DT-1202: Add "inherit steward" support to snapshot creation

src/main/java/bio/terra/service/auth/iam/IamProviderInterface.java

@@ -125,11 +125,15 @@ Map<IamRole, String> createDatasetResource(
    *
    * @param userReq authenticated user
    * @param snapshotId id of the snapshot
+   * @param parentDatasetId id of the parent dataset of the snapshot
    * @param policies user emails to add as snapshot policy members
    * @return Map of policy group emails for the snapshot policies
    */
   Map<IamRole, String> createSnapshotResource(
-      AuthenticatedUserRequest userReq, UUID snapshotId, SnapshotRequestModelPolicies policies)
+      AuthenticatedUserRequest userReq,
+      UUID snapshotId,
+      UUID parentDatasetId,
+      SnapshotRequestModelPolicies policies)
       throws InterruptedException;
 
   /**

src/main/java/bio/terra/service/auth/iam/IamService.java

@@ -285,12 +285,17 @@ public void deleteSnapshotResource(AuthenticatedUserRequest userReq, UUID snapsh
    *
    * @param userReq authenticated user
    * @param snapshotId id of the snapshot
+   * @param parentDatasetId id of the snapshot's parent dataset
    * @param policies user emails to add as snapshot policy members
    * @return Map of policy group emails for the snapshot policies
    */
   public Map<IamRole, String> createSnapshotResource(
-      AuthenticatedUserRequest userReq, UUID snapshotId, SnapshotRequestModelPolicies policies) {
-    return callProvider(() -> iamProvider.createSnapshotResource(userReq, snapshotId, policies));
+      AuthenticatedUserRequest userReq,
+      UUID snapshotId,
+      UUID parentDatasetId,
+      SnapshotRequestModelPolicies policies) {
+    return callProvider(
+        () -> iamProvider.createSnapshotResource(userReq, snapshotId, parentDatasetId, policies));
   }
 
   /**

src/main/java/bio/terra/service/auth/iam/sam/SamIam.java

@@ -263,34 +263,51 @@ private Map<IamRole, String> syncDatasetResourcePoliciesInner(
 
   @Override
   public Map<IamRole, String> createSnapshotResource(
-      AuthenticatedUserRequest userReq, UUID snapshotId, SnapshotRequestModelPolicies policies)
+      AuthenticatedUserRequest userReq,
+      UUID snapshotId,
+      UUID parentDatasetId,
+      SnapshotRequestModelPolicies policies)
       throws InterruptedException {
     SamRetry.retry(
-        configurationService, () -> createSnapshotResourceInnerV2(userReq, snapshotId, policies));
+        configurationService,
+        () -> createSnapshotResourceInnerV2(userReq, snapshotId, parentDatasetId, policies));
     return SamRetry.retry(
         configurationService, () -> syncSnapshotResourcePoliciesInner(userReq, snapshotId));
   }
 
   private void createSnapshotResourceInnerV2(
-      AuthenticatedUserRequest userReq, UUID snapshotId, SnapshotRequestModelPolicies policies)
-      throws ApiException {
+      AuthenticatedUserRequest userReq,
+      UUID snapshotId,
+      UUID parentDatasetId,
+      SnapshotRequestModelPolicies policies)
+      throws ApiException, InterruptedException {
     ResourcesApi samResourceApi = samApiService.resourcesApi(userReq.getToken());
-    CreateResourceRequestV2 req = createSnapshotResourceRequest(userReq, snapshotId, policies);
+    CreateResourceRequestV2 req =
+        createSnapshotResourceRequest(userReq, snapshotId, parentDatasetId, policies);
     samResourceApi.createResourceV2(IamResourceType.DATASNAPSHOT.toString(), req);
   }
 
   @VisibleForTesting
   CreateResourceRequestV2 createSnapshotResourceRequest(
-      AuthenticatedUserRequest userReq, UUID snapshotId, SnapshotRequestModelPolicies policies) {
+      AuthenticatedUserRequest userReq,
+      UUID snapshotId,
+      UUID parentDatasetId,
+      SnapshotRequestModelPolicies policies)
+      throws InterruptedException {
     policies = Optional.ofNullable(policies).orElse(new SnapshotRequestModelPolicies());
-    UserStatusInfo userStatusInfo = getUserInfoAndVerify(userReq);
     CreateResourceRequestV2 req = new CreateResourceRequestV2().resourceId(snapshotId.toString());
 
     req.putPoliciesItem(
         IamRole.ADMIN.toString(), createAccessPolicy(IamRole.ADMIN, getAdminEmailList()));
 
     List<String> stewards = new ArrayList<>();
-    stewards.add(userStatusInfo.getUserEmail());
+    if (parentDatasetId == null
+        || !retrieveUserRoles(userReq, IamResourceType.DATASET, parentDatasetId)
+            .contains(IamRole.CUSTODIAN.toString())) {
+      // Add the current user as a steward if there is no parent dataset, or they are not
+      // a custodian of the parent.
+      stewards.add(getUserInfoAndVerify(userReq).getUserEmail());
+    }
     stewards.addAll(ListUtils.emptyIfNull(policies.getStewards()));
     req.putPoliciesItem(IamRole.STEWARD.toString(), createAccessPolicy(IamRole.STEWARD, stewards));
 
@@ -306,7 +323,15 @@ CreateResourceRequestV2 createSnapshotResourceRequest(
         createAccessPolicy(IamRole.AGGREGATE_DATA_READER, policies.getAggregateDataReaders()));
 
     req.authDomain(List.of());
-    logger.debug("SAM request: " + req);
+
+    if (parentDatasetId != null) {
+      req.setParent(
+          new FullyQualifiedResourceId()
+              .resourceTypeName(IamResourceType.DATASET.toString())
+              .resourceId(parentDatasetId.toString()));
+    }
+
+    logger.debug("SAM request: {}", req);
     return req;
   }
 

src/main/java/bio/terra/service/snapshot/flight/SnapshotWorkingMapKeys.java

@@ -26,4 +26,5 @@ private SnapshotWorkingMapKeys() {}
   public static final String SNAPSHOT_FIRECLOUD_GROUP_EMAIL = "snapshotFirecloudGroupEmail";
   public static final String SNAPSHOT_DATA_ACCESS_CONTROL_GROUPS =
       "snapshotDataAccessControlGroups";
+  public static final String SNAPSHOT_INHERIT_STEWARD_ENABLED = "snapshotInheritStewardEnabled";
 }

src/main/java/bio/terra/service/snapshot/flight/create/SnapshotAuthzBqJobUserStep.java

@@ -1,28 +1,43 @@
 package bio.terra.service.snapshot.flight.create;
 
+import bio.terra.common.iam.AuthenticatedUserRequest;
+import bio.terra.service.auth.iam.IamResourceType;
 import bio.terra.service.auth.iam.IamRole;
+import bio.terra.service.auth.iam.IamService;
+import bio.terra.service.dataset.Dataset;
 import bio.terra.service.resourcemanagement.ResourceService;
-import bio.terra.service.snapshot.Snapshot;
 import bio.terra.service.snapshot.SnapshotService;
 import bio.terra.service.snapshot.flight.SnapshotWorkingMapKeys;
 import bio.terra.stairway.FlightContext;
 import bio.terra.stairway.FlightMap;
 import bio.terra.stairway.Step;
 import bio.terra.stairway.StepResult;
 import com.fasterxml.jackson.core.type.TypeReference;
-import java.util.Collections;
+import java.util.ArrayList;
+import java.util.List;
 import java.util.Map;
 
 public class SnapshotAuthzBqJobUserStep implements Step {
   private final SnapshotService snapshotService;
   private final ResourceService resourceService;
+  private final IamService sam;
+  private final AuthenticatedUserRequest request;
   private final String snapshotName;
+  private final Dataset sourceDataset;
 
   public SnapshotAuthzBqJobUserStep(
-      SnapshotService snapshotService, ResourceService resourceService, String snapshotName) {
+      SnapshotService snapshotService,
+      ResourceService resourceService,
+      IamService sam,
+      AuthenticatedUserRequest request,
+      String snapshotName,
+      Dataset sourceDataset) {
     this.snapshotService = snapshotService;
     this.resourceService = resourceService;
+    this.sam = sam;
+    this.request = request;
     this.snapshotName = snapshotName;
+    this.sourceDataset = sourceDataset;
   }
 
   @Override
@@ -31,22 +46,31 @@ public StepResult doStep(FlightContext context) throws InterruptedException {
     Map<IamRole, String> policyMap =
         workingMap.get(SnapshotWorkingMapKeys.POLICY_MAP, new TypeReference<>() {});
 
-    Snapshot snapshot = snapshotService.retrieveByName(snapshotName);
+    String googleProjectId =
+        snapshotService.retrieveByName(snapshotName).getProjectResource().getGoogleProjectId();
 
     // Allow the steward and reader to make queries in this project.
+    List<String> policyEmails =
+        new ArrayList<>(List.of(policyMap.get(IamRole.STEWARD), policyMap.get(IamRole.READER)));
+
+    Boolean inheritEnabled =
+        context
+            .getInputParameters()
+            .get(SnapshotWorkingMapKeys.SNAPSHOT_INHERIT_STEWARD_ENABLED, Boolean.class);
+    if (inheritEnabled != null && inheritEnabled) {
+      var datasetPolicyMap =
+          sam.retrievePolicyEmails(request, IamResourceType.DATASET, sourceDataset.getId());
+      // Allow the custodian to make queries in this project.
+      policyEmails.add(datasetPolicyMap.get(IamRole.CUSTODIAN));
+    }
     // The underlying service provides retries so we do not need to retry this operation
-    resourceService.grantPoliciesBqJobUser(
-        snapshot.getProjectResource().getGoogleProjectId(),
-        Collections.singletonList(policyMap.get(IamRole.STEWARD)));
-    resourceService.grantPoliciesBqJobUser(
-        snapshot.getProjectResource().getGoogleProjectId(),
-        Collections.singletonList(policyMap.get(IamRole.READER)));
+    resourceService.grantPoliciesBqJobUser(googleProjectId, policyEmails);
 
     return StepResult.getStepResultSuccess();
   }
 
   @Override
-  public StepResult undoStep(FlightContext context) throws InterruptedException {
+  public StepResult undoStep(FlightContext context) {
     return StepResult.getStepResultSuccess();
   }
 }

src/main/java/bio/terra/service/snapshot/flight/create/SnapshotAuthzIamStep.java

@@ -9,7 +9,7 @@
 import bio.terra.model.SnapshotRequestModelPolicies;
 import bio.terra.service.auth.iam.IamRole;
 import bio.terra.service.auth.iam.IamService;
-import bio.terra.service.snapshot.SnapshotService;
+import bio.terra.service.dataset.Dataset;
 import bio.terra.service.snapshot.flight.SnapshotWorkingMapKeys;
 import bio.terra.service.snapshot.flight.duos.SnapshotDuosFlightUtils;
 import bio.terra.stairway.FlightContext;
@@ -23,23 +23,23 @@
 
 public class SnapshotAuthzIamStep implements Step {
   private final IamService sam;
-  private final SnapshotService snapshotService;
   private final SnapshotRequestModel snapshotRequestModel;
   private final AuthenticatedUserRequest userReq;
   private final UUID snapshotId;
+  private final Dataset sourceDataset;
   private static final Logger logger = LoggerFactory.getLogger(SnapshotAuthzIamStep.class);
 
   public SnapshotAuthzIamStep(
       IamService sam,
-      SnapshotService snapshotService,
       SnapshotRequestModel snapshotRequestModel,
       AuthenticatedUserRequest userReq,
-      UUID snapshotId) {
+      UUID snapshotId,
+      Dataset sourceDataset) {
     this.sam = sam;
-    this.snapshotService = snapshotService;
     this.snapshotRequestModel = snapshotRequestModel;
     this.userReq = userReq;
     this.snapshotId = snapshotId;
+    this.sourceDataset = sourceDataset;
   }
 
   @Override
@@ -57,8 +57,18 @@ public StepResult doStep(FlightContext context) throws InterruptedException {
           workingMap.get(SnapshotWorkingMapKeys.SNAPSHOT_FIRECLOUD_GROUP_EMAIL, String.class);
       derivedPolicies.addReadersItem(snapshotFirecloudGroupEmail);
     }
+    final UUID parentDatasetId;
+    Boolean inheritEnabled =
+        context
+            .getInputParameters()
+            .get(SnapshotWorkingMapKeys.SNAPSHOT_INHERIT_STEWARD_ENABLED, Boolean.class);
+    if (inheritEnabled != null && inheritEnabled) {
+      parentDatasetId = sourceDataset.getId();
+    } else {
+      parentDatasetId = null;
+    }
     Map<IamRole, String> policies =
-        sam.createSnapshotResource(userReq, snapshotId, derivedPolicies);
+        sam.createSnapshotResource(userReq, snapshotId, parentDatasetId, derivedPolicies);
     workingMap.put(SnapshotWorkingMapKeys.POLICY_MAP, policies);
     return StepResult.getStepResultSuccess();
   }
@@ -71,7 +81,7 @@ public StepResult undoStep(FlightContext context) {
       // when SAM deletes the ACL. How 'bout that!
     } catch (UnauthorizedException ex) {
       // suppress exception
-      logger.error("NEEDS CLEANUP: delete sam resource for snapshot " + snapshotId.toString());
+      logger.error("NEEDS CLEANUP: delete sam resource for snapshot {}", snapshotId);
       logger.warn(ex.getMessage());
     } catch (NotFoundException ex) {
       // suppress exception

src/main/java/bio/terra/service/snapshot/flight/create/SnapshotAuthzTabularAclStep.java

@@ -4,8 +4,12 @@
 
 import bio.terra.common.FlightUtils;
 import bio.terra.common.exception.PdaoException;
+import bio.terra.common.iam.AuthenticatedUserRequest;
+import bio.terra.service.auth.iam.IamResourceType;
 import bio.terra.service.auth.iam.IamRole;
+import bio.terra.service.auth.iam.IamService;
 import bio.terra.service.configuration.ConfigurationService;
+import bio.terra.service.dataset.Dataset;
 import bio.terra.service.snapshot.Snapshot;
 import bio.terra.service.snapshot.SnapshotService;
 import bio.terra.service.snapshot.flight.SnapshotWorkingMapKeys;
@@ -28,17 +32,26 @@ public class SnapshotAuthzTabularAclStep implements Step {
   private final BigQuerySnapshotPdao bigQuerySnapshotPdao;
   private final SnapshotService snapshotService;
   private final ConfigurationService configService;
+  private final IamService iamService;
   private final UUID snapshotId;
+  private final AuthenticatedUserRequest userReq;
+  private final Dataset sourceDataset;
 
   public SnapshotAuthzTabularAclStep(
       BigQuerySnapshotPdao bigQuerySnapshotPdao,
       SnapshotService snapshotService,
       ConfigurationService configService,
-      UUID snapshotId) {
+      IamService iamService,
+      UUID snapshotId,
+      AuthenticatedUserRequest userReq,
+      Dataset sourceDataset) {
     this.bigQuerySnapshotPdao = bigQuerySnapshotPdao;
     this.snapshotService = snapshotService;
     this.configService = configService;
     this.snapshotId = snapshotId;
+    this.userReq = userReq;
+    this.iamService = iamService;
+    this.sourceDataset = sourceDataset;
   }
 
   @Override
@@ -53,6 +66,16 @@ public StepResult doStep(FlightContext context) throws InterruptedException {
     emails.add(policies.get(IamRole.STEWARD));
     emails.add(policies.get(IamRole.READER));
 
+    Boolean inheritEnabled =
+        context
+            .getInputParameters()
+            .get(SnapshotWorkingMapKeys.SNAPSHOT_INHERIT_STEWARD_ENABLED, Boolean.class);
+    if (inheritEnabled != null && inheritEnabled) {
+      var datasetPolicyMap =
+          iamService.retrievePolicyEmails(userReq, IamResourceType.DATASET, sourceDataset.getId());
+      emails.add(datasetPolicyMap.get(IamRole.CUSTODIAN));
+    }
+
     try {
       if (configService.testInsertFault(SNAPSHOT_GRANT_ACCESS_FAULT)) {
         throw new BigQueryException(

src/main/java/bio/terra/service/snapshot/flight/create/SnapshotCreateFlight.java

@@ -312,7 +312,7 @@ public SnapshotCreateFlight(FlightMap inputParameters, Object applicationContext
 
     // Create the IAM resource and readers for the snapshot
     // The IAM code contains retries, so we don't make a retry rule here.
-    addStep(new SnapshotAuthzIamStep(iamClient, snapshotService, snapshotReq, userReq, snapshotId));
+    addStep(new SnapshotAuthzIamStep(iamClient, snapshotReq, userReq, snapshotId, sourceDataset));
 
     // Now that the snapshot exists in Sam, we can add data access control groups to the snapshot
     addStep(new CreateSnapshotSetDataAccessGroupsStep(snapshotReq.getDataAccessControlGroups()));
@@ -350,7 +350,13 @@ public SnapshotCreateFlight(FlightMap inputParameters, Object applicationContext
       // Apply the IAM readers to the BQ dataset
       addStep(
           new SnapshotAuthzTabularAclStep(
-              bigQuerySnapshotPdao, snapshotService, configService, snapshotId),
+              bigQuerySnapshotPdao,
+              snapshotService,
+              configService,
+              iamService,
+              snapshotId,
+              userReq,
+              sourceDataset),
           pdaoAclRetryRule);
 
       // Apply the IAM readers to the GCS files
@@ -361,7 +367,9 @@ public SnapshotCreateFlight(FlightMap inputParameters, Object applicationContext
             pdaoAclRetryRule);
       }
 
-      addStep(new SnapshotAuthzBqJobUserStep(snapshotService, resourceService, snapshotName));
+      addStep(
+          new SnapshotAuthzBqJobUserStep(
+              snapshotService, resourceService, iamService, userReq, snapshotName, sourceDataset));
       addStep(
           new SnapshotAuthzServiceAccountConsumerStep(
               snapshotService, resourceService, snapshotName, tdrServiceAccountEmail));