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

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

diff --git a/kubernetes/sdnc/sdnc-prom/resources/bin/ensureSdncStandby.sh b/kubernetes/sdnc/sdnc-prom/resources/bin/ensureSdncStandby.sh
new file mode 100755 (executable)
index 0000000..8dd84bd
--- /dev/null
+++ b/kubernetes/sdnc/sdnc-prom/resources/bin/ensureSdncStandby.sh
@@ -0,0 +1,58 @@
+#!/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.
+
+debugLog(){
+  if [ "$enableDebugLogging" == true ]; then
+     if [ $# -eq 0 ]; then
+       echo "" >> $LOGFILE
+     else
+       echo $( date ) $@ >> $LOGFILE
+    fi
+  fi
+}
+
+LOGFILE="/app/geo.log"
+enableDebugLogging=true
+
+debugLog
+debugLog "Executing ensureSdncStandby"
+
+# query SDN-C cluster status
+debugLog "Started executing sdnc.cluster"
+clusterStatus=$( /app/bin/sdnc.cluster )
+debugLog "Completed executing sdnc.cluster. Cluster status is: $clusterStatus"
+
+if [ "active" = "$clusterStatus" ]; then
+  # assume transient error as other side transitions to ACTIVE
+  debugLog "Cluster status: $clusterStatus. exit 0"
+  exit 0
+
+elif [ "standby" = "$clusterStatus" ]; then
+  # check that standby cluster is healthy
+  debugLog "Started executing sdnc.monitor. Cluster status is: $clusterStatus"
+  health=$( /app/bin/sdnc.monitor )
+  debugLog "Completed executing sdnc.monitor. Cluster is: $health"
+  if [ "failure" = "$health" ];then
+    # Backup site is unhealthy - can't accept traffic!
+    exit 1
+  fi
+  # Cluster is standing by
+  exit 0
+fi
+
+debugLog "Unknown cluster status: $clusterStatus"
+# Unknown cluster status
+exit 1