Prepare installer files, Jenkins and workflow templates for Release EIGHTEEN

Change-Id: Idb95cf6b4b076feea34e12b1b190884edcd9d8b6
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/installers/10-install-client-tools.sh b/installers/10-install-client-tools.sh
index 5a02e70..16fad53 100755
--- a/installers/10-install-client-tools.sh
+++ b/installers/10-install-client-tools.sh
@@ -130,8 +130,8 @@
 echo "yq installed"
 
 # OSM client
-OSM_CLIENT_VERSION=${OSM_CLIENT_VERSION:-"master"}
-OSM_IM_VERSION=${OSM_IM_VERSION:-"master"}
+OSM_CLIENT_VERSION=${OSM_CLIENT_VERSION:-"v18.0"}
+OSM_IM_VERSION=${OSM_IM_VERSION:-"v18.0"}
 sudo DEBIAN_FRONTEND=noninteractive apt-get install -y python3 python3-setuptools python3-dev python3-pip
 sudo DEBIAN_FRONTEND=noninteractive apt-get install -y libmagic1
 sudo DEBIAN_FRONTEND=noninteractive apt-get install -y make