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64 lines
2.3 KiB
Markdown
64 lines
2.3 KiB
Markdown
# VMPodScrape
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The `VMPodScrape` CRD allows to declaratively define how a dynamic set of pods should be monitored.
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Use label selections to match pods for scraping. This allows an organization to introduce conventions
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for how metrics should be exposed. Following these conventions new services will be discovered automatically without
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need to reconfigure.
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`VMPodScrape` object generates part of [VMAgent](./vmagent.md) configuration with
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[kubernetes service discovery](https://docs.victoriametrics.com/sd_configs.html#kubernetes_sd_configs) role `pod` having specific labels and ports.
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It has various options for scraping configuration of target (with basic auth,tls access, by specific port name etc.).
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A `Pod` is a collection of one or more containers which can expose Prometheus metrics on a number of ports.
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The `VMPodScrape` object discovers pods and generates the relevant scraping configuration.
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The `PodMetricsEndpoints` section of the `VMPodScrapeSpec` is used to configure which ports of a pod are going to be
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scraped for metrics and with which parameters.
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Both `VMPodScrapes` and discovered targets may belong to any namespace. It is important for cross-namespace monitoring
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use cases, e.g. for meta-monitoring. Using the `namespaceSelector` of the `VMPodScrapeSpec` one can restrict the
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namespaces from which `Pods` are discovered from. To discover targets in all namespaces the `namespaceSelector` has to
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be empty:
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```yaml
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apiVersion: operator.victoriametrics.com/v1beta1
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kind: VMPodScrape
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metadata:
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name: example-pod-scrape
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spec:
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namespaceSelector:
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any: true
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```
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More information about selectors you can find in [this doc](./vmagent.md#scraping).
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## Specification
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You can see the full actual specification of the `VMPodScrape` resource in
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the **[API docs -> VMPodScrape](../api.md#vmpodscrape)**.
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Also, you can check out the [examples](#examples) section.
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## Migration from Prometheus
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The `VMPodScrape` CRD from VictoriaMetrics Operator is a drop-in replacement
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for the Prometheus `PodMonitor` from prometheus-operator.
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More details about migration from prometheus-operator you can read in [this doc](../migration.md).
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## Examples
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```yaml
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apiVersion: operator.victoriametrics.com/v1beta1
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kind: VMPodScrape
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metadata:
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name: example-pod-scrape
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spec:
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podMetricsEndpoints:
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- port: web
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scheme: http
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selector:
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matchLabels:
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owner: dev
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```
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