multi-networkpolicy APIs
multi-networkpolicy APIs provides API for multi-networkpolicy, the network policy functionality for network attachment definition
Current Status of the Repository
It is now actively developping hence not stable yet. Bug report and feature request are welcome.
Description
Kubernetes provides Network Policies for network security. Currently net-attach-def does not support Network Policies because net-attach-def is CRD, user defined resources, outside of Kubernetes. multi-network policy implements Network Policiy functionality for net-attach-def, by iptables and provies network security for net-attach-def networks.
Current API version / branch
Currently API version and branch are mapped as following. master branch is working version, hence the CRD will be changed sometimes. If you want to have stable API, we recommend to use previous one.
| branch name | API version |
|---|---|
| master | v1beta2 (working version, not fixed) |
| v1beta1 | v1beta1 (fixed) |
Current Implementations
- multi-networkpolicy-iptables supports v1beta1
- multi-networkpolicy-tc supports v1beta1
MultiNetworkPolicy CRD
Macvlan Network Policy CRD
It provides new CRD for Network Policy, MultiNetworkPolicy, to prevent it from conflicting with Kubernetes network policy. Hence user can implement different network policy for net-attach-def from Kubernetes network policy. MultiNetworkPolicy is same scheme from NetworkPolicy (apiVersion: networking.k8s.io/v1), so nothing is different, except for k8s.v1.cni.cncf.io/policy-for annotation.
'policy-for' annotation
k8s.v1.cni.cncf.io/policy-for annotation specifies which net-attach-def is the policy target as comma separated list, as k8s.v1.cni.cncf.io/policy-for: macvlan-net1, macvlan-net3, ipvlan-net1.
Policy Sample
(TBD)
TODO
- Alternative packet processing other than iptables (e.g. xdp)
Contact Us
For any questions about multi-networkpolicy, feel free to ask a question in #k8s-npwg-discussion in the Intel-Corp Slack, or open up a GitHub issue.