michaeljmarshall opened a new pull request, #20901:
URL: https://github.com/apache/pulsar/pull/20901
PIP:
Relates to: #20862
### Motivation
The primary motivation is to make it possible to configure Pulsar Connectors
in a secure, non-plaintext way. See the PIP for background and relevant details.
### Modifications
* Add `SecretsProvider#interpolateSecretForValue` method with a default that
maintains the current behavior.
* Override `interpolateSecretForValue` in the
`EnvironmentBasedSecretsProvider` so that configuration values formatted as
`${my-env-var}` will be replaced with the result of
`System.getEnv("my-env-var")`.
* Add a configuration to let operators enable configuration interpolation.
Default is false.
* Implement a recursive string interpolation method that will replace any
configuration value that the `interpolateSecretForValue` implementation
determines ought to be replaced.
### Verifying this change
Tests are added/modified.
### Documentation
- [x] `doc-required`
### Matching PR in forked repository
PR in forked repository: https://github.com/michaeljmarshall/pulsar/pull/55
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