infra: introduce daily cron job to trigger tests against latest compose

.github/workflows/nightly.yml

@@ -0,0 +1,21 @@
+name: nightly
+on:
+  schedule:
+    - cron: '0 1 * * *'
+  # can be run manually on https://github.com/rhinstaller/anaconda-webui/actions
+  workflow_dispatch:
+jobs:
+  trigger:
+    permissions:
+      statuses: write
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Clone repository
+        uses: actions/checkout@v4
+
+      - name: Trigger updates-testing scenario
+        run: |
+          make bots
+          mkdir -p ~/.config/cockpit-dev
+          echo "${{ github.token }}" >> ~/.config/cockpit-dev/github-token
+          bots/tests-trigger --force "-" "${TEST_OS}/compose-${COMPOSE_ID}"

test/run

@@ -7,6 +7,7 @@
 #
 # expensive       - expensive tests (test which run a full installation)
 # other           - non-expensive tests
+# compose-{compose-id} - run tests on a specific compose
 
 
 set -eux
@@ -21,6 +22,9 @@ RE_EXPENSIVE='E2E'
 
 # every known case needs to set RUN_OPTS to something non-empty, so that we can check if we hit any branch
 case "${TEST_SCENARIO:=}" in
+    *compose-*)
+        RUN_OPTS="$ALL_TESTS"; export TEST_COMPOSE="${TEST_SCENARIO#compose-}"
+        ;;
     *efi*) RUN_OPTS="$ALL_TESTS"; export TEST_FIRMWARE="efi" ;;&
     *expensive*)
         RUN_OPTS="$(echo "$ALL_TESTS" | grep -E "$RE_EXPENSIVE")"