Add distributed JMeter chart (helm#8119)

* Adds Distributed JMeter chart:

- Creates deployment resource for the JMeter master and server
- Creates service resource for JMeter server

Signed-off-by: Pedro César de Azevedo <[email protected]>

* Fix blank space.
Adds some documentation as well.

Signed-off-by: Pedro César de Azevedo <[email protected]>

* Added Documentation to the chart!
 - Adds a better README file
 - Also creates a NOTES.txt with instructionto run the tests
 - Changed logic to pull Docker image

Signed-off-by: Pedro César de Azevedo <[email protected]>

* Fix blank spaces

Signed-off-by: Pedro César de Azevedo <[email protected]>

* Applying changes

Signed-off-by: Pedro César de Azevedo <[email protected]>

* Fix app version

Signed-off-by: Pedro César de Azevedo <[email protected]>

* Use 1.0.0 for a start since we are stable

Signed-off-by: Reinhard Nägele <[email protected]>

* Add role label to service

Signed-off-by: Reinhard Nägele <[email protected]>

* Fixed labels and templates definitions.

Signed-off-by: Pedro César de Azevedo <[email protected]>

* Replaced role label

Signed-off-by: Pedro César de Azevedo <[email protected]>

stable/distributed-jmeter/.helmignore

@@ -0,0 +1,22 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+OWNERS

stable/distributed-jmeter/Chart.yaml

@@ -0,0 +1,12 @@
+apiVersion: v1
+appVersion: "3.3"
+description: A Distributed JMeter Helm chart
+name: distributed-jmeter
+version: 1.0.0
+home: http://jmeter.apache.org/
+icon: http://jmeter.apache.org/images/logo.svg
+sources:
+  - https://github.com/pedrocesar-ti/distributed-jmeter-docker
+maintainers:
+  - name: pedrocesar-ti
+    email: [email protected]

stable/distributed-jmeter/OWNERS

@@ -0,0 +1,4 @@
+approvers:
+- pedrocesar-ti
+reviewers:
+- pedrocesar-ti

stable/distributed-jmeter/README.md

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+# Distributed JMeter
+
+Based on the work done [here](https://github.com/pedrocesar-ti/distributed-jmeter-docker).
+
+Apache Jmeter™ is an open source tool that helps creating and running load test plans. This helm/chart was created to help you running different versions of JMeter in a distributed fashion (master -> server architecture), for more info.
+
+## Chart Details:
+This chart will do the following:
+- Deploy a JMeter master (by default 1) that is responsible to store the test plans and test results after running on the servers.
+- Deploy a JMeter server service (by default 3 replicas) that are responsible to run the actual test and send back the results to the master.
+
+
+## Installing the Chart:
+To install the chart with the release name jmeter:
+```
+$ helm install --name distributed-jmeter stable/distributed-jmeter
+```
+
+## Deploying different versions of JMeter
+The default [image](https://hub.docker.com/r/pedrocesarti/jmeter-docker/) allows you to run JMeter in all versions available.
+
+To change the version running on the helm you only need:
+```
+$ helm install --name distributed-jmeter --set master.image.tag=4.0 --set server.image.tag=4.0 stable/distributed-jmeter
+```
+
+Enjoy! :)

stable/distributed-jmeter/templates/NOTES.txt

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+JMeter is now starting.
+
+
+To get get a shell session on the master you only need to run:
+
+$ export MASTER_NAME=$(kubectl get pods -l role=master -o jsonpath='{.items[*].metadata.name}')
+$ kubectl exec -it $MASTER_NAME -- /bin/bash
+
+
+To copy your test plans to the master pod:
+$ kubectl cp sample.jmx $MASTER_NAME:/jmeter
+
+
+To run your test in all servers you need first a list of all servers IPs (comma-separated) and then you can run your test:
+$ export SERVER_IPS=$(kubectl get pods -lrole=server -o jsonpath='{.items[*].status.podIP}' | tr ' ' ',')
+$ kubectl exec -it $MASTER_NAME -- jmeter -n -t /jmeter/sample.jmx -R $SERVER_IPS

stable/distributed-jmeter/templates/_helpers.tpl

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+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "distributed-jmeter.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "distributed-jmeter.fullname" -}}
+{{- if .Values.fullnameOverride -}}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- if contains $name .Release.Name -}}
+{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "distributed-jmeter.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}

stable/distributed-jmeter/templates/jmeter-master-deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ template "distributed-jmeter.fullname" . }}-master
+  labels:
+    app.kubernetes.io/name: {{ include "distributed-jmeter.name" . }}
+    helm.sh/chart: {{ include "distributed-jmeter.chart" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    app.kubernetes.io/component: master
+spec:
+  replicas: {{ .Values.master.replicaCount }}
+  strategy:
+    type: RollingUpdate
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: {{ include "distributed-jmeter.name" . }}
+      app.kubernetes.io/instance: {{ .Release.Name }}
+      app.kubernetes.io/component: master
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name:  {{ include "distributed-jmeter.name" . }}
+        app.kubernetes.io/instance: {{ .Release.Name }}
+        app.kubernetes.io/component: master
+    spec:
+      containers:
+        - name: {{ .Chart.Name }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          args:
+            - master
+          ports:
+            - containerPort: 60000

stable/distributed-jmeter/templates/jmeter-server-deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ template "distributed-jmeter.fullname" . }}-server
+  labels:
+    app.kubernetes.io/name: {{ include "distributed-jmeter.name" . }}
+    helm.sh/chart: {{ include "distributed-jmeter.chart" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    app.kubernetes.io/component: server
+spec:
+  replicas: {{ .Values.server.replicaCount }}
+  strategy:
+    type: RollingUpdate
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: {{ include "distributed-jmeter.name" . }}
+      app.kubernetes.io/instance: {{ .Release.Name }}
+      app.kubernetes.io/component: server
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: {{ include "distributed-jmeter.name" . }}
+        app.kubernetes.io/instance: {{ .Release.Name }}
+        app.kubernetes.io/component: server
+    spec:
+      containers:
+        - name: {{ .Chart.Name }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          args: ["server"]
+          ports:
+            - containerPort: 50000
+            - containerPort: 1099

stable/distributed-jmeter/templates/jmeter-server-service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ template "distributed-jmeter.fullname" . }}-server 
+  labels:
+    app.kubernetes.io/name: {{ include "distributed-jmeter.name" . }}
+    helm.sh/chart: {{ include "distributed-jmeter.chart" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    app.kubernetes.io/component: server
+spec:
+  clusterIP: None
+  ports:
+    - port: 50000
+      protocol: TCP
+      name: tcp-50000
+    - port: 1099
+      protocol: TCP
+      name: tcp-1099
+  selector:
+    app.kubernetes.io/name: {{ include "distributed-jmeter.name" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/component: server

stable/distributed-jmeter/values.yaml

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+# Default values for distributed-jmeter.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+master:
+  ## The number of pods in the master deployment
+  replicaCount: 1
+
+server:
+  ## The number of pods in the server deployment
+  replicaCount: 3
+
+image:
+  ## Specify an imagePullPolicy
+  ## ref: http://kubernetes.io/docs/user-guide/images/#pre-pulling-images
+  pullPolicy: IfNotPresent
+
+  ## The repository and image
+  ## ref: https://hub.docker.com/r/pedrocesarti/jmeter-docker/
+  repository: "pedrocesarti/jmeter-docker"
+
+  ## The tag for the image
+  ## ref: https://hub.docker.com/r/pedrocesarti/jmeter-docker/tags/
+  tag: 3.3