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  1. RHEL
  2. RHEL-101724

[RFE] Allow defining enabled PCP PMDAs with the metrics role

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      .`metrics` role supports enabling additional PCP PMDA

      With this update, the `rhel-system-roles` package adds the ‎`metrics_optional_domains` variable to the ‎`metrics` system role. A domain is a set of metrics managed by a Performance Metrics Domain Agent (PMDA), such as a database, specialized hardware, or an application. Use this variable to enable additional PMDAs. The role adds these PMDAs to the default set (for example, the kernel) and the PMDAs that the role manages explicitly (for example, SQL Server databases). As a result, users can enable the domains they require for their specific use cases, improving flexibility in data collection and monitoring.
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      .`metrics` role supports enabling additional PCP PMDA With this update, the `rhel-system-roles` package adds the ‎`metrics_optional_domains` variable to the ‎`metrics` system role. A domain is a set of metrics managed by a Performance Metrics Domain Agent (PMDA), such as a database, specialized hardware, or an application. Use this variable to enable additional PMDAs. The role adds these PMDAs to the default set (for example, the kernel) and the PMDAs that the role manages explicitly (for example, SQL Server databases). As a result, users can enable the domains they require for their specific use cases, improving flexibility in data collection and monitoring.
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      There are plenty of PCP PMDAs (agents) that could be enabled in various scenarios with the metrics role, for instance the Podman PMDA would be very helpful when many or most relevant components are running as containers.

      Currently, the metrics role does not allow passing through the pcp_optional_agents variable but only includes there the agents enabled with role options like metrics_from_postfix.

      Instead of adding a separate metric variable for every relevant or new PCP PMDA it would be helpful to allow defining a list of PMDAs the role should enable. Thanks.

              rmeggins@redhat.com Richard Megginson
              myllynen Marko Myllynen
              Richard Megginson Richard Megginson
              David Jez David Jez
              Malhar Jivrajani Malhar Jivrajani
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