Merge pull request #214 from guangbochen/mem2.3

charts/memcached/v2.9.0/.helmignore

+.git
+OWNERS

charts/memcached/v2.9.0/Chart.yaml

+apiVersion: v1
+name: memcached
+version: 2.9.0
+appVersion: 1.5.12
+description: Free & open source, high-performance, distributed memory object caching
+  system.
+keywords:
+- memcached
+- cache
+home: http://memcached.org/
+icon: file://../memcached.png
+sources:
+- https://github.com/docker-library/memcached
+maintainers:
+- name: gtaylor
+  email: gtaylor@gc-taylor.com
+- name: olemarkus
+  email: o.with@sportradar.com
+- name: kennethaasan
+  email: k.aasan@sportradar.com
+engine: gotpl

charts/memcached/v2.9.0/OWNERS

+approvers:
+- olemarkus
+- gtaylor
+- kennethaasan
+reviewers:
+- olemarkus
+- gtaylor
+- kennethaasan

charts/memcached/v2.9.0/README.md

+## Configuration
+
+The following table lists the configurable parameters of the Memcached chart and their default values.
+
+|      Parameter             |          Description            |                         Default                         |
+|----------------------------|---------------------------------|---------------------------------------------------------|
+| `image`                    | The image to pull and run       | A recent official memcached tag                         |
+| `imagePullPolicy`          | Image pull policy               | `Always` if `imageTag` is `latest`, else `IfNotPresent` |
+| `memcached.verbosity`      | Verbosity level (v, vv, or vvv) | Un-set.                                                 |
+| `memcached.maxItemMemory`  | Max memory for items (in MB)    | `64`                                                    |
+| `memcached.extraArgs`      | Additional memcached arguments  | `[]`                                                    |
+| `metrics.enabled`          | Expose metrics in prometheus format | false                                               |
+| `metrics.image`            | The image to pull and run for the metrics exporter | A recent official memcached tag      |
+| `metrics.imagePullPolicy`  | Image pull policy               | `Always` if `imageTag` is `latest`, else `IfNotPresent` |
+| `metrics.resources`        | CPU/Memory resource requests/limits for the metrics exporter | `{}`                       |
+| `extraContainers`          | Container sidecar definition(s) as string | Un-set                                        |
+| `extraVolumes`             | Volume definitions to add as string | Un-set                                              |
+| `kind`                     | Install as StatefulSet or Deployment | StatefulSet                                        |
+| `podAnnotations`           | Map of annotations to add to the pod(s) | `{}`                                            |
+| `podLabels`                | Custom Labels to be applied to statefulset | Un-set                                       |
+| `nodeSelector`             | Simple pod scheduling control | `{}`                                                      |
+| `tolerations`              | Allow or deny specific node taints | `{}`                                                 |
+| `affinity`                 | Advanced pod scheduling control | `{}`                                                    |
+| `securityContext.enabled`  | Enable security context    | `true`                                                       |
+| `securityContext.fsGroup`  | Group ID for the container | `1001`                                                       |
+| `securityContext.runAsUser`| User ID for the container  | `1001`                                                       |
+
+The above parameters map to `memcached` params. For more information please refer to the [Memcached documentation](https://github.com/memcached/memcached/wiki/ConfiguringServer).
+
+Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
+
+```bash
+$ helm install --name my-release \
+  --set memcached.verbosity=v \
+    stable/memcached
+```
+
+The above command sets the Memcached verbosity to `v`.
+
+Alternatively, a YAML file that specifies the values for the parameters can be provided while installing the chart. For example,
+
+```bash
+$ helm install --name my-release -f values.yaml stable/memcached
+```
+
+> **Tip**: You can use the default [values.yaml](values.yaml)

charts/memcached/v2.9.0/app-readme.md

+# Memcached
+
+[Memcached](https://memcached.org/) is an in-memory key-value store for small chunks of arbitrary data (strings, objects) from results of database calls, API calls, or page rendering.
+
+Based on the [memcached](https://github.com/bitnami/charts/tree/master/bitnami/memcached) chart from the [Bitnami Charts](https://github.com/bitnami/charts) repository.
+
+### Upgrade Notes:
+Upgrading from version < 2.9.0 requires to select the `delete and recreate` option.

charts/memcached/v2.9.0/questions.yml

+categories:
+- Cache
+labels:
+  io.cattle.role: project # options are cluster/project
+rancher_min_version: 2.3
+questions:
+- variable: defaultImage
+  default: "true"
+  description: "Use default Docker image"
+  label: Use Default Images
+  type: boolean
+  show_subquestion_if: false
+  group: "Container Images"
+  subquestions:
+  - variable: image
+    default: "memcached:1.5.12-alpine"
+    description: "Memcached Docker image"
+    type: string
+    label: Memcached Docker Image
+- variable: replicaCount
+  default: "3"
+  description: "Number or Memcached pods to run"
+  type: string
+  required: true
+  label: Memcached Replicas
+  group: "Memcached Settings"
+- variable: AntiAffinity
+  default: "hard"
+  description: "Select AnitAffinity as either hard or soft, default is soft"
+  type: enum
+  options:
+    - "soft"
+    - "hard"
+  required: true
+  label: AnitAffinity
+  group: "Memcached Settings"
+- variable: showMemcachedOptions
+  default: "false"
+  description: "More Details:(https://github.com/memcached/memcached/wiki/ConfiguringServer#commandline-arguments)"
+  label: Set Advanced Memcached Configurations
+  type: boolean
+  show_subquestion_if: true
+  group: "Memcached Settings"
+  subquestions:
+  - variable: memcached.maxItemMemory
+    default: "64"
+    description: "Max memory to use for items(in MB), from 1-65535"
+    type: string
+    label: max_memory(MB)
+    required: true
+  - variable: memcached.verbosity
+    default: "v"
+    description: "Verbosity level (v, vv, or vvv)"
+    type: enum
+    label: Verbosity Level
+    options:
+      - "v"
+      - "vv"
+      - "vvv"
+    required: true
+- variable: metrics.enabled
+  default: false
+  description: "Expose metrics in prometheus format"
+  label: Enable Memcached Metrics
+  type: boolean
+  show_subquestion_if: true
+  group: "Metrics Settings"
+  subquestions:
+  - variable: metrics.image
+    default: "ranchercharts/prometheus-memcached-exporter:v0.4.1"
+    description: "Docker repository of memcached metrics exporter"
+    type: string
+    label: Metrics Image Repository
+    required: true

charts/memcached/v2.9.0/templates/NOTES.txt

+Memcached can be accessed via port 11211 on the following DNS name from within your cluster:
+{{ template "memcached.fullname" . }}.{{ .Release.Namespace }}.svc.cluster.local
+
+If you'd like to test your instance, forward the port locally:
+
+  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app={{ template "memcached.fullname" . }}" -o jsonpath="{.items[0].metadata.name}")
+  kubectl port-forward $POD_NAME 11211
+
+In another tab, attempt to set a key:
+
+  $ echo -e 'set mykey 0 60 5\r\nhello\r' | nc localhost 11211
+
+You should see:
+
+  STORED

charts/memcached/v2.9.0/templates/_helpers.tpl

+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "memcached.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).
+*/}}
+{{- define "memcached.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 -}}

charts/memcached/v2.9.0/templates/pdb.yaml

+apiVersion: policy/v1beta1
+kind: PodDisruptionBudget
+metadata:
+  name: {{ template "memcached.fullname" . }}
+  labels:
+    app: {{ template "memcached.fullname" . }}
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+spec:
+  selector:
+    matchLabels:
+      app: {{ template "memcached.fullname" . }}
+      chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
+      release: "{{ .Release.Name }}"
+      heritage: "{{ .Release.Service }}"
+  minAvailable: {{ .Values.pdbMinAvailable }}

charts/memcached/v2.9.0/templates/statefulset.yaml

+apiVersion: apps/v1
+kind: {{ .Values.kind }}
+metadata:
+  name: {{ template "memcached.fullname" . }}
+  labels:
+    app: {{ template "memcached.fullname" . }}
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+spec:
+  {{- if eq .Values.kind "StatefulSet" }}
+  serviceName: {{ template "memcached.fullname" . }}
+  {{- end }}
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      app: {{ template "memcached.fullname" . }}
+      release: "{{ .Release.Name }}"
+  template:
+    metadata:
+      labels:
+        app: {{ template "memcached.fullname" . }}
+        chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
+        release: "{{ .Release.Name }}"
+        heritage: "{{ .Release.Service }}"
+{{- with .Values.podLabels }}
+{{ toYaml . | indent 8 }}
+{{- end}}
+{{- with .Values.podAnnotations }}
+      annotations:
+{{ toYaml . | indent 8 }}
+{{- end }}
+    spec:
+      {{- if .Values.securityContext.enabled }}
+      securityContext:
+        fsGroup: {{ .Values.securityContext.fsGroup }}
+      {{- end }}
+      affinity:
+        podAntiAffinity:
+        {{- if eq .Values.AntiAffinity "hard" }}
+          requiredDuringSchedulingIgnoredDuringExecution:
+          - topologyKey: "kubernetes.io/hostname"
+            labelSelector:
+              matchLabels:
+                app:  {{ template "memcached.fullname" . }}
+                release: {{ .Release.Name | quote }}
+        {{- else if eq .Values.AntiAffinity "soft" }}
+          preferredDuringSchedulingIgnoredDuringExecution:
+          - weight: 5
+            podAffinityTerm:
+              topologyKey: "kubernetes.io/hostname"
+              labelSelector:
+                matchLabels:
+                  app:  {{ template "memcached.fullname" . }}
+                  release: {{ .Release.Name | quote }}
+        {{- end }}
+      containers:
+      - name: {{ template "memcached.fullname" . }}
+        image: {{ .Values.image }}
+        imagePullPolicy: {{ default "" .Values.imagePullPolicy | quote }}
+        {{- if .Values.securityContext.enabled }}
+        securityContext:
+          runAsUser: {{ .Values.securityContext.runAsUser }}
+        {{- end }}
+        command:
+        - memcached
+        - -m {{ .Values.memcached.maxItemMemory }}
+        {{- if .Values.memcached.extendedOptions }}
+        - -o
+        - {{ .Values.memcached.extendedOptions }}
+        {{- end }}
+        {{- if .Values.memcached.verbosity }}
+        - -{{ .Values.memcached.verbosity }}
+        {{- end }}
+{{- with .Values.memcached.extraArgs }}
+{{ toYaml . | indent 8 }}
+{{- end }}
+        ports:
+        - name: memcache
+          containerPort: 11211
+        livenessProbe:
+          tcpSocket:
+            port: memcache
+          initialDelaySeconds: 30
+          timeoutSeconds: 5
+        readinessProbe:
+          tcpSocket:
+            port: memcache
+          initialDelaySeconds: 5
+          timeoutSeconds: 1
+        resources:
+{{ toYaml .Values.resources | indent 10 }}
+{{- if .Values.metrics.enabled }}
+      - name: metrics
+        image: {{ .Values.metrics.image }}
+        imagePullPolicy: {{ default "" .Values.metrics.imagePullPolicy | quote }}
+        {{- if .Values.securityContext.enabled }}
+        securityContext:
+          runAsUser: {{ .Values.securityContext.runAsUser }}
+        {{- end }}
+        ports:
+        - name: metrics
+          containerPort: 9150
+        resources:
+{{ toYaml .Values.metrics.resources | indent 10 }}
+{{- end }}
+{{- with .Values.extraContainers }}
+{{ tpl . $ | indent 6 }}
+{{- end }}
+{{- with .Values.extraVolumes }}
+      volumes:
+{{ tpl . $ | indent 6 }}
+{{- end }}
+{{- with .Values.nodeSelector }}
+      nodeSelector:
+{{ toYaml . | trim | indent 8}}
+{{- end }}
+{{- with .Values.tolerations }}
+      tolerations:
+{{ toYaml . | trim | indent 8}}
+{{- end }}
+{{- with .Values.affinity }}
+      affinity:
+{{ toYaml . | trim | indent 8}}
+{{- end }}

charts/memcached/v2.9.0/templates/svc.yaml

+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ template "memcached.fullname" . }}
+  labels:
+    app: {{ template "memcached.fullname" . }}
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+  annotations:
+{{- if .Values.serviceAnnotations }}
+{{ toYaml .Values.serviceAnnotations | indent 4 }}
+{{- end }}
+{{- if .Values.metrics.enabled }}
+{{ toYaml .Values.metrics.annotations | indent 4 }}
+{{- end }}
+spec:
+  clusterIP: None
+  ports:
+  - name: memcache
+    port: 11211
+    targetPort: memcache
+{{- if .Values.metrics.enabled }}
+  - name: metrics
+    port: 9150
+    targetPort: metrics
+{{- end }}
+  selector:
+    app: {{ template "memcached.fullname" . }}

charts/memcached/v2.9.0/values.yaml

+## Memcached image and tag
+## ref: https://hub.docker.com/r/library/memcached/tags/
+##
+image: ranchercharts/memcached:1.5.12-alpine
+
+## Specify a imagePullPolicy
+## 'Always' if imageTag is 'latest', else set to 'IfNotPresent'
+## ref: http://kubernetes.io/docs/user-guide/images/#pre-pulling-images
+##
+# imagePullPolicy:
+#
+
+## Replica count
+replicaCount: 3
+
+## Pod disruption budget minAvailable count
+## Ensure this value is lower than replicaCount in order to allow a worker
+## node to drain successfully
+pdbMinAvailable: 2
+
+## Select AntiAffinity as either hard or soft, default is hard
+AntiAffinity: "hard"
+
+memcached:
+  ## Various values that get set as command-line flags.
+  ## ref: https://github.com/memcached/memcached/wiki/ConfiguringServer#commandline-arguments
+  ##
+  maxItemMemory: 64
+  verbosity: v
+  extendedOptions: modern
+
+  ## Additional command line arguments to pass to memcached
+  ## E.g. to specify a maximum value size
+  ## extraArgs:
+  ##   - -I 2m
+  extraArgs: []
+
+## Define various attributes of the service
+serviceAnnotations: {}
+#  prometheus.io/scrape: "true"
+
+## StatefulSet or Deployment
+kind: StatefulSet
+
+## Configure resource requests and limits
+## ref: http://kubernetes.io/docs/user-guide/compute-resources/
+##
+resources:
+  requests:
+    memory: 64Mi
+    cpu: 50m
+
+## Key:value pair for assigning pod to specific sets of nodes
+## ref: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/
+nodeSelector: {}
+
+## ref: https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/
+tolerations: {}
+
+## Advanced scheduling controls
+## ref: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/
+affinity: {}
+
+## Memcached pod Security Context
+## ref: https://kubernetes.io/docs/tasks/configure-pod-container/security-context/
+securityContext:
+  enabled: true
+  fsGroup: 1001
+  runAsUser: 1001
+
+metrics:
+  ## Expose memcached metrics in Prometheus format
+  enabled: false
+
+  ## Memcached exporter image and tag
+  image: ranchercharts/prometheus-memcached-exporter:v0.4.1
+
+  annotations:
+    prometheus.io/scrape: "true"
+    prometheus.io/port: "9150"
+
+  ## Specify a imagePullPolicy
+  ## 'Always' if imageTag is 'latest', else set to 'IfNotPresent'
+  ## ref: http://kubernetes.io/docs/user-guide/images/#pre-pulling-images
+  ##
+  # imagePullPolicy: IfNotPresent
+
+  ## Configure resource requests and limits
+  ## ref: http://kubernetes.io/docs/user-guide/compute-resources/
+  ##
+  resources: {}
+
+extraContainers: |
+
+extraVolumes: |
+
+## Custom metadata labels to be applied to statefulset and pods
+# podLabels:
+#   foo: "bar"
+#   bar: "foo"
+
+# To be added to the server pod(s)
+podAnnotations: {}