TLDR
This is the second episode in a series of blog posts about how to handle the expiration of Hashicorp Vault generated dynamic database credentials in a Spring application. Spring leaves your application without a database connection when these credentials expire. This time I would like to show you how to renew the database credentials at runtime for relational databases if you use HikariCP. The costs for the approach are: more implementation effort (only relational databases supported) more effort (stricter prerequisites) and more work (optional)via the TL;DR App
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