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79 changes: 79 additions & 0 deletions
79
operator/controller/src/test/java/io/apicurio/registry/operator/it/PodLogManager.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| package io.apicurio.registry.operator.it; | ||
|
|
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| import io.fabric8.kubernetes.client.KubernetesClient; | ||
| import io.fabric8.kubernetes.client.dsl.LogWatch; | ||
| import io.javaoperatorsdk.operator.processing.event.ResourceID; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
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| import java.io.BufferedReader; | ||
| import java.io.InputStreamReader; | ||
| import java.time.Duration; | ||
| import java.time.Instant; | ||
| import java.util.Map; | ||
| import java.util.concurrent.ConcurrentHashMap; | ||
| import java.util.concurrent.atomic.AtomicBoolean; | ||
|
|
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| import static java.util.concurrent.TimeUnit.SECONDS; | ||
| import static org.awaitility.Awaitility.await; | ||
|
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| public class PodLogManager { | ||
|
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| private static final Logger log = LoggerFactory.getLogger(PodLogManager.class); | ||
|
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| private final KubernetesClient k8sClient; | ||
|
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| private final Map<ResourceID, AtomicBoolean> activePodLogMap = new ConcurrentHashMap<>(); | ||
|
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| public PodLogManager(KubernetesClient k8sClient) { | ||
| this.k8sClient = k8sClient; | ||
| } | ||
|
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| private String getNamespace(ResourceID id) { | ||
| return id.getNamespace().orElse("default"); | ||
| } | ||
|
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| public void startPodLog(ResourceID podID) { | ||
| k8sClient.pods().inNamespace(getNamespace(podID)).withName(podID.getName()).waitUntilReady(60, | ||
| SECONDS); | ||
| new Thread(() -> { | ||
| StringBuilder chunk = new StringBuilder(); | ||
| try ( | ||
| LogWatch logWatch = k8sClient.pods().inNamespace(getNamespace(podID)).withName(podID.getName()).watchLog(); | ||
| BufferedReader reader = new BufferedReader(new InputStreamReader(logWatch.getOutput())) | ||
| ) { | ||
| AtomicBoolean stop = new AtomicBoolean(false); | ||
| log.debug("START LOG of pod {}/{}", getNamespace(podID), podID.getName()); | ||
| activePodLogMap.put(podID, stop); | ||
| var lastWriteAt = Instant.now(); | ||
| while (!stop.get()) { | ||
| var line = reader.readLine(); | ||
| if (line != null) { | ||
| chunk.append(getNamespace(podID)).append("/").append(podID.getName()).append(" >>> ") | ||
| .append(line).append("\n"); | ||
| if (lastWriteAt.plus(Duration.ofSeconds(5)).isBefore(Instant.now())) { | ||
| log.debug("LOG of pod {}/{}:\n{}", getNamespace(podID), podID.getName(), chunk); | ||
| chunk.setLength(0); | ||
| lastWriteAt = Instant.now(); | ||
| } | ||
| } else { | ||
| stop.set(true); | ||
| } | ||
| } | ||
| } catch (Exception ex) { | ||
| log.error("Error while reading logs of pod {}/{}", getNamespace(podID), podID.getName(), ex); | ||
| } finally { | ||
| if (chunk.length() > 0) { | ||
| log.debug("LOG of pod {}/{}:\n{}", getNamespace(podID), podID.getName(), chunk); | ||
| } | ||
| log.debug("END LOG of pod {}/{}", getNamespace(podID), podID.getName()); | ||
| activePodLogMap.remove(podID); | ||
| } | ||
| }).start(); | ||
| } | ||
|
|
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| public void stopAndWait() { | ||
| activePodLogMap.values().forEach(stop -> stop.set(true)); | ||
| await().until(activePodLogMap::isEmpty); | ||
| } | ||
| } |