feat!: move to a relay only chart

charts/postfix-sendonly/Chart.yaml

@@ -1,5 +1,5 @@
 apiVersion: v2
 name: postfix-sendonly
-description: Sendonly mail services for your cluster
+description: Sendonly relay mail services for your cluster
 type: application
-version: 1.0.2
+version: 2.0.0

charts/postfix-sendonly/README.md

@@ -1,13 +1,14 @@
 # postfix-sendonly
 
-Sendonly mail services for your cluster
+Sendonly relay mail services for your cluster
 
-## Creating a DKIM key
+## Setup
 
-To create the needed DKIM key, follow the instructions in [„Generating a DKIM key“](https://git.mor.re/docker-images/postfix-sendonly#generating-a-dkim-key).
+You need to provide a valid login for your provider. Currently, only submission on port 465 is supported.
 
-You need to deploy this key into the cluster in a secret, specify its name in `.Values.existingSecret`.
-The DKIM private key has to be stored in the key `key`.
+You need to deploy this user credentials into the cluster in a secret, specify its name in `.Values.existingSecret`.
+
+The user name has to be stored in `user`, the password in `password`.
 
 ## Values
 
@@ -18,8 +19,7 @@ The DKIM private key has to be stored in the key `key`.
 | autoscaling.maxReplicas | int | `5` |  |
 | autoscaling.minReplicas | int | `1` |  |
 | autoscaling.targetCPUUtilizationPercentage | int | `80` |  |
-| domain | string | `nil` |  |
-| existingSecret | string | `"postfix-sendonly-dkim"` |  |
+| existingSecret | string | `"postfix-sendonly"` |  |
 | fullnameOverride | string | `""` |  |
 | image.pullPolicy | string | `"IfNotPresent"` |  |
 | image.repository | string | `"registry.git.mor.re/docker-images/postfix-sendonly"` |  |
@@ -29,6 +29,8 @@ The DKIM private key has to be stored in the key `key`.
 | nodeSelector | object | `{}` |  |
 | podAnnotations | object | `{}` |  |
 | podSecurityContext.fsGroup | int | `101` |  |
+| relay.host | string | `"smtp.mailbox.org"` |  |
+| relay.port | int | `465` |  |
 | replicaCount | int | `2` |  |
 | resources | object | `{}` |  |
 | securityContext | object | `{}` |  |

charts/postfix-sendonly/README.md.gotmpl

@@ -2,12 +2,13 @@
 
 {{ template "chart.description" . }}
 
-## Creating a DKIM key
+## Setup
 
-To create the needed DKIM key, follow the instructions in [„Generating a DKIM key“](https://git.mor.re/docker-images/postfix-sendonly#generating-a-dkim-key).
+You need to provide a valid login for your provider. Currently, only submission on port 465 is supported.
 
-You need to deploy this key into the cluster in a secret, specify its name in `.Values.existingSecret`.
-The DKIM private key has to be stored in the key `key`.
+You need to deploy this user credentials into the cluster in a secret, specify its name in `.Values.existingSecret`.
+
+The user name has to be stored in `user`, the password in `password`.
 
 {{ template "chart.sourcesSection" . }}
 

charts/postfix-sendonly/templates/deployment.yaml

@@ -37,8 +37,20 @@ spec:
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
           imagePullPolicy: {{ .Values.image.pullPolicy }}
           env:
-            - name: DOMAIN
-              value: {{ required "You must specify .Values.domain" .Values.domain }}
+            - name: RELAY_HOST
+              value: {{ .Values.relay.host }}
+            - name: RELAY_PORT
+              value: {{ .Values.relay.port | quote }}
+            - name: USER
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.existingSecret }}
+                  key: user
+            - name: PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.existingSecret }}
+                  key: password
           ports:
             - name: smtp
               containerPort: 25
@@ -47,19 +59,10 @@ spec:
             tcpSocket:
               port: smtp
             periodSeconds: 60
-          volumeMounts:
-            - name: dkim-key
-              mountPath: /etc/opendkim/domainkeys/mail.private
-              subPath: key
           {{- with .Values.resources }}
           resources:
             {{- toYaml . | nindent 12 }}
           {{- end }}
-      volumes:
-        - name: dkim-key
-          secret:
-            secretName: {{ .Values.existingSecret }}
-            defaultMode: 0400
       {{- with .Values.nodeSelector }}
       nodeSelector:
         {{- toYaml . | nindent 8 }}

charts/postfix-sendonly/values.yaml

@@ -5,8 +5,11 @@ image:
   pullPolicy: IfNotPresent
   tag: "2022.02.05"
 
-domain: ~
-existingSecret: postfix-sendonly-dkim
+relay:
+  host: smtp.mailbox.org
+  port: 465
+
+existingSecret: postfix-sendonly
 
 imagePullSecrets: []
 nameOverride: ""