docs/NETWORK_ONLINE: fix example

Type=oneshot is necessary for systemd to actually wait for the service
to return. With RemainAfterExit=yes it won't be started again.

Fixes #26342.

diff --git a/docs/NETWORK_ONLINE.md b/docs/NETWORK_ONLINE.md
index 084f0d138199b4c0de8188427efb64b45353d977..aec27ed5a4431d3349f6b1ef9c3575cee279dfe6 100644 (file)
--- a/docs/NETWORK_ONLINE.md
+++ b/docs/NETWORK_ONLINE.md
@@ -252,6 +252,8 @@ established), the following simple service could be used:
 DefaultDependencies=no
 After=nss-lookup.target
 Before=network-online.target
+Type=oneshot
+RemainAfterExit=yes
 
 [Service]
 ExecStart=sh -c 'while ! ping -c 1 example.com; do sleep 1; done'