feat: Add Cloud Run Jobs support

google-cloud-logging/src/main/java/com/google/cloud/logging/MetadataLoader.java

@@ -40,6 +40,10 @@ public final class MetadataLoader {
           .put(Label.FunctionName, this::getFunctionName)
           .put(Label.InstanceId, this::getInstanceId)
           .put(Label.InstanceName, this::getInstanceName)
+          .put(Label.CloudRunJobName, this::getCloudRunJobName)
+          .put(Label.CloudRunJobExecutionName, this::getCloudRunJobExecutionName)
+          .put(Label.CloudRunJobTaskIndex, this::getCloudRunJobTaskIndex)
+          .put(Label.CloudRunJobTaskAttempt, this::getCloudRunJobTaskAttempt)
           .put(Label.CloudRunLocation, this::getCloudRunLocation)
           .put(Label.GKELocation, this::getGKELocation)
           .put(Label.ModuleId, this::getModuleId)
@@ -84,6 +88,7 @@ private String getConfigName() {
   private String getContainerName() {
     return getter.getEnv("CONTAINER_NAME");
   }
+
   /**
    * Distinguish between Standard and Flexible GAE environments. There is no indicator of the
    * environment. The path to the startup-script in the metadata attribute was selected as one of
@@ -121,6 +126,22 @@ private String getInstanceName() {
     return getter.getAttribute("instance/name");
   }
 
+  private String getCloudRunJobName() {
+    return getter.getEnv("CLOUD_RUN_JOB");
+  }
+
+  private String getCloudRunJobExecutionName() {
+    return getter.getEnv("CLOUD_RUN_EXECUTION");
+  }
+
+  private String getCloudRunJobTaskIndex() {
+    return getter.getEnv("CLOUD_RUN_TASK_INDEX");
+  }
+
+  private String getCloudRunJobTaskAttempt() {
+    return getter.getEnv("CLOUD_RUN_TASK_ATTEMPT");
+  }
+
   private String getCloudRunLocation() {
     return getRegion();
   }
@@ -132,6 +153,7 @@ private String getGKELocation() {
   private String getModuleId() {
     return getter.getEnv("GAE_SERVICE");
   }
+
   /**
    * Heuristic to discover the namespace name of the current environment. There is no deterministic
    * way to discover the namespace name of the process. The name is read from the {@link
@@ -155,6 +177,7 @@ private String getNamespaceName() {
     }
     return value;
   }
+
   // Kubernetes set hostname of the pod to the pod name by default, however hostname can be override
   // in manifest
   // allow users to provide the container name via environment variable
@@ -169,6 +192,7 @@ private String getPodName() {
   private String getProjectId() {
     return getter.getAttribute("project/project-id");
   }
+
   /**
    * Retrieves a region from the qualified region of 'projects/[PROJECT_NUMBER]/regions/[REGION]'
    *
@@ -193,6 +217,7 @@ private String getServiceName() {
   private String getVersionId() {
     return getter.getEnv("GAE_VERSION");
   }
+
   /**
    * Retrieves a zone from the qualified zone of 'projects/[PROJECT_NUMBER]/zones/[ZONE]'
    *

google-cloud-logging/src/main/java/com/google/cloud/logging/MonitoredResourceUtil.java

@@ -32,6 +32,7 @@
 public class MonitoredResourceUtil {
 
   private static final String APPENGINE_LABEL_PREFIX = "appengine.googleapis.com/";
+  private static final String CLOUD_RUN_JOB_LABEL_PREFIX = "run.googleapis.com/";
   protected static final String PORJECTID_LABEL = Label.ProjectId.getKey();
 
   protected enum Label {
@@ -42,6 +43,10 @@ protected enum Label {
     FunctionName("function_name"),
     InstanceId("instance_id"),
     InstanceName("instance_name"),
+    CloudRunJobName("job_name"),
+    CloudRunJobExecutionName("execution_name"),
+    CloudRunJobTaskIndex("task_index"),
+    CloudRunJobTaskAttempt("task_attempt"),
     CloudRunLocation("location"),
     GKELocation("location"),
     ModuleId("module_id"),
@@ -67,6 +72,7 @@ String getKey() {
 
   private enum Resource {
     CLOUD_RUN("cloud_run_revision"),
+    CLOUD_RUN_JOB("cloud_run_job"),
     CLOUD_FUNCTION("cloud_function"),
     APP_ENGINE("gae_app"),
     GCE_INSTANCE("gce_instance"),
@@ -93,6 +99,7 @@ String getKey() {
               Label.ServiceName,
               Label.CloudRunLocation,
               Label.ConfigurationName)
+          .putAll(Resource.CLOUD_RUN_JOB.getKey(), Label.CloudRunJobName, Label.CloudRunLocation)
           .putAll(
               Resource.APP_ENGINE.getKey(), Label.ModuleId, Label.VersionId, Label.Zone, Label.Env)
           .putAll(Resource.GCE_INSTANCE.getKey(), Label.InstanceId, Label.Zone)
@@ -177,6 +184,12 @@ private static Resource detectResourceType() {
         && getter.getEnv("K_CONFIGURATION") != null) {
       return Resource.CLOUD_RUN;
     }
+    if (getter.getEnv("CLOUD_RUN_JOB") != null
+        && getter.getEnv("CLOUD_RUN_EXECUTION") != null
+        && getter.getEnv("CLOUD_RUN_TASK_INDEX") != null
+        && getter.getEnv("CLOUD_RUN_TASK_ATTEMPT") != null) {
+      return Resource.CLOUD_RUN_JOB;
+    }
     if (getter.getEnv("GAE_INSTANCE") != null
         && getter.getEnv("GAE_SERVICE") != null
         && getter.getEnv("GAE_VERSION") != null) {
@@ -212,6 +225,14 @@ private static List<LoggingEnhancer> createEnhancers(Resource resourceType) {
         enhancers.add(
             new LabelLoggingEnhancer(APPENGINE_LABEL_PREFIX, ImmutableList.of(Label.InstanceName)));
       }
+    } else if (resourceType == Resource.CLOUD_RUN_JOB) {
+      enhancers.add(
+          new LabelLoggingEnhancer(
+              CLOUD_RUN_JOB_LABEL_PREFIX,
+              ImmutableList.of(
+                  Label.CloudRunJobExecutionName,
+                  Label.CloudRunJobTaskIndex,
+                  Label.CloudRunJobTaskAttempt)));
     }
     return enhancers;
   }

google-cloud-logging/src/test/java/com/google/cloud/logging/MonitoredResourceUtilTest.java

@@ -286,4 +286,32 @@ public void testResourceTypeCloudRun() {
     assertEquals("cloud_run_revision", response.getType());
     assertEquals(expectedLabels, response.getLabels());
   }
+
+  @Test
+  public void testResourceTypeCloudRunJob() {
+    final String mockedJobName = "mocked-job-name";
+    final ImmutableMap<String, String> expectedLabels =
+        ImmutableMap.of(
+            "project_id",
+            MonitoredResourceUtilTest.MOCKED_PROJECT_ID,
+            "job_name",
+            mockedJobName,
+            "location",
+            MOCKED_REGION);
+
+    // setup
+    expect(getterMock.getAttribute("instance/region")).andReturn(MOCKED_QUALIFIED_REGION).once();
+    expect(getterMock.getAttribute(anyString())).andReturn(null).anyTimes();
+    expect(getterMock.getEnv("CLOUD_RUN_JOB")).andReturn(mockedJobName).times(2);
+    expect(getterMock.getEnv("CLOUD_RUN_EXECUTION")).andReturn(mockedJobName + "_1").times(1);
+    expect(getterMock.getEnv("CLOUD_RUN_TASK_INDEX")).andReturn("0").times(1);
+    expect(getterMock.getEnv("CLOUD_RUN_TASK_ATTEMPT")).andReturn("0").times(1);
+    expect(getterMock.getEnv(anyString())).andReturn(null).anyTimes();
+    replay(getterMock);
+    // exercise
+    MonitoredResource response = MonitoredResourceUtil.getResource("", "");
+    // verify
+    assertEquals("cloud_run_job", response.getType());
+    assertEquals(expectedLabels, response.getLabels());
+  }
 }