[GitHub] [pulsar-helm-chart] michaeljmarshall commented on issue #78: Metrics from pulsar proxy are not scraped because /metrics when authentication is enabled

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michaeljmarshall commented on issue #78:
URL: https://github.com/apache/pulsar-helm-chart/issues/78#issuecomment-1110029405

   > > ```yaml
   > >         PULSAR_PREFIX_authenticateMetricsEndpoint: "false"
   > > ```
   > 
   > I need to understand, is this parameter is working? Or did you just provide the suggestion for the solution?
   > 
   > I'm also facing this issue now, and love to hear any other way to fix the issue.
   
   Yes, this is the correct solution. Whenever a configuration is not present in the `conf/proxy.conf` (or any of the `.conf` files), you must add the `PULSAR_PREFIX_` to the start of the configuration value. By doing so, the configuration script will map the suffix into the `.conf` file.
   
   https://github.com/apache/pulsar/blob/0c694cfdc9b11f915f1da86260ad3655c2e99a35/docker/pulsar/scripts/apply-config-from-env.py#L37
   
   Note that in the case of functions, the prefix is actually `PF_`. Note that the worker config files are `.yml`.
   
   https://github.com/apache/pulsar/blob/0c694cfdc9b11f915f1da86260ad3655c2e99a35/docker/pulsar/scripts/gen-yml-from-env.py#L55
   
   You can see here that we run the `bin/apply-config-from-env.py` script before starting the proxy process.
   
   https://github.com/apache/pulsar-helm-chart/blob/cee3fcfe569e2a8cc87fb5f8046b29f47f1d4e39/charts/pulsar/templates/proxy-statefulset.yaml#L184
   
   If you'd like to avoid adding the `PULSAR_PREFIX_`, the best solution is to open a PR in the apache/pulsar project and add the config, in this case `authenticateMetricsEndpoint` to the proxy conf. Then, a prefix won't be needed for this specific configuration.


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