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Nexus3 Disaster Recovery (N3DR).

Download all artifacts at once or migrate automatically from Nexus to Nexus.

Although theNexus backup and restore documentationindicates that one could backup and restore Nexus, the data seems not to berestored completely as 500 errors occur when an artifact is downloaded from theUI after restore. It could also be possible that some steps were not issued asthey have should been. Apart from that, the restore is capable of restoring theNexus configuration.

N3DR excludes the backup of group repositories and is able to backup variousrepositories, configure them, restore artifacts or migrate them to anotherNexus3 server. Table 1 indicates what is supported by N3DR.

Note: uploads to proxy repositories are not supported by Nexus3 itself. As aworkaround one could create a hosted repository in Nexus and upload the backedup proxy content to it.

The aims of the n3dr tool are:

• to backup artifacts from a certain Nexus3 repository.
• to migrate and/or restore them to another Nexus3 server.
• configuration-as-code (cac).

Table 1: Overview of Nexus3 types that can be downloaded, uploaded and/orconfigured by N3DR.

• docker
• maven2
• rubygems

• snap