The reason is that /etc/network/interfaces file is in base image. After booting,
docker-swss is not ready and thus the empty VLAN interfaces cannot be created
when the brctl is pointing to the binary inside the swss docker.
Add the bridge-utils into the base image and add bridge_ports none to the
/etc/network/interfaces file so that after boot-up the empty VLAN interfaces
will be created to let the members to join later.
Signed-off-by: Shuotian Cheng <shuche@microsoft.com>
* [files]: Add allow-hotplug stanza to interfaces files
- start interface <interface_name> when the kernel detects
a hotplug event from the interface
ref: https://www.debian.org/doc/manuals/debian-reference/ch05.en.html
* [interfaces]: Combine vlan_interfaces and lag_interfaces file and add allow-hotplug
1. Remove vlan_interfaces and lag_interfaces file and members in teamd.j2
2. Add all interfaces to /etc/network/interfaces file
3. Add allow-hotplug stanza
4. Add up <command> to automatically add interfaces to VLAN and LAG
5. Add unique_name filter to minigraph.py to remove duplicate interface names
6. Add brctl to base image
7. Update sonic-swss submodule
Signed-off-by: Shuotian Cheng <shuche@microsoft.com>
