Make instance listen by default only on local interface

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

config/dev.exs

@@ -8,6 +8,7 @@ import Config
 # with brunch.io to recompile .js and .css sources.
 config :mobilizon, Mobilizon.Web.Endpoint,
   http: [
+    ip: {127, 0, 0, 1},
     port: 4000
   ],
   url: [

priv/templates/config.template.eex

@@ -5,7 +5,10 @@ import Config
 config :mobilizon, Mobilizon.Web.Endpoint,
    server: <%= release %>,
    url: [host: "<%= instance_domain %>"],
-   http: [port: <%= listen_port %>],
+   http: [
+     ip: {0, 0, 0, 0, 0, 0, 0, 1},
+     port: <%= listen_port %>
+    ],
    secret_key_base: "<%= instance_secret %>"
 
 config :mobilizon, Mobilizon.Web.Auth.Guardian,