SDN-C Multi-site High-availability - Auto-failover

[oom.git] / kubernetes / sdnc / sdnc-prom / resources / bin / sdnc.cluster

diff --git a/kubernetes/sdnc/sdnc-prom/resources/bin/sdnc.cluster b/kubernetes/sdnc/sdnc-prom/resources/bin/sdnc.cluster
new file mode 100755 (executable)
index 0000000..7660341
--- /dev/null
+++ b/kubernetes/sdnc/sdnc-prom/resources/bin/sdnc.cluster
@@ -0,0 +1,61 @@
+#!/bin/bash
+
+# Copyright © 2018 Amdocs
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# query ODL cluster state
+USERNAME="{{.Values.odl.jolokia.username}}"
+PASSWORD="{{.Values.odl.jolokia.password}}"
+
+count=${SDNC_ODL_COUNT:-1}
+memberStart=0
+if [ "${SDNC_IS_PRIMARY_CLUSTER:-true}" != "true" ];then
+  memberStart=$(( $memberStart + $count ))
+fi
+
+for instance in $(seq $count);do
+  shard=member-$(( $memberStart + $instance ))-shard-default-config
+  mbean=Category=Shards,name=$shard,type=DistributedConfigDatastore
+  url=http://{{.Release.Name}}-sdnc-$(( $instance-1 )).sdnc-cluster.{{.Release.Namespace}}:8181/jolokia/read/org.opendaylight.controller:$mbean
+
+  response=$( curl -s -u $USERNAME:$PASSWORD $url )
+  rc=$?
+  if [ $rc -ne 0 ];then
+    # failed to contact SDN-C instance - try another
+    continue
+  fi
+  status=$( echo -E "$response" | jq -r ".status" )
+  if [ "$status" != "200" ];then
+    # query failed, try another instance
+    continue
+  fi
+
+  voting=$( echo -E "$response" | jq -r ".value.Voting" )
+  case $voting in
+  true)
+    echo "active"
+    exit 0
+    ;;
+  false)
+    echo "standby"
+    exit 0
+    ;;
+  *)
+    echo "Error: Voting status could not be determined."
+    exit 1
+    ;;
+  esac
+done
+echo "Error: Voting status could not be determined."
+exit 1