k8s: add logging for config export

Author: pinheadmz

src/backends/kubernetes/kubernetes_backend.py

@@ -765,6 +765,7 @@ def write_service_config(self, service_name: str, tar_buffer: IO[bytes], destina
         pod_name = obj["container_name_suffix"]
         container_name = "sidecar"
         # Write the archive
+        self.log.info(f"Writing {len(tar_buffer.getbuffer())} bytes to {destination_path} for {service_name}")
         resp = stream(
             self.client.connect_get_namespaced_pod_exec,
             pod_name,
@@ -779,6 +780,7 @@ def write_service_config(self, service_name: str, tar_buffer: IO[bytes], destina
         )
         resp.write_stdin(tar_buffer.getvalue())
         resp.close()
+        self.log.info(f"Finished writing tarball for {service_name}, unpacking...")
         # Unpack the archive
         stream(
             self.client.connect_get_namespaced_pod_exec,
@@ -792,3 +794,4 @@ def write_service_config(self, service_name: str, tar_buffer: IO[bytes], destina
             tty=False,
             _preload_content=False
         )
+        self.log.info(f"Finished unpacking config data for {service_name} to {destination_path}")