Werk #16016: mk_postgres: addition of option to specify instance name

Komponente Core & setup
Titel mk_postgres: addition of option to specify instance name
Datum 02.08.2023
Level Kleine Änderung
Klasse Bugfix
Kompatibilität Kompatibel - benötigt kein manuelles Eingreifen
Checkmk versions & editions
2.3.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.2.0p8 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.1.0p33 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

The migration of the postgres_instances check plugin to the new CheckAPI broke the discovery mechanism of the plugin as it previously allowed an instance to have no specified name. This werk introduces the option to specify an explicit name for an instance. The mk_postgres plugin is adjusted accordingly and raises an error if the name cannot be inferred from .env file. To benefit from this change and also resolve the error, the user should adjust or bake the config file again and roll out the newly adapted plugin.

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