Add skopeo OS, arch overrides (#3064)

Author: dsimansk

hack/lib/images.bash

@@ -15,6 +15,12 @@ registry_prefix_quay="quay.io/redhat-user-workloads/ocp-serverless-tenant/server
 registry_quay="${registry_prefix_quay}${quay_registry_app_version}"
 registry_redhat_io="registry.redhat.io/openshift-serverless-1"
 
+# Add extra flags to skopeo cmd, in case of MacOS add OS/arch overrides
+export SKOPEO_EXTRA_FLAGS="${SKOPE_EXTRA_FLAGS:-}"
+if [[ "$(uname -s)" == "Darwin" ]]; then
+  SKOPEO_EXTRA_FLAGS="${SKOPEO_EXTRA_FLAGS} --override-os linux --override-arch amd64"
+fi
+
 function get_serverless_operator_rhel_version() {
   sorhel --so-version="${CURRENT_VERSION}"
 }
@@ -336,7 +342,8 @@ function latest_konflux_image_sha() {
 function image_with_sha {
   image=${1:?"Provide image"}
 
-  digest=$(skopeo inspect --no-tags=true "docker://${image}" | jq -r '.Digest')
+  # shellcheck disable=SC2086
+  digest=$(skopeo inspect --no-tags=true ${SKOPEO_EXTRA_FLAGS} "docker://${image}" | jq -r '.Digest')
   if [ "${digest}" = "" ]; then
     echo ""
   fi