all: typo fix: Kuberntes -> Kubernetes

README.md

@@ -1785,7 +1785,7 @@ Pass `-help` to VictoriaMetrics in order to see the list of supported command-li
   -promscrape.httpSDCheckInterval duration
      Interval for checking for changes in http endpoint service discovery. This works only if http_sd_configs is configured in '-promscrape.config' file. See https://prometheus.io/docs/prometheus/latest/configuration/configuration/#http_sd_config for details (default 1m0s)
   -promscrape.kubernetes.apiServerTimeout duration
-     How frequently to reload the full state from Kuberntes API server (default 30m0s)
+     How frequently to reload the full state from Kubernetes API server (default 30m0s)
   -promscrape.kubernetesSDCheckInterval duration
      Interval for checking for changes in Kubernetes API server. This works only if kubernetes_sd_configs is configured in '-promscrape.config' file. See https://prometheus.io/docs/prometheus/latest/configuration/configuration/#kubernetes_sd_config for details (default 30s)
   -promscrape.maxDroppedTargets int

app/vmagent/README.md

@@ -463,7 +463,7 @@ It may be useful to perform `vmagent` rolling update without any scrape loss.
   * Disabling staleness tracking with `-promscrape.noStaleMarkers` option. See [these docs](#prometheus-staleness-markers).
   * Enabling stream parsing mode if `vmagent` scrapes targets with millions of metrics per target. See [these docs](#stream-parsing-mode).
   * Reducing the number of output queues with `-remoteWrite.queues` command-line option.
-  * Reducing the amounts of RAM vmagent can use for in-memory buffering with `-memory.allowedPercent` or `-memory.allowedBytes` command-line option. Another option is to reduce memory limits in Docker and/or Kuberntes if `vmagent` runs under these systems.
+  * Reducing the amounts of RAM vmagent can use for in-memory buffering with `-memory.allowedPercent` or `-memory.allowedBytes` command-line option. Another option is to reduce memory limits in Docker and/or Kubernetes if `vmagent` runs under these systems.
   * Reducing the number of CPU cores vmagent can use by passing `GOMAXPROCS=N` environment variable to `vmagent`, where `N` is the desired limit on CPU cores. Another option is to reduce CPU limits in Docker or Kubernetes if `vmagent` runs under these systems.
   * Passing `-promscrape.dropOriginalLabels` command-line option to `vmagent`, so it drops `"discoveredLabels"` and `"droppedTargets"` lists at `/api/v1/targets` page. This reduces memory usage when scraping big number of targets at the cost of reduced debuggability for improperly configured per-target relabeling.
 
@@ -888,7 +888,7 @@ See the docs at https://docs.victoriametrics.com/vmagent.html .
   -promscrape.httpSDCheckInterval duration
      Interval for checking for changes in http endpoint service discovery. This works only if http_sd_configs is configured in '-promscrape.config' file. See https://prometheus.io/docs/prometheus/latest/configuration/configuration/#http_sd_config for details (default 1m0s)
   -promscrape.kubernetes.apiServerTimeout duration
-     How frequently to reload the full state from Kuberntes API server (default 30m0s)
+     How frequently to reload the full state from Kubernetes API server (default 30m0s)
   -promscrape.kubernetesSDCheckInterval duration
      Interval for checking for changes in Kubernetes API server. This works only if kubernetes_sd_configs is configured in '-promscrape.config' file. See https://prometheus.io/docs/prometheus/latest/configuration/configuration/#kubernetes_sd_config for details (default 30s)
   -promscrape.maxDroppedTargets int

docs/CHANGELOG.md

@@ -716,7 +716,7 @@ Released at 02-03-2021
   * `process_io_storage_read_bytes_total` - the number of bytes read from storage layer
   * `process_io_storage_written_bytes_total` - the number of bytes written to storage layer
 * FEATURE: vmagent: add ability to spread scrape targets among multiple `vmagent` instances. See [these docs](https://docs.victoriametrics.com/vmagent.html#scraping-big-number-of-targets) and [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1084) for details.
-* FEATURE: vmagent: use watch API for Kuberntes service discovery. This should reduce load on Kuberntes API server when it tracks big number of objects (for example, 10K pods). This should also reduce the time needed for k8s targets discovery. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1057) for details.
+* FEATURE: vmagent: use watch API for Kubernetes service discovery. This should reduce load on Kubernetes API server when it tracks big number of objects (for example, 10K pods). This should also reduce the time needed for k8s targets discovery. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1057) for details.
 * FEATURE: vmagent: export `vm_promscrape_target_relabel_duration_seconds` metric, which can be used for monitoring the time spend on relabeling for discovered targets.
 * FEATURE: vmagent: optimize [relabeling](https://docs.victoriametrics.com/vmagent.html#relabeling) performance for common cases.
 * FEATURE: add `increase_pure(m[d])` function to MetricsQL. It works the same as `increase(m[d])` except of various edge cases. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/962) for details.

docs/README.md

@@ -1785,7 +1785,7 @@ Pass `-help` to VictoriaMetrics in order to see the list of supported command-li
   -promscrape.httpSDCheckInterval duration
      Interval for checking for changes in http endpoint service discovery. This works only if http_sd_configs is configured in '-promscrape.config' file. See https://prometheus.io/docs/prometheus/latest/configuration/configuration/#http_sd_config for details (default 1m0s)
   -promscrape.kubernetes.apiServerTimeout duration
-     How frequently to reload the full state from Kuberntes API server (default 30m0s)
+     How frequently to reload the full state from Kubernetes API server (default 30m0s)
   -promscrape.kubernetesSDCheckInterval duration
      Interval for checking for changes in Kubernetes API server. This works only if kubernetes_sd_configs is configured in '-promscrape.config' file. See https://prometheus.io/docs/prometheus/latest/configuration/configuration/#kubernetes_sd_config for details (default 30s)
   -promscrape.maxDroppedTargets int

docs/Single-server-VictoriaMetrics.md

@@ -1789,7 +1789,7 @@ Pass `-help` to VictoriaMetrics in order to see the list of supported command-li
   -promscrape.httpSDCheckInterval duration
      Interval for checking for changes in http endpoint service discovery. This works only if http_sd_configs is configured in '-promscrape.config' file. See https://prometheus.io/docs/prometheus/latest/configuration/configuration/#http_sd_config for details (default 1m0s)
   -promscrape.kubernetes.apiServerTimeout duration
-     How frequently to reload the full state from Kuberntes API server (default 30m0s)
+     How frequently to reload the full state from Kubernetes API server (default 30m0s)
   -promscrape.kubernetesSDCheckInterval duration
      Interval for checking for changes in Kubernetes API server. This works only if kubernetes_sd_configs is configured in '-promscrape.config' file. See https://prometheus.io/docs/prometheus/latest/configuration/configuration/#kubernetes_sd_config for details (default 30s)
   -promscrape.maxDroppedTargets int

docs/vmagent.md

@@ -467,7 +467,7 @@ It may be useful to perform `vmagent` rolling update without any scrape loss.
   * Disabling staleness tracking with `-promscrape.noStaleMarkers` option. See [these docs](#prometheus-staleness-markers).
   * Enabling stream parsing mode if `vmagent` scrapes targets with millions of metrics per target. See [these docs](#stream-parsing-mode).
   * Reducing the number of output queues with `-remoteWrite.queues` command-line option.
-  * Reducing the amounts of RAM vmagent can use for in-memory buffering with `-memory.allowedPercent` or `-memory.allowedBytes` command-line option. Another option is to reduce memory limits in Docker and/or Kuberntes if `vmagent` runs under these systems.
+  * Reducing the amounts of RAM vmagent can use for in-memory buffering with `-memory.allowedPercent` or `-memory.allowedBytes` command-line option. Another option is to reduce memory limits in Docker and/or Kubernetes if `vmagent` runs under these systems.
   * Reducing the number of CPU cores vmagent can use by passing `GOMAXPROCS=N` environment variable to `vmagent`, where `N` is the desired limit on CPU cores. Another option is to reduce CPU limits in Docker or Kubernetes if `vmagent` runs under these systems.
   * Passing `-promscrape.dropOriginalLabels` command-line option to `vmagent`, so it drops `"discoveredLabels"` and `"droppedTargets"` lists at `/api/v1/targets` page. This reduces memory usage when scraping big number of targets at the cost of reduced debuggability for improperly configured per-target relabeling.
 
@@ -892,7 +892,7 @@ See the docs at https://docs.victoriametrics.com/vmagent.html .
   -promscrape.httpSDCheckInterval duration
      Interval for checking for changes in http endpoint service discovery. This works only if http_sd_configs is configured in '-promscrape.config' file. See https://prometheus.io/docs/prometheus/latest/configuration/configuration/#http_sd_config for details (default 1m0s)
   -promscrape.kubernetes.apiServerTimeout duration
-     How frequently to reload the full state from Kuberntes API server (default 30m0s)
+     How frequently to reload the full state from Kubernetes API server (default 30m0s)
   -promscrape.kubernetesSDCheckInterval duration
      Interval for checking for changes in Kubernetes API server. This works only if kubernetes_sd_configs is configured in '-promscrape.config' file. See https://prometheus.io/docs/prometheus/latest/configuration/configuration/#kubernetes_sd_config for details (default 30s)
   -promscrape.maxDroppedTargets int

lib/promscrape/discovery/kubernetes/api_watcher.go

@@ -21,7 +21,7 @@ import (
 	"github.com/VictoriaMetrics/metrics"
 )
 
-var apiServerTimeout = flag.Duration("promscrape.kubernetes.apiServerTimeout", 30*time.Minute, "How frequently to reload the full state from Kuberntes API server")
+var apiServerTimeout = flag.Duration("promscrape.kubernetes.apiServerTimeout", 30*time.Minute, "How frequently to reload the full state from Kubernetes API server")
 
 // WatchEvent is a watch event returned from API server endpoints if `watch=1` query arg is set.
 //
@@ -45,7 +45,7 @@ type parseObjectFunc func(data []byte) (object, error)
 // parseObjectListFunc must parse objectList from the given r.
 type parseObjectListFunc func(r io.Reader) (map[string]object, ListMeta, error)
 
-// apiWatcher is used for watching for Kuberntes object changes and caching their latest states.
+// apiWatcher is used for watching for Kubernetes object changes and caching their latest states.
 type apiWatcher struct {
 	role string
 
@@ -597,7 +597,7 @@ func (uw *urlWatcher) watchForUpdates() {
 	}
 }
 
-// readObjectUpdateStream reads Kuberntes watch events from r and updates locally cached objects according to the received events.
+// readObjectUpdateStream reads Kubernetes watch events from r and updates locally cached objects according to the received events.
 func (uw *urlWatcher) readObjectUpdateStream(r io.Reader) error {
 	d := json.NewDecoder(r)
 	var we WatchEvent