From 9d313608cf8ab1924f63f1f641495cfdc840d4af Mon Sep 17 00:00:00 2001
From: Joachim Bauch <bauch@struktur.de>
Date: Wed, 28 Feb 2024 22:52:54 +0100
Subject: [PATCH] docker: Add helper scripts to gracefully stop / wait for
 proxy.

---
 docker/proxy/Dockerfile |  3 +++
 docker/proxy/stop.sh    | 26 ++++++++++++++++++++++++++
 docker/proxy/wait.sh    | 33 +++++++++++++++++++++++++++++++++
 3 files changed, 62 insertions(+)
 create mode 100755 docker/proxy/stop.sh
 create mode 100755 docker/proxy/wait.sh

diff --git a/docker/proxy/Dockerfile b/docker/proxy/Dockerfile
index 114ffe0..7747edc 100644
--- a/docker/proxy/Dockerfile
+++ b/docker/proxy/Dockerfile
@@ -19,9 +19,12 @@ RUN adduser -D spreedbackend && \
 COPY --from=builder /workdir/bin/proxy /usr/bin/nextcloud-spreed-signaling-proxy
 COPY ./proxy.conf.in /config/proxy.conf.in
 COPY ./docker/proxy/entrypoint.sh /
+COPY ./docker/proxy/stop.sh /
+COPY ./docker/proxy/wait.sh /
 RUN chown spreedbackend /config
 RUN /usr/bin/nextcloud-spreed-signaling-proxy -version
 
 USER spreedbackend
 
+STOPSIGNAL SIGUSR1
 ENTRYPOINT [ "/entrypoint.sh" ]
diff --git a/docker/proxy/stop.sh b/docker/proxy/stop.sh
new file mode 100755
index 0000000..fe479fb
--- /dev/null
+++ b/docker/proxy/stop.sh
@@ -0,0 +1,26 @@
+#!/bin/bash
+#
+# Standalone signaling server for the Nextcloud Spreed app.
+# Copyright (C) 2024 struktur AG
+#
+# @author Joachim Bauch <bauch@struktur.de>
+#
+# @license GNU AGPL version 3 or any later version
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+set -e
+
+echo "Schedule signaling proxy to shutdown ..."
+exec killall -USR1 nextcloud-spreed-signaling-proxy
diff --git a/docker/proxy/wait.sh b/docker/proxy/wait.sh
new file mode 100755
index 0000000..d48ced7
--- /dev/null
+++ b/docker/proxy/wait.sh
@@ -0,0 +1,33 @@
+#!/bin/bash
+#
+# Standalone signaling server for the Nextcloud Spreed app.
+# Copyright (C) 2024 struktur AG
+#
+# @author Joachim Bauch <bauch@struktur.de>
+#
+# @license GNU AGPL version 3 or any later version
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+set -e
+
+echo "Waiting for signaling proxy to shutdown ..."
+while true
+do
+  if ! pgrep nextcloud-spreed-signaling-proxy > /dev/null ; then
+    echo "Signaling proxy has stopped"
+    exit 0
+  fi
+  sleep 1
+done