Add osmclient sidecar

Change-Id: I4b2cbf47c9e19a0d8340d1f7b48e7be5015547f9
Signed-off-by: Mike Marchetti <mmarchetti@sandvine.com>
diff --git a/installers/docker/osm_elk/docker-compose.yml b/installers/docker/osm_elk/docker-compose.yml
index 222a1d0..c74eb67 100644
--- a/installers/docker/osm_elk/docker-compose.yml
+++ b/installers/docker/osm_elk/docker-compose.yml
@@ -37,4 +37,4 @@
 networks:
   elk:
     external:
-      name: netOSM
+      name: ${OSM_NETWORK:-netOSM}