update

keepalived/ADD/ccmd

@@ -0,0 +1,56 @@
+#!/bin/bash
+
+##################################################
+# Docker                                         #
+# - --privileged                                 #
+# - --net host                                   #
+# Mount dir                                      #
+# - /etc/keepalived/                             #
+# - LOG_DIR                                      #
+##################################################
+
+set -euo pipefail
+export LANG=en_US.UTF-8
+trap Quit EXIT
+
+PIDS=
+GOT_SIGTERM=
+LOG_DIR='/var/log/keepalived'
+
+function Print {
+    local file=/dev/null
+    [ '-f' = "$1" ] && file=$2 && shift && shift
+    date +"[%F %T] $*" | tee -a $file
+}
+
+function Quit {
+    Print killing keepalived ...
+    while :; do
+        pkill -f keepalived && Print killing keepalived ... || break
+        sleep 1
+    done
+    Print Container stopped.
+    test -n "$GOT_SIGTERM"
+}
+
+function StartProc {
+    Print Start keeplived ...
+    rm -rf /var/run/keepalived
+    keepalived -f /etc/keepalived/keepalived.conf -lDGn &>> $LOG_DIR/keepalived.log &
+    PIDS="$PIDS $!"
+}
+
+function Main {
+    local pid=
+    StartProc
+    trap "GOT_SIGTERM=1; Print Got SIGTERM ..." SIGTERM
+    while [ -z "$GOT_SIGTERM" ] && sleep 1; do
+        for pid in $PIDS; do
+            [ ! -e /proc/$pid ] && Print Unexpected error! && exit
+        done
+    done
+}
+
+# Start here
+Main
+