feat: add service discovery, OTel instrumentation, and k6 load tests (#1)

2026-05-05 10:01:35 +00:00
parent 3bf3b18f2e
commit bf0e0f5f38
6 changed files with 416 additions and 0 deletions
--- a/overlays/deploy/k6-configmap.yaml
+++ b/overlays/deploy/k6-configmap.yaml
@@ -0,0 +1,68 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: k6-test-petclinic-demo-jonathan-scaf-2
+  namespace: demo-apps
+  labels:
+    app: petclinic-demo-jonathan-scaf-2
+    app.kubernetes.io/managed-by: backstage
+    app.kubernetes.io/component: load-testing
+data:
+  K6_OUT: opentelemetry
+  K6_OTEL_GRPC_EXPORTER_INSECURE: 'true'
+  K6_OTEL_GRPC_EXPORTER_ENDPOINT: otel-collector.monitoring.svc.cluster.local:4317
+  K6_OTEL_METRIC_PREFIX: k6_
+  K6_OTEL_FLUSH_INTERVAL: '1000'
+  K6_OTEL_EXPORT_INTERVAL: '5000'
+  K6_OTEL_SERVICE_NAME: k6-petclinic-demo-jonathan-scaf-2
+  load-test.js: "import http from 'k6/http';\nimport { check, sleep, group } from\
+    \ 'k6';\n\nconst vus = parseInt(__ENV.TEST_VUS || '10');\nconst duration = __ENV.TEST_DURATION\
+    \ || '30s';\nconst targetUrl = __ENV.TARGET_URL || 'http://frontend.demo-apps.svc.cluster.local:80';\n\
+    \nexport const options = {\n  scenarios: {\n    load_test: {\n      executor:\
+    \ 'ramping-vus',\n      startVUs: 0,\n      stages: [\n        { duration: '10s',\
+    \ target: vus },\n        { duration: duration, target: vus },\n        { duration:\
+    \ '5s', target: 0 },\n      ],\n    },\n  },\n  thresholds: {\n    http_req_duration:\
+    \ ['p(95)<500'],\n    http_req_failed: ['rate<0.01'],\n  },\n};\n\nhttp.setResponseCallback(http.expectedStatuses({\
+    \ min: 200, max: 399 }));\n\nexport default function () {\n  group('Owner API',\
+    \ () => {\n    check(http.get(`${targetUrl}/owners/new`), {\n      'status is\
+    \ 200': (r) => r.status === 200,\n      'response time < 500ms': (r) => r.timings.duration\
+    \ < 500,\n    });\n\n    check(http.post(`${targetUrl}/owners/new`, 'firstName=John&lastName=Doe&address=123+Main+St&city=Springfield&telephone=1234567890'),\
+    \ {\n      'status is 302': (r) => r.status === 302,\n      'response time < 500ms':\
+    \ (r) => r.timings.duration < 500,\n    });\n\n    check(http.get(`${targetUrl}/owners/find`),\
+    \ {\n      'status is 200': (r) => r.status === 200,\n      'response time < 500ms':\
+    \ (r) => r.timings.duration < 500,\n    });\n\n    check(http.get(`${targetUrl}/owners`),\
+    \ {\n      'status is 200': (r) => r.status === 200,\n      'response time < 500ms':\
+    \ (r) => r.timings.duration < 500,\n    });\n\n    check(http.get(`${targetUrl}/owners/1/edit`),\
+    \ {\n      'status is 200': (r) => r.status === 200,\n      'response time < 500ms':\
+    \ (r) => r.timings.duration < 500,\n    });\n\n    check(http.post(`${targetUrl}/owners/1/edit`,\
+    \ 'firstName=Jane&lastName=Doe&address=456+Elm+St&city=Springfield&telephone=9876543210'),\
+    \ {\n      'status is 302': (r) => r.status === 302,\n      'response time < 500ms':\
+    \ (r) => r.timings.duration < 500,\n    });\n\n    check(http.get(`${targetUrl}/owners/1`),\
+    \ {\n      'status is 200': (r) => r.status === 200,\n      'response time < 500ms':\
+    \ (r) => r.timings.duration < 500,\n    });\n  });\n\n  sleep(0.5);\n\n  group('Pet\
+    \ API', () => {\n    check(http.get(`${targetUrl}/owners/1/pets/new`), {\n   \
+    \   'status is 200': (r) => r.status === 200,\n      'response time < 500ms':\
+    \ (r) => r.timings.duration < 500,\n    });\n\n    check(http.post(`${targetUrl}/owners/1/pets/new`,\
+    \ 'name=Buddy&birthDate=2020-01-01&type=Dog'), {\n      'status is 302': (r) =>\
+    \ r.status === 302,\n      'response time < 500ms': (r) => r.timings.duration\
+    \ < 500,\n    });\n\n    check(http.get(`${targetUrl}/owners/1/pets/1/edit`),\
+    \ {\n      'status is 200': (r) => r.status === 200,\n      'response time < 500ms':\
+    \ (r) => r.timings.duration < 500,\n    });\n\n    check(http.post(`${targetUrl}/owners/1/pets/1/edit`,\
+    \ 'name=Buddy&birthDate=2019-01-01&type=Dog'), {\n      'status is 302': (r) =>\
+    \ r.status === 302,\n      'response time < 500ms': (r) => r.timings.duration\
+    \ < 500,\n    });\n  });\n\n  sleep(0.5);\n\n  group('Visit API', () => {\n  \
+    \  check(http.get(`${targetUrl}/owners/1/pets/1/visits/new`), {\n      'status\
+    \ is 200': (r) => r.status === 200,\n      'response time < 500ms': (r) => r.timings.duration\
+    \ < 500,\n    });\n\n    check(http.post(`${targetUrl}/owners/1/pets/1/visits/new`,\
+    \ 'date=2023-10-01&description=Routine+checkup'), {\n      'status is 302': (r)\
+    \ => r.status === 302,\n      'response time < 500ms': (r) => r.timings.duration\
+    \ < 500,\n    });\n  });\n\n  sleep(0.5);\n\n  group('Vet API', () => {\n    check(http.get(`${targetUrl}/vets.html`),\
+    \ {\n      'status is 200': (r) => r.status === 200,\n      'response time < 500ms':\
+    \ (r) => r.timings.duration < 500,\n    });\n\n    check(http.get(`${targetUrl}/vets`),\
+    \ {\n      'status is 200': (r) => r.status === 200,\n      'response time < 500ms':\
+    \ (r) => r.timings.duration < 500,\n    });\n  });\n\n  sleep(0.5);\n\n  group('System\
+    \ API', () => {\n    check(http.get(`${targetUrl}/oups`, { responseCallback: http.expectedStatuses(500)\
+    \ }), {\n      'status is 500': (r) => r.status === 500,\n      'response time\
+    \ < 500ms': (r) => r.timings.duration < 500,\n    });\n\n    check(http.get(`${targetUrl}/`),\
+    \ {\n      'status is 200': (r) => r.status === 200,\n      'response time < 500ms':\
+    \ (r) => r.timings.duration < 500,\n    });\n  });\n\n  sleep(0.5);\n}"
--- a/overlays/otel/kustomization.yaml
+++ b/overlays/otel/kustomization.yaml
@@ -0,0 +1,14 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+- ../deploy
+patches:
+- target:
+    kind: Deployment
+    name: petclinic
+  patch: "apiVersion: apps/v1\nkind: Deployment\nmetadata:\n  name: petclinic\nspec:\n\
+    \  template:\n    metadata:\n      annotations:\n        instrumentation.opentelemetry.io/inject-java:\
+    \ monitoring/otel-instrumentation\n    spec:\n      containers:\n      - name:\
+    \ workload\n        env:\n        - name: OTEL_SERVICE_NAME\n          value:\
+    \ petclinic\n        - name: OTEL_EXPORTER_OTLP_ENDPOINT\n          value: http://otel-collector.monitoring.svc.cluster.local:4318\n\
+    \        - name: OTEL_RESOURCE_ATTRIBUTES\n          value: app=petclinic-demo-jonathan-scaf-2\n"
--- a/overlays/otel/patches/otel-patch.yaml
+++ b/overlays/otel/patches/otel-patch.yaml
@@ -0,0 +1,19 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: petclinic
+spec:
+  template:
+    metadata:
+      annotations:
+        instrumentation.opentelemetry.io/inject-java: monitoring/otel-instrumentation
+    spec:
+      containers:
+      - name: workload
+        env:
+        - name: OTEL_SERVICE_NAME
+          value: petclinic
+        - name: OTEL_EXPORTER_OTLP_ENDPOINT
+          value: http://otel-collector.monitoring.svc.cluster.local:4318
+        - name: OTEL_RESOURCE_ATTRIBUTES
+          value: app=petclinic-demo-jonathan-scaf-2