[change] Improved default site name and OpenVPN template

- Automatically update default site with DASHBOARD_DOMAIN
- Improved OpenVPN template:
  - Updated ciphers
  - Added login to OpenVPN template

Author: pandafy

images/openwisp_dashboard/load_init_data.py

@@ -124,7 +124,7 @@ def create_default_vpn_template(vpn):
     if Template.objects.filter(vpn=vpn).exists():
         return Template.objects.get(vpn=vpn)
 
-    template = Template.objects.create(
+    template = Template(
         auto_cert=True,
         name=template_name,
         type="vpn",
@@ -133,6 +133,11 @@ def create_default_vpn_template(vpn):
         vpn=vpn,
         default=True,
     )
+    # The config field is auto-generated on full_clean()
+    template.full_clean()
+    if template.config.get("openvpn"):
+        template.config["openvpn"][0]["log"] = "/var/log/tun0.log"
+    # Verify that the config is still valid.
     template.full_clean()
     template.save()
     return template
@@ -196,6 +201,26 @@ def create_ssh_key_template():
     return template
 
 
+def update_default_site():
+    """Update default site with DASHBOARD_DOMAIN."""
+    if "django.contrib.sites" in settings.INSTALLED_APPS:
+        from django.contrib.sites.models import Site
+
+        try:
+            site = Site.objects.get(pk=settings.SITE_ID)
+        except Site.DoesNotExist:
+            # Optionally log a message here if desired
+            return
+        dashboard_domain = os.environ.get("DASHBOARD_DOMAIN", "")
+        if (
+            site.name == "example.com" or site.domain == "example.com"
+        ) and dashboard_domain:
+            site.name = dashboard_domain
+            site.domain = dashboard_domain
+            site.full_clean()
+            site.save()
+
+
 def create_default_topology(vpn):
     """Creates Topology object for the default VPN."""
     if vpn.backend == "openwisp_controller.vpn_backends.OpenVpn":
@@ -239,6 +264,7 @@ def create_default_topology(vpn):
     redis_client = redis.Redis.from_url(settings.CACHES["default"]["LOCATION"])
 
     create_admin()
+    update_default_site()
     # Steps for creating new vpn client template with all the
     # required objects (CA, Certificate, VPN Server).
     is_vpn_enabled = os.environ.get("VPN_DOMAIN", "") != ""

images/openwisp_dashboard/openvpn.json

@@ -11,7 +11,9 @@
       "local": "",
       "comp_lzo": "no",
       "auth": "SHA1",
-      "cipher": "none",
+      "data_ciphers": "AES-128-GCM:none",
+      "data_ciphers_fallback": "AES-128-GCM",
+      "cipher": "AES-128-GCM",
       "engine": "",
       "ca": "ca.pem",
       "cert": "cert.pem",