diff --git a/files/koji_build_tag-docker.json b/files/koji_build_tag-docker.json
new file mode 100644
index 0000000..a5d8524
--- /dev/null
+++ b/files/koji_build_tag-docker.json
@@ -0,0 +1,5 @@
+{
+  "inferit-8_10-*": {"docker_image_name": "msvsphere810-systemd-tests", "os_name": "MSVSphere 8.10"},
+  "inferit-9_4-extras-build": {"docker_image_name": "msvsphere94-systemd-tests", "os_name": "MSVSphere 9.4"},
+  "inferit-9_4-*": {"docker_image_name": "msvsphere94-systemd-tests", "os_name": "MSVSphere 9.4"}
+}
diff --git a/files/koji_modular_tag-docker.json b/files/koji_modular_tag-docker.json
new file mode 100644
index 0000000..abdb206
--- /dev/null
+++ b/files/koji_modular_tag-docker.json
@@ -0,0 +1,5 @@
+{
+  "80900": {"docker_image_name": "msvsphere89-systemd-tests", "os_name": "MSVSphere 8.9"},
+  "81000": {"docker_image_name": "msvsphere810-systemd-tests", "os_name": "MSVSphere 8.10"},
+  "90400": {"docker_image_name": "msvsphere94-systemd-tests", "os_name": "MSVSphere 9.4"}
+}