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