Fix race condition by memoizing Tempfile objects
#461
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Previously, the `certificate` and `private_key` methods created `Tempfile` objects without maintaining references after the methods exited. This allowed the Ruby garbage collector to collect and delete these temporary files at any time. As a result, there was a race condition where the `keytool` binary could fail with a `java.io.FileNotFoundException` if the temporary files were deleted before `keytool` accessed them. This commit resolves the issue by memoizing the `Tempfile` objects using instance variables (`@temp_certificate_file` and `@temp_private_key_file`). By caching these objects, we prevent them from being garbage collected prematurely, ensuring that the temporary files remain available for the duration of the provider instance. Fixes puppetlabs#425
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Previously, the
certificateandprivate_keymethods createdTempfileobjects without maintaining references after the methods exited. This allowed the Ruby garbage collector to collect and delete these temporary files at any time. As a result, there was a race condition where thekeytoolbinary could fail with ajava.io.FileNotFoundExceptionif the temporary files were deleted beforekeytoolaccessed them.This commit resolves the issue by memoizing the
Tempfileobjects using instance variables (@temp_certificate_fileand@temp_private_key_file). By caching these objects, we prevent them from being garbage collected prematurely, ensuring that the temporary files remain available for the duration of the provider instance.Fixes #425