Enabling Assured Replication (Optional)

7.4.3 Enabling Assured Replication (Optional)

If you want to enable assured replication, perform the following steps:

Create a directory on the persistent volume as follows:

cd <persistent_volume>
mkdir oud-repl-config  
sudo chown -R 1000:0 oud-repl-config

For example:

cd /nfs_volumes/oudpv/
mkdir oud-repl-config   
sudo chown -R 1000:0 oud-repl-config

Add the following section in the oud-ds-rs-values-override.yaml:
```
replOUD:
  envVars:
    - name: post_dsreplication_dsconfig_3
      value: set-replication-domain-prop --domain-name ${baseDN} --advanced --set assured-type:safe-data --set assured-sd-level:2 --set assured-timeout:5s
    - name: execCmd_1
      value: /u01/oracle/user_projects/${OUD_INSTANCE_NAME}/OUD/bin/dsconfig --no-prompt --hostname ${sourceHost} --port ${adminConnectorPort} --bindDN "${rootUserDN}" --bindPasswordFile /u01/oracle/user_projects/${OUD_INSTANCE_NAME}/admin/rootPwdFile.txt  --trustAll set-replication-domain-prop --domain-name ${baseDN} --advanced --set assured-type:safe-data --set assured-sd-level:2 --set assured-timeout:5s --provider-name "Multimaster Synchronization"
configVolume:
  enabled: true
  type: networkstorage
  storageClassCreate: true
  storageClass: oud-config
  provisioner: kubernetes.io/is-default-class
  networkstorage:
    nfs:
      server: <IP_address>
      path: <persistent_volume>/oud-repl-config
  mountPath: /u01/oracle/config-input
```
The above will enable assured replication with assured type safe-data and assured-sd-level: 2.

Note:
The above will enable assured replication with assured type safe-data and assured-sd-level: 2. For more information on OUD Assured Replication, and other options and levels, see, Understanding the Oracle Unified Directory Replication Model.
The following caveats exist:
- post_dsreplication_dsconfig_N and execCmd_N should be a unique key - change the suffix accordingly. For more information on the environment variable and respective keys, see Environment Variables Used in the oud-ds-rs Helm Chart.
- For configVolume the storage can be networkstorage(nfs) or filesystem(hostPath) as the config volume path has to be accessible from all the Kubernetes nodes. Please note that block storage is not supported for configVolume.
- If you want to create your own storage class, set storageClassCreate: true. If storageClassCreate: true it is recommended to set storageClass to a value of your choice, and provisioner to the provisioner supported by your cloud vendor.
- If you have an existing storageClass that supports network storage, set storageClassCreate: false and storageClass to the NAME value returned in "kubectl get storageclass". Please note that the storage-class should not be the one you used for the persistent volume earlier. The provisioner can be ignored.