This repository hosts a serialized MapDB database containing the relations between the Keccak256 hashes of the stored contract keys and its corresponding contract key. This is intented to use only during certain time while people using the version 0.6.2 of the RSK node migrates to using the 1.0.0 version.
If you have an RSK node 1.0.0 sync'd from scratch, you can generate this file easily. We have created a simple Dockerfile for this, which you should run passing two volumes, one pointing to the mentioned database and another for where you want it to generete the file. For example:
$ docker build -t migration .
$ docker run -v ~/.rsk/mainnet/database:/database -v ~/output:/output migration