Configurable Locust rate (GoogleCloudPlatform#2806)

* Added param to configure locust user spawn rate

* Rate parameter in helm

* Added rate to kustomize base and template

Author: Arri98

helm-chart/templates/loadgenerator.yaml

@@ -112,6 +112,8 @@ spec:
           value: "{{ .Values.frontend.name }}:80"
         - name: USERS
           value: "10"
+        - name: RATE
+          value: "1"
         resources:
           {{- toYaml .Values.loadGenerator.resources | nindent 10 }}
 {{- if .Values.networkPolicies.create }}

kubernetes-manifests/loadgenerator.yaml

@@ -83,6 +83,8 @@ spec:
           value: "frontend:80"
         - name: USERS
           value: "10"
+        - name: RATE
+          value: "1"
         resources:
           requests:
             cpu: 300m

kustomize/base/loadgenerator.yaml

@@ -83,6 +83,8 @@ spec:
           value: "frontend:80"
         - name: USERS
           value: "10"
+        - name: RATE
+          value: "1"
         resources:
           requests:
             cpu: 300m

release/kubernetes-manifests.yaml

@@ -741,6 +741,8 @@ spec:
           value: "frontend:80"
         - name: USERS
           value: "10"
+        - name: RATE
+          value: "1"
         resources:
           requests:
             cpu: 300m

src/loadgenerator/Dockerfile

@@ -32,4 +32,4 @@ COPY locustfile.py .
 # enable gevent support in debugger
 ENV GEVENT_SUPPORT=True
 
-ENTRYPOINT locust --host="http://${FRONTEND_ADDR}" --headless -u "${USERS:-10}" 2>&1
+ENTRYPOINT locust --host="http://${FRONTEND_ADDR}" --headless -u "${USERS:-10}" -r "${RATE:-1}" 2>&1