2 * ========================LICENSE_START=================================
3 * Copyright (C) 2021 Nordix Foundation. All rights reserved.
4 * ======================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 * ========================LICENSE_END===================================
19 package org.onap.policy.clamp.acm.participant.kubernetes.helm;
21 import java.io.BufferedReader;
22 import java.io.IOException;
23 import java.io.InputStreamReader;
24 import java.lang.invoke.MethodHandles;
25 import java.nio.charset.StandardCharsets;
26 import java.util.HashMap;
28 import lombok.SneakyThrows;
29 import org.apache.commons.io.IOUtils;
30 import org.onap.policy.clamp.acm.participant.kubernetes.exception.ServiceException;
31 import org.onap.policy.clamp.acm.participant.kubernetes.handler.AutomationCompositionElementHandler;
32 import org.onap.policy.clamp.acm.participant.kubernetes.models.ChartInfo;
33 import org.slf4j.Logger;
34 import org.slf4j.LoggerFactory;
37 public class PodStatusValidator implements Runnable {
39 private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
41 private final int statusCheckInterval;
43 //Timeout for the thread to exit.
44 private final int timeout;
46 private ChartInfo chart;
49 * Constructor for PodStatusValidator.
50 * @param chart chartInfo
51 * @param timeout timeout for the thread to exit
52 * @param statusCheckInterval Interval to check pod status
54 public PodStatusValidator(ChartInfo chart, int timeout, int statusCheckInterval) {
56 this.timeout = timeout;
57 this.statusCheckInterval = statusCheckInterval;
64 logger.info("Polling the status of deployed pods for the chart {}", chart.getChartId().getName());
65 Map<String, String> podStatusMap;
67 var isVerified = false;
68 long endTime = System.currentTimeMillis() + (timeout * 1000L);
70 while (!isVerified && System.currentTimeMillis() < endTime) {
72 output = HelmClient.executeCommand(verifyPodStatusCommand(chart));
73 podStatusMap = mapPodStatus(output);
74 isVerified = podStatusMap.values()
76 .allMatch("Running"::equals);
78 logger.info("Waiting for the pods to be active for the chart {}", chart.getChartId().getName());
79 podStatusMap.forEach((key, value) -> logger.info("Pod: {} , state: {}", key, value));
80 AutomationCompositionElementHandler.getPodStatusMap().put(chart.getReleaseName(), podStatusMap);
81 // Recheck status of pods in specific intervals.
82 Thread.sleep(statusCheckInterval * 1000L);
84 logger.info("All pods are in running state for the helm chart {}", chart.getChartId().getName());
85 AutomationCompositionElementHandler.getPodStatusMap().put(chart.getReleaseName(), podStatusMap);
87 } catch (ServiceException | IOException e) {
88 throw new ServiceException("Error verifying the status of the pod. Exiting", e);
93 private ProcessBuilder verifyPodStatusCommand(ChartInfo chart) {
94 String cmd = "kubectl get pods --namespace " + chart.getNamespace() + " | grep "
95 + chart.getChartId().getName();
96 return new ProcessBuilder("sh", "-c", cmd);
100 private Map<String, String> mapPodStatus(String output) throws IOException, ServiceException {
101 Map<String, String> podStatusMap = new HashMap<>();
102 try (var reader = new BufferedReader(new InputStreamReader(IOUtils.toInputStream(output,
103 StandardCharsets.UTF_8)))) {
104 var line = reader.readLine();
105 while (line != null) {
106 if (line.contains(chart.getChartId().getName())) {
107 var result = line.split("\\s+");
108 podStatusMap.put(result[0], result[2]);
110 line = reader.readLine();
113 if (!podStatusMap.isEmpty()) {
116 throw new ServiceException("Status of Pod is empty");