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Support for local network route

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This commit is contained in:
Lukas Loesche
2016-05-30 18:40:37 +02:00
parent 62adb82af4
commit bb7d73ce94
2 changed files with 10 additions and 1 deletions
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3
README.md
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@@ -55,6 +55,7 @@ By default a folder named transmission-home will also be created under /data, th
|----------|----------|-------| |----------|----------|-------|
|`OPENVPN_CONFIG` | Sets the OpenVPN endpoint to connect to. | `OPENVPN_CONFIG=UK Southampton`| |`OPENVPN_CONFIG` | Sets the OpenVPN endpoint to connect to. | `OPENVPN_CONFIG=UK Southampton`|
|`OPENVPN_OPTS` | Will be passed to OpenVPN on startup | See [OpenVPN doc](https://openvpn.net/index.php/open-source/documentation/manuals/65-openvpn-20x-manpage.html) | |`OPENVPN_OPTS` | Will be passed to OpenVPN on startup | See [OpenVPN doc](https://openvpn.net/index.php/open-source/documentation/manuals/65-openvpn-20x-manpage.html) |
|`LOCAL_NETWORK` | Sets the local network that should have access. | `LOCAL_NETWORK=192.168.0.0/24`|
### Transmission configuration options ### Transmission configuration options
@@ -81,7 +82,7 @@ This is because the VPN is active, and since docker is running in a different ip
to your request will be treated as "non-local" traffic and therefore be routed out through the VPN interface. to your request will be treated as "non-local" traffic and therefore be routed out through the VPN interface.
### How to fix this ### How to fix this
There are several ways to fix this. You can pipe and do fancy iptables or ip route configurations on the host and in the container. But I found that the simplest solution is just to proxy my traffic. There are several ways to fix this. The container supports the `LOCAL_NETWORK` environment variable. For instance if your local network uses the IP range 192.168.0.0/24 you would pass `-e LOCAL_NETWORK=192.168.0.0/24`. Alternatively just proxy the traffic.
#### Use preconfigured image #### Use preconfigured image
You can use the proxy image haugene/transmission-openvpn-proxy that comes with a config that is configurable through environment variables. You can use the proxy image haugene/transmission-openvpn-proxy that comes with a config that is configurable through environment variables.

8
openvpn/start.sh
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@@ -47,4 +47,12 @@ dockerize -template /etc/transmission/environment-variables.tmpl:/etc/transmissi
TRANSMISSION_CONTROL_OPTS="--script-security 2 --up /etc/transmission/start.sh --down /etc/transmission/stop.sh" TRANSMISSION_CONTROL_OPTS="--script-security 2 --up /etc/transmission/start.sh --down /etc/transmission/stop.sh"
if [ -n "${LOCAL_NETWORK-}" ]; then
eval $(/sbin/ip r l m 0.0.0.0 | awk '{if($5!="tun0"){print "GW="$3"\nINT="$5; exit}}')
if [ -n "${GW-}" -a -n "${INT-}" ]; then
echo "adding route to local network $LOCAL_NETWORK via $GW dev $INT"
/sbin/ip r a "$LOCAL_NETWORK" via "$GW" dev "$INT"
fi
fi
exec openvpn $TRANSMISSION_CONTROL_OPTS $OPENVPN_OPTS --config "$OPENVPN_CONFIG" exec openvpn $TRANSMISSION_CONTROL_OPTS $OPENVPN_OPTS --config "$OPENVPN_CONFIG"