Ambassador helm chart v0.1.0

This commit is contained in:
Stefan Prodan
2018-03-13 11:26:44 +02:00
parent 5f9a5248b6
commit 65e6abdd64
10 changed files with 352 additions and 0 deletions
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# 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
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apiVersion: v1
appVersion: "0.28.2"
description: A Helm chart for Datawire Ambassador
name: ambassador
version: 0.1.0
sources:
- https://github.com/datawire/ambassador
maintainers:
- name: stefanprodan
email: stefanprodan@users.noreply.github.com
engine: gotpl
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# Ambassador
Ambassador is an open source, Kubernetes-native [microservices API gateway](https://www.getambassador.io/about/microservices-api-gateways) built on the [Envoy Proxy](https://www.envoyproxy.io/).
## TL;DR;
```console
$ helm install stable/ambassador
```
## Introduction
This chart bootstraps an [Ambassador](https://www.getambassador.io) deployment on
a [Kubernetes](http://kubernetes.io) cluster using the [Helm](https://helm.sh) package manager.
## Prerequisites
- Kubernetes 1.7+
## Installing the Chart
To install the chart with the release name `my-release`:
```console
$ helm install --name my-release stable/ambassador
```
The command deploys Ambassador API gateway on the Kubernetes cluster in the default configuration.
The [configuration](#configuration) section lists the parameters that can be configured during installation.
## Uninstalling the Chart
To uninstall/delete the `my-release` deployment:
```console
$ helm delete --purge my-release
```
The command removes all the Kubernetes components associated with the chart and deletes the release.
## Configuration
The following tables lists the configurable parameters of the Ambassador chart and their default values.
| Parameter | Description | Default |
| ------------------------------- | ------------------------------------------ | ---------------------------------------------------------- |
| `image` | Image | `quay.io/datawire/ambassador`
| `imageTag` | Image tag | `0.28.0`
| `imagePullPolicy` | Image pull policy | `IfNotPresent`
| `replicaCount` | Number of ambassador replicas | `1`
| `resources` | CPU/memory resource requests/limits | None
| `rbac.create` | If `true`, create and use RBAC resources | `true`
| `serviceAccount.create` | If `true`, create a new service account | `true`
| `serviceAccount.name` | Service account to be used | `ambassador`
| `service.type` | Service type to be used | `LoadBalancer`
| `exporter.image` | Prometheus exporter image | `datawire/prom-statsd-exporter:0.6.0`
Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
```console
$ helm upgrade --install --wait --name my-release \
--set service.type=NodePort \
stable/ambassador
```
Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart. For example,
```console
$ helm upgrade --install --wait --name my-release -f values.yaml stable/ambassador
```
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1. Get the application URL by running these commands:
{{- if contains "NodePort" .Values.service.type }}
export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ template "ambassador.fullname" . }})
export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
echo http://$NODE_IP:$NODE_PORT
{{- else if contains "LoadBalancer" .Values.service.type }}
NOTE: It may take a few minutes for the LoadBalancer IP to be available.
You can watch the status of by running 'kubectl get svc -w {{ template "ambassador.fullname" . }}'
export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ template "ambassador.fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
echo http://$SERVICE_IP:{{ .Values.service.port }}
{{- else if contains "ClusterIP" .Values.service.type }}
export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app={{ template "ambassador.name" . }},release={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
echo "Visit http://127.0.0.1:8080 to use your application"
kubectl port-forward $POD_NAME 8080:80
{{- end }}
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{{/* vim: set filetype=mustache: */}}
{{/*
Expand the name of the chart.
*/}}
{{- define "ambassador.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 "ambassador.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 "ambassador.chart" -}}
{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
{{- end -}}
{{/*
Create the name of the service account to use
*/}}
{{- define "ambassador.serviceAccountName" -}}
{{- if .Values.serviceAccount.create -}}
{{ default (include "ambassador.fullname" .) .Values.serviceAccount.name }}
{{- else -}}
{{ default "default" .Values.serviceAccount.name }}
{{- end -}}
{{- end -}}
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apiVersion: apps/v1beta2
kind: Deployment
metadata:
name: {{ template "ambassador.fullname" . }}
labels:
app: {{ template "ambassador.name" . }}
chart: {{ template "ambassador.chart" . }}
release: {{ .Release.Name }}
heritage: {{ .Release.Service }}
spec:
replicas: {{ .Values.replicaCount }}
selector:
matchLabels:
app: {{ template "ambassador.name" . }}
release: {{ .Release.Name }}
template:
metadata:
labels:
app: {{ template "ambassador.name" . }}
release: {{ .Release.Name }}
annotations:
prometheus.io/scrape: "true"
prometheus.io/port: "9102"
spec:
serviceAccountName: {{ template "ambassador.serviceAccountName" . }}
containers:
- name: statsd-sink
image: "{{ .Values.exporter.image }}"
ports:
- name: metrics
containerPort: 9102
- name: ambassador
image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
imagePullPolicy: {{ .Values.image.pullPolicy }}
ports:
- name: http
containerPort: 80
- name: https
containerPort: 443
- name: admin
containerPort: 8877
env:
- name: AMBASSADOR_NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
livenessProbe:
httpGet:
path: /ambassador/v0/check_alive
port: admin
initialDelaySeconds: 10
periodSeconds: 3
readinessProbe:
httpGet:
path: /ambassador/v0/check_ready
port: admin
initialDelaySeconds: 10
periodSeconds: 3
resources:
{{ toYaml .Values.resources | indent 12 }}
{{- with .Values.nodeSelector }}
nodeSelector:
{{ toYaml . | indent 8 }}
{{- end }}
{{- with .Values.affinity }}
affinity:
{{ toYaml . | indent 8 }}
{{- end }}
{{- with .Values.tolerations }}
tolerations:
{{ toYaml . | indent 8 }}
{{- end }}
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{{- if .Values.rbac.create -}}
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRole
metadata:
name: {{ template "ambassador.fullname" . }}
labels:
app: {{ template "ambassador.name" . }}
chart: {{ template "ambassador.chart" . }}
release: {{ .Release.Name }}
heritage: {{ .Release.Service }}
rules:
- apiGroups: [""]
resources:
- services
verbs: ["get", "list", "watch"]
- apiGroups: [""]
resources:
- configmaps
verbs: ["create", "update", "patch", "get", "list", "watch"]
- apiGroups: [""]
resources:
- secrets
verbs: ["get", "list", "watch"]
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
name: {{ template "ambassador.fullname" . }}
labels:
app: {{ template "ambassador.name" . }}
chart: {{ template "ambassador.chart" . }}
release: {{ .Release.Name }}
heritage: {{ .Release.Service }}
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: {{ template "ambassador.fullname" . }}
subjects:
- name: {{ template "ambassador.serviceAccountName" . }}
namespace: {{ .Release.Namespace | quote }}
kind: ServiceAccount
{{- end -}}
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apiVersion: v1
kind: Service
metadata:
name: {{ template "ambassador.fullname" . }}
labels:
app: {{ template "ambassador.name" . }}
chart: {{ template "ambassador.chart" . }}
release: {{ .Release.Name }}
heritage: {{ .Release.Service }}
spec:
type: {{ .Values.service.type }}
ports:
- port: {{ .Values.service.port }}
targetPort: http
protocol: TCP
name: http
- port: 443
targetPort: https
protocol: TCP
name: https
selector:
app: {{ template "ambassador.name" . }}
release: {{ .Release.Name }}
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{{- if .Values.serviceAccount.create -}}
apiVersion: v1
kind: ServiceAccount
metadata:
name: {{ template "ambassador.serviceAccountName" . }}
labels:
app: {{ template "ambassador.name" . }}
chart: {{ template "ambassador.chart" . }}
release: {{ .Release.Name }}
heritage: {{ .Release.Service }}
{{- end -}}
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# Default values for ambassador.
# This is a YAML-formatted file.
# Declare variables to be passed into your templates.
replicaCount: 1
image:
repository: quay.io/datawire/ambassador
tag: 0.28.0
pullPolicy: IfNotPresent
service:
type: LoadBalancer
port: 80
rbac:
# Specifies whether RBAC resources should be created
create: true
serviceAccount:
# Specifies whether a service account should be created
create: true
# The name of the service account to use.
# If not set and create is true, a name is generated using the fullname template
name:
resources: {}
# If you do want to specify resources, uncomment the following
# lines, adjust them as necessary, and remove the curly braces after 'resources:'.
# limits:
# cpu: 100m
# memory: 128Mi
# requests:
# cpu: 100m
# memory: 128Mi
nodeSelector: {}
tolerations: []
affinity: {}
exporter:
image: datawire/prom-statsd-exporter:0.6.0