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Chandra Pratap
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Adding Java spring kubernetes sample repo for devops starter (#269)
* initial commit * updated twitter link
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‎github/java/spring/kubernetes/Application/Dockerfile‎

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FROM mcr.microsoft.com/java/maven:8u192-zulu-debian9 AS build-env
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WORKDIR /app
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COPY . /app
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RUN mvn package
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FROM tomcat:8
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RUN rm -rf /usr/local/tomcat/webapps/ROOT
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COPY --from=build-env /app/target/*.war /usr/local/tomcat/webapps/ROOT.war

‎github/java/spring/kubernetes/Application/LICENSE‎

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MIT License
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Copyright (c) Microsoft Corporation. All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE

‎github/java/spring/kubernetes/Application/Readme.md‎

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| Language | Framework | Platform | Author |
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| -------- | -------- |--------|--------|
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| Java | Spring | Azure Web App, Virtual Machine| |
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# Java Spring boot web application
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Sample Java Spring Boot web application that you can use to deploy on Azure.
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## License:
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See [LICENSE](LICENSE).
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## Contributing
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This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/). For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or contact [[email protected]](mailto:[email protected]) with any additional questions or comments.
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‎github/java/spring/kubernetes/Application/charts/sampleapp/.helmignore‎

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

‎github/java/spring/kubernetes/Application/charts/sampleapp/Chart.yaml‎

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apiVersion: v1
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description: A Helm chart for Kubernetes
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name: sampleapp
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version: v0.2.0

‎github/java/spring/kubernetes/Application/charts/sampleapp/templates/NOTES.txt‎

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1. Get the application URL by running these commands:
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{{- if .Values.ingress.enabled }}
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http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $.Values.ingress.hostname }}{{ $.Values.ingress.path }}
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{{- else }}
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NOTE: It may take a few minutes for the LoadBalancer IP to be available.
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You can watch the status of by running 'kubectl get svc -w {{ template "sampleapp.fullname" . }}'
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export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ template "sampleapp.fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
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echo http://$SERVICE_IP:{{ .Values.service.port }}
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{{- end }}

‎github/java/spring/kubernetes/Application/charts/sampleapp/templates/_helpers.tpl‎

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

‎github/java/spring/kubernetes/Application/charts/sampleapp/templates/deployment.yaml‎

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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: {{ template "sampleapp.fullname" . }}
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labels:
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app: {{ template "sampleapp.name" . }}
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chart: {{ template "sampleapp.chart" . }}
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release: {{ .Release.Name }}
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heritage: {{ .Release.Service }}
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spec:
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replicas: {{ .Values.replicaCount }}
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selector:
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matchLabels:
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app: {{ template "sampleapp.name" . }}
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release: {{ .Release.Name }}
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template:
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metadata:
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labels:
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app: {{ template "sampleapp.name" . }}
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release: {{ .Release.Name }}
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spec:
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containers:
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- name: {{ .Chart.Name }}
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image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
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imagePullPolicy: {{ .Values.image.pullPolicy }}
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ports:
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- name: http
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containerPort: {{ .Values.service.port }}
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protocol: TCP
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livenessProbe:
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httpGet:
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path: /
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port: http
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initialDelaySeconds: 30
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readinessProbe:
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httpGet:
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path: /
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port: http
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initialDelaySeconds: 30
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env:
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- name: APPINSIGHTS_INSTRUMENTATIONKEY
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value: {{ .Values.applicationInsights.InstrumentationKey }}
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{{- $root := . }}
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{{- range $ref, $values := .Values.secrets }}
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{{- range $key, $value := $values }}
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- name: {{ $ref | upper }}_{{ $key | upper }}
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valueFrom:
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secretKeyRef:
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name: {{ template "sampleapp.fullname" $root }}-{{ $ref }}
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key: {{ $key }}
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{{- end }}
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{{- end }}
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resources:
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{{ toYaml .Values.resources | indent 12 }}
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{{- if .Values.imagePullSecrets }}
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imagePullSecrets:
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{{- range .Values.imagePullSecrets }}
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- name: {{ . }}
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{{- end}}
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{{- end }}
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{{- with .Values.nodeSelector }}
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nodeSelector:
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{{ toYaml . | indent 8 }}
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{{- end }}
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{{- with .Values.affinity }}
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affinity:
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{{ toYaml . | indent 8 }}
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{{- end }}
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{{- with .Values.tolerations }}
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tolerations:
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{{ toYaml . | indent 8 }}
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{{- end }}

‎github/java/spring/kubernetes/Application/charts/sampleapp/templates/ingress.yaml‎

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{{- if .Values.ingress.enabled -}}
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{{- $fullName := include "sampleapp.fullname" . -}}
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{{- $serviceName := include "sampleapp.name" . -}}
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{{- $servicePort := .Values.service.port -}}
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apiVersion: extensions/v1beta1
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kind: Ingress
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metadata:
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name: {{ $fullName }}
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labels:
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app: {{ $serviceName }}
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release: {{ .Release.Name }}
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heritage: {{ .Release.Service }}
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{{- with .Values.ingress.annotations }}
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annotations:
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{{ toYaml . | indent 4 }}
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{{- end }}
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spec:
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{{- if .Values.ingress.tls }}
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tls:
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{{- range .Values.ingress.tls }}
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- hosts:
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{{- range .hosts }}
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- {{ . }}
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{{- end }}
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secretName: {{ .secretName }}
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{{- end }}
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{{- end }}
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rules:
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- host: {{ .Values.ingress.hostname | quote }}
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http:
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paths:
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- path: /
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backend:
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serviceName: {{ $serviceName }}
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servicePort: {{ $servicePort }}
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{{- end }}

‎github/java/spring/kubernetes/Application/charts/sampleapp/templates/secrets.yaml‎

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{{- $root := . }}
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{{- range $name, $values := .Values.secrets }}
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apiVersion: v1
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kind: Secret
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metadata:
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name: {{ template "sampleapp.fullname" $root }}-{{ $name }}
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data:
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{{- range $key, $value := $values }}
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{{ $key }}: {{ $value | b64enc }}
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{{- end }}
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---
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{{- end }}

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