aboutsummaryrefslogtreecommitdiffstats
path: root/ms/blueprintsprocessor/application/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/BluePrintProcessorCluster.kt
diff options
context:
space:
mode:
Diffstat (limited to 'ms/blueprintsprocessor/application/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/BluePrintProcessorCluster.kt')
-rw-r--r--ms/blueprintsprocessor/application/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/BluePrintProcessorCluster.kt87
1 files changed, 87 insertions, 0 deletions
diff --git a/ms/blueprintsprocessor/application/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/BluePrintProcessorCluster.kt b/ms/blueprintsprocessor/application/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/BluePrintProcessorCluster.kt
new file mode 100644
index 000000000..513bd5135
--- /dev/null
+++ b/ms/blueprintsprocessor/application/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/BluePrintProcessorCluster.kt
@@ -0,0 +1,87 @@
+/*
+ * Copyright © 2018-2019 AT&T Intellectual Property.
+ *
+ * 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.
+ */
+
+package org.onap.ccsdk.cds.blueprintsprocessor
+
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.launch
+import org.onap.ccsdk.cds.blueprintsprocessor.core.service.BluePrintClusterService
+import org.onap.ccsdk.cds.blueprintsprocessor.core.service.ClusterInfo
+import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintConstants
+import org.onap.ccsdk.cds.controllerblueprints.core.logger
+import org.onap.ccsdk.cds.controllerblueprints.core.utils.ClusterUtils
+import org.springframework.boot.context.event.ApplicationReadyEvent
+import org.springframework.context.event.EventListener
+import org.springframework.stereotype.Component
+import java.util.Properties
+
+/**
+ * To Start the cluster, minimum 2 Instances/ Replicas od CDS needed.
+ * All instance such as Blueprintprocessor, ResourceResolution, MessagePrioritization should be in
+ * same cluster and should have same cluster name.
+ *
+ * Data can be shared only between the clusters, outside the cluster data can't be shared.
+ * If cds-controller-x instance wants to share data with resource-resolution-x instance, then it should be in the
+ * same cluster.(cds-cluster) and same network (cds-network)
+ *
+ * Assumptions:
+ * 1. Container, Pod and Host names are same.
+ * 2. Container names should end with sequence number.
+ * Blueprintprocessor example be : cds-controller-1, cds-controller-2, cds-controller-3
+ * ResourceResolution example be : resource-resolution-1, resource-resolution-2, resource-resolution-3
+ * 3. Each contained, should have environment properties CLUSTER_ID, CLUSTER_NODE_ID, CLUSTER_JOIN_AS_CLIENT,
+ * CLUSTER_CONFIG_FILE
+ * Example values :
+ * CLUSTER_ID: cds-cluster
+ * CLUSTER_NODE_ID: cds-controller-2
+ * CLUSTER_JOIN_AS_CLIENT: "true" or "false"
+ * CLUSTER_CONFIG_FILE: <Config location>
+ * 4. Cluster will be enabled only all the above properties present in the environments.
+ * if CLUSTER_ENABLED is present, then it will try to create cluster.
+ */
+@Component
+open class BluePrintProcessorCluster(private val bluePrintClusterService: BluePrintClusterService) {
+
+ private val log = logger(BluePrintProcessorCluster::class)
+
+ @EventListener(ApplicationReadyEvent::class)
+ fun startAndJoinCluster() = GlobalScope.launch {
+
+ if (BluePrintConstants.CLUSTER_ENABLED) {
+
+ val clusterId = ClusterUtils.clusterId()
+ val nodeId = ClusterUtils.clusterNodeId()
+
+ val joinAsClient =
+ (System.getenv(BluePrintConstants.PROPERTY_CLUSTER_JOIN_AS_CLIENT) ?: "false").toBoolean()
+
+ val clusterConfigFile = System.getenv(BluePrintConstants.PROPERTY_CLUSTER_CONFIG_FILE)
+
+ val properties = Properties()
+ properties["hazelcast.logging.type"] = "slf4j"
+
+ val clusterInfo = ClusterInfo(
+ id = clusterId, nodeId = nodeId,
+ joinAsClient = joinAsClient,
+ configFile = clusterConfigFile,
+ properties = properties
+ )
+ bluePrintClusterService.startCluster(clusterInfo)
+ } else {
+ log.info("Cluster is disabled, to enable cluster set the environment CLUSTER_* properties.")
+ }
+ }
+}