seafile-server: improved lifecycle management and scheduled gc

Exits container if seafile-server or socat exits. Exits the container after scheduled garbage collection. These changes allow a clean restart with deterministic behaviour. It is recommended to set the restart policy for the container to "unless-stopped".

seafile-server/scripts/gc.sh

@@ -3,6 +3,7 @@ source /scripts/utils.sh
 SEAFILE_DIR=/opt/seafile/seafile-server-latest
 
 if [[ $SEAFILE_SERVER != *"pro"* ]]; then
+    touch /tmp/gc_active
     echo "Seafile CE: Stop Seafile to perform offline garbage collection."
     stop_socat
     $SEAFILE_DIR/seafile.sh stop
@@ -17,8 +18,7 @@ fi
 $SEAFILE_DIR/seaf-gc.sh "$@"
 
 if [[ $SEAFILE_SERVER != *"pro"* ]]; then
-    echo "Seafile CE: Offline garbage collection completed. Starting Seafile."
-    sleep 3
-    $SEAFILE_DIR/seafile.sh start
-    start_socat &
+    echo "Seafile CE: Offline garbage collection completed. Exiting..."
+    echo "Set the restart policy of this container to unless-stopped to restart it automatically after garbage collection."
+    rm -f /tmp/gc_active
 fi

seafile-server/scripts/start.sh

@@ -3,8 +3,17 @@
 source /scripts/utils.sh
 trap 'sigterm' SIGTERM
 
-gc_cron &
+rm -f /tmp/gc_active
+
+gc_cron
 start_server &
 start_socat &
 logger &
-keep_running
+
+wait -n
+
+while [ -f /tmp/gc_active ]; do
+    sleep 10
+done
+
+exit $?

seafile-server/scripts/utils.sh

@@ -47,12 +47,6 @@ function logger {
     tail -f /opt/seafile/logs/common.log | tee
 }
 
-function keep_running {
-    while true; do
-        tail -f /dev/null & wait ${!}
-    done
-}
-
 function sig_kill_all () {
     pkill -SIGKILL -f "seaf-server -c ${default_ccnet_conf_dir}"
     pkill -SIGKILL -f "fileserver -c ${default_ccnet_conf_dir}"