fix for absent baseline target

Author: qrort

.github/workflows/slo.yml

@@ -187,14 +187,23 @@ jobs:
             rm -rf "$GITHUB_WORKSPACE/baseline/tests/slo/internal"
             cp -r "$GITHUB_WORKSPACE/current/tests/slo/internal" "$GITHUB_WORKSPACE/baseline/tests/slo/internal"
 
+            set +e
             docker build -t ydb-app-baseline \
               --build-arg SRC_PATH=${{ matrix.sdk.label }} \
               --build-arg JOB_NAME=${{ matrix.sdk.name }} \
               --build-arg REF="${{ steps.baseline.outputs.ref }}" \
               -f tests/slo/Dockerfile .
+              EXIT_CODE=$?
+              echo "BUILD_EXIT_CODE=$EXIT_CODE" >> $GITHUB_ENV
+              echo "Docker build exit code: $EXIT_CODE"
+                if [ $EXIT_CODE -ne 0 ]; then
+                    echo "Baseline build failed, using current image as baseline"
+                    docker tag ydb-app-current ydb-app-baseline
+                fi
+              set -e
           else
-            echo "No baseline app Dockerfile found"
-            exit 1
+            echo "No baseline app Dockerfile found, using current image as baseline"
+            docker tag ydb-app-current ydb-app-baseline
           fi
 
       - name: Initialize YDB SLO