Winery - finer postgresql user management
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User management -
winery-writer user -
supports writes to main winery database (to record shard creation and locking, as well as signature2shard mapping) -
can read all data -
database creation for shards
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winery-packer user -
supports writes to main winery database (to record packed shards) -
can read all data -
database deletion for (packed) shards
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winery-reader user -
read-only access to all databases
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