Resolve hosts in admin

core/admin/Dockerfile

@@ -1,8 +1,9 @@
 FROM alpine:3.8
 # python3 shared with most images
 RUN apk add --no-cache \
-    python3 py3-pip \
+    python3 py3-pip git \
   && pip3 install --upgrade pip
+RUN pip3 install git+https://github.com/usrpro/MailuStart.git#egg=mailustart
 # Image specific layers under this line
 RUN mkdir -p /app
 WORKDIR /app

core/admin/mailu/configuration.py

@@ -1,5 +1,5 @@
 import os
-
+from mailustart import resolve
 
 DEFAULT_CONFIG = {
     # Specific to the admin UI
@@ -60,7 +60,6 @@ DEFAULT_CONFIG = {
     'POD_ADDRESS_RANGE': None
 }
 
-
 class ConfigManager(dict):
     """ Naive configuration manager that uses environment only
     """
@@ -74,6 +73,12 @@ class ConfigManager(dict):
     def __init__(self):
         self.config = dict()
 
+    def resolve_host(self):
+        self.config['HOST_IMAP'] = resolve(self.config['HOST_IMAP'])
+        self.config['HOST_POP3'] = resolve(self.config['HOST_POP3'])
+        self.config['HOST_AUTHSMTP'] = resolve(self.config['HOST_AUTHSMTP'])
+        self.config['HOST_SMTP'] = resolve(self.config['HOST_SMTP'])
+
     def __coerce_value(self, value):
         if isinstance(value, str) and value.lower() in ('true','yes'):
             return True
@@ -88,6 +93,7 @@ class ConfigManager(dict):
             key: self.__coerce_value(os.environ.get(key, value))
             for key, value in DEFAULT_CONFIG.items()
         })
+        self.resolve_host()
 
         # automatically set the sqlalchemy string
         if self.config['DB_FLAVOR']:

core/admin/mailu/internal/nginx.py

@@ -2,7 +2,6 @@ from mailu import models
 from flask import current_app as app
 
 import re
-import socket
 import urllib
 
 
@@ -89,5 +88,4 @@ def get_server(protocol, authenticated=False):
             hostname, port = extract_host_port(app.config['HOST_AUTHSMTP'], 10025)
         else:
             hostname, port = extract_host_port(app.config['HOST_SMTP'], 25)
-    address = socket.gethostbyname(hostname)
-    return address, port
+    return hostname, port

core/nginx/config.py

@@ -14,10 +14,14 @@ with open("/etc/resolv.conf") as handle:
     content = handle.read().split()
     args["RESOLVER"] = content[content.index("nameserver") + 1]
 
-args["HOST_WEBMAIL"] = resolve(args.get("HOST_WEBMAIL", "webmail"))
 args["HOST_ADMIN"] = resolve(args.get("HOST_ADMIN", "admin"))
-args["HOST_WEBDAV"] = resolve(args.get("HOST_WEBDAV", "webdav:5232"))
 args["HOST_ANTISPAM"] = resolve(args.get("HOST_ANTISPAM", "antispam:11334"))
+args["HOST_WEBMAIL"] = args.get("HOST_WEBMAIL", "webmail")
+if args["WEBMAIL"] != "none":
+    args["HOST_WEBMAIL"] = resolve(args.get("HOST_WEBMAIL"))
+args["HOST_WEBDAV"] = args.get("HOST_WEBDAV", "webdav:5232")
+if args["WEBDAV"] != "none":
+    args["HOST_WEBDAV"] = resolve(args.get("HOST_WEBDAV"))
 
 # TLS configuration
 cert_name = os.getenv("TLS_CERT_FILENAME", default="cert.pem")