add lsyncd config

vagrant/fs-primary.sh

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+#!/bin/bash
+
+DEBIAN_FRONTEND=noninteractive
+
+apt-get install -y lsyncd
+mkdir /etc/lsyncd
+
+# STOP. Generate a root ssh key on primary, and provide the public key to the root account on secondary in authorized_keys.
+
+cp fs-primary/etc/lsyncd/lsyncd.conf.lua /etc/lsyncd/
+# EDIT /etc/lsyncd/lsyncd.conf.lua
+cp fs-primary/etc/logrotate.d/lsyncd /etc/logrotate.d/
+
+service lsyncd start
+#should already exist: sudo update-rc.d lsyncd defaults

vagrant/fs-primary/etc/logrotate.d/lsyncd

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+/var/log/lsyncd*.log {
+  monthly
+  missingok
+  rotate 7
+  compress
+  delaycompress
+  notifempty
+  su root root
+  sharedscripts
+  postrotate
+    [ -s /run/lsyncd.pid ] && /usr/sbin/service lsyncd restart > /dev/null 2>/dev/null || true
+  endscript
+}

vagrant/fs-primary/etc/lsyncd/lsyncd.conf.lua

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+-- Inotify listener max needs to be turned up. Assume 2KB per directory watched.
+-- The number of mirrored directories is the relevant variable because a Linux watch is created for each directory.
+-- It may make more sense to use a SITENAME_FILENAME strategy here instead of directory partitioning.
+-- The below example is 10 gigabytes / 2 = number of watches for 10GB, which is 5 million directories.
+-- echo 5000000 > /proc/sys/fs/inotify/max_user_watches
+-- For /etc/sysctl.conf: fs.inotify.max_user_watches=5000000
+-- Make sure maxProcesses is below ssh's MaxSessions (default is 10)
+settings {
+  logfile = "/var/log/lsyncd.log",
+  statusFile = "/var/log/lsyncd-status.log",
+  maxProcesses = 8
+}
+sync {
+  default.rsyncssh,
+  delete=true,
+  source="/home/*ACCOUNT*/testone",
+  host="*HOST*",
+  targetdir="/home/*ACCOUNT*/testone",
+  rsync = {
+    compress = true,
+    archive = true,
+    perms = true,
+    owner = true
+  },
+  delay=0
+}