Larry McCay created KNOX-1126:
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             Summary: Templating of Params in Generated Topologies
                 Key: KNOX-1126
                 URL: https://issues.apache.org/jira/browse/KNOX-1126
             Project: Apache Knox
          Issue Type: Bug
          Components: Server
            Reporter: Larry McCay
             Fix For: 0.15.0


Param templating in shared provider config and possibly of service params will 
be useful in order to limit the proliferation of provider config files and 
descriptors due to params that are specific to the deployment environment.

For instance, SSOCookieProvider can be configured to use a particular public 
key for verifying the token signature. The public key is configured as a param 
with the PEM encoding minus the header and footer from the PEM file.

The ability to template this as a macro or placeholder in the provider config 
will allow for the ability to leverage the same provider config for multiple 
deployment environments where the value will be extracted from the gateway 
config or runtime environment (like for the public key from the signing 
keystore).

This will enable multiple clusters to discover the same provider config and 
descriptors from a single registry but still have deployment environment 
specific values.



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