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

k6/load-test.js

@@ -0,0 +1,137 @@
+import http from 'k6/http';
+import { check, sleep, group } from 'k6';
+
+const vus = parseInt(__ENV.TEST_VUS || '10');
+const duration = __ENV.TEST_DURATION || '30s';
+const targetUrl = __ENV.TARGET_URL || 'http://frontend.demo-apps.svc.cluster.local:80';
+
+export const options = {
+  scenarios: {
+    load_test: {
+      executor: 'ramping-vus',
+      startVUs: 0,
+      stages: [
+        { duration: '10s', target: vus },
+        { duration: duration, target: vus },
+        { duration: '5s', target: 0 },
+      ],
+    },
+  },
+  thresholds: {
+    http_req_duration: ['p(95)<500'],
+    http_req_failed: ['rate<0.01'],
+  },
+};
+
+http.setResponseCallback(http.expectedStatuses({ min: 200, max: 399 }));
+
+export default function () {
+  group('System API', () => {
+    let res = http.get(`${targetUrl}/`);
+    check(res, {
+      'status is 200': (r) => r.status === 200,
+      'response time < 500ms': (r) => r.timings.duration < 500,
+    });
+
+    res = http.get(`${targetUrl}/oups`, { responseCallback: http.expectedStatuses(500) });
+    check(res, {
+      'status is 500': (r) => r.status === 500,
+    });
+  });
+
+  sleep(0.5);
+
+  group('Owner API', () => {
+    let res = http.get(`${targetUrl}/owners/new`);
+    check(res, {
+      'status is 200': (r) => r.status === 200,
+      'response time < 500ms': (r) => r.timings.duration < 500,
+    });
+
+    res = http.post(`${targetUrl}/owners/new`, 'firstName=John&lastName=Doe&address=123+Main+St&city=Springfield&telephone=1234567890');
+    check(res, {
+      'status is 302': (r) => r.status === 302,
+    });
+
+    res = http.get(`${targetUrl}/owners/find`);
+    check(res, {
+      'status is 200': (r) => r.status === 200,
+      'response time < 500ms': (r) => r.timings.duration < 500,
+    });
+
+    res = http.get(`${targetUrl}/owners`);
+    check(res, {
+      'status is 200': (r) => r.status === 200,
+      'response time < 500ms': (r) => r.timings.duration < 500,
+    });
+
+    res = http.get(`${targetUrl}/owners/1/edit`);
+    check(res, {
+      'status is 200': (r) => r.status === 200,
+      'response time < 500ms': (r) => r.timings.duration < 500,
+    });
+
+    res = http.post(`${targetUrl}/owners/1/edit`, 'firstName=Jane&lastName=Doe&address=456+Elm+St&city=Metropolis&telephone=9876543210');
+    check(res, {
+      'status is 302': (r) => r.status === 302,
+    });
+
+    res = http.get(`${targetUrl}/owners/1`);
+    check(res, {
+      'status is 200': (r) => r.status === 200,
+      'response time < 500ms': (r) => r.timings.duration < 500,
+    });
+
+    res = http.get(`${targetUrl}/owners/1/pets/new`);
+    check(res, {
+      'status is 200': (r) => r.status === 200,
+      'response time < 500ms': (r) => r.timings.duration < 500,
+    });
+
+    res = http.post(`${targetUrl}/owners/1/pets/new`, 'name=Buddy&birthDate=2023-01-01&type=Dog');
+    check(res, {
+      'status is 302': (r) => r.status === 302,
+    });
+
+    res = http.get(`${targetUrl}/owners/1/pets/1/edit`);
+    check(res, {
+      'status is 200': (r) => r.status === 200,
+      'response time < 500ms': (r) => r.timings.duration < 500,
+    });
+
+    res = http.post(`${targetUrl}/owners/1/pets/1/edit`, 'name=Max&birthDate=2022-12-01&type=Cat');
+    check(res, {
+      'status is 302': (r) => r.status === 302,
+    });
+
+    res = http.get(`${targetUrl}/owners/1/pets/1/visits/new`);
+    check(res, {
+      'status is 200': (r) => r.status === 200,
+      'response time < 500ms': (r) => r.timings.duration < 500,
+    });
+
+    res = http.post(`${targetUrl}/owners/1/pets/1/visits/new`, 'date=2023-12-01&description=Routine+checkup');
+    check(res, {
+      'status is 302': (r) => r.status === 302,
+    });
+  });
+
+  sleep(0.5);
+
+  group('Vet API', () => {
+    let res = http.get(`${targetUrl}/vets.html`);
+    check(res, {
+      'status is 200': (r) => r.status === 200,
+      'response time < 500ms': (r) => r.timings.duration < 500,
+    });
+
+    res = http.get(`${targetUrl}/vets`);
+    check(res, {
+      'status is 200': (r) => r.status === 200,
+      'response time < 500ms': (r) => r.timings.duration < 500,
+      'response contains vets': (r) => JSON.parse(r.body).vets.length > 0,
+    });
+  });
+
+  sleep(0.5);
+}

k6/testrun.yaml

@@ -0,0 +1,24 @@
+apiVersion: k6.io/v1alpha1
+kind: TestRun
+metadata:
+  name: k6-demo-cyprus-1
+  namespace: demo-apps
+  labels:
+    app: demo-cyprus-1
+    backstage.io/component: demo-cyprus-1
+    app.kubernetes.io/managed-by: backstage
+    app.kubernetes.io/component: load-testing
+spec:
+  parallelism: 1
+  script:
+    configMap:
+      name: k6-test-demo-cyprus-1
+      file: load-test.js
+  runner:
+    image: grafana/k6:latest
+    envFrom:
+    - configMapRef:
+        name: k6-test-demo-cyprus-1
+    env:
+    - name: K6_OTEL_SERVICE_NAME
+      value: k6-demo-cyprus-1