make installing more robust

[log-quiet] / sysd-prom-fail-install

diff --git a/sysd-prom-fail-install b/sysd-prom-fail-install
index 244e0a51f09f1fac594e255848d1f3c24d9f5a7e..ad9845654480ff0cc93297bb90e7e7b9ee13caec 100755 (executable)
--- a/sysd-prom-fail-install
+++ b/sysd-prom-fail-install
@@ -13,6 +13,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# usage: since this is a counter, in prometheus alert manager you will
+# need to test something like: rate(node_systemd_unit_result_fail_count[30m]) > 0
+
 source /a/bin/errhandle/err
 [[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@"