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kubernetes_test.go
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kubernetes_test.go
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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 := acc.GatherError(k.Gather)
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{}{
"cpu_usage_nanocores": int64(846503),
"cpu_usage_core_nanoseconds": int64(56507553554),
"memory_usage_bytes": int64(0),
"memory_working_set_bytes": int64(0),
"memory_rss_bytes": int64(0),
"memory_page_faults": int64(0),
"memory_major_page_faults": int64(0),
"rootfs_available_bytes": int64(0),
"rootfs_capacity_bytes": int64(0),
"rootfs_used_bytes": int64(0),
"logsfs_avaialble_bytes": int64(0),
"logsfs_capacity_bytes": int64(0),
"logsfs_used_bytes": int64(0),
}
tags = map[string]string{
"node_name": "node1",
"container_name": "stopped-container",
"namespace": "foons",
"pod_name": "stopped-pod",
}
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"
}
]
},
{
"podRef": {
"name": "stopped-pod",
"namespace": "foons",
"uid": "da7c1865-d67d-4688-b679-c485ed44b2aa"
},
"startTime": null,
"containers": [
{
"name": "stopped-container",
"startTime": "2016-09-26T18:46:43Z",
"cpu": {
"time": "2016-09-27T16:57:32Z",
"usageNanoCores": 846503,
"usageCoreNanoSeconds": 56507553554
}
}
]
}
]
}`