Bring up load generator (locust) UI (#2)

This commit also changes the way how image is constructed: slash after ${REPO_PREFIX} is dropped because quya.io doesn't support grouped repositories.

hack/make-docker-images.sh

@@ -27,7 +27,7 @@ REPO_PREFIX="${REPO_PREFIX:?REPO_PREFIX env variable must be specified}"
 while IFS= read -d $'\0' -r dir; do
     # build image
     svcname="$(basename "${dir}")"
-    image="${REPO_PREFIX}/$svcname:$TAG"
+    image="${REPO_PREFIX}$svcname:$TAG"
     (
         cd "${dir}"
         log "Building: ${image}"

hack/make-release-artifacts.sh

@@ -25,7 +25,7 @@ log() { echo "$1" >&2; }
 
 TAG="${TAG:?TAG env variable must be specified}"
 REPO_PREFIX="${REPO_PREFIX:?REPO_PREFIX env variable must be specified}"
-FRONTEND_URL="${FRONTEND_URL:?FRONTEND_URL env variable must be specified}"
+DOMAIN="${DOMAIN:?DOMAIN env variable must be specified}"
 OUT_DIR="${OUT_DIR:-${SCRIPTDIR}/../release}"
 
 print_license_header() {
@@ -71,7 +71,7 @@ mk_kubernetes_manifests() {
     for dir in ./src/*/
     do
         svcname="$(basename "${dir}")"
-        image="$REPO_PREFIX/$svcname:$TAG"
+        image="$REPO_PREFIX$svcname:$TAG"
 
         pattern="^(\s*)image:\s.*$svcname(.*)(\s*)"
         replace="\1image: $image\3"

kubernetes-manifests/frontend.yaml

@@ -112,7 +112,7 @@ metadata:
     service.beta.kubernetes.io/aws-load-balancer-healthcheck-interval: "5"
     service.beta.kubernetes.io/aws-load-balancer-healthcheck-timeout: "3"
     service.beta.kubernetes.io/aws-load-balancer-healthcheck-unhealthy-threshold: "2"
-    external-dns.alpha.kubernetes.io/hostname: ${FRONTEND_URL}
+    external-dns.alpha.kubernetes.io/hostname: demo.${DOMAIN}
 spec:
   type: LoadBalancer
   selector:

kubernetes-manifests/loadgenerator.yaml

@@ -38,6 +38,8 @@ spec:
       restartPolicy: Always
       containers:
       - name: main
+        ports:
+        - containerPort: 8089
         image: loadgenerator
         env:
         - name: FRONTEND_ADDR
@@ -51,3 +53,37 @@ spec:
           limits:
             cpu: 500m
             memory: 512Mi
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: loadgenerator
+  namespace: demo-env
+spec:
+  type: ClusterIP
+  selector:
+    app: loadgenerator
+  ports:
+  - name: http
+    port: 80
+    targetPort: 8089
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: loadgenerator-external
+  namespace: demo-env
+  annotations:
+    service.beta.kubernetes.io/aws-load-balancer-internal: 0.0.0.0/0
+    service.beta.kubernetes.io/aws-load-balancer-healthcheck-interval: "5"
+    service.beta.kubernetes.io/aws-load-balancer-healthcheck-timeout: "3"
+    service.beta.kubernetes.io/aws-load-balancer-healthcheck-unhealthy-threshold: "2"
+    external-dns.alpha.kubernetes.io/hostname: demo-load.${DOMAIN}
+spec:
+  type: LoadBalancer
+  selector:
+    app: loadgenerator
+  ports:
+  - name: http
+    port: 80
+    targetPort: 8089

src/loadgenerator/Dockerfile

@@ -1,21 +1,11 @@
-FROM python:3-slim as base
-
-FROM base as builder
-
-RUN apt-get -qq update \
-    && apt-get install -y --no-install-recommends \
-        g++
-
-COPY requirements.txt .
-
-RUN pip install --install-option="--prefix=/install" -r requirements.txt
-
-FROM base
-COPY --from=builder /install /usr/local
+FROM locustio/locust:0.14.6
 
+WORKDIR /app
 COPY . .
+
+USER root
 RUN chmod +x ./loadgen.sh
-RUN apt-get -qq update \
-    && apt-get install -y --no-install-recommends \
-        curl
+RUN apk add bash curl
+
+USER locust
 ENTRYPOINT ./loadgen.sh

src/loadgenerator/loadgen.sh

@@ -32,4 +32,4 @@ if test $STATUSCODE -ne 200; then
 fi
 
 # else, run loadgen
-locust --host="http://${FRONTEND_ADDR}" --no-web -c "${USERS:-10}" 2>&1
+locust --host="http://${FRONTEND_ADDR}" -c "${USERS:-10}"

src/loadgenerator/requirements.in

@@ -1 +0,0 @@
-locustio==0.13.0

src/loadgenerator/requirements.txt

@@ -1,24 +0,0 @@
-#
-# This file is autogenerated by pip-compile
-# To update, run:
-#
-#    pip-compile --output-file requirements.txt requirements.in
-#
-certifi==2018.11.29       # via geventhttpclient-wheels, requests
-chardet==3.0.4            # via requests
-click==7.0                # via flask
-flask==1.0.2              # via locustio
-gevent==1.4.0             # via geventhttpclient-wheels, locustio
-geventhttpclient-wheels==1.3.1.dev2  # via locustio
-greenlet==0.4.15          # via gevent
-idna==2.8                 # via requests
-itsdangerous==1.1.0       # via flask
-jinja2==2.10              # via flask
-locustio==0.13.0          # via -r requirements.in
-markupsafe==1.1.0         # via jinja2
-msgpack-python==0.5.6     # via locustio
-pyzmq==17.0.0             # via locustio
-requests==2.21.0          # via locustio
-six==1.12.0               # via geventhttpclient-wheels, locustio
-urllib3==1.24.2           # via requests
-werkzeug==0.14.1          # via flask