Add MongoDB support.

ChangeLog

@@ -1,3 +1,7 @@
+Backup Manager 0.7.16
+	[ doekia ]
+	* Add MongoDB support
+
 Backup Manager 0.7.15
 	[ Philippe Villiers ]
 	* Documentation typos fixes

VERSION

@@ -1 +1 @@
-0.7.15
+0.7.16

backup-manager

@@ -26,7 +26,7 @@
 set -e
 
 RELEASE="true"
-VERSION="0.7.15"
+VERSION="0.7.16"
 
 # All the paths we provide
 libdir="/usr/lib/backup-manager"

backup-manager.conf.tpl

@@ -73,6 +73,7 @@ export BM_ARCHIVE_NICE_LEVEL="10"
 # - tarball-incremental
 # - mysql
 # - pgsql
+# - mongodb
 # - svn
 # - pipe
 # - none
@@ -262,6 +263,43 @@ export BM_PGSQL_FILETYPE="bzip2"
 # command line.)
 export BM_PGSQL_EXTRA_OPTIONS=""
 
+##############################################################
+# Backup method: mongodb
+#############################################################
+
+# This method is dedicated to MongoDB databases.
+# Enter here the list of databases to backup.
+# Wildcard: __ALL__ (will dump all the databases in one archive)
+export BM_MONGODB_DATABASES="__ALL__"
+
+# The user who is allowed to read every databases filled in BM_MYSQL_DATABASES
+# Typical sysbackup user can be created by the following command:
+# mongo --quiet --username=root admin
+# > use admin
+# > db.createUser({user:"sysbackup",pwd:"somesecret",roles:["backup","clusterAdmin","readAnyDatabase"]});
+# > quit()
+export BM_MONGODB_BACKUPLOGIN="sysbackup"
+
+# its password
+export BM_MONGODB_BACKUPPASS=""
+
+# the host where the database is
+export BM_MONGODB_HOST="localhost"
+
+# the port where MySQL listen to on the host
+export BM_MONGODB_PORT="27017"
+
+# Extra options to append to mysqldump
+# (take care to what you do; this will be silently added to the 
+# command line.)
+export BM_MONGODB_EXTRA_OPTIONS=""
+
+# Make separate backups of each database?
+export BM_MONGODB_SEPARATELY="true"
+
+# Specify DBs to exclude here (separated by space) 
+export BM_MONGODB_DBEXCLUDE=""
+
 ##############################################################
 # Backup method: svn
 #############################################################

lib/actions.sh

@@ -34,6 +34,9 @@ function make_archives()
         pgsql)
             backup_method_pgsql "$method"
         ;;
+        mongodb)
+            backup_method_mongodb "$method"
+        ;;
         tarball|tarball-incremental)
             backup_method_tarball "$method"
         ;;

lib/backup-methods.sh

@@ -1100,3 +1100,51 @@ function backup_method_pipe()
         index=$(($index + 1))
     done
 }
+
+function backup_method_mongodb()
+{
+    method="$1"
+    debug "backup_method_mongodb ($method)"
+
+    info "Using method \"\$method\"."
+    if [[ ! -x $mongodump ]]; then
+        error "The \"mongodb\" method is chosen, but \$mongodump is not found."
+    fi
+
+    # SECURITY CAVEAT: Because of https://jira.mongodb.org/browse/SERVER-5897 the password is disclosed thru ps during the backup
+    base_command="echo $BM_MONGODB_BACKUPPASS | $mongodump --authenticationDatabase=admin --quiet --username=$BM_MONGODB_BACKUPLOGIN --host=$BM_MONGODB_HOST:$BM_MONGODB_PORT $BM_MONGODB_EXTRA_OPTIONS --gzip --archive "
+    base_command="$mongodump --authenticationDatabase=admin --quiet --username=$BM_MONGODB_BACKUPLOGIN --host=$BM_MONGODB_HOST:$BM_MONGODB_PORT $BM_MONGODB_EXTRA_OPTIONS --gzip --archive --password=$BM_MONGODB_BACKUPPASS"
+
+        # get each DB name if backing up separately
+    if [ "$BM_MONGODB_DATABASES" = "__ALL__" ]; then
+        if [ "$BM_MONGODB_SEPARATELY" = "true" ]; then
+            if [[ ! -x $mongo ]]; then
+                error "Can't find "$mongo" but this is needed when backing up databases separately."
+            fi
+
+            DBNAMES=$(echo 'var _=db.auth("'${BM_MONGODB_BACKUPLOGIN}'","'${BM_MONGODB_BACKUPPASS}'");_=db.adminCommand({listDatabases:1,nameOnly:true}).databases.forEach(function(d){print(d.name);});' | $mongo --quiet --host $BM_MONGODB_HOST:$BM_MONGODB_PORT admin)
+
+            # if DBs are excluded
+            for exclude in $BM_MONGODB_DBEXCLUDE
+            do
+                DBNAMES=$(echo $DBNAMES | sed "s/\b$exclude\b//g")
+            done
+
+            BM_MONGODB_DATABASES=$DBNAMES
+        fi
+    fi
+
+    for database in $BM_MONGODB_DATABASES
+    do
+        if [[ "$database" = "__ALL__" ]]; then
+            file_to_create="$BM_REPOSITORY_ROOT/${BM_ARCHIVE_PREFIX}-all-mongodb-databases.$TODAY.archive.gz"
+            compress="none"
+            command="$base_command"
+        else
+            file_to_create="$BM_REPOSITORY_ROOT/${BM_ARCHIVE_PREFIX}-mongodb-${database}.$TODAY.archive.gz"
+            compress="none"
+            command="$base_command -d $database"
+        fi
+        __create_file_with_meta_command
+    done   
+}

lib/externals.sh

@@ -22,3 +22,5 @@ svnadmin=$(which svnadmin 2> /dev/null) || true
 logger=$(which logger 2> /dev/null) || true
 nice_bin=$(which nice 2> /dev/null) || true
 dd=$(which dd 2> /dev/null) || true
+mongodump=$(which mongodump 2> /dev/null) || true
+mongo=$(which mongo 2> /dev/null) || true