From: mwolson_admin <mwolson_admin@deleuze.hcoop.net>
Date: Wed, 25 Jun 2008 07:11:13 +0000 (-0400)
Subject: More backup script revamp.
X-Git-Url: http://git.hcoop.net/clinton/scripts.git/commitdiff_plain/37839f02d2abe6c5639730ce59e4f16f9508695c?hp=6cc4523aaf00b4b630dc6bed91a7c1f5098b1148

More backup script revamp.

 - Split common s3-specific functions into s3.comon.

 - Make new simple script s3-move to move a single file over to S3.

 - Replace uses of copy_over with $MOVE_OVER.

 - Replace one use of catsync in an xargs command to use $MOVE_OVER
   instead.
---

diff --git a/hcoop-backup b/hcoop-backup
index 10bdc9a..0bfb73e 100755
--- a/hcoop-backup
+++ b/hcoop-backup
@@ -15,67 +15,12 @@ PATH=$PATH:/bin:/usr/bin:/sbin:/usr/sbin
 #COMPRESS_PROG=bzip2
 COMPRESS_EXT=.gz
 COMPRESS_PROG=gzip
-# units for BWLIMIT are KB/s
-BWLIMIT=325
-# units for CHUNKSIZE are MB
-CHUNKSIZE=5000
-
-IFS=$'\n'
-
-SCRIPTDIR=$(dirname $0)
 KEYFILE=/etc/backup-encryption-key
-BUCKET=hcoop.net-backups
-BACKUPDIR=full
 BACKUPTMP=/var/backups/hcoop-backup-testing
-SUBDIR=$(date +%Y.%m.%d)
-
-export S3_ACCESS_KEY_ID=$(cat ~mwolson_admin/.amazon/access.key)
-export S3_SECRET_ACCESS_KEY=~mwolson_admin/.amazon/secret.key
-
-function s3_cmd () {
-    # $1: command (get|put|ls|rm)
-    # $2: remote file
-    # $3: local file
-    local cmd=$1
-    shift
-    local bwarg
-    if test "$cmd" = "put"; then
-        bwarg="${BWLIMIT}K";
-    else
-        bwarg=
-    fi
-    $SCRIPTDIR/s3 $cmd $BUCKET "$1" "$2" $bwarg
-}
-
-function copy_over () {
-    # Move file to its offsite destination
-    # $1: file, $2: relative directory (optional)
-    if test -z "$1" || test -n "$3"; then
-        echo "Bad programming"
-        exit 1
-    fi
-    local FILE=$1
-    local DEST=$BACKUPDIR/$SUBDIR
-    if test -n "$2"; then
-        DEST=$DEST/$2
-    fi
-    split -d -b ${CHUNKSIZE}m $FILE ${FILE}.
-    for i in ${FILE}.*; do
-        s3_cmd put $DEST/$i $i
-        rm -f $i
-    done
-    rm -f $FILE
-}
-
-function prune_old_backups () {
-    local oldpwd=$PWD
-    cd $BACKUPDIR
-    find . -mindepth 1 -maxdepth 1 -type d -ctime +7 \
-        -execdir rm -fr '{}' \; || true
-    rm -rf $SUBDIR
-    mkdir -p $SUBDIR
-    cd $oldpwd
-}
+
+MOVE_OVER=$(dirname $0)/s3-move
+
+IFS=$'\n'
 
 #prune_old_backups
 
@@ -160,7 +105,7 @@ F=hcoop.backup.tar$COMPRESS_EXT.aescrypt
 tar clpf - --ignore-failed-read --no-recursion -C / -T backupfiles | \
   $COMPRESS_PROG | \
   ccrypt -k $KEYFILE -e > $F
-copy_over $F
+$MOVE_OVER $F
 
 # Acquire lock before messing with spamd
 COUNT=0
@@ -183,10 +128,7 @@ tar clpf - --ignore-failed-read -C / /var/local/lib/spamd | \
   $COMPRESS_PROG | \
   ccrypt -k $KEYFILE -e > $F.new
 rm -f $LOCK
-copy_over $F.new ..
-
-test -s $BACKUPDIR/$F.new && \
-    mv $BACKUPDIR/$F.new $BACKUPDIR/$F
+$MOVE_OVER $F
 
 vos listvol deleuze | \
   tail -n +2 | \
@@ -206,15 +148,14 @@ cat volumes | \
     "F={}.dump$COMPRESS_EXT.aescrypt ;
      vos dump -id {} -localauth -clone |
        $COMPRESS_PROG | ccrypt -k $KEYFILE -e > \$F ;
-     < \$F catsync -b $BWLIMIT $BACKUPDIR/$SUBDIR/\$F ;
-     rm -f \$F"
+     $MOVE_OVER \$F"
 
 echo backing up databases
 F=databases.tar$COMPRESS_EXT.aescrypt
 tar -C /var/backups/databases/ -cf - . | \
   $COMPRESS_PROG | \
   ccrypt -k $KEYFILE -e > $F
-copy_over $F
+$MOVE_OVER $F
 
 grep '[a-z/]' complain && \
   mail -a 'From: The Backup Program <backups@deleuze.hcoop.net>' \
diff --git a/s3-move b/s3-move
new file mode 100755
index 0000000..c8e42ae
--- /dev/null
+++ b/s3-move
@@ -0,0 +1,5 @@
+#!/bin/bash -e
+
+. $(dirname $0)/s3.common
+
+move_over $@
diff --git a/s3.common b/s3.common
new file mode 100644
index 0000000..51d3637
--- /dev/null
+++ b/s3.common
@@ -0,0 +1,63 @@
+# Common functions for dealing with Amazon S3.
+
+# units for BWLIMIT are KB/s
+BWLIMIT=325
+# units for CHUNKSIZE are MB
+CHUNKSIZE=5000
+
+BUCKET=hcoop.net-backups
+BACKUPDIR=full
+SUBDIR=$(date +%Y.%m.%d)
+S3CMD=$(dirname $0)/s3
+
+IFS=$'\n'
+
+export S3_ACCESS_KEY_ID=$(cat ~mwolson_admin/.amazon/access.key)
+export S3_SECRET_ACCESS_KEY=~mwolson_admin/.amazon/secret.key
+
+function s3_cmd () {
+    # $1: command (get|put|ls|rm)
+    # $2: remote file
+    # $3: local file
+    local cmd=$1
+    shift
+    local bwarg
+    if test "$cmd" = "put"; then
+        bwarg="${BWLIMIT}K";
+    else
+        bwarg=
+    fi
+    $S3CMD $cmd $BUCKET "$1" "$2" $bwarg
+}
+
+function move_over () {
+    # Move file to its offsite destination
+    # $1: file, $2: relative directory (optional)
+    if test -z "$1" || test -n "$3"; then
+        echo "Bad programming"
+        exit 1
+    fi
+    local FILE=$1
+    local DEST=$BACKUPDIR/$SUBDIR
+    if test -n "$2"; then
+        DEST=$DEST/$2
+    fi
+    split -d -b ${CHUNKSIZE}m $FILE ${FILE}.
+    for i in ${FILE}.*; do
+        s3_cmd put $DEST/$i $i
+        rm -f $i
+    done
+    rm -f $FILE
+}
+
+
+function prune_old_backups () {
+    # Implement me
+    local oldpwd=$PWD
+    cd $BACKUPDIR
+    find . -mindepth 1 -maxdepth 1 -type d -ctime +7 \
+        -execdir rm -fr '{}' \; || true
+    rm -rf $SUBDIR
+    mkdir -p $SUBDIR
+    cd $oldpwd
+}