5cb3a5e897
It may happen that you want to map a port only in one IP family. It can be achieved using the unspecified IP address of the corresponding IP family as HostIP i.e.: podman run --rm --name some-nginx -d -p 0.0.0.0:8080:80 nginx The problem is that current implementation considers the unspecified address valid and appends it to the iptables rule: -A CNI-DN-60380cb3197c5457ed6ba -s 10.88.0.0/16 -d 0.0.0.0/32 -p tcp -m tcp --dport 8080 -j CNI-HOSTPORT-SETMARK This rule is not forwarding the traffic to the mapped port. We should use the unspecified address only to discriminate the IP family of the port mapping, but not use it to filter the dst. Signed-off-by: Antonio Ojea <antonio.ojea.garcia@gmail.com>
plugins
Some CNI network plugins, maintained by the containernetworking team. For more information, see the individual READMEs.
Read CONTRIBUTING for build and test instructions.
Plugins supplied:
Main: interface-creating
bridge: Creates a bridge, adds the host and the container to it.ipvlan: Adds an ipvlan interface in the container.loopback: Set the state of loopback interface to up.macvlan: Creates a new MAC address, forwards all traffic to that to the container.ptp: Creates a veth pair.vlan: Allocates a vlan device.host-device: Move an already-existing device into a container.
Windows: windows specific
win-bridge: Creates a bridge, adds the host and the container to it.win-overlay: Creates an overlay interface to the container.
IPAM: IP address allocation
dhcp: Runs a daemon on the host to make DHCP requests on behalf of the containerhost-local: Maintains a local database of allocated IPsstatic: Allocate a static IPv4/IPv6 addresses to container and it's useful in debugging purpose.
Meta: other plugins
flannel: Generates an interface corresponding to a flannel config filetuning: Tweaks sysctl parameters of an existing interfaceportmap: An iptables-based portmapping plugin. Maps ports from the host's address space to the container.bandwidth: Allows bandwidth-limiting through use of traffic control tbf (ingress/egress).sbr: A plugin that configures source based routing for an interface (from which it is chained).firewall: A firewall plugin which uses iptables or firewalld to add rules to allow traffic to/from the container.
Sample
The sample plugin provides an example for building your own plugin.