May 2019
Intermediate to advanced
442 pages
11h 36m
English
Content preview from Hands-On Infrastructure Monitoring with Prometheus
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File-based service discovery
Similar to the webhook notifier being the solution for integrating with unsupported notification systems (as explained in Chapter 11, Understanding and Extending Alertmanager), file-based integration provides the same type of solution for service discovery. It works by loading a list of valid JSON or YAML files, which in turn are used to generate the required targets and their labels. Reloading or restarting Prometheus after discovery files change is not necessary as they are watched for changes and automatically reread, depending on the operating system. Additionally, and as a fallback, the discovery files are also read on a schedule (every 5 minutes, by default).
The following JSON snippet shows a valid Prometheus ...
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