src/main/java/com/kamco/cd/training/model/service/ModelTrainMngService.java

@@ -95,7 +95,7 @@ public class ModelTrainMngService {
     modelTrainMngCoreService.saveModelConfig(modelId, req.getModelConfig());
 
     UUID tmpUuid = UUID.randomUUID();
-    String raw = tmpUuid.toString().replace("-", "");
+    String raw = tmpUuid.toString().toUpperCase().replace("-", "");
 
     List<String> uids =
         modelTrainMngCoreService.findDatasetUid(req.getTrainingDataset().getDatasetList());

src/main/java/com/kamco/cd/training/postgres/core/ModelTrainMngCoreService.java

@@ -25,6 +25,7 @@ import com.kamco.cd.training.postgres.repository.model.ModelDatasetRepository;
 import com.kamco.cd.training.postgres.repository.model.ModelMngRepository;
 import com.kamco.cd.training.train.dto.TrainRunRequest;
 import java.time.ZonedDateTime;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.UUID;
 import lombok.RequiredArgsConstructor;
@@ -503,6 +504,16 @@ public class ModelTrainMngCoreService {
     return datasetRepository.findDatasetUid(datasetIds);
   }
 
+  public List<Long> findModelDatasetMapp(Long modelId) {
+    List<Long> datasetUids = new ArrayList<>();
+    List<ModelDatasetMappEntity> entities = modelDatasetMapRepository.findByModelUid(modelId);
+    for (ModelDatasetMappEntity entity : entities) {
+      datasetUids.add(entity.getDatasetUid());
+    }
+
+    return datasetUids;
+  }
+
   public Long findModelStep1InProgressCnt() {
     return modelMngRepository.findModelStep1InProgressCnt();
   }

src/main/java/com/kamco/cd/training/postgres/repository/model/ModelDatasetMappRepository.java

@@ -6,4 +6,5 @@ import org.springframework.stereotype.Repository;
 
 @Repository
 public interface ModelDatasetMappRepository
-    extends JpaRepository<ModelDatasetMappEntity, ModelDatasetMappEntity.ModelDatasetMappId> {}
+    extends JpaRepository<ModelDatasetMappEntity, ModelDatasetMappEntity.ModelDatasetMappId>,
+        ModelDatasetMappRepositoryCustom {}

src/main/java/com/kamco/cd/training/postgres/repository/model/ModelDatasetMappRepositoryCustom.java

@@ -0,0 +1,8 @@
+package com.kamco.cd.training.postgres.repository.model;
+
+import com.kamco.cd.training.postgres.entity.ModelDatasetMappEntity;
+import java.util.List;
+
+public interface ModelDatasetMappRepositoryCustom {
+  List<ModelDatasetMappEntity> findByModelUid(Long modelId);
+}

src/main/java/com/kamco/cd/training/postgres/repository/model/ModelDatasetMappRepositoryImpl.java

@@ -0,0 +1,25 @@
+package com.kamco.cd.training.postgres.repository.model;
+
+import static com.kamco.cd.training.postgres.entity.QModelDatasetMappEntity.modelDatasetMappEntity;
+
+import com.kamco.cd.training.postgres.entity.ModelDatasetMappEntity;
+import com.querydsl.jpa.impl.JPAQueryFactory;
+import java.util.List;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Repository;
+
+@Repository
+@RequiredArgsConstructor
+public class ModelDatasetMappRepositoryImpl implements ModelDatasetMappRepositoryCustom {
+
+  private final JPAQueryFactory queryFactory;
+
+  @Override
+  public List<ModelDatasetMappEntity> findByModelUid(Long modelId) {
+    queryFactory
+        .select(modelDatasetMappEntity)
+        .from(modelDatasetMappEntity)
+        .where(modelDatasetMappEntity.modelUid.eq(modelId));
+    return List.of();
+  }
+}

src/main/java/com/kamco/cd/training/train/TrainApiController.java

@@ -164,4 +164,26 @@ public class TrainApiController {
     testJobService.cancel(modelId);
     return ApiResponseDto.ok("ok");
   }
+
+  @Operation(summary = "데이터셋 tmp 파일생성", description = "데이터셋 tmp 파일생성 API")
+  @ApiResponses(
+      value = {
+        @ApiResponse(
+            responseCode = "200",
+            description = "데이터셋 tmp 파일생성 성공",
+            content =
+                @Content(
+                    mediaType = "application/json",
+                    schema = @Schema(implementation = String.class))),
+        @ApiResponse(responseCode = "400", description = "잘못된 검색 조건", content = @Content),
+        @ApiResponse(responseCode = "500", description = "서버 오류", content = @Content)
+      })
+  @PostMapping("/create-tmp/{uuid}")
+  public ApiResponseDto<UUID> createTmpFile(
+      @Parameter(description = "uuid", example = "80a0e544-36ed-4999-b705-97427f23337d")
+          @PathVariable
+          UUID uuid) {
+
+    return ApiResponseDto.ok(trainJobService.createTmpFile(uuid));
+  }
 }

src/main/java/com/kamco/cd/training/train/service/TrainJobService.java

@@ -3,14 +3,17 @@ package com.kamco.cd.training.train.service;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.kamco.cd.training.common.enums.TrainStatusType;
 import com.kamco.cd.training.model.dto.ModelTrainMngDto;
+import com.kamco.cd.training.model.service.TmpDatasetService;
 import com.kamco.cd.training.postgres.core.ModelTrainJobCoreService;
 import com.kamco.cd.training.postgres.core.ModelTrainMngCoreService;
 import com.kamco.cd.training.train.dto.ModelTrainJobQueuedEvent;
 import com.kamco.cd.training.train.dto.TrainRunRequest;
+import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.time.ZonedDateTime;
+import java.util.List;
 import java.util.Map;
 import java.util.UUID;
 import lombok.RequiredArgsConstructor;
@@ -29,6 +32,7 @@ public class TrainJobService {
   private final DockerTrainService dockerTrainService;
   private final ObjectMapper objectMapper;
   private final ApplicationEventPublisher eventPublisher;
+  private final TmpDatasetService tmpDatasetService;
 
   // 학습 결과가 저장될 호스트 디렉토리
   @Value("${train.docker.responseDir}")
@@ -210,4 +214,26 @@ public class TrainJobService {
       return null;
     }
   }
+
+  public UUID createTmpFile(UUID modelUuid) {
+    UUID tmpUuid = UUID.randomUUID();
+    String raw = tmpUuid.toString().toUpperCase().replace("-", "");
+
+    Long modelId = modelTrainMngCoreService.findModelIdByUuid(modelUuid);
+    List<Long> datasetIds = modelTrainMngCoreService.findModelDatasetMapp(modelId);
+
+    List<String> uids = modelTrainMngCoreService.findDatasetUid(datasetIds);
+
+    try {
+      // 데이터셋 심볼링크 생성
+      Path path = tmpDatasetService.buildTmpDatasetSymlink(raw, uids);
+      ModelTrainMngDto.UpdateReq updateReq = new ModelTrainMngDto.UpdateReq();
+      updateReq.setRequestPath(path.toString());
+      modelTrainMngCoreService.updateModelMaster(modelId, updateReq);
+    } catch (IOException e) {
+      throw new RuntimeException(e);
+    }
+
+    return modelUuid;
+  }
 }