clarify INTERFACE variable

Author: aptalca

README.md

@@ -59,7 +59,7 @@ docker create \
   -e PUID=1001 \
   -e PGID=1001 \
   -e TZ=Europe/London \
-  -e INTERFACE=<interface name> `#optional` \
+  -e INTERFACE=eth0 `#optional` \
   -p 943:943 \
   -p 9443:9443 \
   -p 1194:1194/udp \
@@ -86,7 +86,7 @@ services:
       - PUID=1001
       - PGID=1001
       - TZ=Europe/London
-      - INTERFACE=<interface name> #optional
+      - INTERFACE=eth0 #optional
     volumes:
       - <path to data>:/config
     ports:
@@ -109,7 +109,7 @@ Container images are configured using parameters passed at runtime (such as thos
 | `-e PUID=1001` | for UserID - see below for explanation |
 | `-e PGID=1001` | for GroupID - see below for explanation |
 | `-e TZ=Europe/London` | Specify a timezone to use EG Europe/London. |
-| `-e INTERFACE=<interface name>` | Only needed if run in host networking (default is eth0). |
+| `-e INTERFACE=eth0` | With bridge networking, leave it as eth0 (or don't include at all), if host or macvlan, set it to your host's network interface. |
 | `-v /config` | Where openvpn-as should store configuration files. |
 
 ## User / Group Identifiers

readme-vars.yml

@@ -38,7 +38,7 @@ cap_add_param_vars:
 # optional container parameters
 opt_param_usage_include_env: true
 opt_param_env_vars:
-  - { env_var: "INTERFACE", env_value: "<interface name>", desc: "Only needed if run in host networking (default is eth0)." }
+  - { env_var: "INTERFACE", env_value: "eth0", desc: "With bridge networking, leave it as eth0 (or don't include at all), if host or macvlan, set it to your host's network interface." }
 opt_param_usage_include_vols: false
 opt_param_usage_include_ports: false
 opt_param_device_map: false