X-Git-Url: https://git.stderr.nl/gitweb?p=matthijs%2Fupstream%2Fbackupninja.git;a=blobdiff_plain;f=handlers%2Fmysql.in;fp=handlers%2Fmysql.in;h=de4e4c3d2f920d8117c2e960e9c1f5e1619ccf22;hp=0000000000000000000000000000000000000000;hb=579ea902ba24854b3c9acb307cda7e996e8e41a3;hpb=be75e4e6c536882c14db9a41c61585e7a9c045f6

diff --git a/handlers/mysql.in b/handlers/mysql.in
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+++ b/handlers/mysql.in
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+# -*- mode: sh; sh-basic-offset: 3; indent-tabs-mode: nil; -*-
+#
+# mysql handler script for backupninja
+#
+
+getconf backupdir /var/backups/mysql
+getconf databases all
+getconf ignores
+getconf dbhost localhost
+getconf hotcopy no
+getconf sqldump no
+getconf compress yes
+getconf vsname
+
+# authentication:
+getconf user
+getconf dbusername
+getconf dbpassword
+getconf configfile /etc/mysql/debian.cnf
+
+
+# Decide if the handler should operate on a vserver or on the host.
+# In the former case, check that $vsname exists and is running.
+local usevserver=no
+local vroot
+if [ $vservers_are_available = yes ]; then
+   if [ -n "$vsname" ]; then
+      # does it exist ?
+      if ! vservers_exist "$vsname" ; then
+         fatal "The vserver given in vsname ($vsname) does not exist."
+      fi
+      # is it running ?
+      $VSERVERINFO -q $vsname RUNNING
+      if [ $? -ne 0 ]; then
+         fatal "The vserver $vsname is not running."
+      fi
+      # everything ok
+      info "Using vserver '$vsname'."
+      usevserver=yes
+      vroot="$VROOTDIR/$vsname"
+   else
+      info "No vserver name specified, actions will be performed on the host."
+   fi
+fi
+
+## Prepare ignore part of the command
+## This only works for mysqldump at the moment
+
+ignore=''
+for i in $ignores; do
+       ignore="$ignore --ignore-table=$i"
+done
+	
+# create backup dirs, $vroot will be empty if no vsname was specified
+# and we will instead proceed to operate on the host
+[ -d $vroot$backupdir ] || mkdir -p $vroot$backupdir
+[ -d $vroot$backupdir ] || fatal "Backup directory '$vroot$backupdir'"
+hotdir="$backupdir/hotcopy"
+dumpdir="$backupdir/sqldump"
+
+if [ $usevserver = yes ]
+then
+	[ "$sqldump" == "no" -o -d $vroot$dumpdir ] || $VSERVER $vsname exec mkdir -p $dumpdir
+	[ "$hotcopy" == "no" -o -d $vroot$hotdir ] || $VSERVER $vsname exec mkdir -p $hotdir
+else
+	[ "$sqldump" == "no" -o -d $dumpdir ] || mkdir -p $dumpdir
+	[ "$hotcopy" == "no" -o -d $hotdir ] || mkdir -p $hotdir
+fi
+
+#######################################################################
+## AUTHENTICATION
+
+#
+# one of three authentication methods:
+# 1. setting the user, so that /home/user/.my.cnf is used.
+# 2. specifying the user and password in the handler config,
+#    which generates a temporary .my.cnf in /root/.my.cnf
+# 3. specify the config file with --defaults-extra-file
+#    (this option DOESN'T WORK WITH MYSQLHOTCOPY)
+#
+
+# create .my.cnf
+# only if dbusername and dbpassword specified.
+# we create a tmp file because we don't want to
+# specify the password on the command line.
+
+defaultsfile=""
+
+if [ "$dbusername" != "" -a "$dbpassword" != "" ]
+then
+    if [ $usevserver = yes ]
+    then
+    	vhome=`$VSERVER $vsname exec getent passwd "root" | @AWK@ -F: '{print $6}'`
+	home="$vroot$vhome"
+    else
+    	home=`getent passwd "root" | @AWK@ -F: '{print $6}'`
+    fi
+
+    [ -d $home ] || fatal "Can't find root's home directory ($home)."
+    
+    mycnf="$home/.my.cnf"
+    
+    if [ -f $mycnf ]
+    then
+	# rename temporarily
+	tmpcnf="$home/my.cnf.disable"
+	debug "mv $mycnf $tmpcnf"
+	mv $mycnf $tmpcnf
+    fi
+    
+    oldmask=`umask`
+    umask 077
+    cat > $mycnf <<EOF
+# auto generated backupninja mysql conf
+[mysql]
+host=$dbhost
+user=$dbusername
+password="$dbpassword"
+
+[mysqldump]
+host=$dbhost
+user=$dbusername
+password="$dbpassword"
+
+[mysqlhotcopy]
+host=$dbhost
+user=$dbusername
+password="$dbpassword"
+EOF
+	umask $oldmask
+	if [ $usevserver = yes ] 
+	then
+	    defaultsfile="--defaults-extra-file=$vhome/.my.cnf"
+	else
+	    defaultsfile="--defaults-extra-file=$mycnf"
+	fi
+fi
+
+# if a user is not set, use $configfile, otherwise use $mycnf
+if [ "$user" == "" ]; then
+	user=root;
+	defaultsfile="--defaults-extra-file=$configfile"
+else
+	userset=true;
+	if [ $usevserver = yes ]
+	then
+	    vuserhome=`$VSERVER $vsname exec getent passwd "$user" | @AWK@ -F: '{print $6}'`
+	    if [ $? -eq 2 ]
+	    then
+	    	fatal "User $user not found in /etc/passwd"
+	    fi
+    	    userhome="$vroot$vuserhome"
+	else
+	    userhome=`getent passwd "$user" | @AWK@ -F: '{print $6}'`
+	    if [ $? -eq 2 ]
+	    then
+	    	fatal "User $user not found in /etc/passwd"
+	    fi
+       	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 $defaultsfile"
+fi
+
+#######################################################################
+## HOT COPY
+
+if [ "$hotcopy" == "yes" ]
+then
+    info "Initializing hotcopy method"
+    if [ "$databases" == "all" ]
+    then
+	if [ $usevserver = yes ]
+	then
+	    	info "dbhost: $dbhost"
+		execstr="$VSERVER $vsname exec $MYSQLHOTCOPY -h $dbhost --quiet --allowold --regexp /.\*/./.\*/ $hotdir"
+	else
+		execstr="$MYSQLHOTCOPY --quiet --allowold --regexp /.\*/./.\*/ $hotdir"
+	fi
+	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
+		if [ $usevserver = yes ]
+		then
+			execstr="$VSERVER $vsname exec $MYSQLHOTCOPY --allowold $db $hotdir"
+		else
+			execstr="$MYSQLHOTCOPY --allowold $db $hotdir"
+		fi
+		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
+	if [ $usevserver = yes ]
+	then
+	    debug 'echo show databases | $VSERVER $vsname exec su $user -c \"$MYSQL $defaultsfile\" | grep -v Database'
+	    databases=`echo 'show databases' | $VSERVER $vsname exec su $user -c "$MYSQL $defaultsfile" | grep -v Database`
+	    if [ $? -ne 0 ]
+	    then
+	        fatal "Authentication problem, maybe user/password is wrong or mysqld is not running?"
+	    fi
+	else
+		databases=`echo 'show databases' | su $user -c "$MYSQL $defaultsfile" | grep -v Database`
+		if [ $? -ne 0 ]
+		then
+		    fatal "Authentication problem, maybe user/password is wrong or mysqld is not running?"
+		fi
+	fi
+fi
+
+	for db in $databases
+	do
+		if [ $usevserver = yes ]
+		then
+                   # Test to make sure mysqld is running, if it is not sqldump will not work
+                   $VSERVER $vsname exec su $user -c "$MYSQLADMIN $defaultsfile ping"
+                   if [ $? -ne 0 ]; then
+                      fatal "Either you have an authentication problem, or mysqld doesn't appear to be running!"
+                   fi
+                   if [ "$compress" == "yes" ]; then
+                      execstr="$VSERVER $vsname exec $MYSQLDUMP $defaultsfile --lock-tables --complete-insert --add-drop-table --quick --quote-names $ignore $db | $GZIP > $vroot$dumpdir/${db}.sql.gz"
+                   else
+                      execstr="$VSERVER $vsname exec $MYSQLDUMP $defaultsfile --lock-tables --complete-insert --add-drop-table --quick --quote-names $ignore $db -r $vroot$dumpdir/${db}.sql"
+                   fi
+		else
+                   # Test to make sure mysqld is running, if it is not sqldump will not work
+                   su $user -c "$MYSQLADMIN $defaultsfile ping"
+                   if [ $? -ne 0 ]; then
+                      fatal "Either you have an authentication problem, or mysqld doesn't appear to be running!"
+                   fi
+                   if [ "$compress" == "yes" ]; then
+                      execstr="$MYSQLDUMP $defaultsfile --lock-tables --complete-insert --add-drop-table --quick --quote-names $ignore $db | $GZIP > $dumpdir/${db}.sql.gz"
+                   else
+                      execstr="$MYSQLDUMP $defaultsfile --lock-tables --complete-insert --add-drop-table --quick --quote-names $ignore $db -r $dumpdir/${db}.sql"
+                   fi
+		fi
+		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 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 $mycnf"
+	rm $mycnf
+	if [ -f "$tmpcnf" ]
+	then
+		debug "mv $tmpcnf $mycnf"
+		mv $tmpcnf $mycnf
+	fi
+fi
+
+return 0