[APACHE] Add Apache CNF use case files

[demo.git] / tutorials / ApacheCNF / templates / cba / Scripts / kotlin / K8sHealthCheck.kt

diff --git a/tutorials/ApacheCNF/templates/cba/Scripts/kotlin/K8sHealthCheck.kt b/tutorials/ApacheCNF/templates/cba/Scripts/kotlin/K8sHealthCheck.kt
new file mode 100644 (file)
index 0000000..dd87c6f
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+++ b/tutorials/ApacheCNF/templates/cba/Scripts/kotlin/K8sHealthCheck.kt
@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2021 Samsung Electronics
+ * 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.services.execution.scripts
+
+import com.fasterxml.jackson.databind.node.ObjectNode
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.cancel
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.joinAll
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.runBlocking
+import org.onap.ccsdk.cds.blueprintsprocessor.core.BluePrintPropertiesService
+import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.ExecutionServiceInput
+import org.onap.ccsdk.cds.blueprintsprocessor.functions.k8s.K8sConnectionPluginConfiguration
+import org.onap.ccsdk.cds.blueprintsprocessor.functions.k8s.instance.K8sPluginInstanceApi
+import org.onap.ccsdk.cds.blueprintsprocessor.functions.k8s.instance.healthcheck.K8sRbInstanceHealthCheck
+import org.onap.ccsdk.cds.blueprintsprocessor.functions.k8s.instance.healthcheck.K8sRbInstanceHealthCheckSimple
+import org.onap.ccsdk.cds.blueprintsprocessor.services.execution.AbstractScriptComponentFunction
+import org.slf4j.LoggerFactory
+
+open class K8sHealthCheck : AbstractScriptComponentFunction() {
+
+    private val log = LoggerFactory.getLogger(K8sHealthCheck::class.java)!!
+
+    override fun getName(): String {
+        return "K8sHealthCheck"
+    }
+
+    private fun initPluginApi(): K8sPluginInstanceApi {
+        val bluePrintPropertiesService: BluePrintPropertiesService = this.functionDependencyInstanceAsType("bluePrintPropertiesService")!!
+        val k8sConfiguration = K8sConnectionPluginConfiguration(bluePrintPropertiesService)
+
+        return K8sPluginInstanceApi(k8sConfiguration)
+    }
+
+    override suspend fun processNB(executionRequest: ExecutionServiceInput) {
+        val instanceApi = initPluginApi()
+
+        log.info("Health check script execution - START")
+        val configValueSetup: ObjectNode = getDynamicProperties("config-deploy-setup") as ObjectNode
+        log.info("Config Value Setup: $configValueSetup")
+
+        val instanceHealthCheckList = startInstanceHealthCheck(configValueSetup, instanceApi)
+        val statuses = getStatuses(instanceHealthCheckList, instanceApi)
+        log.info("Health check script execution - END")
+    }
+
+    private fun startInstanceHealthCheck(configValueSetup: ObjectNode, instanceApi: K8sPluginInstanceApi): List<HealthCheckInstance> {
+        val healthCheckInstanceList = arrayListOf<HealthCheckInstance>()
+
+        configValueSetup.fields().forEach {
+            val instanceName = it.value.get("k8s-instance-id").asText()
+            val response: K8sRbInstanceHealthCheckSimple? = instanceApi.startInstanceHealthCheck(instanceName)
+            log.debug("K8sRbInstanceHealthCheckSimple response: $$response")
+            healthCheckInstanceList.add(HealthCheckInstance(instanceName, response?.id))
+        }
+        log.info("healthCheckInstanceList: $healthCheckInstanceList")
+
+        return healthCheckInstanceList
+    }
+
+    private fun getStatuses(instanceHealthCheckList: List<HealthCheckInstance>, instanceApi: K8sPluginInstanceApi): Map<String, String> {
+        val statuses = hashMapOf<String, String>()
+        runBlocking {
+            val jobs: List<Job> = instanceHealthCheckList.map {
+                launch {
+                    log.info("Thread started: ${Thread.currentThread().name} for $it")
+                    // WAIT APPROX 5 MINUTES
+                    repeat(30) { _ ->
+                        val response: K8sRbInstanceHealthCheck = instanceApi.getInstanceHealthCheck(it.heatStackId, it.healthCheckInstance!!)!!
+                        log.debug("Response for $it: $response")
+                        val status = response.status!!
+                        if (!"RUNNING".equals(status, true)) {
+                            statuses[it.heatStackId] = status
+                            log.info("Poll status: $status for $it")
+                            instanceApi.deleteInstanceHealthCheck(it.heatStackId, it.healthCheckInstance)
+                            cancel()
+                        }
+                        delay(10_000L)
+                    }
+                    statuses[it.heatStackId] = "Timeout"
+                    log.warn("Send delete hc request")
+                    instanceApi.deleteInstanceHealthCheck(it.heatStackId, it.healthCheckInstance!!)
+                }
+            }
+            jobs.joinAll()
+        }
+        var success = true
+        statuses?.forEach { it ->
+            if (it.value != "Succeeded") {
+                success = false
+            }
+        }
+        log.info("---")
+        if (success) {
+            log.info("Healthcheck finished successfully")
+        } else {
+            log.info("Healthcheck finished with failure")
+        }
+        log.info("Detailed results: $statuses")
+        log.info("---")
+        return statuses
+    }
+
+    data class HealthCheckInstance(val heatStackId: String, val healthCheckInstance: String?) {
+        override fun toString(): String {
+            return "HealthCheckInstance(heatStackId='$heatStackId', healthCheckInstance='$healthCheckInstance')"
+        }
+    }
+
+    override suspend fun recoverNB(runtimeException: RuntimeException, executionRequest: ExecutionServiceInput) {
+        log.info("Executing Recovery")
+        bluePrintRuntimeService.getBluePrintError().addError("${runtimeException.message}", getName())
+    }
+}