mirror of
https://0xacab.org/liberate/backupninja.git
synced 2024-11-08 20:02:32 +01:00
eabda5615c
This is probably completely unused by now, as vservers have been superseeded by alternative technology for many years already.
252 lines
6.4 KiB
Bash
252 lines
6.4 KiB
Bash
# -*- mode: sh; sh-basic-offset: 3; indent-tabs-mode: nil; -*-
|
|
# vim: set filetype=sh sw=3 sts=3 expandtab autoindent:
|
|
#
|
|
# mysql handler script for backupninja
|
|
#
|
|
|
|
getconf backupdir /var/backups/mysql
|
|
getconf databases all
|
|
getconf ignores
|
|
getconf nodata
|
|
getconf dbhost localhost
|
|
getconf hotcopy no
|
|
getconf sqldump no
|
|
getconf sqldumpoptions "--lock-tables --complete-insert --add-drop-table --quick --quote-names"
|
|
getconf compress yes
|
|
|
|
# authentication:
|
|
getconf user
|
|
getconf dbusername
|
|
getconf dbpassword
|
|
getconf configfile /etc/mysql/debian.cnf
|
|
|
|
|
|
## Prepare ignore part of the command
|
|
## This only works for mysqldump at the moment
|
|
|
|
ignore=''
|
|
for i in $ignores $nodata; do
|
|
ignore="$ignore --ignore-table=$i"
|
|
done
|
|
|
|
# create backup dirs
|
|
# and we will instead proceed to operate on the host
|
|
[ -d $backupdir ] || mkdir -p $backupdir
|
|
[ -d $backupdir ] || fatal "Backup directory '$backupdir'"
|
|
hotdir="$backupdir/hotcopy"
|
|
dumpdir="$backupdir/sqldump"
|
|
|
|
[ "$sqldump" == "no" -o -d $dumpdir ] || mkdir -p $dumpdir
|
|
[ "$hotcopy" == "no" -o -d $hotdir ] || mkdir -p $hotdir
|
|
|
|
#######################################################################
|
|
## AUTHENTICATION
|
|
|
|
#
|
|
# one of three authentication methods:
|
|
# 1. setting the user, so that /home/user/.my.cnf is used.
|
|
# 2. specifying the user and password in the handler config,
|
|
# which generates a temporary .my.cnf in /root/.my.cnf
|
|
# 3. specify the config file with --defaults-extra-file
|
|
# (this option DOESN'T WORK WITH MYSQLHOTCOPY)
|
|
#
|
|
|
|
# create .my.cnf
|
|
# only if dbusername and dbpassword specified.
|
|
# we create a tmp file because we don't want to
|
|
# specify the password on the command line.
|
|
|
|
defaultsfile=""
|
|
|
|
if [ -n "$dbusername" -a -n "$dbpassword" ]
|
|
then
|
|
home=`getent passwd "root" | @AWK@ -F: '{print $6}'`
|
|
|
|
[ -d $home ] || fatal "Can't find root's home directory ($home)."
|
|
|
|
mycnf="$home/.my.cnf"
|
|
|
|
workcnf="$mycnf"
|
|
|
|
if [ -f $workcnf ]
|
|
then
|
|
# rename temporarily
|
|
tmpcnf="$workcnf.disable"
|
|
debug "mv $workcnf $tmpcnf"
|
|
mv $workcnf $tmpcnf
|
|
fi
|
|
|
|
oldmask=`umask`
|
|
umask 077
|
|
cat > $workcnf <<EOF
|
|
# auto generated backupninja mysql conf
|
|
[mysql]
|
|
host=$dbhost
|
|
user=$dbusername
|
|
password="$dbpassword"
|
|
|
|
[mysqldump]
|
|
host=$dbhost
|
|
user=$dbusername
|
|
password="$dbpassword"
|
|
|
|
[mysqlhotcopy]
|
|
host=$dbhost
|
|
user=$dbusername
|
|
password="$dbpassword"
|
|
|
|
[mysqladmin]
|
|
host=$dbhost
|
|
user=$dbusername
|
|
password="$dbpassword"
|
|
EOF
|
|
umask $oldmask
|
|
defaultsfile="--defaults-extra-file=$mycnf"
|
|
|
|
# else, if a user is set use her .my.cnf
|
|
elif [ -n "$user" ]
|
|
then
|
|
userset=true;
|
|
|
|
userhome=`getent passwd "$user" | @AWK@ -F: '{print $6}'`
|
|
if [ $? -eq 2 ]
|
|
then
|
|
fatal "User $user not found in /etc/passwd"
|
|
fi
|
|
debug "User home set to: $userhome"
|
|
[ -f $userhome/.my.cnf ] || fatal "Can't find config file in $userhome/.my.cnf"
|
|
|
|
defaultsfile="--defaults-extra-file=$userhome/.my.cnf"
|
|
debug "using $defaultsfile"
|
|
# otherwise use $configfile
|
|
else
|
|
user=root
|
|
defaultsfile="--defaults-extra-file=$configfile"
|
|
fi
|
|
|
|
#######################################################################
|
|
## HOT COPY
|
|
|
|
if [ "$hotcopy" == "yes" ]
|
|
then
|
|
info "Initializing hotcopy method"
|
|
if [ "$databases" == "all" ]
|
|
then
|
|
execstr="$MYSQLHOTCOPY --quiet --allowold --regexp /.\*/./.\*/ $hotdir"
|
|
debug "su $user -c \"$execstr\""
|
|
if [ ! $test ]
|
|
then
|
|
output=`su $user -c "$execstr" 2>&1`
|
|
code=$?
|
|
if [ "$code" == "0" ]
|
|
then
|
|
debug "$output"
|
|
info "Successfully finished hotcopy of all mysql databases"
|
|
else
|
|
warning "$output"
|
|
warning "Failed to hotcopy all mysql databases"
|
|
fi
|
|
fi
|
|
else
|
|
for db in $databases
|
|
do
|
|
execstr="$MYSQLHOTCOPY --allowold $db $hotdir"
|
|
debug 'su $user -c \"$execstr\"'
|
|
if [ ! $test ]
|
|
then
|
|
output=`su $user -c "$execstr" 2>&1`
|
|
code=$?
|
|
if [ "$code" == "0" ]
|
|
then
|
|
debug "$output"
|
|
info "Successfully finished hotcopy of mysql database $db"
|
|
else
|
|
warning "$output"
|
|
warning "Failed to hotcopy mysql database $db"
|
|
fi
|
|
fi
|
|
done
|
|
fi
|
|
fi
|
|
|
|
##########################################################################
|
|
## SQL DUMP
|
|
|
|
if [ "$sqldump" == "yes" ]
|
|
then
|
|
info "Initializing SQL dump method"
|
|
if [ "$databases" == "all" ]
|
|
then
|
|
databases=$(set -o pipefail ; su $user -c "$MYSQL $defaultsfile -N -B -e 'show databases'" | sed 's/|//g;/\+----/d;/^\(information\|performance\)_schema$/d')
|
|
if [ $? -ne 0 ]
|
|
then
|
|
fatal "Authentication problem, maybe user/password is wrong or mysqld is not running?"
|
|
fi
|
|
fi
|
|
|
|
for db in $databases
|
|
do
|
|
# Sanitize database name
|
|
db=$(echo $db | tr -d \'\;)
|
|
|
|
DUMP_BASE="$MYSQLDUMP $defaultsfile $sqldumpoptions"
|
|
|
|
# Dumping structure and data
|
|
DUMP="$DUMP_BASE $ignore $db"
|
|
|
|
# If requested, dump only the table structure for this database
|
|
if echo "$nodata" | grep -E '(^|[[:space:]])'"$db\." >/dev/null
|
|
then
|
|
# Get the structure of the tables, without data
|
|
DUMP_STRUCT="$DUMP_BASE --no-data $db"
|
|
for qualified_table in $nodata
|
|
do
|
|
table=$( expr match "$qualified_table" "$db\.\(.\+\)" )
|
|
DUMP_STRUCT="$DUMP_STRUCT $table"
|
|
done
|
|
DUMP="( $DUMP; $DUMP_STRUCT )"
|
|
fi
|
|
|
|
# Test to make sure mysqld is running, if it is not sqldump will not work
|
|
su $user -c "$MYSQLADMIN $defaultsfile ping 2>&1 >/dev/null"
|
|
if [ $? -ne 0 ]; then
|
|
fatal "mysqld doesn't appear to be running!"
|
|
fi
|
|
if [ "$compress" == "yes" ]; then
|
|
execstr="$DUMP | $GZIP $GZIP_OPTS > '$dumpdir/${db}.sql.gz'"
|
|
else
|
|
execstr="$DUMP > '$dumpdir/${db}.sql'"
|
|
fi
|
|
debug "su $user -c \"$execstr\""
|
|
|
|
if [ ! $test ]
|
|
then
|
|
output=`su $user -s /bin/bash -c "set -o pipefail ; $execstr" 2>&1`
|
|
code=$?
|
|
if [ "$code" == "0" ]
|
|
then
|
|
debug "$output"
|
|
info "Successfully finished dump of mysql database $db"
|
|
else
|
|
warning "$output"
|
|
warning "Failed to dump mysql databases $db"
|
|
fi
|
|
fi
|
|
done
|
|
fi
|
|
|
|
# clean up tmp config file
|
|
if [ "$dbusername" != "" -a "$dbpassword" != "" ]
|
|
then
|
|
## clean up tmp config file
|
|
debug "rm $workcnf"
|
|
rm $workcnf
|
|
if [ -f "$tmpcnf" ]
|
|
then
|
|
debug "mv $tmpcnf $workcnf"
|
|
mv $tmpcnf $workcnf
|
|
fi
|
|
fi
|
|
|
|
return 0
|