I ask myself the same question. I guess with this tool now is just easier. From their docs :
> “ We are excited to announce a new Kubernetes integration that enables applications with no native HashiCorp Vault logic built-in to leverage static and dynamic secrets sourced from Vault.
Applications need only concern themselves with finding a secret at a filesystem path, rather than managing tokens, connecting to an external API, or other mechanisms for direct interaction with Vault.”
> “ We are excited to announce a new Kubernetes integration that enables applications with no native HashiCorp Vault logic built-in to leverage static and dynamic secrets sourced from Vault.
Applications need only concern themselves with finding a secret at a filesystem path, rather than managing tokens, connecting to an external API, or other mechanisms for direct interaction with Vault.”