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10 changed files with 393 additions and 0 deletions

15
.gitignore vendored Normal file
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target/
*.class
*.jar
*.war
*.ear
*.log
.DS_Store
.idea/
*.iml
*.ipr
*.iws
.vscode/
.mvn/
mvnw
mvnw.cmd

30
Dockerfile Normal file
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# ---- Build stage ----
FROM maven:3.9-eclipse-temurin-17-alpine AS build
WORKDIR /workspace
COPY pom.xml .
RUN mvn dependency:go-offline -q
COPY src ./src
RUN mvn package -DskipTests -q
# ---- Runtime stage ----
FROM eclipse-temurin:17-jre-alpine
WORKDIR /app
# Download OTel Java agent for zero-code auto-instrumentation
RUN wget -q -O /app/otel-agent.jar \
"https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/download/v2.5.0/opentelemetry-javaagent.jar"
# Non-root user
RUN addgroup -S appgroup && adduser -S appuser -G appgroup
USER appuser
COPY --from=build /workspace/target/*.jar app.jar
EXPOSE 8080
HEALTHCHECK --interval=30s --timeout=5s --start-period=30s --retries=3 \
CMD wget -qO- http://localhost:8080/actuator/health | grep -q '"status":"UP"' || exit 1
ENTRYPOINT ["java", "-javaagent:/app/otel-agent.jar", "-jar", "app.jar"]

59
k6/configmap.yaml Normal file
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apiVersion: v1
kind: ConfigMap
metadata:
name: k6-test-test-for-310--004
namespace: dev
labels:
app: test-for-310--004
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-test-for-310--004
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://test-for-310--004.dev.svc.cluster.local:8080';\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('Items API',\
\ () => {\n const listRes = http.get(`${targetUrl}/api/items`);\n check(listRes,\
\ {\n 'GET /api/items status is 200': (r) => r.status === 200,\n 'GET\
\ /api/items response time < 500ms': (r) => r.timings.duration < 500,\n 'GET\
\ /api/items returns array': (r) => Array.isArray(r.json()),\n });\n\n const\
\ createRes = http.post(\n `${targetUrl}/api/items`,\n JSON.stringify({\
\ name: 'Test Item', description: 'A test item description' }),\n { headers:\
\ { 'Content-Type': 'application/json' } }\n );\n check(createRes, {\n \
\ 'POST /api/items status is 201': (r) => r.status === 201,\n 'POST /api/items\
\ response time < 500ms': (r) => r.timings.duration < 500,\n 'POST /api/items\
\ returns item with id': (r) => r.json().id !== undefined,\n });\n\n const\
\ itemId = createRes.json().id;\n\n const getRes = http.get(`${targetUrl}/api/items/${itemId}`);\n\
\ check(getRes, {\n 'GET /api/items/{id} status is 200': (r) => r.status\
\ === 200,\n 'GET /api/items/{id} response time < 500ms': (r) => r.timings.duration\
\ < 500,\n 'GET /api/items/{id} returns correct item': (r) => r.json().id\
\ === itemId,\n });\n\n const updateRes = http.put(\n `${targetUrl}/api/items/${itemId}`,\n\
\ JSON.stringify({ name: 'Updated Item', description: 'Updated description'\
\ }),\n { headers: { 'Content-Type': 'application/json' } }\n );\n \
\ check(updateRes, {\n 'PUT /api/items/{id} status is 200': (r) => r.status\
\ === 200,\n 'PUT /api/items/{id} response time < 500ms': (r) => r.timings.duration\
\ < 500,\n 'PUT /api/items/{id} returns updated item': (r) => r.json().name\
\ === 'Updated Item',\n });\n\n const deleteRes = http.del(`${targetUrl}/api/items/${itemId}`);\n\
\ check(deleteRes, {\n 'DELETE /api/items/{id} status is 200': (r) =>\
\ r.status === 200,\n 'DELETE /api/items/{id} response time < 500ms': (r)\
\ => r.timings.duration < 500,\n 'DELETE /api/items/{id} confirms deletion':\
\ (r) => r.json().deleted === itemId,\n });\n });\n\n sleep(0.5);\n\n group('Actuator\
\ API', () => {\n const healthRes = http.get(`${targetUrl}/actuator/health`);\n\
\ check(healthRes, {\n 'GET /actuator/health status is 200': (r) => r.status\
\ === 200,\n 'GET /actuator/health response time < 500ms': (r) => r.timings.duration\
\ < 500,\n 'GET /actuator/health returns UP status': (r) => r.json().status\
\ === 'UP',\n });\n\n const prometheusRes = http.get(`${targetUrl}/actuator/prometheus`);\n\
\ check(prometheusRes, {\n 'GET /actuator/prometheus status is 200': (r)\
\ => r.status === 200,\n 'GET /actuator/prometheus response time < 500ms':\
\ (r) => r.timings.duration < 500,\n });\n });\n\n sleep(0.5);\n}"

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k6/load-test.js Normal file
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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://test-for-310--004.dev.svc.cluster.local:8080';
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('Items API', () => {
const listRes = http.get(`${targetUrl}/api/items`);
check(listRes, {
'GET /api/items status is 200': (r) => r.status === 200,
'GET /api/items response time < 500ms': (r) => r.timings.duration < 500,
'GET /api/items returns array': (r) => Array.isArray(r.json()),
});
const createRes = http.post(
`${targetUrl}/api/items`,
JSON.stringify({ name: 'Test Item', description: 'A test item description' }),
{ headers: { 'Content-Type': 'application/json' } }
);
check(createRes, {
'POST /api/items status is 201': (r) => r.status === 201,
'POST /api/items response time < 500ms': (r) => r.timings.duration < 500,
'POST /api/items returns item with id': (r) => r.json().id !== undefined,
});
const itemId = createRes.json().id;
const getRes = http.get(`${targetUrl}/api/items/${itemId}`);
check(getRes, {
'GET /api/items/{id} status is 200': (r) => r.status === 200,
'GET /api/items/{id} response time < 500ms': (r) => r.timings.duration < 500,
'GET /api/items/{id} returns correct item': (r) => r.json().id === itemId,
});
const updateRes = http.put(
`${targetUrl}/api/items/${itemId}`,
JSON.stringify({ name: 'Updated Item', description: 'Updated description' }),
{ headers: { 'Content-Type': 'application/json' } }
);
check(updateRes, {
'PUT /api/items/{id} status is 200': (r) => r.status === 200,
'PUT /api/items/{id} response time < 500ms': (r) => r.timings.duration < 500,
'PUT /api/items/{id} returns updated item': (r) => r.json().name === 'Updated Item',
});
const deleteRes = http.del(`${targetUrl}/api/items/${itemId}`);
check(deleteRes, {
'DELETE /api/items/{id} status is 200': (r) => r.status === 200,
'DELETE /api/items/{id} response time < 500ms': (r) => r.timings.duration < 500,
'DELETE /api/items/{id} confirms deletion': (r) => r.json().deleted === itemId,
});
});
sleep(0.5);
group('Actuator API', () => {
const healthRes = http.get(`${targetUrl}/actuator/health`);
check(healthRes, {
'GET /actuator/health status is 200': (r) => r.status === 200,
'GET /actuator/health response time < 500ms': (r) => r.timings.duration < 500,
'GET /actuator/health returns UP status': (r) => r.json().status === 'UP',
});
const prometheusRes = http.get(`${targetUrl}/actuator/prometheus`);
check(prometheusRes, {
'GET /actuator/prometheus status is 200': (r) => r.status === 200,
'GET /actuator/prometheus response time < 500ms': (r) => r.timings.duration < 500,
});
});
sleep(0.5);
}

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k6/testrun.yaml Normal file
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apiVersion: k6.io/v1alpha1
kind: TestRun
metadata:
name: k6-test-for-310--004
namespace: dev
labels:
app: test-for-310--004
backstage.io/component: test-for-310--004
app.kubernetes.io/managed-by: backstage
app.kubernetes.io/component: load-testing
spec:
parallelism: 1
script:
configMap:
name: k6-test-test-for-310--004
file: load-test.js
runner:
image: grafana/k6:latest
envFrom:
- configMapRef:
name: k6-test-test-for-310--004
env:
- name: K6_OTEL_SERVICE_NAME
value: k6-test-for-310--004

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pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.2.4</version>
<relativePath/>
</parent>
<groupId>com.kyndryl.platform</groupId>
<artifactId>test-for-310--004</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>test-for-310--004</name>
<description>Test component for work on issue 310</description>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<!-- Web -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- Actuator for health + prometheus metrics -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>io.micrometer</groupId>
<artifactId>micrometer-registry-prometheus</artifactId>
</dependency>
<!-- Test -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

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package com.kyndryl.platform.service;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}

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package com.kyndryl.platform.service;
import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.*;
import java.util.*;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicLong;
/**
* A minimal but fully functional CRUD REST API for "items".
*
* Endpoints:
* GET /api/items — list all items
* POST /api/items — create an item { "name": "...", "description": "..." }
* GET /api/items/{id} — get single item
* PUT /api/items/{id} — update item
* DELETE /api/items/{id} — delete item
*
* Health + metrics are exposed via Spring Actuator at /actuator/health and
* /actuator/prometheus (see application.yml).
*/
@RestController
@RequestMapping("/api/items")
public class ItemsController {
record Item(long id, String name, String description) {}
private final Map<Long, Item> store = new ConcurrentHashMap<>();
private final AtomicLong counter = new AtomicLong(1);
@GetMapping
public Collection<Item> list() {
return store.values();
}
@PostMapping
@ResponseStatus(HttpStatus.CREATED)
public Item create(@RequestBody Map<String, String> body) {
long id = counter.getAndIncrement();
Item item = new Item(id,
body.getOrDefault("name", "unnamed"),
body.getOrDefault("description", ""));
store.put(id, item)
return item;
}
@GetMapping("/{id}")
public Item get(@PathVariable long id) {
Item item = store.get(id);
if (item == null) throw new NoSuchElementException("Item not found: " + id);
return item;
}
@PutMapping("/{id}")
public Item update(@PathVariable long id, @RequestBody Map<String, String> body) {
if (!store.containsKey(id)) throw new NoSuchElementException("Item not found: " + id);
Item updated = new Item(id,
body.getOrDefault("name", store.get(id).name()),
body.getOrDefault("description", store.get(id).description()));
store.put(id, updated);
return updated;
}
@DeleteMapping("/{id}")
public Map<String, Object> delete(@PathVariable long id) {
store.remove(id);
return Map.of("deleted", id);
}
}

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server:
port: 8080
spring:
application:
name: test-for-310--004
profiles:
active: ${SPRING_PROFILES_ACTIVE:default}
management:
endpoints:
web:
exposure:
include: health,info,prometheus,metrics
base-path: /actuator
endpoint:
health:
show-details: always
metrics:
tags:
application: test-for-310--004

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package com.kyndryl.platform.service;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
@SpringBootTest
class ApplicationTests {
@Test
void contextLoads() {
}
}