Schedule a nightly CI pipeline against each PR

- don't report to Slack if SLACK_WEBHOOK_URL is not defined
- report GitHub statuses separately for regular pipeline & nightly
  pipeline

.github/workflows/trigger-gitlab.yml

@@ -13,6 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     env:
       IMAGEBUILDER_BOT_GITLAB_SSH_KEY: ${{ secrets.IMAGEBUILDER_BOT_GITLAB_SSH_KEY }}
+      GITLAB_TOKEN: ${{ secrets.IMAGEBUILDER_BOT_GITLAB_PIPELINE_TRIGGER_TOKEN }}
     steps:
       - name: Report status
         uses: haya14busa/action-workflow_run-status@v1
@@ -36,6 +37,7 @@ jobs:
           per_page: 100
 
       - name: Checkout branch
+        id: pr_data
         run: |
           PR_DATA=$(mktemp)
           # use uuid as a file terminator to avoid conflicts with data content
@@ -45,6 +47,7 @@ jobs:
 
           PR=$(jq -rc '.[] | select(.head.sha | contains("${{ github.event.workflow_run.head_sha }}")) | select(.state | contains("open"))' "$PR_DATA" | jq -r .number)
           if [ ! -z "$PR" ]; then
+            echo "pr_branch=PR-$PR" >> "$GITHUB_OUTPUT"
             git checkout -b PR-$PR
           else
             git checkout ${{ github.event.workflow_run.head_branch }}
@@ -88,3 +91,17 @@ jobs:
           else
             git push -f ci 
           fi
+
+      - name: Trigger GitLab nightly pipeline against this PR
+        if: ${{ env.GITLAB_TOKEN }} && ${{ steps.pr_date.outputs.pr_branch }}
+        run: |
+            # osbuild-composer
+            PROJECT_ID=34771166
+
+            # Simulate a nightly CI pipeline against this PR
+            curl --request POST --fail --form "token=$GITLAB_TOKEN" \
+                --form ref=${{ steps.pr_date.outputs.pr_branch }} \
+                --form "variables[CI_PIPELINE_SOURCE]=schedule" \
+                --form "variables[NIGHTLY]=true" \
+                --form "variables[RHEL_MAJOR]=9" \
+                "https://gitlab.com/api/v4/projects/$PROJECT_ID/trigger/pipeline"

schutzbot/slack_notification.sh

@@ -2,6 +2,11 @@
 
 set -eux
 
+if [ -z "$SLACK_WEBHOOK_URL" ]; then
+    echo "INFO: Variable SLACK_WEBHOOK_URL is undefined"
+    exit 0
+fi
+
 COMPOSE_ID=$(cat COMPOSE_ID)
 COMPOSER_NVR=$(cat COMPOSER_NVR)
 MESSAGE="\"Nightly pipeline execution on *$COMPOSE_ID* with *$COMPOSER_NVR* finished with status *$1* $2 \n QE: @atodorov, @jrusz, @jabia\n Link to results: $CI_PIPELINE_URL\n For edge testing status please see https://url.corp.redhat.com/edge-pipelines \""

schutzbot/update_github_status.sh

@@ -1,11 +1,5 @@
 #!/bin/bash
 
-
-# Don't overwrite CI statuses on GitHub branches for nightly pipelines
-if [[ "$CI_PIPELINE_SOURCE" == "schedule" ]]; then
-    exit 0
-fi
-
 # if a user is logged in to the runner, wait until they're done
 while (( $(who -s | wc -l)  > 0 )); do
     echo "Waiting for user(s) to log off"
@@ -33,12 +27,17 @@ else
   exit 1
 fi
 
+CONTEXT="Schutzbot on GitLab"
+if [[ "$CI_PIPELINE_SOURCE" == "schedule" ]]; then
+    CONTEXT="$CONTEXT, RHEL-${RHEL_MAJOR:-}-nightly"
+fi
+
 curl \
     -u "${SCHUTZBOT_LOGIN}" \
     -X POST \
     -H "Accept: application/vnd.github.v3+json" \
     "https://api.github.com/repos/osbuild/osbuild-composer/statuses/${CI_COMMIT_SHA}" \
-    -d '{"state":"'"${GITHUB_NEW_STATE}"'", "description": "'"${GITHUB_NEW_DESC}"'", "context": "Schutzbot on GitLab", "target_url": "'"${CI_PIPELINE_URL}"'"}'
+    -d '{"state":"'"${GITHUB_NEW_STATE}"'", "description": "'"${GITHUB_NEW_DESC}"'", "context": "'"${CONTEXT}"'", "target_url": "'"${CI_PIPELINE_URL}"'"}'
 
 # ff release branch on github if this ran on main
 if [ "$CI_COMMIT_BRANCH" = "main" ] && [ "$GITHUB_NEW_STATE" = "success" ]; then