Can I switch app container between 2 VPN container without stopping/re-deploying ?

[astrung]

I have created 2 vpn container: blue_vpn and green_vpn with 2 open vpn config file on same server:

docker run -d -t --rm --cap-add=NET_ADMIN --name blue_vpn --device /dev/net/tun:/dev/net/tun -e VPN_SERVICE_PROVIDER=custom -e VPN_TYPE=openvpn -v /home/blue_vpn.ovpn:/gluetun/config.conf:ro -e OPENVPN_CUSTOM_CONFIG=/gluetun/config.conf qmcgaw/gluetun

docker run -d -t --rm --cap-add=NET_ADMIN --name green_vpn --device /dev/net/tun:/dev/net/tun -e VPN_SERVICE_PROVIDER=custom -e VPN_TYPE=openvpn -v /home/green_vpn.ovpn:/gluetun/config.conf:ro -e OPENVPN_CUSTOM_CONFIG=/gluetun/config.conf qmcgaw/gluetun

Now I have an app container, and I want to switch between 2 VPN after starting it. For example, I start my app container with blue_vpn by option: --network=container:blue_vpn:

docker run --name=app_container -t -d --cap-add=NET_ADMIN --network=container:blue_vpn debian:bullseye

After one day, now I need to switch my app_container to green_vpn without restart or stop/delete current app_container. Stopping or re-redeploying my app may interrupt processing.

I have tried to find on stackoverflow, docker forum but nothing help. Can we have any solution? Please help