Automation to add the 'spec.replaces' annotation (#1748)

This allows to have an update graph in Openshift Marketplace Operator updates

Signed-off-by: pjuarezd <pjuarezd@users.noreply.github.com>

olm.sh

@@ -70,6 +70,14 @@ for catalog in "${redhatCatalogs[@]}"; do
   yq -i ".spec.install.spec.deployments[0].spec.template.spec.containers[0].image |= (\"${operatorImageDigest}\")" bundles/$catalog/$RELEASE/manifests/$package.clusterserviceversion.yaml
   yq -i ".spec.install.spec.deployments[1].spec.template.spec.containers[0].image |= (\"${operatorImageDigest}\")" bundles/$catalog/$RELEASE/manifests/$package.clusterserviceversion.yaml
 
+  # To provide channel for upgrade where we tell what versions can be replaced by the new version we offer
+  # You can read the documentation at link below:
+  # https://access.redhat.com/documentation/en-us/openshift_container_platform/4.2/html/operators/understanding-the-operator-lifecycle-manager-olm#olm-upgrades_olm-understanding-olm
+  echo "To provide replacement for upgrading Operator..."
+  PREV_VERSION=$(curl -s "https://catalog.redhat.com/api/containers/v1/operators/bundles?channel_name=stable&package=${package}&organization=${catalog}&include=data.version,data.csv_name,data.ocp_version" | jq '.data | max_by(.version).csv_name' -r)
+  echo "replaces: $PREV_VERSION"
+  yq -i e ".spec.replaces |= \"${PREV_VERSION}\"" bundles/$catalog/$RELEASE/manifests/$package.clusterserviceversion.yaml
+
   # Now promote the latest release to the root of the repository
   rm -Rf manifests
   rm -Rf metadata