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feat(charts): add helm chart for traefik-errors
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‎charts/traefik-errors/Chart.yaml

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apiVersion: v2
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type: application
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name: traefik-errors
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description: A Helm chart for custom traefik error pages
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version: 0.0.1
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appVersion: "0.0.0"

‎charts/traefik-errors/templates/NOTES.txt

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1. Get the application URL by running these commands:
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{{- if contains "NodePort" .Values.service.type }}
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export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "traefik-errors.fullname" . }})
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export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
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echo http://$NODE_IP:$NODE_PORT
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{{- else if contains "LoadBalancer" .Values.service.type }}
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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 --namespace {{ .Release.Namespace }} svc -w {{ include "traefik-errors.fullname" . }}'
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export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "traefik-errors.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
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echo http://$SERVICE_IP:{{ .Values.ports.http.port }}
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{{- else if contains "ClusterIP" .Values.service.type }}
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export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "traefik-errors.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
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export CONTAINER_PORT=$(kubectl get pod --namespace {{ .Release.Namespace }} $POD_NAME -o jsonpath="{.spec.containers[0].ports[0].containerPort}")
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echo "Visit http://127.0.0.1:8080 to use your application"
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kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:$CONTAINER_PORT
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{{- end }}

‎charts/traefik-errors/templates/_helpers.tpl

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{{/*
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Expand the name of the chart.
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*/}}
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{{- define "traefik-errors.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 "traefik-errors.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 "traefik-errors.chart" -}}
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{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
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{{- end }}
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{{/*
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Common labels
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*/}}
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{{- define "traefik-errors.labels" -}}
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helm.sh/chart: {{ include "traefik-errors.chart" . }}
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{{ include "traefik-errors.selectorLabels" . }}
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{{- if .Chart.AppVersion }}
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app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
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{{- end }}
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app.kubernetes.io/managed-by: {{ .Release.Service }}
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{{- end }}
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{{/*
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Selector labels
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*/}}
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{{- define "traefik-errors.selectorLabels" -}}
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app.kubernetes.io/name: {{ include "traefik-errors.name" . }}
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app.kubernetes.io/instance: {{ .Release.Name }}
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{{- end }}
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{{/*
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Create the name of the service account to use
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*/}}
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{{- define "traefik-errors.serviceAccountName" -}}
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{{- default "default" .Values.serviceAccount.name }}
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{{- end }}

‎charts/traefik-errors/templates/deployment.yaml

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{{- if .Values.deployment.enabled -}}
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: {{ include "traefik-errors.fullname" . }}
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labels:
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{{- include "traefik-errors.labels" . | nindent 4 }}
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{{- with .Values.deployment.labels }}
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{{ toYaml . | indent 4 }}
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{{- end }}
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spec:
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{{- if .Values.deployment.replicas }}
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replicas: {{ .Values.deployment.replicas }}
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{{- end }}
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selector:
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matchLabels:
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{{- include "traefik-errors.selectorLabels" . | nindent 6 }}
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template:
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metadata:
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{{- with .Values.deployment.annotations }}
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annotations:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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labels:
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{{- include "traefik-errors.selectorLabels" . | nindent 8 }}
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spec:
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serviceAccountName: {{ include "traefik-errors.serviceAccountName" . }}
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containers:
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- name: {{ .Chart.Name }}
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image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
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imagePullPolicy: {{ .Values.image.pullPolicy }}
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ports:
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{{- if .Values.ports.http.enabled }}
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- name: http
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containerPort: {{ .Values.ports.http.port }}
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protocol: TCP
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{{- end }}
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env:
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{{- range $i, $val := .Values.env }}
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- name: {{ $val.name | quote }}
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value: {{ $val.value | quote }}
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{{- end }}
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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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readinessProbe:
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httpGet:
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path: /
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port: http
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resources: {{ if not .Values.resources -}}{}{{- end }}
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{{- if .Values.resources }}
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{{- toYaml .Values.resources | nindent 12 }}
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{{- end }}
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{{- end }}

‎charts/traefik-errors/templates/service.yaml

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{{- if .Values.service.enabled -}}
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apiVersion: v1
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kind: Service
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metadata:
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name: {{ include "traefik-errors.fullname" . }}
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labels:
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{{- include "traefik-errors.labels" . | nindent 4 }}
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{{- with .Values.service.labels }}
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{{ toYaml . | indent 4 }}
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{{- end }}
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{{- with .Values.deployment.annotations }}
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annotations:
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{{- toYaml . | nindent 4 }}
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{{- end }}
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spec:
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type: {{ .Values.service.type }}
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ports:
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{{- if .Values.ports.http.enabled }}
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- port: {{ .Values.ports.http.port }}
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targetPort: http
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protocol: TCP
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name: http
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{{- end }}
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selector:
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{{- include "traefik-errors.selectorLabels" . | nindent 4 }}
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{{- end }}

‎charts/traefik-errors/templates/tests/test-connection.yaml

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apiVersion: v1
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kind: Pod
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metadata:
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name: "{{ include "traefik-errors.fullname" . }}-test-connection"
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labels:
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{{- include "traefik-errors.labels" . | nindent 4 }}
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annotations:
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"helm.sh/hook": test
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spec:
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containers:
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- name: wget
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image: busybox
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command: ['wget']
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args: ['{{ include "traefik-errors.fullname" . }}:{{ .Values.ports.http.port }}']
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restartPolicy: Never

‎charts/traefik-errors/values.yaml

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image:
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repository: pascaliske/traefik-errors
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tag: latest
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pullPolicy: IfNotPresent
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nameOverride: ''
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fullnameOverride: ''
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deployment:
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enabled: true
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kind: Deployment
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replicas: 1
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annotations: {}
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labels: {}
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service:
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enabled: true
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type: ClusterIP
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annotations: {}
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labels: {}
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env:
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- name: TZ
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value: UTC
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ports:
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http:
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enabled: true
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port: 8080
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protocol: TCP
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serviceAccount:
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name: ''
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resources: {}
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# requests:
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# cpu: 100m
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# memory: 128Mi
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# limits:
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# cpu: 100m
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# memory: 128Mi

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