deployment.yaml

---
apiVersion: v1
kind: Namespace
metadata:
    name: msmtpd
---
apiVersion: v1
kind: ConfigMap
metadata:
    name: msmtpd-config
    namespace: msmtpd
data:
    smtp_user: |
      foo@gmail.com
    smtp_password: |
      gmailpassword
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
    name: msmtpd
    namespace: msmtpd
    labels:
        app: msmtpd
spec:
    serviceName: msmtpd
    replicas: 1
    selector:
        matchLabels:
            app: msmtpd
    template:
        metadata:
            labels:
                app: msmtpd
                name: msmtpd
        spec:
            containers:
            - name: msmtpd
              image: crazymax/msmtpd
              imagePullPolicy: IfNotPresent
              env:
              - name: TZ
                value: Europe/Paris
              - name: PUID
                value: "1500"
              - name: PGID
                value: "1500"
              - name: SMTP_HOST
                value: "smtp.gmail.com"
              - name: SMTP_PORT
                value: "587"
              - name: SMTP_TLS
                value: "on"
              - name: SMTP_STARTTLS
                value: "on"
              - name: SMTP_TLS_CHECKCERT
                value: "on"
              - name: SMTP_AUTH
                value: "on"
              - name: SMTP_USER_FILE
                value: "/run/secrets/smtp_user"
              - name: SMTP_PASSWORD_FILE
                value: "/run/secrets/smtp_password"
              - name: SMTP_DOMAIN
                value: "localhost"
              volumeMounts:
                - name: msmtpd-config-user
                  mountPath: /run/secrets/smtp_user
                  subPath: smtp_user
                - name: msmtpd-config-password
                  mountPath: /run/secrets/smtp_password
                  subPath: smtp_password
            volumes:
              - name: msmtpd-config-user
                configMap:
                    name: msmtpd-config
              - name: msmtpd-config-password
                configMap:
                    name: msmtpd-config
---
apiVersion: v1
kind: Service
metadata:
    name: smtp
    namespace: msmtpd
spec:
    selector:
        app: msmtpd
    ports:
    - port: 25
      targetPort: 2500
      protocol: TCP
      name: smtp