Multi-host service discovery requires an external solution that can map containers to their host location.
#DOCKER NETWORK DRIVER DRIVER#
The bridge driver is a local scope driver, which means it only provides service discovery, IPAM, and connectivity on a single host. # set the environement varaible DB (-e) and open the container's port 5000 to the host as 8000 (-p)ĭocker run -d -net mybridge -e DB=db -p 8000:5000 -name web myWebImage # Create a container named web (-name) with the myWebImage image on the mybridge network (-net) as a daemon (-d) # Create a container named db (-name) with the myDBImage image on the mybridge network (-net) as a daemon (-d)ĭocker run -d -net mybridge -name db myDBImage After that accessing your server on 8080 will route to your bridge network on port 8080.Įverything in the bridge network is in the private range of “Subnet”: “172.17.0.0/16”įull Example of a fictitious app comprised of a web and db container: It will map the port of your container to the port of your real server (the host network). The bridge network driver, for example, declares itself as local. Each network driver defines itself as using either local or global IP addresses. The network driver (not the IPAM driver) specifies which address space to use. If you want to access them from the outside you have to grant external access by (exposing|mapping) the ports. One other aspect of docker networking we haven’t covered is the concept of global and local address spaces. The bridge driver creates a private network internal to the host so containers on this network can communicate. /var/run/docker.sock (Communicating from container to the daemon).Scale (Number of container for a service) Create a network with the networking maintained by forward53/docker-ovn-driver network driver: docker network create -d forward53/docker-ovn-driver:latest -subnet10.10.10.0/23 -gateway10.10.10.1 -ip-range 10.10.10.32/27 -opt vrfdefault public Next, a user may place a container on the network.It is limited to containers within a single host running the Docker engine. Bridge networking is the most common network type. The most common network types being: bridge, overlay, and macvlan.
#DOCKER NETWORK DRIVER DRIVERS#