From 45fb7202ac0e606ccb7b4fe95f169424f0a6cabc Mon Sep 17 00:00:00 2001
From: Carl George <carl@george.computer>
Date: Mon, 5 Apr 2021 15:01:20 -0500
Subject: notify: Send all sd_notify signals from main caddy process (#4060)

Initial sd_notify support was added in #3963, but that sent signals from
both cmdRun and cmdReload.  This approach has two drawbacks:

- Reloads initiated via the API do not send signals.
- The signals are sent from different processes, which requires the
  `NotifyAccess=exec` directive in the unit file.

This change moves the NotifyReloading and NotifyReadiness invocations to
Load, which address both of those drawbacks.  It also adds a
complimentary NotifyStopping method which is invoked from handleStop.
All the notify methods are defined in a notify package to avoid an
import loop.
---
 notify/notify.go | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 notify/notify.go

(limited to 'notify/notify.go')

diff --git a/notify/notify.go b/notify/notify.go
new file mode 100644
index 0000000..bca80c1
--- /dev/null
+++ b/notify/notify.go
@@ -0,0 +1,30 @@
+// Copyright 2015 Matthew Holt and The Caddy Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package notify
+
+// NotifyReadiness notifies process manager of readiness.
+func NotifyReadiness() error {
+	return notifyReadiness()
+}
+
+// NotifyReloading notifies process manager of reloading.
+func NotifyReloading() error {
+	return notifyReloading()
+}
+
+// NotifyStopping notifies process manager of stopping.
+func NotifyStopping() error {
+	return notifyStopping()
+}
-- 
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