Additional values.yaml additions
If you choose to use an external Vault instance, add the following to your
url: <protocol://host:port> # The URL to your Vault service.
transitPath: <transit-path> # Your Vault secrets transit path.
token: <token> # The access token for Vault.
Details on how to set up the external vault instance, get a token, and add the policy to the token can be found here: https://github.com/circleci/server-documentation/blob/master/release/2.19/Adding-External-Services-To-CircleCI-Server.pdf
The doc is specific to 2.19 but still applies to 3.x and 4.0.0
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