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diff --git a/collectors/cgroups.plugin/integrations/kubernetes_containers.md b/collectors/cgroups.plugin/integrations/kubernetes_containers.md new file mode 100644 index 0000000000..c7092b211f --- /dev/null +++ b/collectors/cgroups.plugin/integrations/kubernetes_containers.md @@ -0,0 +1,180 @@ +<!--startmeta +custom_edit_url: "https://github.com/netdata/netdata/edit/master/collectors/cgroups.plugin/integrations/kubernetes_containers.md" +meta_yaml: "https://github.com/netdata/netdata/edit/master/collectors/cgroups.plugin/metadata.yaml" +sidebar_label: "Kubernetes Containers" +learn_status: "Published" +learn_rel_path: "Data Collection/Containers and VMs" +message: "DO NOT EDIT THIS FILE DIRECTLY, IT IS GENERATED BY THE COLLECTOR'S metadata.yaml FILE" +endmeta--> + +# Kubernetes Containers + +Plugin: cgroups.plugin +Module: /sys/fs/cgroup + +<img src="https://img.shields.io/badge/maintained%20by-Netdata-%2300ab44" /> + +## Overview + +Monitor Containers for performance, resource usage, and health status. + + + +This collector is supported on all platforms. + +This collector supports collecting metrics from multiple instances of this integration, including remote instances. + + +### Default Behavior + +#### Auto-Detection + +This integration doesn't support auto-detection. + +#### Limits + +The default configuration for this integration does not impose any limits on data collection. + +#### Performance Impact + +The default configuration for this integration is not expected to impose a significant performance impact on the system. + + +## Metrics + +Metrics grouped by *scope*. + +The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels. + + + +### Per k8s cgroup + + + +Labels: + +| Label | Description | +|:-----------|:----------------| +| k8s_namespace | TBD | +| k8s_pod_name | TBD | +| k8s_pod_uid | TBD | +| k8s_controller_kind | TBD | +| k8s_controller_name | TBD | +| k8s_node_name | TBD | +| k8s_container_name | TBD | +| k8s_container_id | TBD | +| k8s_kind | TBD | +| k8s_qos_class | TBD | +| k8s_cluster_id | TBD | + +Metrics: + +| Metric | Dimensions | Unit | +|:------|:----------|:----| +| k8s.cgroup.cpu_limit | used | percentage | +| k8s.cgroup.cpu | user, system | percentage | +| k8s.cgroup.cpu_per_core | a dimension per core | percentage | +| k8s.cgroup.throttled | throttled | percentage | +| k8s.cgroup.throttled_duration | duration | ms | +| k8s.cgroup.cpu_shares | shares | shares | +| k8s.cgroup.mem | cache, rss, swap, rss_huge, mapped_file | MiB | +| k8s.cgroup.writeback | dirty, writeback | MiB | +| k8s.cgroup.mem_activity | in, out | MiB/s | +| k8s.cgroup.pgfaults | pgfault, swap | MiB/s | +| k8s.cgroup.mem_usage | ram, swap | MiB | +| k8s.cgroup.mem_usage_limit | available, used | MiB | +| k8s.cgroup.mem_utilization | utilization | percentage | +| k8s.cgroup.mem_failcnt | failures | count | +| k8s.cgroup.io | read, write | KiB/s | +| k8s.cgroup.serviced_ops | read, write | operations/s | +| k8s.cgroup.throttle_io | read, write | KiB/s | +| k8s.cgroup.throttle_serviced_ops | read, write | operations/s | +| k8s.cgroup.queued_ops | read, write | operations | +| k8s.cgroup.merged_ops | read, write | operations/s | +| k8s.cgroup.cpu_some_pressure | some10, some60, some300 | percentage | +| k8s.cgroup.cpu_some_pressure_stall_time | time | ms | +| k8s.cgroup.cpu_full_pressure | some10, some60, some300 | percentage | +| k8s.cgroup.cpu_full_pressure_stall_time | time | ms | +| k8s.cgroup.memory_some_pressure | some10, some60, some300 | percentage | +| k8s.cgroup.memory_some_pressure_stall_time | time | ms | +| k8s.cgroup.memory_full_pressure | some10, some60, some300 | percentage | +| k8s.cgroup.memory_full_pressure_stall_time | time | ms | +| k8s.cgroup.io_some_pressure | some10, some60, some300 | percentage | +| k8s.cgroup.io_some_pressure_stall_time | time | ms | +| k8s.cgroup.io_full_pressure | some10, some60, some300 | percentage | +| k8s.cgroup.io_full_pressure_stall_time | time | ms | + +### Per k8s cgroup network device + + + +Labels: + +| Label | Description | +|:-----------|:----------------| +| device | TBD | +| interface_type | TBD | +| k8s_namespace | TBD | +| k8s_pod_name | TBD | +| k8s_pod_uid | TBD | +| k8s_controller_kind | TBD | +| k8s_controller_name | TBD | +| k8s_node_name | TBD | +| k8s_container_name | TBD | +| k8s_container_id | TBD | +| k8s_kind | TBD | +| k8s_qos_class | TBD | +| k8s_cluster_id | TBD | + +Metrics: + +| Metric | Dimensions | Unit | +|:------|:----------|:----| +| k8s.cgroup.net_net | received, sent | kilobits/s | +| k8s.cgroup.net_packets | received, sent, multicast | pps | +| k8s.cgroup.net_errors | inbound, outbound | errors/s | +| k8s.cgroup.net_drops | inbound, outbound | errors/s | +| k8s.cgroup.net_fifo | receive, transmit | errors/s | +| k8s.cgroup.net_compressed | receive, sent | pps | +| k8s.cgroup.net_events | frames, collisions, carrier | events/s | +| k8s.cgroup.net_operstate | up, down, notpresent, lowerlayerdown, testing, dormant, unknown | state | +| k8s.cgroup.net_carrier | up, down | state | +| k8s.cgroup.net_mtu | mtu | octets | + + + +## Alerts + + +The following alerts are available: + +| Alert name | On metric | Description | +|:------------|:----------|:------------| +| [ k8s_cgroup_10min_cpu_usage ](https://github.com/netdata/netdata/blob/master/health/health.d/cgroups.conf) | k8s.cgroup.cpu_limit | average cgroup CPU utilization over the last 10 minutes | +| [ k8s_cgroup_ram_in_use ](https://github.com/netdata/netdata/blob/master/health/health.d/cgroups.conf) | k8s.cgroup.mem_usage | cgroup memory utilization | +| [ k8s_cgroup_1m_received_packets_rate ](https://github.com/netdata/netdata/blob/master/health/health.d/cgroups.conf) | k8s.cgroup.net_packets | average number of packets received by the network interface ${label:device} over the last minute | +| [ k8s_cgroup_10s_received_packets_storm ](https://github.com/netdata/netdata/blob/master/health/health.d/cgroups.conf) | k8s.cgroup.net_packets | ratio of average number of received packets for the network interface ${label:device} over the last 10 seconds, compared to the rate over the last minute | + + +## Setup + +### Prerequisites + +No action required. + +### Configuration + +#### File + +There is no configuration file. +#### Options + + + +There are no configuration options. + +#### Examples +There are no configuration examples. + + |