donotmerge: try to reproduce ingress test failures

This test has been reported as flaky, we'll run 50 iterations per
job, trying to catch a failure.

.github/workflows/e2e-tests.yaml

@@ -70,7 +70,15 @@ jobs:
           TEST_STRICT_INTERFACE_CHANNELS: "recent 6 strict"
           TEST_MIRROR_LIST: '[{"name": "ghcr.io", "port": 5000, "remote": "https://ghcr.io", "username": "${{ github.actor }}", "password": "${{ secrets.GITHUB_TOKEN }}"}, {"name": "docker.io", "port": 5001, "remote": "https://registry-1.docker.io", "username": "", "password": ""}, {"name": "rocks.canonical.com", "port": 5002, "remote": "https://rocks.canonical.com/cdk"}]'
         run: |
-          cd tests/integration && sudo --user "$USER" --preserve-env --preserve-env=PATH -- env -- tox -e integration -- --tags ${{ inputs.test-tags }}
+
+          cd tests/integration
+          set -e
+          iteration=0
+          while [[ $iteration -lt 50 ]]; do
+            iteration=$(( iteration + 1 ))
+            echo "Starting test iteration: $iteration"
+            sudo --user "$USER" --preserve-env --preserve-env=PATH -- env -- tox -e integration -- --tags ${{ inputs.test-tags }} -k test_ingress
+          done
       - name: Prepare inspection reports
         if: failure()
         run: |