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feat(kubernetes): Add kubernetes input plugin 

closes #1774
This commit is contained in:
Jonathan Chauncey 2016-09-16 13:31:41 -04:00
parent a4e8f24b16
commit a12bd878e0
6 changed files with 893 additions and 0 deletions
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1
CHANGELOG.md
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@ -39,6 +39,7 @@ continue sending logs to /var/log/telegraf/telegraf.log.
- [#1686](https://github.com/influxdata/telegraf/pull/1686): Mesos input plugin: very high-cardinality mesos-task metrics removed.
- [#1838](https://github.com/influxdata/telegraf/pull/1838): Logging overhaul to centralize the logger & log levels, & provide a logfile config option.
- [#1700](https://github.com/influxdata/telegraf/pull/1700): HAProxy plugin socket glob matching.
- [#1847](https://github.com/influxdata/telegraf/pull/1847): Add Kubernetes plugin for retrieving pod metrics.
### Bugfixes

1
plugins/inputs/all/all.go
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@ -31,6 +31,7 @@ import (
_ "github.com/influxdata/telegraf/plugins/inputs/iptables"
_ "github.com/influxdata/telegraf/plugins/inputs/jolokia"
_ "github.com/influxdata/telegraf/plugins/inputs/kafka_consumer"
_ "github.com/influxdata/telegraf/plugins/inputs/kubernetes"
_ "github.com/influxdata/telegraf/plugins/inputs/leofs"
_ "github.com/influxdata/telegraf/plugins/inputs/logparser"
_ "github.com/influxdata/telegraf/plugins/inputs/lustre2"

265
plugins/inputs/kubernetes/README.md Normal file
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@ -0,0 +1,265 @@
# Kubernetes Input Plugin
**This plugin is experimental and may cause high cardinality issues with moderate to large Kubernetes deployments**
This input plugin talks to the kubelet api using the `/stats/summary` endpoint to gather metrics about the running pods and containers for a single host. It is assumed that this plugin is running as part of a `daemonset` within a kubernetes installation. This means that telegraf is running on every node within the cluster. Therefore, you should configure this plugin to talk to its locally running kubelet.
To find the ip address of the host you are running on you can issue a command like the following:
```
$ curl -s $API_URL/api/v1/namespaces/$POD_NAMESPACE/pods/$HOSTNAME --header "Authorization: Bearer $TOKEN" --insecure | jq -r '.status.hostIP'
```
In this case we used the downward API to pass in the `$POD_NAMESPACE` and `$HOSTNAME` is the hostname of the pod which is set by the kubernetes API.
## Summary Data
```json
{
"node": {
"nodeName": "node1",
"systemContainers": [
{
"name": "kubelet",
"startTime": "2016-08-25T18:46:52Z",
"cpu": {
"time": "2016-09-27T16:57:31Z",
"usageNanoCores": 56652446,
"usageCoreNanoSeconds": 101437561712262
},
"memory": {
"time": "2016-09-27T16:57:31Z",
"usageBytes": 62529536,
"workingSetBytes": 62349312,
"rssBytes": 47509504,
"pageFaults": 4769397409,
"majorPageFaults": 13
},
"rootfs": {
"availableBytes": 84379979776,
"capacityBytes": 105553100800
},
"logs": {
"availableBytes": 84379979776,
"capacityBytes": 105553100800
},
"userDefinedMetrics": null
},
{
"name": "bar",
"startTime": "2016-08-25T18:46:52Z",
"cpu": {
"time": "2016-09-27T16:57:31Z",
"usageNanoCores": 56652446,
"usageCoreNanoSeconds": 101437561712262
},
"memory": {
"time": "2016-09-27T16:57:31Z",
"usageBytes": 62529536,
"workingSetBytes": 62349312,
"rssBytes": 47509504,
"pageFaults": 4769397409,
"majorPageFaults": 13
},
"rootfs": {
"availableBytes": 84379979776,
"capacityBytes": 105553100800
},
"logs": {
"availableBytes": 84379979776,
"capacityBytes": 105553100800
},
"userDefinedMetrics": null
}
],
"startTime": "2016-08-25T18:46:52Z",
"cpu": {
"time": "2016-09-27T16:57:41Z",
"usageNanoCores": 576996212,
"usageCoreNanoSeconds": 774129887054161
},
"memory": {
"time": "2016-09-27T16:57:41Z",
"availableBytes": 10726387712,
"usageBytes": 12313182208,
"workingSetBytes": 5081538560,
"rssBytes": 35586048,
"pageFaults": 351742,
"majorPageFaults": 1236
},
"network": {
"time": "2016-09-27T16:57:41Z",
"rxBytes": 213281337459,
"rxErrors": 0,
"txBytes": 292869995684,
"txErrors": 0
},
"fs": {
"availableBytes": 84379979776,
"capacityBytes": 105553100800,
"usedBytes": 16754286592
},
"runtime": {
"imageFs": {
"availableBytes": 84379979776,
"capacityBytes": 105553100800,
"usedBytes": 5809371475
}
}
},
"pods": [
{
"podRef": {
"name": "foopod",
"namespace": "foons",
"uid": "6d305b06-8419-11e6-825c-42010af000ae"
},
"startTime": "2016-09-26T18:45:42Z",
"containers": [
{
"name": "foocontainer",
"startTime": "2016-09-26T18:46:43Z",
"cpu": {
"time": "2016-09-27T16:57:32Z",
"usageNanoCores": 846503,
"usageCoreNanoSeconds": 56507553554
},
"memory": {
"time": "2016-09-27T16:57:32Z",
"usageBytes": 30789632,
"workingSetBytes": 30789632,
"rssBytes": 30695424,
"pageFaults": 10761,
"majorPageFaults": 0
},
"rootfs": {
"availableBytes": 84379979776,
"capacityBytes": 105553100800,
"usedBytes": 57344
},
"logs": {
"availableBytes": 84379979776,
"capacityBytes": 105553100800,
"usedBytes": 24576
},
"userDefinedMetrics": null
}
],
"network": {
"time": "2016-09-27T16:57:34Z",
"rxBytes": 70749124,
"rxErrors": 0,
"txBytes": 47813506,
"txErrors": 0
},
"volume": [
{
"availableBytes": 7903948800,
"capacityBytes": 7903961088,
"usedBytes": 12288,
"name": "volume1"
},
{
"availableBytes": 7903956992,
"capacityBytes": 7903961088,
"usedBytes": 4096,
"name": "volume2"
},
{
"availableBytes": 7903948800,
"capacityBytes": 7903961088,
"usedBytes": 12288,
"name": "volume3"
},
{
"availableBytes": 7903952896,
"capacityBytes": 7903961088,
"usedBytes": 8192,
"name": "volume4"
}
]
}
]
}
```
### Daemonset YAML
```yaml
apiVersion: extensions/v1beta1
kind: DaemonSet
metadata:
name: telegraf
namespace: telegraf
spec:
template:
metadata:
labels:
app: telegraf
spec:
serviceAccount: telegraf
containers:
- name: telegraf
image: quay.io/org/image:latest
imagePullPolicy: IfNotPresent
env:
- name: POD_NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
- name: "HOST_PROC"
value: "/rootfs/proc"
- name: "HOST_SYS"
value: "/rootfs/sys"
volumeMounts:
- name: sysro
mountPath: /rootfs/sys
readOnly: true
- name: procro
mountPath: /rootfs/proc
readOnly: true
- name: varrunutmpro
mountPath: /var/run/utmp
readOnly: true
- name: logger-redis-creds
mountPath: /var/run/secrets/deis/redis/creds
volumes:
- name: sysro
hostPath:
path: /sys
- name: procro
hostPath:
path: /proc
- name: varrunutmpro
hostPath:
path: /var/run/utmp
```
### Line Protocol
#### kubernetes_pod_container
```
kubernetes_pod_container,host=ip-10-0-0-0.ec2.internal,
container_name=deis-controller,namespace=deis,
node_name=ip-10-0-0-0.ec2.internal, pod_name=deis-controller-3058870187-xazsr, cpu_usage_core_nanoseconds=2432835i,cpu_usage_nanocores=0i,
logsfs_avaialble_bytes=121128271872i,logsfs_capacity_bytes=153567944704i,
logsfs_used_bytes=20787200i,memory_major_page_faults=0i,
memory_page_faults=175i,memory_rss_bytes=0i,
memory_usage_bytes=0i,memory_working_set_bytes=0i,
rootfs_available_bytes=121128271872i,rootfs_capacity_bytes=153567944704i,
rootfs_used_bytes=1110016i 1476477530000000000
```
#### kubernetes_pod_volume
```
kubernetes_pod_volume,host=ip-10-0-0-0.ec2.internal,name=default-token-f7wts,
namespace=kube-system,node_name=ip-10-0-0-0.ec2.internal,
pod_name=kubernetes-dashboard-v1.1.1-t4x4t, available_bytes=8415240192i,
capacity_bytes=8415252480i,used_bytes=12288i 1476477530000000000
```
#### kubernetes_pod_network
```
kubernetes_pod_network,host=ip-10-0-0-0.ec2.internal,namespace=deis,
node_name=ip-10-0-0-0.ec2.internal,pod_name=deis-controller-3058870187-xazsr,
rx_bytes=120671099i,rx_errors=0i,
tx_bytes=102451983i,tx_errors=0i 1476477530000000000
```

244
plugins/inputs/kubernetes/kubernetes.go Normal file
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@ -0,0 +1,244 @@
package kubernetes
import (
"encoding/json"
"fmt"
"io/ioutil"
"net"
"net/http"
"net/url"
"sync"
"time"
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/internal"
"github.com/influxdata/telegraf/internal/errchan"
"github.com/influxdata/telegraf/plugins/inputs"
)
// Kubernetes represents the config object for the plugin
type Kubernetes struct {
URL string
// Bearer Token authorization file path
BearerToken string `toml:"bearer_token"`
// Path to CA file
SSLCA string `toml:"ssl_ca"`
// Path to host cert file
SSLCert string `toml:"ssl_cert"`
// Path to cert key file
SSLKey string `toml:"ssl_key"`
// Use SSL but skip chain & host verification
InsecureSkipVerify bool
}
var sampleConfig = `
## URL for the kubelet
url = "http://1.1.1.1:10255"
## Use bearer token for authorization
# bearer_token = /path/to/bearer/token
## Optional SSL Config
# ssl_ca = /path/to/cafile
# ssl_cert = /path/to/certfile
# ssl_key = /path/to/keyfile
## Use SSL but skip chain & host verification
# insecure_skip_verify = false
`
const (
summaryEndpoint = `%s/stats/summary`
)
func init() {
inputs.Add("kubernetes", func() telegraf.Input {
return &Kubernetes{}
})
}
//SampleConfig returns a sample config
func (k *Kubernetes) SampleConfig() string {
return sampleConfig
}
//Description returns the description of this plugin
func (k *Kubernetes) Description() string {
return "Read metrics from the kubernetes kubelet api"
}
//Gather collects kubernetes metrics from a given URL
func (k *Kubernetes) Gather(acc telegraf.Accumulator) error {
var wg sync.WaitGroup
errChan := errchan.New(1)
wg.Add(1)
go func(k *Kubernetes) {
defer wg.Done()
errChan.C <- k.gatherSummary(k.URL, acc)
}(k)
wg.Wait()
return errChan.Error()
}
func buildURL(endpoint string, base string) (*url.URL, error) {
u := fmt.Sprintf(endpoint, base)
addr, err := url.Parse(u)
if err != nil {
return nil, fmt.Errorf("Unable to parse address '%s': %s", u, err)
}
return addr, nil
}
func (k *Kubernetes) gatherSummary(baseURL string, acc telegraf.Accumulator) error {
url := fmt.Sprintf("%s/stats/summary", baseURL)
var req, err = http.NewRequest("GET", url, nil)
var token []byte
var resp *http.Response
tlsCfg, err := internal.GetTLSConfig(k.SSLCert, k.SSLKey, k.SSLCA, k.InsecureSkipVerify)
if err != nil {
return err
}
var rt http.RoundTripper = &http.Transport{
Dial: (&net.Dialer{
Timeout: 5 * time.Second,
KeepAlive: 30 * time.Second,
}).Dial,
TLSHandshakeTimeout: 5 * time.Second,
TLSClientConfig: tlsCfg,
ResponseHeaderTimeout: time.Duration(3 * time.Second),
DisableKeepAlives: false,
}
if k.BearerToken != "" {
token, err = ioutil.ReadFile(k.BearerToken)
if err != nil {
return err
}
req.Header.Set("Authorization", "Bearer "+string(token))
}
resp, err = rt.RoundTrip(req)
if err != nil {
return fmt.Errorf("error making HTTP request to %s: %s", url, err)
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return fmt.Errorf("%s returned HTTP status %s", url, resp.Status)
}
summaryMetrics := &SummaryMetrics{}
err = json.NewDecoder(resp.Body).Decode(summaryMetrics)
if err != nil {
return fmt.Errorf(`Error parsing response: %s`, err)
}
buildSystemContainerMetrics(summaryMetrics, acc)
buildNodeMetrics(summaryMetrics, acc)
buildPodMetrics(summaryMetrics, acc)
return nil
}
func buildSystemContainerMetrics(summaryMetrics *SummaryMetrics, acc telegraf.Accumulator) {
for _, container := range summaryMetrics.Node.SystemContainers {
tags := map[string]string{
"node_name": summaryMetrics.Node.NodeName,
"container_name": container.Name,
}
fields := make(map[string]interface{})
fields["cpu_usage_nanocores"] = container.CPU.UsageNanoCores
fields["cpu_usage_core_nanoseconds"] = container.CPU.UsageCoreNanoSeconds
fields["memory_usage_bytes"] = container.Memory.UsageBytes
fields["memory_working_set_bytes"] = container.Memory.WorkingSetBytes
fields["memory_rss_bytes"] = container.Memory.RSSBytes
fields["memory_page_faults"] = container.Memory.PageFaults
fields["memory_major_page_faults"] = container.Memory.MajorPageFaults
fields["rootfs_available_bytes"] = container.RootFS.AvailableBytes
fields["rootfs_capacity_bytes"] = container.RootFS.CapacityBytes
fields["logsfs_avaialble_bytes"] = container.LogsFS.AvailableBytes
fields["logsfs_capacity_bytes"] = container.LogsFS.CapacityBytes
acc.AddFields("kubernetes_system_container", fields, tags)
}
}
func buildNodeMetrics(summaryMetrics *SummaryMetrics, acc telegraf.Accumulator) {
tags := map[string]string{
"node_name": summaryMetrics.Node.NodeName,
}
fields := make(map[string]interface{})
fields["cpu_usage_nanocores"] = summaryMetrics.Node.CPU.UsageNanoCores
fields["cpu_usage_core_nanoseconds"] = summaryMetrics.Node.CPU.UsageCoreNanoSeconds
fields["memory_available_bytes"] = summaryMetrics.Node.Memory.AvailableBytes
fields["memory_usage_bytes"] = summaryMetrics.Node.Memory.UsageBytes
fields["memory_working_set_bytes"] = summaryMetrics.Node.Memory.WorkingSetBytes
fields["memory_rss_bytes"] = summaryMetrics.Node.Memory.RSSBytes
fields["memory_page_faults"] = summaryMetrics.Node.Memory.PageFaults
fields["memory_major_page_faults"] = summaryMetrics.Node.Memory.MajorPageFaults
fields["network_rx_bytes"] = summaryMetrics.Node.Network.RXBytes
fields["network_rx_errors"] = summaryMetrics.Node.Network.RXErrors
fields["network_tx_bytes"] = summaryMetrics.Node.Network.TXBytes
fields["network_tx_errors"] = summaryMetrics.Node.Network.TXErrors
fields["fs_available_bytes"] = summaryMetrics.Node.FileSystem.AvailableBytes
fields["fs_capacity_bytes"] = summaryMetrics.Node.FileSystem.CapacityBytes
fields["fs_used_bytes"] = summaryMetrics.Node.FileSystem.UsedBytes
fields["runtime_image_fs_available_bytes"] = summaryMetrics.Node.Runtime.ImageFileSystem.AvailableBytes
fields["runtime_image_fs_capacity_bytes"] = summaryMetrics.Node.Runtime.ImageFileSystem.CapacityBytes
fields["runtime_image_fs_used_bytes"] = summaryMetrics.Node.Runtime.ImageFileSystem.UsedBytes
acc.AddFields("kubernetes_node", fields, tags)
}
func buildPodMetrics(summaryMetrics *SummaryMetrics, acc telegraf.Accumulator) {
for _, pod := range summaryMetrics.Pods {
for _, container := range pod.Containers {
tags := map[string]string{
"node_name": summaryMetrics.Node.NodeName,
"namespace": pod.PodRef.Namespace,
"container_name": container.Name,
"pod_name": pod.PodRef.Name,
}
fields := make(map[string]interface{})
fields["cpu_usage_nanocores"] = container.CPU.UsageNanoCores
fields["cpu_usage_core_nanoseconds"] = container.CPU.UsageCoreNanoSeconds
fields["memory_usage_bytes"] = container.Memory.UsageBytes
fields["memory_working_set_bytes"] = container.Memory.WorkingSetBytes
fields["memory_rss_bytes"] = container.Memory.RSSBytes
fields["memory_page_faults"] = container.Memory.PageFaults
fields["memory_major_page_faults"] = container.Memory.MajorPageFaults
fields["rootfs_available_bytes"] = container.RootFS.AvailableBytes
fields["rootfs_capacity_bytes"] = container.RootFS.CapacityBytes
fields["rootfs_used_bytes"] = container.RootFS.UsedBytes
fields["logsfs_avaialble_bytes"] = container.LogsFS.AvailableBytes
fields["logsfs_capacity_bytes"] = container.LogsFS.CapacityBytes
fields["logsfs_used_bytes"] = container.LogsFS.UsedBytes
acc.AddFields("kubernetes_pod_container", fields, tags)
}
for _, volume := range pod.Volumes {
tags := map[string]string{
"node_name": summaryMetrics.Node.NodeName,
"pod_name": pod.PodRef.Name,
"namespace": pod.PodRef.Namespace,
"volume_name": volume.Name,
}
fields := make(map[string]interface{})
fields["available_bytes"] = volume.AvailableBytes
fields["capacity_bytes"] = volume.CapacityBytes
fields["used_bytes"] = volume.UsedBytes
acc.AddFields("kubernetes_pod_volume", fields, tags)
}
tags := map[string]string{
"node_name": summaryMetrics.Node.NodeName,
"pod_name": pod.PodRef.Name,
"namespace": pod.PodRef.Namespace,
}
fields := make(map[string]interface{})
fields["rx_bytes"] = pod.Network.RXBytes
fields["rx_errors"] = pod.Network.RXErrors
fields["tx_bytes"] = pod.Network.TXBytes
fields["tx_errors"] = pod.Network.TXErrors
acc.AddFields("kubernetes_pod_network", fields, tags)
}
}

93
plugins/inputs/kubernetes/kubernetes_metrics.go Normal file
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@ -0,0 +1,93 @@
package kubernetes
import "time"
// SummaryMetrics represents all the summary data about a paritcular node retrieved from a kubelet
type SummaryMetrics struct {
Node NodeMetrics `json:"node"`
Pods []PodMetrics `json:"pods"`
}
// NodeMetrics represents detailed information about a node
type NodeMetrics struct {
NodeName string `json:"nodeName"`
SystemContainers []ContainerMetrics `json:"systemContainers"`
StartTime time.Time `json:"startTime"`
CPU CPUMetrics `json:"cpu"`
Memory MemoryMetrics `json:"memory"`
Network NetworkMetrics `json:"network"`
FileSystem FileSystemMetrics `json:"fs"`
Runtime RuntimeMetrics `json:"runtime"`
}
// ContainerMetrics represents the metric data collect about a container from the kubelet
type ContainerMetrics struct {
Name string `json:"name"`
StartTime time.Time `json:"startTime"`
CPU CPUMetrics `json:"cpu"`
Memory MemoryMetrics `json:"memory"`
RootFS FileSystemMetrics `json:"rootfs"`
LogsFS FileSystemMetrics `json:"logs"`
}
// RuntimeMetrics contains metric data on the runtime of the system
type RuntimeMetrics struct {
ImageFileSystem FileSystemMetrics `json:"imageFs"`
}
// CPUMetrics represents the cpu usage data of a pod or node
type CPUMetrics struct {
Time time.Time `json:"time"`
UsageNanoCores int64 `json:"usageNanoCores"`
UsageCoreNanoSeconds int64 `json:"usageCoreNanoSeconds"`
}
// PodMetrics contains metric data on a given pod
type PodMetrics struct {
PodRef PodReference `json:"podRef"`
StartTime time.Time `json:"startTime"`
Containers []ContainerMetrics `json:"containers"`
Network NetworkMetrics `json:"network"`
Volumes []VolumeMetrics `json:"volume"`
}
// PodReference is how a pod is identified
type PodReference struct {
Name string `json:"name"`
Namespace string `json:"namespace"`
}
// MemoryMetrics represents the memory metrics for a pod or node
type MemoryMetrics struct {
Time time.Time `json:"time"`
AvailableBytes int64 `json:"availableBytes"`
UsageBytes int64 `json:"usageBytes"`
WorkingSetBytes int64 `json:"workingSetBytes"`
RSSBytes int64 `json:"rssBytes"`
PageFaults int64 `json:"pageFaults"`
MajorPageFaults int64 `json:"majorPageFaults"`
}
// FileSystemMetrics represents disk usage metrics for a pod or node
type FileSystemMetrics struct {
AvailableBytes int64 `json:"availableBytes"`
CapacityBytes int64 `json:"capacityBytes"`
UsedBytes int64 `json:"usedBytes"`
}
// NetworkMetrics represents network usage data for a pod or node
type NetworkMetrics struct {
Time time.Time `json:"time"`
RXBytes int64 `json:"rxBytes"`
RXErrors int64 `json:"rxErrors"`
TXBytes int64 `json:"txBytes"`
TXErrors int64 `json:"txErrors"`
}
// VolumeMetrics represents the disk usage data for a given volume
type VolumeMetrics struct {
Name string `json:"name"`
AvailableBytes int64 `json:"availableBytes"`
CapacityBytes int64 `json:"capacityBytes"`
UsedBytes int64 `json:"usedBytes"`
}

289
plugins/inputs/kubernetes/kubernetes_test.go Normal file
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@ -0,0 +1,289 @@
package kubernetes
import (
"fmt"
"net/http"
"net/http/httptest"
"testing"
"github.com/influxdata/telegraf/testutil"
"github.com/stretchr/testify/require"
)
func TestKubernetesStats(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
fmt.Fprintln(w, response)
}))
defer ts.Close()
k := &Kubernetes{
URL: ts.URL,
}
var acc testutil.Accumulator
err := k.Gather(&acc)
require.NoError(t, err)
fields := map[string]interface{}{
"cpu_usage_nanocores": int64(56652446),
"cpu_usage_core_nanoseconds": int64(101437561712262),
"memory_usage_bytes": int64(62529536),
"memory_working_set_bytes": int64(62349312),
"memory_rss_bytes": int64(47509504),
"memory_page_faults": int64(4769397409),
"memory_major_page_faults": int64(13),
"rootfs_available_bytes": int64(84379979776),
"rootfs_capacity_bytes": int64(105553100800),
"logsfs_avaialble_bytes": int64(84379979776),
"logsfs_capacity_bytes": int64(105553100800),
}
tags := map[string]string{
"node_name": "node1",
"container_name": "kubelet",
}
acc.AssertContainsTaggedFields(t, "kubernetes_system_container", fields, tags)
fields = map[string]interface{}{
"cpu_usage_nanocores": int64(576996212),
"cpu_usage_core_nanoseconds": int64(774129887054161),
"memory_usage_bytes": int64(12313182208),
"memory_working_set_bytes": int64(5081538560),
"memory_rss_bytes": int64(35586048),
"memory_page_faults": int64(351742),
"memory_major_page_faults": int64(1236),
"memory_available_bytes": int64(10726387712),
"network_rx_bytes": int64(213281337459),
"network_rx_errors": int64(0),
"network_tx_bytes": int64(292869995684),
"network_tx_errors": int64(0),
"fs_available_bytes": int64(84379979776),
"fs_capacity_bytes": int64(105553100800),
"fs_used_bytes": int64(16754286592),
"runtime_image_fs_available_bytes": int64(84379979776),
"runtime_image_fs_capacity_bytes": int64(105553100800),
"runtime_image_fs_used_bytes": int64(5809371475),
}
tags = map[string]string{
"node_name": "node1",
}
acc.AssertContainsTaggedFields(t, "kubernetes_node", fields, tags)
fields = map[string]interface{}{
"cpu_usage_nanocores": int64(846503),
"cpu_usage_core_nanoseconds": int64(56507553554),
"memory_usage_bytes": int64(30789632),
"memory_working_set_bytes": int64(30789632),
"memory_rss_bytes": int64(30695424),
"memory_page_faults": int64(10761),
"memory_major_page_faults": int64(0),
"rootfs_available_bytes": int64(84379979776),
"rootfs_capacity_bytes": int64(105553100800),
"rootfs_used_bytes": int64(57344),
"logsfs_avaialble_bytes": int64(84379979776),
"logsfs_capacity_bytes": int64(105553100800),
"logsfs_used_bytes": int64(24576),
}
tags = map[string]string{
"node_name": "node1",
"container_name": "foocontainer",
"namespace": "foons",
"pod_name": "foopod",
}
acc.AssertContainsTaggedFields(t, "kubernetes_pod_container", fields, tags)
fields = map[string]interface{}{
"available_bytes": int64(7903948800),
"capacity_bytes": int64(7903961088),
"used_bytes": int64(12288),
}
tags = map[string]string{
"node_name": "node1",
"volume_name": "volume1",
"namespace": "foons",
"pod_name": "foopod",
}
acc.AssertContainsTaggedFields(t, "kubernetes_pod_volume", fields, tags)
fields = map[string]interface{}{
"rx_bytes": int64(70749124),
"rx_errors": int64(0),
"tx_bytes": int64(47813506),
"tx_errors": int64(0),
}
tags = map[string]string{
"node_name": "node1",
"namespace": "foons",
"pod_name": "foopod",
}
acc.AssertContainsTaggedFields(t, "kubernetes_pod_network", fields, tags)
}
var response = `
{
"node": {
"nodeName": "node1",
"systemContainers": [
{
"name": "kubelet",
"startTime": "2016-08-25T18:46:52Z",
"cpu": {
"time": "2016-09-27T16:57:31Z",
"usageNanoCores": 56652446,
"usageCoreNanoSeconds": 101437561712262
},
"memory": {
"time": "2016-09-27T16:57:31Z",
"usageBytes": 62529536,
"workingSetBytes": 62349312,
"rssBytes": 47509504,
"pageFaults": 4769397409,
"majorPageFaults": 13
},
"rootfs": {
"availableBytes": 84379979776,
"capacityBytes": 105553100800
},
"logs": {
"availableBytes": 84379979776,
"capacityBytes": 105553100800
},
"userDefinedMetrics": null
},
{
"name": "bar",
"startTime": "2016-08-25T18:46:52Z",
"cpu": {
"time": "2016-09-27T16:57:31Z",
"usageNanoCores": 56652446,
"usageCoreNanoSeconds": 101437561712262
},
"memory": {
"time": "2016-09-27T16:57:31Z",
"usageBytes": 62529536,
"workingSetBytes": 62349312,
"rssBytes": 47509504,
"pageFaults": 4769397409,
"majorPageFaults": 13
},
"rootfs": {
"availableBytes": 84379979776,
"capacityBytes": 105553100800
},
"logs": {
"availableBytes": 84379979776,
"capacityBytes": 105553100800
},
"userDefinedMetrics": null
}
],
"startTime": "2016-08-25T18:46:52Z",
"cpu": {
"time": "2016-09-27T16:57:41Z",
"usageNanoCores": 576996212,
"usageCoreNanoSeconds": 774129887054161
},
"memory": {
"time": "2016-09-27T16:57:41Z",
"availableBytes": 10726387712,
"usageBytes": 12313182208,
"workingSetBytes": 5081538560,
"rssBytes": 35586048,
"pageFaults": 351742,
"majorPageFaults": 1236
},
"network": {
"time": "2016-09-27T16:57:41Z",
"rxBytes": 213281337459,
"rxErrors": 0,
"txBytes": 292869995684,
"txErrors": 0
},
"fs": {
"availableBytes": 84379979776,
"capacityBytes": 105553100800,
"usedBytes": 16754286592
},
"runtime": {
"imageFs": {
"availableBytes": 84379979776,
"capacityBytes": 105553100800,
"usedBytes": 5809371475
}
}
},
"pods": [
{
"podRef": {
"name": "foopod",
"namespace": "foons",
"uid": "6d305b06-8419-11e6-825c-42010af000ae"
},
"startTime": "2016-09-26T18:45:42Z",
"containers": [
{
"name": "foocontainer",
"startTime": "2016-09-26T18:46:43Z",
"cpu": {
"time": "2016-09-27T16:57:32Z",
"usageNanoCores": 846503,
"usageCoreNanoSeconds": 56507553554
},
"memory": {
"time": "2016-09-27T16:57:32Z",
"usageBytes": 30789632,
"workingSetBytes": 30789632,
"rssBytes": 30695424,
"pageFaults": 10761,
"majorPageFaults": 0
},
"rootfs": {
"availableBytes": 84379979776,
"capacityBytes": 105553100800,
"usedBytes": 57344
},
"logs": {
"availableBytes": 84379979776,
"capacityBytes": 105553100800,
"usedBytes": 24576
},
"userDefinedMetrics": null
}
],
"network": {
"time": "2016-09-27T16:57:34Z",
"rxBytes": 70749124,
"rxErrors": 0,
"txBytes": 47813506,
"txErrors": 0
},
"volume": [
{
"availableBytes": 7903948800,
"capacityBytes": 7903961088,
"usedBytes": 12288,
"name": "volume1"
},
{
"availableBytes": 7903956992,
"capacityBytes": 7903961088,
"usedBytes": 4096,
"name": "volume2"
},
{
"availableBytes": 7903948800,
"capacityBytes": 7903961088,
"usedBytes": 12288,
"name": "volume3"
},
{
"availableBytes": 7903952896,
"capacityBytes": 7903961088,
"usedBytes": 8192,
"name": "volume4"
}
]
}
]
}`