tests/e2e: Wait for no restarts after deployment

Signed-off-by: Lukáš Doktor <[email protected]>

tests/e2e/operator.sh

@@ -258,6 +258,41 @@ uninstall_operator() {
 	fi
 }
 
+
+# Wait for no restarts in 3x20s (15s is the liveness probe)
+#
+wait_for_stabilization() {
+	declare -A restart_counts
+	iteration=0
+	count=0
+	while true; do
+		change=0
+		pod_info=$(kubectl get pods -n confidential-containers-system -o=jsonpath='{range .items[*]}{.metadata.name}{" "}{range .status.containerStatuses[*]}{.name}{" "}{.restartCount}{"\n"}{end}{end}')
+
+		while read -r pod container restart_count; do
+			if [ "${restart_counts[$pod-$container]}" != "$restart_count" ]; then
+				echo "Pod: $pod, Container: $container, Restart count: $restart_count"
+				restart_counts["$pod-$container"]=$restart_count
+				change=1
+			fi
+		done <<< "$pod_info"
+
+		[ $change -eq 0 ] && ((iteration++))
+
+		if [ $iteration -gt 3 ]; then
+			echo "No new restarts in 3x20s, proceeding..."
+			break
+		elif [ $count -gt 20 ]; then
+			echo "ERROR: Pods are still restarting after 20x20s, bail out!"
+			exit 1
+		fi
+
+		((count++))
+		sleep 20
+	done
+}
+
+
 usage() {
 	cat <<-EOF
 	Utility to build/install/uninstall the operator.
@@ -281,6 +316,7 @@ main() {
 		install_operator
 		build_pre_install_img
 		install_ccruntime
+		wait_for_stabilization
 	else
 		case $1 in
 			-h|--help) usage && exit 0;;