add conn check

Signed-off-by: Oriol Muñoz <oriol.munoz@digitalasset.com>

Author: OriolMunoz-da

.github/workflows/performance_tests.yml

@@ -0,0 +1,26 @@
+name: CI on PRs (Splice Contributors)
+on: # TODO: replace with main only, once a day
+  pull_request:
+    types: [ opened, synchronize, reopened ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  id-token: write # Required for GCP Workload Identity for failure notifications
+  contents: read
+
+jobs:
+  performance_tests:
+    runs-on: self-hosted-k8s-small
+    container:
+      image: postgres:17 # TODO: only necessary for connection check, replace with whatever scala tsets are using
+    name: Performance Tests
+    if: github.event.pull_request.head.repo.full_name == github.event.pull_request.base.repo.full_name
+    steps:
+      - name: Connection check
+        shell: bash
+        run: |
+          echo "Checking connection to Splice services..."
+          PGPASSWORD="$PERFORMANCE_TESTS_DB_PASSWORD" psql -h"$PERFORMANCE_TESTS_DB_HOST" -U"$PERFORMANCE_TESTS_DB_USER" -dcantonnet -c '\l' || (echo "Connection to DB failed" && exit 1)