telco-ran: get alertmanager url from mcl annotation

Author: abraham2512

telco-core/configuration/reference-crs/optional/other/monitoring-config-cm.yaml

@@ -27,7 +27,7 @@ data:
           name: observability-alertmanager-accessor
         scheme: https
         staticConfigs:
-        - {{ if (lookup "v1" "Namespace" "" "open-cluster-management-addon-observability") }}{{ (regexFind "alertmanager-endpoint(.*)" ((fromSecret "open-cluster-management-addon-observability" "hub-info-secret" "hub-info.yaml") | base64dec)) | replace "alertmanager-endpoint: https://" "" }}{{ end }}
+        - {{ if (lookup "v1" "Namespace" "" "open-cluster-management-addon-observability") }}{{hub index (lookup "cluster.open-cluster-management.io/v1" "ManagedCluster" "" .ManagedClusterName).metadata.annotations "acm-alertmanager-route" hub}}{{ end }}
         tlsConfig:
           ca:
             key: service-ca.crt

telco-ran/configuration/kube-compare-reference/hack/default_value.yaml

@@ -331,7 +331,7 @@ cluster_tuning_monitoring_configuration_ReduceMonitoringFootprint:
   - metadata:
       name: cluster-monitoring-config
     captureGroup_defaults:
-      alertmanager_endpoint: '{{ `{{ if (lookup "v1" "Namespace" "" "open-cluster-management-addon-observability") }}{{ (regexFind "alertmanager-endpoint(.*)" ((fromSecret "open-cluster-management-addon-observability" "hub-info-secret" "hub-info.yaml") | base64dec)) | replace "alertmanager-endpoint: https://" "" }}{{ end }}` }}'
+      alertmanager_endpoint: '{{ `{{ if (lookup "v1" "Namespace" "" "open-cluster-management-addon-observability") }}{{hub index (lookup "cluster.open-cluster-management.io/v1" "ManagedCluster" "" .ManagedClusterName).metadata.annotations "acm-alertmanager-route" hub}}{{ end }}` }}'
       managed_cluster: '{{ `{{ fromClusterClaim "id.openshift.io" }}` }}'
 lca_LcaSubscription:
   - spec:

telco-ran/configuration/source-crs/cluster-tuning/monitoring-configuration/ReduceMonitoringFootprint.yaml

@@ -30,7 +30,7 @@ data:
           name: observability-alertmanager-accessor
         scheme: https
         staticConfigs:
-        - {{ if (lookup "v1" "Namespace" "" "open-cluster-management-addon-observability") }}{{ (regexFind "alertmanager-endpoint(.*)" ((fromSecret "open-cluster-management-addon-observability" "hub-info-secret" "hub-info.yaml") | base64dec)) | replace "alertmanager-endpoint: https://" "" }}{{ end }}
+        - {{ if (lookup "v1" "Namespace" "" "open-cluster-management-addon-observability") }}{{hub index (lookup "cluster.open-cluster-management.io/v1" "ManagedCluster" "" .ManagedClusterName).metadata.annotations "acm-alertmanager-route" hub}}{{ end }}
         tlsConfig:
           ca:
             key: service-ca.crt