first commit

.drone.yml

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+kind: pipeline
+type: docker
+name: default
+
+steps:
+  - name: build-and-push
+    image: plugins/docker
+    settings:
+      repo: registry.your-gitea.com/your-org/mail-autoconfig
+      tags: latest
+      username:
+        from_secret: GITEA_USERNAME
+      password:
+        from_secret: GITEA_TOKEN
+
+  - name: deploy-to-portainer
+    image: curlimages/curl:7.85.0
+    environment:
+      PORTAINER_URL: https://portainer.mail.mifi.holdings
+      PORTAINER_API_KEY:
+        from_secret: PORTAINER_API_KEY
+      ENDPOINT_ID:
+        from_secret: PORTAINER_ENDPOINT_ID   # e.g. "1"
+      STACK_ID:
+        from_secret: PORTAINER_STACK_ID      # the ID of your mailconfig stack
+    commands:
+      - >
+        curl -s -X POST "$PORTAINER_URL/api/stacks/$STACK_ID/file?endpointId=$ENDPOINT_ID&method=string"
+        -H "Authorization: Bearer $PORTAINER_API_KEY"
+        -F "file=@docker-compose.yml"
+
+trigger:
+  branch:
+    - main

.vscode/settings.json

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+{}

Dockerfile

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+FROM python:3.11-slim
+
+WORKDIR /app
+COPY app.py templates/ ./
+
+RUN pip install --no-cache Flask Jinja2 gunicorn
+
+# expose port 80
+CMD ["gunicorn", "-b", "0.0.0.0:80", "app:app"]

app.py

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+from flask import Flask, request, Response
+import jinja2
+
+app = Flask(__name__)
+env = jinja2.Environment(
+    loader=jinja2.FileSystemLoader('templates'),
+    autoescape=jinja2.select_autoescape(['xml'])
+)
+
+@app.route('/mail/config-v1.1.xml')
+def thunderbird_config():
+    domain = request.host.split('.', 1)[1]
+    xml = env.get_template('config-v1.1.xml.j2').render(DOMAIN=domain)
+    return Response(xml, mimetype='application/xml')
+
+@app.route('/Autodiscover/Autodiscover.xml', methods=['POST','GET'])
+def outlook_autodiscover():
+    domain = request.host.split('.', 1)[1]
+    xml = env.get_template('Autodiscover.xml.j2').render(DOMAIN=domain)
+    return Response(xml, mimetype='text/xml')

docker-compose.yml

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+version: "3.7"
+
+services:
+  mail-autoconfig:
+    image: git.mifi.dev/mifi-holdings/mail-autoconfig:latest
+    networks:
+      - traefik
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.mailconfig.rule=HostRegexp(`{sub:autoconfig|autodiscover}.{domain:.+}`)"
+      - "traefik.http.routers.mailconfig.entrypoints=websecure"
+      - "traefik.http.routers.mailconfig.tls.certresolver=letsencrypt"
+      - "traefik.http.services.mailconfig.loadbalancer.server.port=80"
+
+networks:
+  traefik:
+    external: true

templates/Autodiscover.xml.j2

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+<?xml version="1.0" encoding="utf-8"?>
+<Autodiscover xmlns="http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a">
+  <Response>
+    <Account>
+      <AccountType>imap</AccountType>
+      <Action>settings</Action>
+      <Protocol>
+        <Type>IMAP</Type>
+        <Server>mail.mifi.holdings</Server>
+        <Port>993</Port>
+        <DomainRequired>off</DomainRequired>
+        <SSL>on</SSL>
+        <SPA>off</SPA>
+        <AuthRequired>on</AuthRequired>
+        <LoginName>%EMAILADDRESS%</LoginName>
+      </Protocol>
+      <Protocol>
+        <Type>SMTP</Type>
+        <Server>mail.mifi.holdings</Server>
+        <Port>587</Port>
+        <DomainRequired>off</DomainRequired>
+        <SSL>on</SSL>
+        <SPA>off</SPA>
+        <AuthRequired>on</AuthRequired>
+        <LoginName>%EMAILADDRESS%</LoginName>
+      </Protocol>
+    </Account>
+  </Response>
+</Autodiscover>

templates/config-v1.1.xml.j2

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+<?xml version="1.0" encoding="UTF-8"?>
+<clientConfig version="1.1">
+  <emailProvider id="{{ DOMAIN }}">
+    <domain>{{ DOMAIN }}</domain>
+    <incomingServer type="imap">
+      <hostname>mail.mifi.holdings</hostname>
+      <port>993</port>
+      <socketType>SSL</socketType>
+      <authentication>password-cleartext</authentication>
+      <username>%EMAILLOCALPART%</username>
+    </incomingServer>
+    <outgoingServer type="smtp">
+      <hostname>mail.mifi.holdings</hostname>
+      <port>587</port>
+      <socketType>STARTTLS</socketType>
+      <authentication>password-cleartext</authentication>
+      <username>%EMAILLOCALPART%</username>
+    </outgoingServer>
+  </emailProvider>
+</clientConfig>