88 lines
2.1 KiB
Go
88 lines
2.1 KiB
Go
package kube_inventory
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import (
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"context"
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"github.com/ericchiang/k8s/apis/core/v1"
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"github.com/influxdata/telegraf"
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)
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func collectPods(ctx context.Context, acc telegraf.Accumulator, ki *KubernetesInventory) {
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list, err := ki.client.getPods(ctx)
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if err != nil {
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acc.AddError(err)
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return
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}
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for _, p := range list.Items {
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if err = ki.gatherPod(*p, acc); err != nil {
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acc.AddError(err)
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return
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}
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}
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}
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func (ki *KubernetesInventory) gatherPod(p v1.Pod, acc telegraf.Accumulator) error {
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if p.Metadata.CreationTimestamp.GetSeconds() == 0 && p.Metadata.CreationTimestamp.GetNanos() == 0 {
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return nil
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}
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for i, cs := range p.Status.ContainerStatuses {
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c := p.Spec.Containers[i]
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gatherPodContainer(*p.Spec.NodeName, p, *cs, *c, acc)
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}
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return nil
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}
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func gatherPodContainer(nodeName string, p v1.Pod, cs v1.ContainerStatus, c v1.Container, acc telegraf.Accumulator) {
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stateCode := 3
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state := "unknown"
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switch {
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case cs.State.Running != nil:
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stateCode = 0
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state = "running"
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case cs.State.Terminated != nil:
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stateCode = 1
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state = "terminated"
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case cs.State.Waiting != nil:
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stateCode = 2
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state = "waiting"
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}
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fields := map[string]interface{}{
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"restarts_total": cs.GetRestartCount(),
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"state_code": stateCode,
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"terminated_reason": cs.State.Terminated.GetReason(),
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}
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tags := map[string]string{
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"container_name": *c.Name,
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"namespace": *p.Metadata.Namespace,
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"node_name": *p.Spec.NodeName,
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"pod_name": *p.Metadata.Name,
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"state": state,
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}
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req := c.Resources.Requests
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lim := c.Resources.Limits
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for resourceName, val := range req {
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switch resourceName {
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case "cpu":
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fields["resource_requests_millicpu_units"] = convertQuantity(val.GetString_(), 1000)
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case "memory":
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fields["resource_requests_memory_bytes"] = convertQuantity(val.GetString_(), 1)
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}
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}
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for resourceName, val := range lim {
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switch resourceName {
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case "cpu":
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fields["resource_limits_millicpu_units"] = convertQuantity(val.GetString_(), 1000)
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case "memory":
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fields["resource_limits_memory_bytes"] = convertQuantity(val.GetString_(), 1)
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}
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}
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acc.AddFields(podContainerMeasurement, fields, tags)
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}
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