SO1S-461 Nodes GET API 작성

src/main/java/io/so1s/backend/domain/kubernetes/controller/NodeController.java

@@ -0,0 +1,37 @@
+package io.so1s.backend.domain.kubernetes.controller;
+
+import io.fabric8.kubernetes.api.model.Node;
+import io.so1s.backend.domain.kubernetes.service.KubernetesService;
+import io.so1s.backend.domain.kubernetes.service.NodesService;
+import java.util.List;
+import javax.validation.Valid;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api/v1/nodes")
+@RequiredArgsConstructor
+public class NodeController {
+
+  private final NodesService nodesService;
+  private final KubernetesService kubernetesService;
+
+  @GetMapping
+  public ResponseEntity<List<Node>> getNodes() {
+    return ResponseEntity.ok(nodesService.findNodes());
+  }
+
+  @GetMapping("/{node_name}/yaml")
+  public ResponseEntity<String> findDeploymentYaml(
+      @Valid @PathVariable("node_name") String nodeName) {
+    Node node = nodesService.findNodeByName(nodeName);
+    String yaml = kubernetesService.getWorkloadToYaml(node);
+
+    return ResponseEntity.ok(yaml);
+  }
+
+}

src/main/java/io/so1s/backend/domain/kubernetes/exception/NodeNotFoundException.java

@@ -0,0 +1,11 @@
+package io.so1s.backend.domain.kubernetes.exception;
+
+import io.so1s.backend.global.error.exception.NotFoundException;
+
+public class NodeNotFoundException extends NotFoundException {
+
+  public NodeNotFoundException(String message) {
+    super(message);
+  }
+
+}

src/main/java/io/so1s/backend/domain/kubernetes/service/NodesService.java

@@ -0,0 +1,13 @@
+package io.so1s.backend.domain.kubernetes.service;
+
+import io.fabric8.kubernetes.api.model.Node;
+import io.so1s.backend.domain.kubernetes.exception.NodeNotFoundException;
+import java.util.List;
+
+public interface NodesService {
+
+  List<Node> findNodes();
+
+  Node findNodeByName(String name) throws NodeNotFoundException;
+
+}

src/main/java/io/so1s/backend/domain/kubernetes/service/NodesServiceImpl.java

@@ -0,0 +1,29 @@
+package io.so1s.backend.domain.kubernetes.service;
+
+import io.fabric8.kubernetes.api.model.Node;
+import io.fabric8.kubernetes.client.KubernetesClient;
+import io.so1s.backend.domain.kubernetes.exception.NodeNotFoundException;
+import java.util.List;
+import java.util.Optional;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+@Service
+@RequiredArgsConstructor
+public class NodesServiceImpl implements NodesService {
+
+  private final KubernetesClient client;
+
+  @Override
+  public List<Node> findNodes() {
+    return client.nodes().list().getItems();
+  }
+
+  @Override
+  public Node findNodeByName(String name) throws NodeNotFoundException {
+    return Optional.ofNullable(client.nodes().withName(name).get())
+        .orElseThrow(() -> new NodeNotFoundException(
+            String.format("Node %s not found.", name)));
+  }
+
+}

src/main/java/io/so1s/backend/domain/model/exception/DataTypeNotFoundException.java

@@ -1,8 +1,8 @@
 package io.so1s.backend.domain.model.exception;
 
-import io.so1s.backend.global.error.exception.DuplicatedException;
+import io.so1s.backend.global.error.exception.NotFoundException;
 
-public class DataTypeNotFoundException extends DuplicatedException {
+public class DataTypeNotFoundException extends NotFoundException {
 
   public DataTypeNotFoundException(String message) {
     super(message);