feat: implement single microvm query API

core/application/query.go

@@ -2,12 +2,35 @@ package application
 
 import (
 	"context"
+	"fmt"
 
 	"github.com/weaveworks/flintlock/core/models"
+	"github.com/weaveworks/flintlock/pkg/log"
 )
 
 func (a *app) GetMicroVM(ctx context.Context, id, namespace string) (*models.MicroVM, error) {
-	return nil, errNotImplemeted
+	logger := log.GetLogger(ctx).WithField("component", "app")
+	logger.Trace("querying microvm: ", id, "with namespace: ", namespace)
+
+	if id == "" {
+		return nil, errIDRequired
+	}
+
+	foundMvm, err := a.ports.Repo.Get(ctx, id, namespace)
+	if err != nil {
+		return nil, fmt.Errorf("error attempting to locate microvm with id: %s, in namespace: %s: %w", id, namespace, err)
+	}
+
+	if foundMvm == nil {
+		if foundMvm == nil {
+			return nil, specNotFoundError{
+				name:      id,
+				namespace: namespace,
+			}
+		}
+	}
+
+	return foundMvm, nil
 }
 
 func (a *app) GetAllMicroVM(ctx context.Context, namespace string) ([]*models.MicroVM, error) {