Wait for clustertasks before checking pipelines

We observed on an SNO system, that the pipelines were there but the
clustertasks were not created yet, and so all the pipelineruns just
failed due to missing tasks. Let's make sure we wait for clustertasks
first.

We wait for max an hour

scripts/start_pipelines.sh

@@ -3,8 +3,27 @@
 build_ns=quarkuscoffeeshop-cicd
 pipelines=('build-and-push-quarkuscoffeeshop-barista' 'build-and-push-quarkuscoffeeshop-counter' 'build-and-push-quarkuscoffeeshop-customerloyalty' 'build-and-push-quarkuscoffeeshop-customermocker' 'build-and-push-quarkuscoffeeshop-inventory' 'build-and-push-quarkuscoffeeshop-kitchen' 'build-and-push-quarkuscoffeeshop-web')
 
-echo "Checking for resources to be available to start pipelines"
+
+MAX_ATTEMPTS=720
 DELAY=5
+ATTEMPT=1
+
+while [ ${ATTEMPT} -le ${MAX_ATTEMPTS} ]; do
+    OUT=$(oc get clustertasks 2>/dev/null | wc -l)
+    if [ ${OUT} -gt 0 ]; then
+        echo "ClusterTasks found"
+        break
+    else
+        echo "ClusterTasks not found yet"
+        if [ ${ATTEMPT} -ge ${MAX_ATTEMPTS} ]; then
+            echo "Max attempts reached. Existing."
+        fi
+        ATTEMPT=$((ATTEMPT + 1))
+        sleep ${DELAY}
+    fi
+done
+
+echo "Checking for resources to be available to start pipelines"
 retry=0
 check=1
 while [ "$check" == "1" ]; do