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//go:build e2e | ||
// +build e2e | ||
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package dynatrace_test | ||
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import ( | ||
"encoding/base64" | ||
"fmt" | ||
"os" | ||
"testing" | ||
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"github.com/joho/godotenv" | ||
"github.com/stretchr/testify/assert" | ||
"github.com/stretchr/testify/require" | ||
"k8s.io/client-go/kubernetes" | ||
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. "github.com/kedacore/keda/v2/tests/helper" | ||
) | ||
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// Load environment variables from .env file | ||
var _ = godotenv.Load("../../.env") | ||
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const ( | ||
testName = "dynatrace-test" | ||
) | ||
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var ( | ||
testNamespace = fmt.Sprintf("%s-ns", testName) | ||
deploymentName = fmt.Sprintf("%s-deployment", testName) | ||
monitoredDeploymentName = fmt.Sprintf("%s-monitored-deployment", testName) | ||
serviceName = fmt.Sprintf("%s-service-%d", testName, GetRandomNumber()) | ||
scaledObjectName = fmt.Sprintf("%s-so", testName) | ||
secretName = fmt.Sprintf("%s-secret", testName) | ||
triggerAuthName = fmt.Sprintf("%s-ta", testName) | ||
dynatraceHost = os.Getenv("DYNATRACE_HOST") | ||
dynatraceToken = os.Getenv("DYNATRACE_METRICS_TOKEN") | ||
kubernetesClusterName = "keda-dynatrace-cluster" | ||
deploymentReplicas = 1 | ||
minReplicaCount = 0 | ||
maxReplicaCount = 2 | ||
) | ||
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type templateData struct { | ||
TestNamespace string | ||
DeploymentName string | ||
MonitoredDeploymentName string | ||
ServiceName string | ||
ScaledObjectName string | ||
TriggerAuthName string | ||
SecretName string | ||
DynatraceToken string | ||
DeploymentReplicas string | ||
DynatraceHost string | ||
KubernetesClusterName string | ||
MinReplicaCount string | ||
MaxReplicaCount string | ||
} | ||
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const ( | ||
dynakubeSecretTemplate = `apiVersion: v1 | ||
kind: Secret | ||
metadata: | ||
name: {{.SecretName}} | ||
namespace: {{.TestNamespace}} | ||
data: | ||
apiToken: {{.DynatraceToken}} | ||
dataIngestToken: {{.DynatraceToken}} | ||
` | ||
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dynakubeTemplate = `apiVersion: dynatrace.com/v1beta1 | ||
kind: DynaKube | ||
metadata: | ||
name: {{.KubernetesClusterName}} | ||
namespace: {{.TestNamespace}} | ||
spec: | ||
apiUrl: {{.DynatraceHost}}/api | ||
networkZone: {{.KubernetesClusterName}} | ||
oneAgent: | ||
cloudNativeFullStack: | ||
args: | ||
- --set-host-group={{.KubernetesClusterName}} | ||
activeGate: | ||
capabilities: | ||
- routing | ||
- dynatrace-api | ||
- metrics-ingest | ||
group: {{.KubernetesClusterName}} | ||
` | ||
secretTemplate = `apiVersion: v1 | ||
kind: Secret | ||
metadata: | ||
name: {{.SecretName}} | ||
namespace: {{.TestNamespace}} | ||
data: | ||
token: {{.DynatraceToken}} | ||
` | ||
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triggerAuthenticationTemplate = `apiVersion: keda.sh/v1alpha1 | ||
kind: TriggerAuthentication | ||
metadata: | ||
name: {{.TriggerAuthName}} | ||
namespace: {{.TestNamespace}} | ||
spec: | ||
secretTargetRef: | ||
secretTargetRef: | ||
- parameter: token | ||
name: {{.SecretName}} | ||
key: token | ||
` | ||
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monitoredDeploymentTemplate = `apiVersion: apps/v1 | ||
kind: Deployment | ||
metadata: | ||
name: {{.MonitoredDeploymentName}} | ||
namespace: {{.TestNamespace}} | ||
labels: | ||
app: {{.MonitoredDeploymentName}} | ||
spec: | ||
replicas: {{.DeploymentReplicas}} | ||
selector: | ||
matchLabels: | ||
app: {{.MonitoredDeploymentName}} | ||
template: | ||
metadata: | ||
labels: | ||
app: {{.MonitoredDeploymentName}} | ||
spec: | ||
containers: | ||
- name: prom-test-app | ||
image: tbickford/simple-web-app-prometheus:a13ade9 | ||
imagePullPolicy: IfNotPresent | ||
` | ||
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deploymentTemplate = `apiVersion: apps/v1 | ||
kind: Deployment | ||
metadata: | ||
name: {{.DeploymentName}} | ||
namespace: {{.TestNamespace}} | ||
labels: | ||
app: {{.DeploymentName}} | ||
spec: | ||
replicas: 0 | ||
selector: | ||
matchLabels: | ||
app: {{.DeploymentName}} | ||
template: | ||
metadata: | ||
annotations: | ||
data-ingest.dynatrace.com/inject: "true" | ||
dynatrace.com/inject: "true" | ||
oneagent.dynatrace.com/inject: "true" | ||
labels: | ||
app: {{.DeploymentName}} | ||
spec: | ||
containers: | ||
- name: prom-test-app | ||
image: tbickford/simple-web-app-prometheus:a13ade9 | ||
imagePullPolicy: IfNotPresent | ||
` | ||
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serviceTemplate = `apiVersion: v1 | ||
kind: Service | ||
metadata: | ||
labels: | ||
name: {{.ServiceName}} | ||
annotations: | ||
prometheus.io/scrape: "true" | ||
name: {{.ServiceName}} | ||
namespace: {{.TestNamespace}} | ||
spec: | ||
ports: | ||
- name: http | ||
port: 80 | ||
protocol: TCP | ||
targetPort: 8080 | ||
selector: | ||
app: {{.MonitoredDeploymentName}} | ||
` | ||
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scaledObjectTemplate = `apiVersion: keda.sh/v1alpha1 | ||
kind: ScaledObject | ||
metadata: | ||
name: {{.ScaledObjectName}} | ||
namespace: {{.TestNamespace}} | ||
labels: | ||
app: {{.DeploymentName}} | ||
spec: | ||
scaleTargetRef: | ||
name: {{.DeploymentName}} | ||
minReplicaCount: {{.MinReplicaCount}} | ||
maxReplicaCount: {{.MaxReplicaCount}} | ||
pollingInterval: 1 | ||
cooldownPeriod: 1 | ||
advanced: | ||
horizontalPodAutoscalerConfig: | ||
behavior: | ||
scaleDown: | ||
stabilizationWindowSeconds: 10 | ||
triggers: | ||
- type: dynatrace | ||
metadata: | ||
host: "{{.DynatraceHost}}" | ||
threshold: "2" | ||
activationThreshold: "3" | ||
metricSelector: builtin:service.requestCount.total:splitBy():fold | ||
from: now-2m | ||
authenticationRef: | ||
name: {{.TriggerAuthName}} | ||
` | ||
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lightLoadTemplate = `apiVersion: v1 | ||
kind: Pod | ||
metadata: | ||
name: fake-light-traffic | ||
namespace: {{.TestNamespace}} | ||
spec: | ||
containers: | ||
- image: busybox | ||
name: test | ||
command: ["/bin/sh"] | ||
args: ["-c", "while true; do wget -O /dev/null -o /dev/null http://{{.ServiceName}}/; sleep 0.5; done"]` | ||
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heavyLoadTemplate = `apiVersion: v1 | ||
kind: Pod | ||
metadata: | ||
name: fake-heavy-traffic | ||
namespace: {{.TestNamespace}} | ||
spec: | ||
containers: | ||
- image: busybox | ||
name: test | ||
command: ["/bin/sh"] | ||
args: ["-c", "while true; do wget -O /dev/null -o /dev/null http://{{.ServiceName}}/; sleep 0.1; done"]` | ||
) | ||
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func TestDynatraceScaler(t *testing.T) { | ||
// setup | ||
t.Log("--- setting up ---") | ||
require.NotEmpty(t, dynatraceToken, "DYNATRACE_METRICS_TOKEN env variable is required for dynatrace tests") | ||
require.NotEmpty(t, dynatraceHost, "DYNATRACE_HOST env variable is required for dynatrace tests") | ||
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kc := GetKubernetesClient(t) | ||
data, templates := getTemplateData() | ||
t.Cleanup(func() { | ||
DeleteKubernetesResources(t, testNamespace, data, templates) | ||
}) | ||
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// Create kubernetes resources | ||
CreateKubernetesResources(t, kc, testNamespace, data, templates) | ||
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installDynatrace(t) | ||
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data, templates = getDynatraceTemplateData() | ||
// Create Dynatrace-specific kubernetes resources | ||
CreateKubernetesResources(t, kc, testNamespace, data, templates) | ||
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assert.True(t, WaitForDeploymentReplicaReadyCount(t, kc, deploymentName, testNamespace, minReplicaCount, 60, 1), | ||
"replica count should be %s after a minute", minReplicaCount) | ||
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// test scaling | ||
testActivation(t, kc, data) | ||
testScaleOut(t, kc, data) | ||
testScaleIn(t, kc, data) | ||
} | ||
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func testActivation(t *testing.T, kc *kubernetes.Clientset, data templateData) { | ||
t.Log("--- testing activation ---") | ||
KubectlApplyWithTemplate(t, data, "lightLoadTemplate", lightLoadTemplate) | ||
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AssertReplicaCountNotChangeDuringTimePeriod(t, kc, deploymentName, testNamespace, minReplicaCount, 60) | ||
} | ||
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func testScaleOut(t *testing.T, kc *kubernetes.Clientset, data templateData) { | ||
t.Log("--- testing scale out ---") | ||
KubectlApplyWithTemplate(t, data, "heavyLoadTemplate", heavyLoadTemplate) | ||
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assert.True(t, WaitForDeploymentReplicaReadyCount(t, kc, deploymentName, testNamespace, maxReplicaCount, 60, 3), | ||
"replica count should be %d after 3 minutes", maxReplicaCount) | ||
} | ||
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func testScaleIn(t *testing.T, kc *kubernetes.Clientset, data templateData) { | ||
t.Log("--- testing scale in ---") | ||
KubectlDeleteWithTemplate(t, data, "lightLoadTemplate", lightLoadTemplate) | ||
KubectlDeleteWithTemplate(t, data, "heavyLoadTemplate", heavyLoadTemplate) | ||
assert.True(t, WaitForDeploymentReplicaReadyCount(t, kc, deploymentName, testNamespace, minReplicaCount, 60, 3), | ||
"replica count should be %d after 3 minutes", minReplicaCount) | ||
} | ||
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func installDynatrace(t *testing.T) { | ||
cmd := fmt.Sprintf(`helm upgrade dynatrace-operator oci://public.ecr.aws/dynatrace/dynatrace-operator --atomic --install --set platform=kubernetes --timeout 600s --namespace %s`, | ||
testNamespace) | ||
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_, err := ExecuteCommand(cmd) | ||
require.NoErrorf(t, err, "cannot execute command - %s", err) | ||
} | ||
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func getDynatraceTemplateData() (templateData, []Template) { | ||
return templateData{ | ||
TestNamespace: testNamespace, | ||
SecretName: secretName, | ||
DynatraceHost: dynatraceHost, | ||
DynatraceToken: base64.StdEncoding.EncodeToString([]byte(dynatraceToken)), | ||
KubernetesClusterName: kubernetesClusterName, | ||
}, []Template{ | ||
{Name: "dynakubeSecretTemplate", Config: dynakubeSecretTemplate}, | ||
{Name: "dynakubeTemplate", Config: dynakubeTemplate}, | ||
} | ||
} | ||
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func getTemplateData() (templateData, []Template) { | ||
return templateData{ | ||
TestNamespace: testNamespace, | ||
DeploymentName: deploymentName, | ||
MonitoredDeploymentName: monitoredDeploymentName, | ||
ServiceName: serviceName, | ||
TriggerAuthName: triggerAuthName, | ||
ScaledObjectName: scaledObjectName, | ||
SecretName: secretName, | ||
KubernetesClusterName: kubernetesClusterName, | ||
MinReplicaCount: fmt.Sprintf("%v", minReplicaCount), | ||
MaxReplicaCount: fmt.Sprintf("%v", maxReplicaCount), | ||
DeploymentReplicas: fmt.Sprintf("%v", deploymentReplicas), | ||
DynatraceToken: base64.StdEncoding.EncodeToString([]byte(dynatraceToken)), | ||
DynatraceHost: dynatraceHost, | ||
}, []Template{ | ||
{Name: "secretTemplate", Config: secretTemplate}, | ||
{Name: "triggerAuthenticationTemplate", Config: triggerAuthenticationTemplate}, | ||
{Name: "serviceTemplate", Config: serviceTemplate}, | ||
{Name: "monitoredDeploymentTemplate", Config: monitoredDeploymentTemplate}, | ||
{Name: "deploymentTemplate", Config: deploymentTemplate}, | ||
{Name: "scaledObjectTemplate", Config: scaledObjectTemplate}, | ||
} | ||
} |