master
Marius Ensrud 3 years ago
parent a9a1322a9c
commit 02972420b9

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apiVersion: v2
name: mail-relay
description: A Helm chart for Kubernetes
# A chart can be either an 'application' or a 'library' chart.
#
# Application charts are a collection of templates that can be packaged into versioned archives
# to be deployed.
#
# Library charts provide useful utilities or functions for the chart developer. They're included as
# a dependency of application charts to inject those utilities and functions into the rendering
# pipeline. Library charts do not define any templates and therefore cannot be deployed.
type: application
# This is the chart version. This version number should be incremented each time you make changes
# to the chart and its templates, including the app version.
# Versions are expected to follow Semantic Versioning (https://semver.org/)
version: 0.2.0
# This is the version number of the application being deployed. This version number should be
# incremented each time you make changes to the application. Versions are not expected to
# follow Semantic Versioning. They should reflect the version the application is using.
# It is recommended to use it with quotes.
appVersion: "0.2.0"

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

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

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apiVersion: v1
kind: ConfigMap
metadata:
name: {{ include "mail-relay.fullname" . }}
labels:
{{- include "mail-relay.labels" . | nindent 4 }}
data:
sasl_passwd: |
{{- toYaml .Values.config.sasl_passwd | nindent 4 }}
transport: |
{{- toYaml .Values.config.transport | nindent 4 }}
update_transport.sh: |
#!/bin/sh
postmap /etc/postfix/transport
postconf -e "transport_maps = hash:/etc/postfix/transport"
postmap /etc/postfix/sasl_passwd

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apiVersion: apps/v1
kind: Deployment
metadata:
name: {{ include "mail-relay.fullname" . }}
labels:
{{- include "mail-relay.labels" . | nindent 4 }}
spec:
replicas: {{ .Values.replicaCount }}
selector:
matchLabels:
{{- include "mail-relay.selectorLabels" . | nindent 6 }}
template:
metadata:
{{- with .Values.podAnnotations }}
annotations:
{{- toYaml . | nindent 8 }}
{{- end }}
labels:
{{- include "mail-relay.selectorLabels" . | nindent 8 }}
spec:
{{- with .Values.imagePullSecrets }}
imagePullSecrets:
{{- toYaml . | nindent 8 }}
{{- end }}
serviceAccountName: {{ include "mail-relay.serviceAccountName" . }}
securityContext:
{{- toYaml .Values.podSecurityContext | nindent 8 }}
containers:
- name: {{ .Chart.Name }}
securityContext:
{{- toYaml .Values.securityContext | nindent 12 }}
image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
imagePullPolicy: {{ .Values.image.pullPolicy }}
ports:
- name: smtp
containerPort: 587
protocol: TCP
env:
- name: ALLOWED_SENDER_DOMAINS
value: {{ .Values.env.ALLOWED_SENDER_DOMAINS | quote }}
- name: HOSTNAME
value: {{ .Values.env.HOSTNAME | quote }}
- name: TZ
value: {{ .Values.env.TZ | quote }}
resources:
{{- toYaml .Values.resources | nindent 12 }}
volumeMounts:
- name: config-volume
mountPath: /etc/postfix/
subpath: transport
- name: config-volume
mountPath: /etc/postfix/
subpath: sasl_passwd
{{- with .Values.nodeSelector }}
nodeSelector:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.affinity }}
affinity:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.tolerations }}
tolerations:
{{- toYaml . | nindent 8 }}
{{- end }}
volumes:
- name: config-volume
configMap:
name: config

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apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: np-{{ include "mail-relay.fullname" . }}
labels:
{{- include "mail-relay.labels" . | nindent 4 }}
spec:
podSelector:
matchLabels:
app.kubernetes.io/name: {{ include "mail-relay.name" . }}
policyTypes:
- Ingress
ingress:
- ports:
- port: 587

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apiVersion: v1
kind: Service
metadata:
name: {{ include "mail-relay.fullname" . }}
labels:
{{- include "mail-relay.labels" . | nindent 4 }}
spec:
type: {{ .Values.service.type }}
ports:
- port: {{ .Values.service.port }}
targetPort: smtp
protocol: TCP
name: smtp
selector:
{{- include "mail-relay.selectorLabels" . | nindent 4 }}

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{{- if .Values.serviceAccount.create -}}
apiVersion: v1
kind: ServiceAccount
metadata:
name: {{ include "mail-relay.serviceAccountName" . }}
labels:
{{- include "mail-relay.labels" . | nindent 4 }}
{{- with .Values.serviceAccount.annotations }}
annotations:
{{- toYaml . | nindent 4 }}
{{- end }}
{{- end }}

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

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# Default values for mail-relay.
# This is a YAML-formatted file.
# Declare variables to be passed into your templates.
replicaCount: 1
image:
repository: boky/postfix
pullPolicy: IfNotPresent
# Overrides the image tag whose default is the chart appVersion.
tag: "latest"
imagePullSecrets: []
nameOverride: ""
fullnameOverride: ""
serviceAccount:
# Specifies whether a service account should be created
create: true
# Annotations to add to the service account
annotations: {}
# The name of the service account to use.
# If not set and create is true, a name is generated using the fullname template
name: ""
config:
sasl_passwd: {}
transport: {}
update_transport.sh: {}
env:
ALLOWED_SENDER_DOMAINS: "domain.local"
HOSTNAME: "relay.domain.local"
TZ: "Europe/Oslo"
podAnnotations: {}
podSecurityContext: {}
# fsGroup: 2000
securityContext: {}
# capabilities:
# drop:
# - ALL
# readOnlyRootFilesystem: true
# runAsNonRoot: true
# runAsUser: 1000
service:
type: ClusterIP
port: 587
resources:
# We usually recommend not to specify default resources and to leave this as a conscious
# choice for the user. This also increases chances charts run on environments with little
# resources, such as Minikube. If you do want to specify resources, uncomment the following
# lines, adjust them as necessary, and remove the curly braces after 'resources:'.
limits:
cpu: 250m
memory: 128Mi
requests:
cpu: 100m
memory: 64Mi
nodeSelector: {}
tolerations: []
affinity: {}
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