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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2021-2022 Nordix Foundation.
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.clamp.acm.participant.kubernetes.handler;
import java.io.IOException;
import java.lang.invoke.MethodHandles;
import java.time.Instant;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import lombok.AccessLevel;
import lombok.Getter;
import lombok.Setter;
import org.onap.policy.clamp.acm.participant.intermediary.api.AutomationCompositionElementListener;
import org.onap.policy.clamp.acm.participant.intermediary.api.ParticipantIntermediaryApi;
import org.onap.policy.clamp.acm.participant.kubernetes.exception.ServiceException;
import org.onap.policy.clamp.acm.participant.kubernetes.helm.PodStatusValidator;
import org.onap.policy.clamp.acm.participant.kubernetes.models.ChartInfo;
import org.onap.policy.clamp.acm.participant.kubernetes.service.ChartService;
import org.onap.policy.clamp.models.acm.concepts.AcElementStatistics;
import org.onap.policy.clamp.models.acm.concepts.AutomationCompositionElement;
import org.onap.policy.clamp.models.acm.concepts.AutomationCompositionOrderedState;
import org.onap.policy.clamp.models.acm.concepts.AutomationCompositionState;
import org.onap.policy.clamp.models.acm.messages.dmaap.participant.ParticipantMessageType;
import org.onap.policy.common.utils.coder.Coder;
import org.onap.policy.common.utils.coder.CoderException;
import org.onap.policy.common.utils.coder.StandardCoder;
import org.onap.policy.models.base.PfModelException;
import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
import org.onap.policy.models.tosca.authorative.concepts.ToscaNodeTemplate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
/**
* This class handles implementation of automationCompositionElement updates.
*/
@Component
public class AutomationCompositionElementHandler implements AutomationCompositionElementListener {
private static final Logger LOGGER = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
private ExecutorService executor = Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors());
// Map of helm installation and the status of corresponding pods
@Getter
private static Map<String, Map<String, String>> podStatusMap = new ConcurrentHashMap<>();
private static final Coder CODER = new StandardCoder();
@Autowired
private ChartService chartService;
@Setter
private ParticipantIntermediaryApi intermediaryApi;
// Map of acElement Id and installed Helm charts
@Getter(AccessLevel.PACKAGE)
private final Map<UUID, ChartInfo> chartMap = new HashMap<>();
// Default thread config values
private static class ThreadConfig {
private int uninitializedToPassiveTimeout = 60;
private int podStatusCheckInterval = 30;
}
/**
* Callback method to handle a automation composition element state change.
*
* @param automationCompositionElementId the ID of the automation composition element
* @param currentState the current state of the automation composition element
* @param newState the state to which the automation composition element is changing to
*/
@Override
public synchronized void automationCompositionElementStateChange(ToscaConceptIdentifier automationCompositionId,
UUID automationCompositionElementId, AutomationCompositionState currentState,
AutomationCompositionOrderedState newState) {
switch (newState) {
case UNINITIALISED:
ChartInfo chart = chartMap.get(automationCompositionElementId);
if (chart != null) {
LOGGER.info("Helm deployment to be deleted {} ", chart.getReleaseName());
try {
chartService.uninstallChart(chart);
intermediaryApi.updateAutomationCompositionElementState(automationCompositionId,
automationCompositionElementId, newState, AutomationCompositionState.UNINITIALISED,
ParticipantMessageType.AUTOMATION_COMPOSITION_STATE_CHANGE);
chartMap.remove(automationCompositionElementId);
podStatusMap.remove(chart.getReleaseName());
} catch (ServiceException se) {
LOGGER.warn("Deletion of Helm deployment failed", se);
}
}
break;
case PASSIVE:
intermediaryApi.updateAutomationCompositionElementState(automationCompositionId,
automationCompositionElementId, newState, AutomationCompositionState.PASSIVE,
ParticipantMessageType.AUTOMATION_COMPOSITION_STATE_CHANGE);
break;
case RUNNING:
intermediaryApi.updateAutomationCompositionElementState(automationCompositionId,
automationCompositionElementId, newState, AutomationCompositionState.RUNNING,
ParticipantMessageType.AUTOMATION_COMPOSITION_STATE_CHANGE);
break;
default:
LOGGER.warn("Cannot transition from state {} to state {}", currentState, newState);
break;
}
}
/**
* Callback method to handle an update on a automation composition element.
*
* @param element the information on the automation composition element
* @param nodeTemplate toscaNodeTemplate
* @throws PfModelException in case of an exception
*/
@Override
public synchronized void automationCompositionElementUpdate(ToscaConceptIdentifier automationCompositionId,
AutomationCompositionElement element, ToscaNodeTemplate nodeTemplate) throws PfModelException {
@SuppressWarnings("unchecked")
Map<String, Object> chartData = (Map<String, Object>) nodeTemplate.getProperties().get("chart");
LOGGER.info("Installation request received for the Helm Chart {} ", chartData);
try {
var chartInfo = CODER.convert(chartData, ChartInfo.class);
if (chartService.installChart(chartInfo)) {
chartMap.put(element.getId(), chartInfo);
var config = CODER.convert(nodeTemplate.getProperties(),
ThreadConfig.class);
checkPodStatus(automationCompositionId, element.getId(), chartInfo,
config.uninitializedToPassiveTimeout, config.podStatusCheckInterval);
}
} catch (ServiceException | CoderException | IOException | ExecutionException
| InterruptedException e) {
LOGGER.warn("Installation of Helm chart failed", e);
}
}
/**
* Invoke a new thread to check the status of deployed pods.
*
* @param chart ChartInfo
*/
public void checkPodStatus(ToscaConceptIdentifier controlLoopId, UUID elementId,
ChartInfo chart, int timeout, int podStatusCheckInterval) throws ExecutionException, InterruptedException {
// Invoke runnable thread to check pod status
Future<String> result = executor.submit(new PodStatusValidator(chart, timeout,
podStatusCheckInterval), "Done");
if (!result.get().isEmpty()) {
LOGGER.info("Pod Status Validator Completed: {}", result.isDone());
intermediaryApi.updateAutomationCompositionElementState(controlLoopId, elementId,
AutomationCompositionOrderedState.PASSIVE, AutomationCompositionState.PASSIVE,
ParticipantMessageType.AUTOMATION_COMPOSITION_STATE_CHANGE);
}
}
/**
* Overridden method.
*
* @param automationCompositionElementId automationCompositionElement id
* @throws PfModelException in case of error
*/
@Override
public synchronized void handleStatistics(UUID automationCompositionElementId) throws PfModelException {
var acElement = intermediaryApi.getAutomationCompositionElement(automationCompositionElementId);
if (acElement != null) {
var acElementStatistics = new AcElementStatistics();
acElementStatistics.setState(acElement.getState());
acElementStatistics.setTimeStamp(Instant.now());
intermediaryApi.updateAutomationCompositionElementStatistics(automationCompositionElementId,
acElementStatistics);
}
}
}
|
