A: virtual NIC on the VM B: the tap device on the VM qbr is the linux bridge device to connect VM's NIC with br-int (workaround to support openstack security group) C: attach the firewall bridge to the integration-bridge (br-int)
Compute host: integration bridge (D,E):
The integration bridge, br-int, performs VLAN tagging and un-tagging for traffic coming from and to your instances D: attach the firewall bridge to the integration-bridge (br-int) E: attach the integration-bridge to the bridge-tunnel
The tunnel bridge translates VLAN-tagged traffic from the integration bridge into GRE tunnels.
Network host: integration bridge
The integration bridge on the network controller serves to connect instances to network services, such as routers and DHCP servers. It is like the network switch.
Network host: DHCP server (O,P):
DHCP is used to allocate/manage the IP address.
Network host: Router (M,N):
works as a router to the external network. A Neutron router is a network namespace with a set of routing tables and iptables rules that performs the routing between subnets.
- docker ps: list the docker containers - docker logs: check the docker’s standard output - docker stop: stop the docker container - docker start: start the docker container - docker version: list the docker client/GO version - docker top [container]: check the docker’s process - docker rm container: remove the docker - docker images: list the local docker images - docker pull [image]: pull down the docker images - docker search [image]: search docker image in the docker hub - docker run –d [container]: run the docker as a daemon.
