MacVLAN. A network locks the gateway ip preventing to assign it #1447
Description
I am excited about the features you have made in 1.12, so please let me say: thank you guys 😗
Now the lettuce... ;)
First of all, this is the network I have created
docker network rm vlan150
docker network create -d macvlan \
--subnet=10.150.0.0/24 \
--gateway=10.150.0.254 \
-o macvlan_mode=bridge \
-o parent=eth0.150 vlan150
Let me say here, the 10.150.0.254 does not exists in the network.
Now let's start a container on that network:
docker run --net=vlan150 --ip 10.150.0.254\
-it --name server --rm alpine /bin/sh
docker: Error response from daemon: Address already in use.
This is not true. That address is not in use.. So let's circumnavigate that, this way:
docker run --net=vlan150 --cap-add NET_ADMIN \
-it --name server --rm alpine /bin/sh
/ # ifconfig eth0 10.150.0.254 netmask 255.255.255.0
Now that container has the right gateway and every container connected to the vlan150 simply uses that as default gateway and everything work.
Am I missing something basic here? I saw pipeworks but I think it is too much for this simple use case.
Best regards.