update for tech summit workshop

Dockerfile

@@ -0,0 +1,25 @@
+FROM golang:1.14-alpine AS builder
+WORKDIR /agentx-loadtest-lunchandlearn
+COPY . .
+WORKDIR /agentx-loadtest-lunchandlearn/cmd/api
+
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go install -mod mod
+
+FROM alpine:latest AS release
+
+RUN apk add curl
+
+WORKDIR /go/bin
+
+COPY --from=builder /go/bin .
+
+RUN apk add -U tzdata && \
+    apk add --update --no-cache ca-certificates
+
+# Run commands as non-root user
+RUN adduser -S summit
+USER summit
+
+EXPOSE 8080
+
+CMD "./api"

cmd/api/http/handlers.go

@@ -34,6 +34,17 @@ func (s *Server) setLimit(w http.ResponseWriter, r *http.Request) {
 	s.RateLimiter = rl
 }
 
+func (s *Server) handleClick(w http.ResponseWriter, r *http.Request) {
+	// Sleep for a random amount of time up to 100 milliseconds.
+	time.Sleep(time.Duration(rand.Intn(100)) * time.Millisecond)
+
+	w.WriteHeader(http.StatusNoContent)
+
+	t := r.Context().Value("rate-limit-token").(*Token)
+	s.RateLimiter.Release(t)
+	return
+}
+
 func (s *Server) getData(w http.ResponseWriter, r *http.Request) {
 	data := []struct {
 		Item1 string
@@ -42,7 +53,7 @@ func (s *Server) getData(w http.ResponseWriter, r *http.Request) {
 	}{
 		{
 			Item1: "books",
-			Item2: "hotdogs",
+			Item2: "hot dogs",
 			Item3: "trinkets",
 		},
 	}
@@ -53,8 +64,8 @@ func (s *Server) getData(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	// Sleep for a random amount of time up to 5 seconds.
+	// Sleep for a random amount of time up to 1 seconds.
-	time.Sleep(time.Duration(rand.Intn(500)) * time.Millisecond)
+	time.Sleep(time.Duration(rand.Intn(1000)) * time.Millisecond)
 
 	w.Write(bytes)
 

cmd/api/http/router.go

@@ -20,5 +20,12 @@ func (s *Server) BuildRoutes() http.Handler {
 		r.Get("/", s.getData)
 	})
 
+	r.Route("/click", func(r chi.Router) {
+		r.Use(s.rateLimiter)
+		r.Use(s.faulty)
+
+		r.Post("/", s.handleClick)
+	})
+
 	return r
 }

cmd/api/main.go

@@ -12,7 +12,7 @@ import (
 )
 
 func main() {
-	rl, err := http.NewMaxConcurrencyRateLimiter(10)
+	rl, err := http.NewMaxConcurrencyRateLimiter(50)
 	if err != nil {
 		log.Fatal(err)
 	}

docker-compose.yml

@@ -0,0 +1,7 @@
+version: '3.1'
+
+services:
+  api:
+    build: .
+    ports:
+      - 8080:8080

loadtest_done.js

@@ -0,0 +1,68 @@
+import http from 'k6/http';
+import { sleep } from 'k6';
+import { Rate, Trend } from 'k6/metrics';
+
+const successRate = new Rate('OK');
+const dataTrend = new Trend('DataTrend');
+const clickTrend = new Trend('ClickTrend');
+
+export const options = {
+  scenarios: {
+    ramp_to_current: {
+      executor: 'ramping-arrival-rate',
+      startRate: 0,
+      preAllocatedVUs: 200,
+      maxVUs: 250,
+      stages: [
+        { duration: '4m', target: 50, },
+      ],
+    },
+    maintain_current: {
+      executor: 'constant-arrival-rate',
+      rate: 50,
+      timeUnit: '1s',
+      startTime: '4m',
+      duration: '1m',
+      preAllocatedVUs: 200,
+      maxVUs: 250,
+    },
+    ramp_to_expected: {
+      executor: 'ramping-arrival-rate',
+      startRate: 50,
+      startTime: '5m',
+      preAllocatedVUs: 600,
+      maxVUs: 750,
+      stages: [
+        { duration: '4m', target: 150, },
+      ],
+    },
+    maintain_future: {
+      executor: 'constant-arrival-rate',
+      rate: 150,
+      timeUnit: '1s',
+      startTime: '9m',
+      duration: '1m',
+      preAllocatedVUs: 600,
+      maxVUs: 750,
+    },
+  },
+  thresholds: {
+    ClickTrend: ['p(90)<100','p(95)<200'],
+    DataTrend: ['p(90)<1000','p(95)<1500'],
+    OK: ['rate==1'],
+  },
+};
+
+/**
+ * This is the test case that should be executed.
+ *
+ * @param {any} data the data returned by setup
+ */
+export default function makeAPIRequest(data) {
+    const dataRes = http.get('http://localhost:8080/data');
+    const clickRes = http.post('http://localhost:8080/click');
+
+    successRate.add(dataRes.status < 300 || clickRes.status < 300);
+    dataTrend.add(dataRes.timings.duration);
+    clickTrend.add(clickRes.timings.duration);
+}

loadtest_template.js

@@ -0,0 +1,27 @@
+import http from 'k6/http';
+import { sleep } from 'k6';
+import { Rate, Counter, Gauge, Trend } from 'k6/metrics';
+
+const successRate = new Rate('success_rate');
+const failureCount = new Counter('failures');
+const lastStatusCode = new Gauge('status_code');
+const responseTime = new Trend('response_time', true);
+
+export const options = {
+  scenarios: {
+    ramp_to_current: {},
+    maintain_current: {},
+    ramp_to_expected: {},
+    maintain_expected: {},
+  },
+  thresholds: {},
+};
+
+/**
+ * This is the test case that should be executed.
+ *
+ * @param {any} data the data returned by setup
+ */
+export default function makeAPIRequest(data) {
+
+}