diff --git a/README.md b/README.md
index 7e3e366..b67c4f9 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,127 @@
 # eole-mariadb
 
-Début des travaux pour l'utilisation de mariadb
-dans Eole avec des fonctionalitées avancées du type
-mise en clustter
\ No newline at end of file
+Début des travaux pour l'utilisation de mariadb
+dans Eole avec des fonctionalitées avancées du type
+mise en clustter
+
+# How-to for Eole 2.6.2
+
+## Sources
+ * https://mariadb.com/kb/en/library/getting-started-with-mariadb-galera-cluster/
+ * https://mariadb.com/kb/en/library/installing-mariadb-deb-files/#installing-mariadb-galera-cluster-with-apt-get
+ * https://downloads.mariadb.org/mariadb/repositories/#mirror=ovh&distro=Ubuntu&distro_release=xenial--ubuntu_xenial&version=10.2
+ * http://galeracluster.com/documentation-webpages/?id=galera_parameters_0.8
+ * https://mariadb.com/kb/en/library/mariadb-galera-cluster-known-limitations/
+
+## Requirements 
+ * 2 eolebase 2.6.2 servers
+
+## Adding MariaDB (Galera) cluster repository (on each server)
+
+GenConfig (Mode Expert) -> Dépôt tiers :
+ * Libellé du dépôt : MariaDB
+ * Déclaration du dépôt :  deb [arch=amd64] http://mariadb.mirrors.ovh.net/MariaDB/repo/10.2/ubuntu xenial main
+ * Méthode de récupération de la clé publique du dépôt : serveur de clés
+ * URL du serveur de clés : hkp://keyserver.ubuntu.com:80
+ * Empreinte de la clé : 0xF1656F24C74CD1D8
+
+## Installing MariaDB software on the First Node aka "Node1"
+
+ * Query-Auto
+ * apt install mariadb-server
+
+
+### Secure MariaDB installation
+ * mysql_secure_installation
+
+### Configure the Master
+ * vim /etc/mysql/conf.d/galera.cnf
+```
+[mysqld]
+binlog_format=ROW
+default-storage-engine=innodb
+innodb_autoinc_lock_mode=2
+bind-address=0.0.0.0
+# Galera Provider Configuration
+wsrep_on=ON
+wsrep_provider=/usr/lib/galera/libgalera_smm.so
+# Galera Cluster Configuration
+wsrep_cluster_name="eole_cluster"
+wsrep_cluster_address="gcomm://<IP_NODE1>,<IP_NODE2>"
+
+# Galera Synchronization Configuration
+wsrep_sst_method=rsync
+
+# Galera Node Configuration
+wsrep_node_address="<IP_NODE1>"
+wsrep_node_name="Node1"
+```
+### Open Firewall ports
+ * 3306/tcp
+ * 4444/tcp
+ * 4567/tcp
+ * 4568/tcp
+ * 4567/udp
+
+### Bootstraping the new cluster
+ * systemctl stop mariadb
+ * galera_new_cluster
+
+### Check cluster size
+ * mysql -u root -p -e "show status like 'wsrep_cluster_size'"
+ ```
++--------------------+-------+
+| Variable_name      | Value |
++--------------------+-------+
+| wsrep_cluster_size | 1     |
++--------------------+-------+
+ ```
+
+## Installing MariaDB software in the Second node aka "Node2"
+ * Query-Auto
+ * apt install mariadb-server
+
+### Secure MariaDB installation
+ * mysql_secure_installation
+
+### Configure the Master
+ * vim /etc/mysql/conf.d/galera.cnf
+```
+[mysqld]
+binlog_format=ROW
+default-storage-engine=innodb
+innodb_autoinc_lock_mode=2
+bind-address=0.0.0.0
+# Galera Provider Configuration
+wsrep_on=ON
+wsrep_provider=/usr/lib/galera/libgalera_smm.so
+# Galera Cluster Configuration
+wsrep_cluster_name="eole_cluster"
+wsrep_cluster_address="gcomm://<IP_NODE1>,<IP_NODE2>"
+
+# Galera Synchronization Configuration
+wsrep_sst_method=rsync
+
+# Galera Node Configuration
+wsrep_node_address="<IP_NODE2>"
+wsrep_node_name="Node2"
+```
+### Open Firewall ports
+ * 3306/tcp
+ * 4444/tcp
+ * 4567/tcp
+ * 4568/tcp
+ * 4567/udp
+
+### Restart MariaDB
+ * systemctl restart mysql
+
+### Check Cluster Size
+ * mysql -u root -p -e "show status like 'wsrep_cluster_size'"
+```
++--------------------+-------+
+| Variable_name      | Value |
++--------------------+-------+
+| wsrep_cluster_size | 2     |
++--------------------+-------+
+```
diff --git a/dicos/25_bdd_server.xml b/dicos/25_bdd_server.xml
index e07c8a0..358aa7c 100644
--- a/dicos/25_bdd_server.xml
+++ b/dicos/25_bdd_server.xml
@@ -1,7 +1,36 @@
 <creole>
-	<files/>
+	<files>
+		<file filelist='dbCluster' name='/etc/mysql/conf.d/galera.cnf' rm='True' mkdir='True'>
+		<service_access service='mariadb'>
+			<port service_accesslist='mariadb' protocol='tcp'>3306</port>
+            <tcpwrapper service_accesslist='mariadb'>mariadb</tcpwrapper>
+		</service_access>
+		<service_access service='galera'>
+			<port service_accesslist='dbCluster' protocol='tcp'>4444</port>
+			<port service_accesslist='dbCluster' protocol='tcp'>4567</port>
+			<port service_accesslist='dbCluster' protocol='tcp'>4568</port>
+			<port service_accesslist='dbCluster' protocol='udp'>4567</port>
+            <tcpwrapper service_accesslist='mariadb'>mariadb</tcpwrapper>
+		</service_access>
+
+		<service_restriction service='mariadb'>
+           <ip interface='ifMariaDBLimit' interface_type="SymLinkOption" netmask='maskMariaDBLimit' netmask_type='SymLinkOption' ip_type='SymLinkOption'>ipMariaDBLimit</ip>
+        </service_restriction>
+
+		<service_restriction service='galera'>
+           <ip interface='ifDBCluster' interface_type="SymLinkOption" netmask='maskDBCluster' netmask_type='SymLinkOption' ip_type='SymLinkOption'>ipDBCluster</ip>
+        </service_restriction>
+	</files>
 	<variables>
+		<family name="Services">
+           <variable namle="dbEnable" type='oui/non' description='Activer le serveur de base de données MariaDB'>
+              <value>non</non>
+           </variable>
+		</family>
 		<family name="DataBase">
+			<variable name='dbEnableClustter' type='oui/non' description="Activer la mise en grappe MariaDB Galera ?">
+				<value>non</value>
+			</variable>
 			<variable name="dbCreateFixAdmin" type='oui/non' description="Créer des comptes admin mysql avec un mot de passe fixe"/>
 			<variable name="accName" type='string' description="Nom du compte" multi="True"/>
 			<variable name="accLimits" type='string' description="Limiter les accès des comptes">
@@ -9,30 +38,59 @@
 			</variable>
 			<variable name="accLimitTarget" type="string" description="Restriction d'accès à ces IP/noms d'hôtes (liste séparateur séparateur ',')" />
 		</family>
+		<family name="Database Cluster">
+			<variable name='ifDBCluster' type='string' description="Interface réseau dédiée à la grappe BDD"/>
+			<variable name='dbClusterMember' type='String' description="Membre de la grappe BDD"/>
+			<variable name='dbClusterMemberIP' type='ip' description="Adresse IP"/>
+		</family>
 		<separators>
 			<separator name='dbCreateFixAdmin'>Comptes d'administration supplémentaires</separator>
 		</separators>
 	</variables>
 	<constraints>
+		<check name='valid_enum' target='ifDBCluster'>
+			<param>['eth0', 'eth1', 'eth2', 'eth3', 'eth4']</param>
+		</check>
+
+		<group master='dbClusterMember'>
+			<slave>dbClusterMemeberIP</slave>
+		</group>
+
 		<check name='valid_enum' target='accLimits'>
 			<param>['Default','Custom']</param>
 		</check>
+
 		<group master='accName'>
 			<slave>accLimits</slave>
 			<slave>accLimitTarget</slave>
 		</group>
+
 		<fill name='calc_multi_condition' target='accLimitTarget'>
 			<param>Default</param>
 			<param type='eole' name='condition_1'>accLimits</param>
 			<param name='default_match'>Default</param>
 			<param name='mismatch'>""</param>
 		</fill>
+
 		<condition name='disabled_if_in' source="dbCreateFixAdmin">
 			<param>non</param>
 			<target type='variable'>accName</target>
 			<target type='variable'>accLimits</target>
 			<target type='variable'>accLimitTarget</target>
 		</condition>
+
+		<condition name='disabled_if_in' source="dbEnableCluster">
+			<param>non</param>
+			<target type='family'>Database Cluster</target>
+			<target type='service_accesslist'>dbCluster</target>
+		</condition>
+
+		<condition name='disabled_if_in' source="dbEnable">
+			<param>non</param>
+			<target type='family'>Database Cluster</target>
+			<target type='family'>Database</target>
+			<target type='service_accesslist'>dbCluster</target>
+		</condition>
 	</constraints>
 	<help/>
 </creole>