Added configuration scripts to hold customized options

[zfs-ubuntu/.git] / zfs-replicate

diff --git a/zfs-replicate b/zfs-replicate
index 413d078e05cf28311896be3d7d94bcca454aa6d0..a082ce3fe9de2214ca9d07e2c9dbf5f7fe76ac25 100755 (executable)
--- a/zfs-replicate
+++ b/zfs-replicate
@@ -1,26 +1,24 @@
 #/bin/bash
 
+# Author: Carl Baldwin & Alan Pippin
+# Description: This script replicates a remote zfs filesystem to a local zfs pool.
+#              This script will keep all snapshots in sync, removing the ones
+#              that have been deleted since the last replicate was performed.
+#              This script will only send the new, or missing, snapshots since
+#              the last replicate was performed.
 # Usage: replicate <hostname> <zfs filesystem>
+
+# source our configuration
+config="${0%/*}/zfs-scripts.conf"
+[ -e "${config}.dist" ] && . ${config}.dist
+[ -e "${config}" ] && . ${config}
+
+# command line arg parsing
 remote=$1
 remote_fs=$2
 remote_pool=${2%%/*}
-remote_lockdir="/tmp/zfs-admin-lock"
 hostname=`hostname`
 
-# Set the name of the local pool used to store the backup of the remote
-local_pool=backups
-
-# Set the email address to send notification to
-mailto=root@pippins.net
-mailx=/usr/bin/mailx
-
-# When this variable is set, local filesystems will be destroyed 
-# before receiving a full streams into them from the remote source.
-destroy_local_filesystem_on_full_replicate=0
-
-# The ssh connection doesn't find zfs without this.
-zfs=/usr/sbin/zfs
-
 # Setup our cleanup and exit trap
 cleanup() {
   if [[ -e "$local_list" ]]; then
@@ -30,9 +28,9 @@ cleanup() {
     rm -f $remote_list
   fi
   if [[ -n "$remote" ]]; then
-    ssh $remote ls -d "$remote_lockdir" > /dev/null 2>&1
+    ssh $remote ls -d "$lockdir" > /dev/null 2>&1
     if [[ $? == 0 ]]; then
-      ssh $remote rm -rf "$remote_lockdir"
+      ssh $remote rm -rf "$lockdir"
     fi
   fi
 }
@@ -82,7 +80,7 @@ maxsleeptime=60
 maxattempts=100
 attempts=0
 while true; do
-  ssh $remote mkdir "$remote_lockdir" >/dev/null 2>&1
+  ssh $remote mkdir "$lockdir" >/dev/null 2>&1
   if [ $? != 0 ]; then
     # Another zfs admin tool is running.
     # Wait a random amount of time and try again
@@ -96,7 +94,7 @@ while true; do
   if [[ $attempts -gt $maxattempts ]]; then
     # We've exceeded our maximum while loop count
     echo "-E- The zfs filesystem has been locked down. Skipping replicate operation."
-    fail_msg=`ssh $remote ls -ld $remote_lockdir 2>&1`
+    fail_msg=`ssh $remote ls -ld $lockdir 2>&1`
     fatal_and_exit "zfs-replicate-all unable to obtain zfs admin lock:\n$fail_msg" $mailto
   fi
 done