Replace prometheus host and port by URL and infer it from OSM_HOSTNAME

Change-Id: Iff647f8c61ad3891ff995f4d458ce93e0a0d9ac6
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/robot-systest/lib/sdnc_lib.resource b/robot-systest/lib/sdnc_lib.resource
index c9cd8c7..3f04e53 100644
--- a/robot-systest/lib/sdnc_lib.resource
+++ b/robot-systest/lib/sdnc_lib.resource
@@ -79,8 +79,8 @@
 
 Check For SDNC Status
     [Documentation]   Check in a loop if the value of the metric osm_sdnc_status in Prometheus for the SDN controller is 1 (reachable).
-    [Arguments]   ${sdnc_id}   ${prometheus_host}   ${prometheus_port}   ${prometheus_user}   ${prometheus_password}
-    Wait Until Keyword Succeeds   ${SDNC_STATUS_MAX_WAIT_TIME}   ${SDNC_STATUS_POL_TIME}   Check If SDNC Is Available   ${sdnc_id}   ${prometheus_host}   ${prometheus_port}   ${prometheus_user}   ${prometheus_password}
+    [Arguments]   ${sdnc_id}   ${prometheus_url}   ${prometheus_user}   ${prometheus_password}
+    Wait Until Keyword Succeeds   ${SDNC_STATUS_MAX_WAIT_TIME}   ${SDNC_STATUS_POL_TIME}   Check If SDNC Is Available   ${sdnc_id}   ${prometheus_url}   ${prometheus_user}   ${prometheus_password}
 
 Get SDNC ID
     [Documentation]   Check if an SDN controller identified by name exists in OSM, and return the id.
@@ -92,6 +92,6 @@
 
 Check If SDNC Is Available
     [Documentation]   Check if the value of the metric osm_sdnc_status in Prometheus for the SDN controller is 1 (reachable).
-    [Arguments]   ${sdnc_id}   ${prometheus_host}   ${prometheus_port}   ${prometheus_user}   ${prometheus_password}
-    ${metric}=   Get Metric   ${prometheus_host}   ${prometheus_port}   ${prometheus_user}   ${prometheus_password}   osm_sdnc_status   sdnc_id=${sdnc_id}
+    [Arguments]   ${sdnc_id}   ${prometheus_url}   ${prometheus_user}   ${prometheus_password}
+    ${metric}=   Get Metric   ${prometheus_url}   ${prometheus_user}   ${prometheus_password}   osm_sdnc_status   sdnc_id=${sdnc_id}
     Should Be Equal As Integers   ${metric}   1   msg=SDNC '${sdnc_id}' is not active   values=false