1
votes

Is there any tools/way to get CPU, MEM, NET metrics of PODs. Other than below links, is there any tools available

UPDATE1

Tried launch POD with yaml file as they mentioned in blog. Installed go lang with GOPATH & GOROOT

ubuntu@ip-172-:~$ kubectl create -f prometheus.yaml 
panic: interface conversion: interface {} is []interface {}, not map[string]interface {}

goroutine 1 [running]:
k8s.io/kubernetes/pkg/kubectl/cmd/util/openapi/validation.getObjectKind(0x14dcb20, 0xc420c56480, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffff01, 0xc420f6bca0)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/pkg/kubectl/cmd/util/openapi/validation/validation.go:111 +0x539
k8s.io/kubernetes/pkg/kubectl/cmd/util/openapi/validation.(*SchemaValidation).ValidateBytes(0xc4207b01d0, 0xc420b3ca80, 0x16c, 0x180, 0xc420b51628, 0x4ed384)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/pkg/kubectl/cmd/util/openapi/validation/validation.go:49 +0x8f
k8s.io/kubernetes/pkg/kubectl/validation.ConjunctiveSchema.ValidateBytes(0xc42073cba0, 0x2, 0x2, 0xc420b3ca80, 0x16c, 0x180, 0x4ed029, 0xc420b3ca80)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/pkg/kubectl/validation/schema.go:130 +0x9a
k8s.io/kubernetes/pkg/kubectl/validation.(*ConjunctiveSchema).ValidateBytes(0xc42073cbc0, 0xc420b3ca80, 0x16c, 0x180, 0xc420b51700, 0x443693)
    <autogenerated>:3 +0x7d
k8s.io/kubernetes/pkg/kubectl/resource.ValidateSchema(0xc420b3ca80, 0x16c, 0x180, 0x2183f80, 0xc42073cbc0, 0x20, 0xc420b51700)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/pkg/kubectl/resource/visitor.go:222 +0x68
k8s.io/kubernetes/pkg/kubectl/resource.(*StreamVisitor).Visit(0xc420c2eb00, 0xc420c3d440, 0x218a000, 0xc420c3d4a0)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/pkg/kubectl/resource/visitor.go:543 +0x269
k8s.io/kubernetes/pkg/kubectl/resource.(*FileVisitor).Visit(0xc420c3d2c0, 0xc420c3d440, 0x0, 0x0)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/pkg/kubectl/resource/visitor.go:502 +0x181
k8s.io/kubernetes/pkg/kubectl/resource.EagerVisitorList.Visit(0xc420f6bc30, 0x1, 0x1, 0xc420903c50, 0x1, 0xc420903c50)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/pkg/kubectl/resource/visitor.go:211 +0x100
k8s.io/kubernetes/pkg/kubectl/resource.(*EagerVisitorList).Visit(0xc420c3d360, 0xc420903c50, 0x7ff854222000, 0x0)
    <autogenerated>:115 +0x69
k8s.io/kubernetes/pkg/kubectl/resource.FlattenListVisitor.Visit(0x2183d00, 0xc420c3d360, 0xc420c2eac0, 0xc420c2eb40, 0xc420c3d401, 0xc420c2eb40)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/pkg/kubectl/resource/visitor.go:417 +0xa3
k8s.io/kubernetes/pkg/kubectl/resource.(*FlattenListVisitor).Visit(0xc420c3d380, 0xc420c2eb40, 0x18, 0x18)
    <autogenerated>:130 +0x69
k8s.io/kubernetes/pkg/kubectl/resource.DecoratedVisitor.Visit(0x2183d80, 0xc420c3d380, 0xc420c3d3c0, 0x3, 0x4, 0xc420c3d400, 0xc420386901, 0xc420c3d400)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/pkg/kubectl/resource/visitor.go:325 +0xd8
k8s.io/kubernetes/pkg/kubectl/resource.(*DecoratedVisitor).Visit(0xc420903c20, 0xc420c3d400, 0x151b920, 0xc420f6bc60)
    <autogenerated>:153 +0x73
k8s.io/kubernetes/pkg/kubectl/resource.ContinueOnErrorVisitor.Visit(0x2183c80, 0xc420903c20, 0xc420c370e0, 0x7ff854222000, 0x0)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/pkg/kubectl/resource/visitor.go:352 +0xf1
k8s.io/kubernetes/pkg/kubectl/resource.(*ContinueOnErrorVisitor).Visit(0xc420f6bc50, 0xc420c370e0, 0x40f3f8, 0x60)
    <autogenerated>:144 +0x60
k8s.io/kubernetes/pkg/kubectl/resource.(*Result).Visit(0xc4202c23f0, 0xc420c370e0, 0x6, 0x0)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/pkg/kubectl/resource/result.go:95 +0x62
k8s.io/kubernetes/pkg/kubectl/cmd.RunCreate(0x21acd60, 0xc420320e40, 0xc42029d440, 0x2182e40, 0xc42000c018, 0x2182e40, 0xc42000c020, 0xc420173000, 0x176f608, 0x4)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/pkg/kubectl/cmd/create.go:187 +0x4a8
k8s.io/kubernetes/pkg/kubectl/cmd.NewCmdCreate.func1(0xc42029d440, 0xc4202aa580, 0x0, 0x2)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/pkg/kubectl/cmd/create.go:73 +0x17f
k8s.io/kubernetes/vendor/github.com/spf13/cobra.(*Command).execute(0xc42029d440, 0xc4202aa080, 0x2, 0x2, 0xc42029d440, 0xc4202aa080)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/vendor/github.com/spf13/cobra/command.go:603 +0x22b
k8s.io/kubernetes/vendor/github.com/spf13/cobra.(*Command).ExecuteC(0xc420235b00, 0x8000102, 0x0, 0xffffffffffffffff)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/vendor/github.com/spf13/cobra/command.go:689 +0x339
k8s.io/kubernetes/vendor/github.com/spf13/cobra.(*Command).Execute(0xc420235b00, 0xc420320e40, 0x2182e00)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/vendor/github.com/spf13/cobra/command.go:648 +0x2b
k8s.io/kubernetes/cmd/kubectl/app.Run(0x0, 0x0)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/cmd/kubectl/app/kubectl.go:39 +0xd5
main.main()
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/cmd/kubectl/kubectl.go:26 +0x22

prometheus.yaml

# This scrape config scrapes kubelets
- job_name: 'kubernetes-nodes'
  kubernetes_sd_configs:
    - role: node

  # couldn't get prometheus to validate the kublet cert for scraping, so don't bother for now
  tls_config:
    insecure_skip_verify: true
  bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token

  relabel_configs:
  - target_label: __scheme__
    replacement: https
  - source_labels: [__meta_kubernetes_node_label_kubernetes_io_hostname]
    target_label: instance
3
What is the content of that yaml?Robert
@Robert Please check. I have updated the questionVeerendra Kakumanu

3 Answers

1
votes
1
votes

I just want to give complete answer to support @brian-brazil's answer. cAvisor supports Prometheus.

  1. Just launch cAdvisor container as said in Readme

  2. Then curl the http://localhost:8080/metrics to check the metrics. You can configure the URL in Prometheus server to pull

0
votes

This is my setup and it gives you all the things you asked and for installing that stack you just need to run two lines. I have to mention that you also need a working metrics-server Wrong CPU usage values in Grafana + Prometheus