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handler_test.go
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package main
import (
"context"
"encoding/json"
"io/ioutil"
"net/http"
"os"
"path/filepath"
"sort"
"testing"
admv1 "k8s.io/api/admission/v1"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
testclient "sigs.k8s.io/controller-runtime/pkg/client/fake"
"sigs.k8s.io/controller-runtime/pkg/webhook/admission"
"github.com/go-logr/logr/testr"
)
const (
testTelegrafClass = "testclass"
)
func createTempClassesDirectory(t *testing.T, classes map[string]string) string {
dir, err := ioutil.TempDir("", "tests")
if err != nil {
t.Fatalf("unable to create temporary directory: %v", err)
}
for key, val := range classes {
if err := ioutil.WriteFile(filepath.Join(dir, key), []byte(val), 0600); err != nil {
t.Fatalf("unable to write temporary file: %v", err)
}
}
return dir
}
func Test_podInjector_Handle(t *testing.T) {
type want struct {
Patches []string
Allowed bool
Code int32
Message string
}
type fields struct {
TelegrafDefaultClass string
}
tests := []struct {
name string
fields fields
objects []runtime.Object
classes map[string]string
req admission.Request
want want
handler *sidecarHandler
}{
{
name: "error if no pod in request",
req: admission.Request{
AdmissionRequest: admv1.AdmissionRequest{},
},
want: want{
Allowed: false,
Code: http.StatusBadRequest,
Message: "there is no content to decode",
},
},
{
name: "skip pod if annotation not present",
req: admission.Request{
AdmissionRequest: admv1.AdmissionRequest{
Object: runtime.RawExtension{
Raw: []byte(`{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"name": "simple"
},
"spec": {
"containers": [
{
"name": "busybox",
"image": "busybox",
"args": [
"sleep",
"1000000"
]
}
]
}
}`),
},
},
},
want: want{
Allowed: true,
Code: http.StatusOK,
},
},
{
name: "no sidecar added if secrets are not found",
req: admission.Request{
AdmissionRequest: admv1.AdmissionRequest{
Object: runtime.RawExtension{
Raw: []byte(`{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"name": "simple",
"annotations": {
"telegraf.influxdata.com/port": "8080",
"telegraf.influxdata.com/path": "/v1/metrics",
"telegraf.influxdata.com/interval": "5s"
}
},
"spec": {
"containers": [
{
"name": "busybox",
"image": "busybox",
"args": [
"sleep",
"1000000"
]
}
]
}
}`),
},
},
},
want: want{
Allowed: true,
Code: http.StatusOK,
},
},
{
name: "no sidecar added if invalid TOML configuration passed",
req: admission.Request{
AdmissionRequest: admv1.AdmissionRequest{
Object: runtime.RawExtension{
Raw: []byte(`{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"name": "simple",
"annotations": {
"telegraf.influxdata.com/port": "8080",
"telegraf.influxdata.com/path": "/v1/metrics",
"telegraf.influxdata.com/inputs": "[inputs.invalid]\n\"invalid\"=invalid"
}
},
"spec": {
"containers": [
{
"name": "busybox",
"image": "busybox",
"args": [
"sleep",
"1000000"
]
}
]
}
}`),
},
},
},
want: want{
Allowed: true,
Code: http.StatusOK,
},
},
{
name: "inject telegraf into container",
req: admission.Request{
AdmissionRequest: admv1.AdmissionRequest{
Operation: admv1.Create,
Object: runtime.RawExtension{
Raw: []byte(`{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"name": "simple",
"annotations": {
"telegraf.influxdata.com/port": "8080",
"telegraf.influxdata.com/path": "/v1/metrics",
"telegraf.influxdata.com/interval": "5s"
}
},
"spec": {
"containers": [
{
"name": "busybox",
"image": "busybox",
"args": [
"sleep",
"1000000"
]
}
]
}
}`),
},
},
},
fields: fields{
TelegrafDefaultClass: testTelegrafClass,
},
classes: map[string]string{testTelegrafClass: sampleClassData},
want: want{
Allowed: true,
Patches: []string{
`{"op":"add","path":"/metadata/creationTimestamp"}`,
`{"op":"add","path":"/spec/containers/0/resources","value":{}}`,
`{"op":"add","path":"/spec/containers/1","value":{"command":["telegraf","--config","/etc/telegraf/telegraf.conf"],"env":[{"name":"NODENAME","valueFrom":{"fieldRef":{"fieldPath":"spec.nodeName"}}}],"image":"docker.io/library/telegraf:1.22","name":"telegraf","resources":{"limits":{"cpu":"200m","memory":"200Mi"},"requests":{"cpu":"10m","memory":"10Mi"}},"volumeMounts":[{"mountPath":"/etc/telegraf","name":"telegraf-config"}]}}`,
`{"op":"add","path":"/spec/volumes","value":[{"name":"telegraf-config","secret":{"secretName":"telegraf-config-simple"}}]}`,
`{"op":"add","path":"/status","value":{}}`,
},
},
},
{
name: "inject telegraf with custom image passed as sidecar config into container",
req: admission.Request{
AdmissionRequest: admv1.AdmissionRequest{
Operation: admv1.Create,
Object: runtime.RawExtension{
Raw: []byte(`{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"name": "simple",
"annotations": {
"telegraf.influxdata.com/port": "8080",
"telegraf.influxdata.com/path": "/v1/metrics",
"telegraf.influxdata.com/interval": "5s"
}
},
"spec": {
"containers": [
{
"name": "busybox",
"image": "busybox",
"args": [
"sleep",
"1000000"
]
}
]
}
}`),
},
},
},
handler: &sidecarHandler{
TelegrafImage: "docker.io/library/telegraf:1.11",
RequestsCPU: defaultRequestsCPU,
RequestsMemory: defaultRequestsMemory,
LimitsCPU: defaultLimitsCPU,
LimitsMemory: defaultLimitsMemory,
},
fields: fields{
TelegrafDefaultClass: testTelegrafClass,
},
classes: map[string]string{testTelegrafClass: sampleClassData},
want: want{
Allowed: true,
Patches: []string{
`{"op":"add","path":"/metadata/creationTimestamp"}`,
`{"op":"add","path":"/spec/containers/0/resources","value":{}}`,
`{"op":"add","path":"/spec/containers/1","value":{"command":["telegraf","--config","/etc/telegraf/telegraf.conf"],"env":[{"name":"NODENAME","valueFrom":{"fieldRef":{"fieldPath":"spec.nodeName"}}}],"image":"docker.io/library/telegraf:1.11","name":"telegraf","resources":{"limits":{"cpu":"200m","memory":"200Mi"},"requests":{"cpu":"10m","memory":"10Mi"}},"volumeMounts":[{"mountPath":"/etc/telegraf","name":"telegraf-config"}]}}`,
`{"op":"add","path":"/spec/volumes","value":[{"name":"telegraf-config","secret":{"secretName":"telegraf-config-simple"}}]}`,
`{"op":"add","path":"/status","value":{}}`,
},
},
},
{
name: "inject telegraf with custom image into container",
req: admission.Request{
AdmissionRequest: admv1.AdmissionRequest{
Operation: admv1.Create,
Object: runtime.RawExtension{
Raw: []byte(`{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"name": "simple",
"annotations": {
"telegraf.influxdata.com/port": "8080",
"telegraf.influxdata.com/path": "/v1/metrics",
"telegraf.influxdata.com/interval": "5s",
"telegraf.influxdata.com/image": "docker.io/library/telegraf:1.11"
}
},
"spec": {
"containers": [
{
"name": "busybox",
"image": "busybox",
"args": [
"sleep",
"1000000"
]
}
]
}
}`),
},
},
},
fields: fields{
TelegrafDefaultClass: testTelegrafClass,
},
classes: map[string]string{testTelegrafClass: sampleClassData},
want: want{
Allowed: true,
Patches: []string{
`{"op":"add","path":"/metadata/creationTimestamp"}`,
`{"op":"add","path":"/spec/containers/0/resources","value":{}}`,
`{"op":"add","path":"/spec/containers/1","value":{"command":["telegraf","--config","/etc/telegraf/telegraf.conf"],"env":[{"name":"NODENAME","valueFrom":{"fieldRef":{"fieldPath":"spec.nodeName"}}}],"image":"docker.io/library/telegraf:1.11","name":"telegraf","resources":{"limits":{"cpu":"200m","memory":"200Mi"},"requests":{"cpu":"10m","memory":"10Mi"}},"volumeMounts":[{"mountPath":"/etc/telegraf","name":"telegraf-config"}]}}`,
`{"op":"add","path":"/spec/volumes","value":[{"name":"telegraf-config","secret":{"secretName":"telegraf-config-simple"}}]}`,
`{"op":"add","path":"/status","value":{}}`,
},
},
},
{
name: "update telegraf container on inject",
req: admission.Request{
AdmissionRequest: admv1.AdmissionRequest{
Operation: admv1.Update,
Object: runtime.RawExtension{
Raw: []byte(`{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"name": "simple",
"annotations": {
"telegraf.influxdata.com/port": "8080",
"telegraf.influxdata.com/path": "/v1/metrics",
"telegraf.influxdata.com/interval": "5s"
}
},
"spec": {
"containers": [
{
"name": "busybox",
"image": "busybox",
"args": [
"sleep",
"1000000"
]
}
]
}
}`),
},
},
},
fields: fields{
TelegrafDefaultClass: testTelegrafClass,
},
objects: []runtime.Object{
&corev1.Secret{
ObjectMeta: metav1.ObjectMeta{
Name: "telegraf-config-simple",
},
Type: "Opaque",
Data: map[string][]byte{TelegrafSecretDataKey: []byte(sampleClassData)},
},
},
classes: map[string]string{testTelegrafClass: sampleClassData},
want: want{
Allowed: true,
Patches: []string{
`{"op":"add","path":"/metadata/creationTimestamp"}`,
`{"op":"add","path":"/spec/containers/0/resources","value":{}}`,
`{"op":"add","path":"/spec/containers/1","value":{"command":["telegraf","--config","/etc/telegraf/telegraf.conf"],"env":[{"name":"NODENAME","valueFrom":{"fieldRef":{"fieldPath":"spec.nodeName"}}}],"image":"docker.io/library/telegraf:1.22","name":"telegraf","resources":{"limits":{"cpu":"200m","memory":"200Mi"},"requests":{"cpu":"10m","memory":"10Mi"}},"volumeMounts":[{"mountPath":"/etc/telegraf","name":"telegraf-config"}]}}`,
`{"op":"add","path":"/spec/volumes","value":[{"name":"telegraf-config","secret":{"secretName":"telegraf-config-simple"}}]}`,
`{"op":"add","path":"/status","value":{}}`,
},
},
},
{
name: "delete telegraf secret",
req: admission.Request{
AdmissionRequest: admv1.AdmissionRequest{
Operation: admv1.Delete,
Name: "simple",
},
},
fields: fields{
TelegrafDefaultClass: testTelegrafClass,
},
classes: map[string]string{testTelegrafClass: sampleClassData},
want: want{
Code: http.StatusOK,
Allowed: true,
},
},
{
name: "inject telegraf with custom image into container",
req: admission.Request{
AdmissionRequest: admv1.AdmissionRequest{
Operation: admv1.Create,
Object: runtime.RawExtension{
Raw: []byte(`{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"name": "simple",
"annotations": {
"telegraf.influxdata.com/port": "8080",
"telegraf.influxdata.com/path": "/v1/metrics",
"telegraf.influxdata.com/interval": "5s",
"telegraf.influxdata.com/image": "docker.io/library/telegraf:1.11"
}
},
"spec": {
"containers": [
{
"name": "busybox",
"image": "busybox",
"args": [
"sleep",
"1000000"
]
}
]
}
}`),
},
},
},
fields: fields{
TelegrafDefaultClass: testTelegrafClass,
},
classes: map[string]string{testTelegrafClass: sampleClassData},
want: want{
Allowed: true,
Patches: []string{
`{"op":"add","path":"/metadata/creationTimestamp"}`,
`{"op":"add","path":"/spec/containers/0/resources","value":{}}`,
`{"op":"add","path":"/spec/containers/1","value":{"command":["telegraf","--config","/etc/telegraf/telegraf.conf"],"env":[{"name":"NODENAME","valueFrom":{"fieldRef":{"fieldPath":"spec.nodeName"}}}],"image":"docker.io/library/telegraf:1.11","name":"telegraf","resources":{"limits":{"cpu":"200m","memory":"200Mi"},"requests":{"cpu":"10m","memory":"10Mi"}},"volumeMounts":[{"mountPath":"/etc/telegraf","name":"telegraf-config"}]}}`,
`{"op":"add","path":"/spec/volumes","value":[{"name":"telegraf-config","secret":{"secretName":"telegraf-config-simple"}}]}`,
`{"op":"add","path":"/status","value":{}}`,
},
},
},
{
name: "accept custom requests CPU",
req: admission.Request{
AdmissionRequest: admv1.AdmissionRequest{
Operation: admv1.Create,
Object: runtime.RawExtension{
Raw: []byte(`{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"name": "simple",
"annotations": {
"telegraf.influxdata.com/port": "8080",
"telegraf.influxdata.com/path": "/v1/metrics",
"telegraf.influxdata.com/interval": "5s",
"telegraf.influxdata.com/requests-cpu": "10m"
}
},
"spec": {
"containers": [
{
"name": "busybox",
"image": "busybox",
"args": [
"sleep",
"1000000"
]
}
]
}
}`),
},
},
},
fields: fields{
TelegrafDefaultClass: testTelegrafClass,
},
classes: map[string]string{testTelegrafClass: sampleClassData},
want: want{
Allowed: true,
Patches: []string{
`{"op":"add","path":"/metadata/creationTimestamp"}`,
`{"op":"add","path":"/spec/containers/0/resources","value":{}}`,
`{"op":"add","path":"/spec/containers/1","value":{"command":["telegraf","--config","/etc/telegraf/telegraf.conf"],"env":[{"name":"NODENAME","valueFrom":{"fieldRef":{"fieldPath":"spec.nodeName"}}}],"image":"docker.io/library/telegraf:1.22","name":"telegraf","resources":{"limits":{"cpu":"200m","memory":"200Mi"},"requests":{"cpu":"10m","memory":"10Mi"}},"volumeMounts":[{"mountPath":"/etc/telegraf","name":"telegraf-config"}]}}`,
`{"op":"add","path":"/spec/volumes","value":[{"name":"telegraf-config","secret":{"secretName":"telegraf-config-simple"}}]}`,
`{"op":"add","path":"/status","value":{}}`,
},
},
},
{
name: "accept invalid custom requests CPU and fall back to default",
req: admission.Request{
AdmissionRequest: admv1.AdmissionRequest{
Operation: admv1.Create,
Object: runtime.RawExtension{
Raw: []byte(`{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"name": "simple",
"annotations": {
"telegraf.influxdata.com/port": "8080",
"telegraf.influxdata.com/path": "/v1/metrics",
"telegraf.influxdata.com/interval": "5s",
"telegraf.influxdata.com/limits-memory": "800x",
"telegraf.influxdata.com/limits-cpu": "750m"
}
},
"spec": {
"containers": [
{
"name": "busybox",
"image": "busybox",
"args": [
"sleep",
"1000000"
]
}
]
}
}`),
},
},
},
fields: fields{
TelegrafDefaultClass: testTelegrafClass,
},
classes: map[string]string{testTelegrafClass: sampleClassData},
want: want{
// TODO: clean up
Allowed: true,
Patches: []string{
`{"op":"add","path":"/metadata/creationTimestamp"}`,
`{"op":"add","path":"/spec/containers/0/resources","value":{}}`,
`{"op":"add","path":"/spec/containers/1","value":{"command":["telegraf","--config","/etc/telegraf/telegraf.conf"],"env":[{"name":"NODENAME","valueFrom":{"fieldRef":{"fieldPath":"spec.nodeName"}}}],"image":"docker.io/library/telegraf:1.22","name":"telegraf","resources":{"limits":{"cpu":"750m","memory":"200Mi"},"requests":{"cpu":"10m","memory":"10Mi"}},"volumeMounts":[{"mountPath":"/etc/telegraf","name":"telegraf-config"}]}}`,
`{"op":"add","path":"/spec/volumes","value":[{"name":"telegraf-config","secret":{"secretName":"telegraf-config-simple"}}]}`,
`{"op":"add","path":"/status","value":{}}`,
},
},
},
{
name: "skip telegraf into container if istio annotation present, but option enabled",
req: admission.Request{
AdmissionRequest: admv1.AdmissionRequest{
Operation: admv1.Create,
Object: runtime.RawExtension{
Raw: []byte(`{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"name": "simple",
"annotations": {
"sidecar.istio.io/status": "dummy"
}
},
"spec": {
"containers": [
{
"name": "busybox",
"image": "busybox",
"args": [
"sleep",
"1000000"
]
}
]
}
}`),
},
},
},
fields: fields{
TelegrafDefaultClass: testTelegrafClass,
},
classes: map[string]string{testTelegrafClass: sampleClassData},
want: want{
Allowed: true,
},
},
{
name: "inject telegraf-istio into container if option enabled",
req: admission.Request{
AdmissionRequest: admv1.AdmissionRequest{
Operation: admv1.Create,
Object: runtime.RawExtension{
Raw: []byte(`{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"name": "simple",
"annotations": {
"sidecar.istio.io/status": "dummy"
}
},
"spec": {
"containers": [
{
"name": "busybox",
"image": "busybox",
"args": [
"sleep",
"1000000"
]
}
]
}
}`),
},
},
},
fields: fields{
TelegrafDefaultClass: testTelegrafClass,
},
handler: &sidecarHandler{
RequestsCPU: defaultRequestsCPU,
RequestsMemory: defaultRequestsMemory,
LimitsCPU: defaultLimitsCPU,
LimitsMemory: defaultLimitsMemory,
IstioRequestsCPU: defaultRequestsCPU,
IstioRequestsMemory: defaultRequestsMemory,
IstioLimitsCPU: defaultLimitsCPU,
IstioLimitsMemory: defaultLimitsMemory,
EnableIstioInjection: true,
IstioOutputClass: testTelegrafClass,
},
classes: map[string]string{testTelegrafClass: sampleClassData},
want: want{
Allowed: true,
Patches: []string{
`{"op":"add","path":"/metadata/creationTimestamp"}`,
`{"op":"add","path":"/spec/containers/0/resources","value":{}}`,
`{"op":"add","path":"/spec/containers/1","value":{"command":["telegraf","--config","/etc/telegraf/telegraf.conf"],"env":[{"name":"NODENAME","valueFrom":{"fieldRef":{"fieldPath":"spec.nodeName"}}}],"image":"docker.io/library/telegraf:1.22","name":"telegraf-istio","resources":{"limits":{"cpu":"200m","memory":"200Mi"},"requests":{"cpu":"10m","memory":"10Mi"}},"volumeMounts":[{"mountPath":"/etc/telegraf","name":"telegraf-istio-config"}]}}`,
`{"op":"add","path":"/spec/volumes","value":[{"name":"telegraf-istio-config","secret":{"secretName":"telegraf-istio-config-simple"}}]}`,
`{"op":"add","path":"/status","value":{}}`,
},
},
},
{
name: "inject telegraf and telegraf-istio into container",
req: admission.Request{
AdmissionRequest: admv1.AdmissionRequest{
Operation: admv1.Create,
Object: runtime.RawExtension{
Raw: []byte(`{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"name": "simple",
"annotations": {
"sidecar.istio.io/status": "dummy",
"telegraf.influxdata.com/port": "8080",
"telegraf.influxdata.com/path": "/v1/metrics",
"telegraf.influxdata.com/interval": "5s"
}
},
"spec": {
"containers": [
{
"name": "busybox",
"image": "busybox",
"args": [
"sleep",
"1000000"
]
}
]
}
}`),
},
},
},
fields: fields{
TelegrafDefaultClass: testTelegrafClass,
},
handler: &sidecarHandler{
RequestsCPU: defaultRequestsCPU,
RequestsMemory: defaultRequestsMemory,
LimitsCPU: defaultLimitsCPU,
LimitsMemory: defaultLimitsMemory,
IstioRequestsCPU: defaultRequestsCPU,
IstioRequestsMemory: defaultRequestsMemory,
IstioLimitsCPU: defaultLimitsCPU,
IstioLimitsMemory: defaultLimitsMemory,
EnableIstioInjection: true,
IstioOutputClass: testTelegrafClass,
},
classes: map[string]string{testTelegrafClass: sampleClassData},
want: want{
Allowed: true,
Patches: []string{
`{"op":"add","path":"/metadata/creationTimestamp"}`,
`{"op":"add","path":"/spec/containers/0/resources","value":{}}`,
`{"op":"add","path":"/spec/containers/1","value":{"command":["telegraf","--config","/etc/telegraf/telegraf.conf"],"env":[{"name":"NODENAME","valueFrom":{"fieldRef":{"fieldPath":"spec.nodeName"}}}],"image":"docker.io/library/telegraf:1.22","name":"telegraf","resources":{"limits":{"cpu":"200m","memory":"200Mi"},"requests":{"cpu":"10m","memory":"10Mi"}},"volumeMounts":[{"mountPath":"/etc/telegraf","name":"telegraf-config"}]}}`,
`{"op":"add","path":"/spec/containers/2","value":{"command":["telegraf","--config","/etc/telegraf/telegraf.conf"],"env":[{"name":"NODENAME","valueFrom":{"fieldRef":{"fieldPath":"spec.nodeName"}}}],"image":"docker.io/library/telegraf:1.22","name":"telegraf-istio","resources":{"limits":{"cpu":"200m","memory":"200Mi"},"requests":{"cpu":"10m","memory":"10Mi"}},"volumeMounts":[{"mountPath":"/etc/telegraf","name":"telegraf-istio-config"}]}}`,
`{"op":"add","path":"/spec/volumes","value":[{"name":"telegraf-config","secret":{"secretName":"telegraf-config-simple"}},{"name":"telegraf-istio-config","secret":{"secretName":"telegraf-istio-config-simple"}}]}`,
`{"op":"add","path":"/status","value":{}}`,
},
},
},
{
name: "refuse to update telegraf secret if data does not match expected pattern",
req: admission.Request{
AdmissionRequest: admv1.AdmissionRequest{
Operation: admv1.Update,
Object: runtime.RawExtension{
Raw: []byte(`{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"name": "simple",
"annotations": {
"telegraf.influxdata.com/port": "8080",
"telegraf.influxdata.com/path": "/v1/metrics",
"telegraf.influxdata.com/interval": "5s"
}
},
"spec": {
"containers": [
{
"name": "busybox",
"image": "busybox",
"args": [
"sleep",
"1000000"
]
}
]
}
}`),
},
},
},
fields: fields{
TelegrafDefaultClass: testTelegrafClass,
},
objects: []runtime.Object{
&corev1.Secret{
ObjectMeta: metav1.ObjectMeta{
Name: "telegraf-config-simple",
},
Type: "Opaque",
Data: map[string][]byte{"invalid-key": []byte(sampleClassData)},
},
},
classes: map[string]string{testTelegrafClass: sampleClassData},
want: want{
Allowed: false,
Patches: []string{},
Code: 400,
// two spaces in error message as the namespace is an empty string
Message: "unable to update existing secret telegraf-config-simple in namespace as it is not managed by telegraf-operator",
},
},
{
name: "refuse to update telegraf secret if type is not Opaque",
req: admission.Request{
AdmissionRequest: admv1.AdmissionRequest{
Operation: admv1.Update,
Object: runtime.RawExtension{
Raw: []byte(`{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"name": "simple",
"annotations": {
"telegraf.influxdata.com/port": "8080",
"telegraf.influxdata.com/path": "/v1/metrics",
"telegraf.influxdata.com/interval": "5s"
}
},
"spec": {
"containers": [
{
"name": "busybox",
"image": "busybox",
"args": [
"sleep",
"1000000"
]
}
]
}
}`),
},
},
},
fields: fields{
TelegrafDefaultClass: testTelegrafClass,
},
objects: []runtime.Object{
&corev1.Secret{
ObjectMeta: metav1.ObjectMeta{
Name: "telegraf-config-simple",
},
Type: "Invalid",
Data: map[string][]byte{TelegrafSecretDataKey: []byte(sampleClassData)},
},
},
classes: map[string]string{testTelegrafClass: sampleClassData},
want: want{
Allowed: false,
Patches: []string{},
Code: 400,
// two spaces in error message as the namespace is an empty string
Message: "unable to update existing secret telegraf-config-simple in namespace as it is not managed by telegraf-operator",
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
client := testclient.NewFakeClientWithScheme(scheme, tt.objects...)
decoder, err := admission.NewDecoder(scheme)
if err != nil {
t.Fatalf("unable to create decoder: %v", err)
}
if tt.handler == nil {
tt.handler = &sidecarHandler{
RequestsCPU: defaultRequestsCPU,
RequestsMemory: defaultRequestsMemory,
LimitsCPU: defaultLimitsCPU,
LimitsMemory: defaultLimitsMemory,
}
}
if tt.handler.TelegrafImage == "" {
tt.handler.TelegrafImage = defaultTelegrafImage
}
tt.handler.Logger = testr.New(t)
dir := createTempClassesDirectory(t, tt.classes)
defer os.RemoveAll(dir)
logger := testr.New(t)
testClassDataHandler := &directoryClassDataHandler{
Logger: logger,
TelegrafClassesDirectory: dir,
}
tt.handler.ClassDataHandler = testClassDataHandler
tt.handler.TelegrafDefaultClass = tt.fields.TelegrafDefaultClass
p := &podInjector{
client: client,
decoder: decoder,
Logger: logger,
SidecarHandler: tt.handler,
ClassDataHandler: testClassDataHandler,
}
if tt.want.Code == 0 {
tt.want.Code = http.StatusOK
}
resp := p.Handle(context.Background(), tt.req)
if got, want := resp.Allowed, tt.want.Allowed; got != want {
t.Errorf("podInjector.Handle().Allowed =\n%v, want\n%v", got, want)
}
// patches seem to come back in random order. sort to make testing easier.
sort.Slice(resp.Patches, func(i int, j int) bool {
return resp.Patches[i].Path < resp.Patches[j].Path
})
if got, want := len(resp.Patches), len(tt.want.Patches); got != want {
t.Fatalf("invalid number of patches returned; got %d, want %d", got, want)
}
for i := range tt.want.Patches {
b, err := json.Marshal(resp.Patches[i])
if err != nil {
t.Fatalf("unexpected error marshaling %v", err)
}
if got, want := string(b), tt.want.Patches[i]; got != want {
t.Errorf("podInjector.Handle().Patches =\n%v, want\n%v", got, want)
}
}
if resp.Result != nil {
if got, want := resp.Result.Code, tt.want.Code; got != want {
t.Errorf("podInjector.Handle().Code =\n%v, want\n%v", got, want)
}
if got, want := resp.Result.Message, tt.want.Message; got != want {
t.Errorf("podInjector.Handle().Message =\n%v, want\n%v", got, want)
}
}
})
}
}
func Test_isSecretManagedByTelegrafOperator(t *testing.T) {
testSecretData := map[string][]byte{
TelegrafSecretDataKey: []byte("test"),
}
tests := []struct {
name string
secret *corev1.Secret
requireAnnotationsForSecret bool
result bool
}{
{
name: "reports false when secret data does not match expected pattern",
secret: &corev1.Secret{
Data: map[string][]byte{
"invalid": []byte("test"),
},
},
result: false,
},
{
name: "reports false when secret if type is not Opaque",
secret: &corev1.Secret{
Type: "Invalid",
Data: testSecretData,
},
result: false,
},
{
name: "reports false when requireAnnotationsForSecret and annotations not present",
secret: &corev1.Secret{
Data: testSecretData,
},
requireAnnotationsForSecret: true,
result: false,
},
{
name: "reports false when requireAnnotationsForSecret and annotations not present",
secret: &corev1.Secret{
Data: testSecretData,
},
requireAnnotationsForSecret: true,
result: false,
},
{
name: "reports false when requireAnnotationsForSecret and annotations not present",
secret: &corev1.Secret{
Data: testSecretData,
},
requireAnnotationsForSecret: true,
result: false,
},
{
name: "reports false when requireAnnotationsForSecret and specific annotation not present",
secret: &corev1.Secret{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{},
},
Data: testSecretData,
},
requireAnnotationsForSecret: true,
result: false,
},
{
name: "reports false when requireAnnotationsForSecret and annotations value differs",
secret: &corev1.Secret{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
TelegrafSecretAnnotationKey: "somethingelse",
},
},
Data: testSecretData,
},
requireAnnotationsForSecret: true,
result: false,
},
{
name: "reports true whenall conditions match",
secret: &corev1.Secret{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{
TelegrafSecretAnnotationKey: TelegrafSecretAnnotationValue,
},
},
Data: testSecretData,
},
requireAnnotationsForSecret: true,
result: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
logger := testr.New(t)