %{nil}
+%global kn_func_util_image %{nil}
 %global source_dir knative-client
 %global source_tar %{source_dir}-%{kn_version}-%{kn_release}.tar.gz
 
@@ -32,7 +32,7 @@ Client kn provides developer experience to work with Knative Serving APIs.
 %build
 TAG=%{kn_cli_version} \
 KN_PLUGIN_EVENT_SENDER_IMAGE=%{kn_event_image} \
-KN_PLUGIN_FUNC_SOCAT_IMAGE=%{kn_func_image} \
+KN_PLUGIN_FUNC_UTIL_IMAGE=%{kn_func_util_image} \
 make build-cross
 
 %install