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reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["core-component","kubernetes","prometheus","prometheus-exporter"],"created_at":"2024-08-01T15:00:24.453Z","updated_at":"2026-05-10T19:56:49.702Z","avatar_url":"https://github.com/giantswarm.png","language":"Go","funding_links":[],"categories":["Go"],"sub_categories":[],"readme":"[![CircleCI](https://dl.circleci.com/status-badge/img/gh/giantswarm/net-exporter/tree/main.svg?style=svg)](https://dl.circleci.com/status-badge/redirect/gh/giantswarm/net-exporter/tree/main)\n[![Go Report Card](https://goreportcard.com/badge/github.com/giantswarm/net-exporter)](https://goreportcard.com/report/github.com/giantswarm/net-exporter)\n\n# net-exporter\n\nnet-exporter is a Prometheus exporter for exposing network information in Kubernetes clusters.\nIt is packaged as a Helm chart.\n\nnet-exporter runs as a Kubernetes Daemonset. This is to allow for intra-pod network calls,\nto determine network latency.\n\n## How to build\n\nBuild it using the standard `go build` command.\n\n```bash\ngo build github.com/giantswarm/net-exporter\n```\n\n## Deployment\n\n* Managed by [app-operator].\n* Production releases are stored in the [default-catalog].\n* WIP releases are stored in the [default-test-catalog].\n\n## Installing the Chart\n\nTo install the chart locally:\n\n```bash\n$ git clone https://github.com/giantswarm/net-exporter.git\n$ cd net-exporter\n$ helm install helm/net-exporter\n```\n\nProvide a custom `values.yaml`:\n\n```bash\n$ helm install net-exporter -f values.yaml\n```\n\n## Changes to Charts\n\nAt the current stage under [helm](./helm), there are two charts. The [net-exporter](./helm/net-exporter) is pushed to the App Catalog. The [net-exporter-chart](./helm/net-exporter-chart) is pushed to the Quay `appr` repo.\n\nIt is **important** that they are kept in sync.\n\nWe have this differentiation in place because in our Control Planes, we don't use the app-operator to deploy.\n\n## Release Process\n\nCurrently only members of the Giant Swarm organization can create releases for this project.\nFor up to date steps, please refer to internal docs here: https://intranet.giantswarm.io/docs/dev-and-releng/how-to-release-a-project/\n\n\n## Collectors\nAll Collectors are enabled by default.\n\nName | Description\n-----|-------------\ndns | Exposes DNS latency statistics. Performs host lookups, exposing the time taken per host.\nnetwork | Exposes network latency statistics. Performs dials to the other net-exporter Pods, exposing the time taken per host.\n\n## Metrics\n\nName | Description\n-----|------------\n`dns_latency_seconds_bucket` | A Prometheus Histogram of DNS resolution latency. See also `dns_latency_seconds_count` and `dns_latency_seconds_sum`.\n`dns_resolve_error_total` | The total number of errors encountered resolving DNS.\n`dns_error_total` | The total number of internal errors encountered testing DNS resolution.\n`network_latency_seconds_bucket` | A Prometheus Histogram of network latency. See also `network_latency_seconds_count` and `network_latency_seconds_sum`.\n`network_dial_error_total` | The total number of errors encountered dialing other hosts.\n`network_error_total` | The total number of internal errors encountered testing network latency.\n\nFor example (some labels ommited for clarity):\n```\ndns_latency_seconds_bucket{instance=\"192.168.120.239:8000\", host=\"kubernetes.default.svc.cluster.local\", le=\"0.008\"} | 7\n```\nHere, we expose the latency for the specific instance to resolve the dns host.\n\n```\nnetwork_latency_seconds_bucket{instance=\"192.168.120.239:8000\", host=\"192.168.120.239:8000\", le=\"0.004\"} | 28\n```\nHere, we expose the latency for the specific instance to resolve another instance (specifically, the net-exporter pod, labeled as host).\n\n## Contact\n\n- Mailing list: [giantswarm](https://groups.google.com/forum/!forum/giantswarm)\n- IRC: #[giantswarm](irc://irc.freenode.org:6667/#giantswarm) on freenode.org\n- Bugs: [issues](https://github.com/giantswarm/net-exporter/issues)\n\n## Contributing \u0026 Reporting Bugs\n\nSee [CONTRIBUTING](CONTRIBUTING.md) for details on submitting patches, the\ncontribution workflow as well as reporting bugs.\n\n## License\n\nnet-exporter is under the Apache 2.0 license. 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