Skip to content

Ankr-network/opennet

Folders and files

NameName
Last commit message
Last commit date

Latest commit

 

History

16 Commits
 
 
 
 
 
 
 
 
 
 
 
 

Repository files navigation

Opennet

Motivation

Our product design requires Kubernetes to support unique IP address segments, such as public network IPs, and these unique IP address segments can only be bound to specified machines. We searched for many CNI plugins in the community, and did not find a suitable one, so we decided Develop new CNI plugin to meet our application scenarios.

Introduce

Opennet is an address assignment plugin developed based on Multus-cni

Features

  • IP segment management
  • IP binding to specific server
  • IP cluster level unified management
  • Support real-time IP configuration update, effective in real time
  • Support IP allocation query
  • IP statistics

How to

  1. install multus-cni follow it's doc

  2. install opennet

    a. install daemonset

     kubectl apply -f components/deploy/daemonset-install.yaml

    create etcd secret, please modify pem file name

     kubectl  -n kube-system create secret generic etcd-certs --from-file=/etc/etcd/ssl/etcd.pem --from-file=/etc/etcd/ssl/etcd-key.pem --from-file=/etc/etcd/ssl/etcd-root-ca.pem

    b. configure CNI net configuration, save to cni.yaml

    apiVersion: "k8s.cni.cncf.io/v1"
    kind: NetworkAttachmentDefinition
    metadata:
      name: opennet-demo
      namespace: kube-system
    spec:
      config: '{
        "cniVersion": "0.3.1",
        "name": "opennet-demo",
        "type": "macvlan",
        "master": "eno1",
        "mode": "vepa",
        "ipam": {
        "type": "opennet",
        "range": [
           {
              "subnet":"192.168.188.0/26",
              "start":"192.168.188.151",
              "end":"192.168.188.181",
              "gw":"192.168.188.190",
              "dev":"80197"
           },
           {
              "subnet":"192.168.188.0/26",
              "start":"192.168.188.182",
              "end":"192.168.188.186",
              "gw":"192.168.188.190",
              "dev":"80366"
           }
         ],
        "dns":{
          "nameserver":[
            "8.8.8.8",
            "8.8.4.4"
          ]
     }
     }
    }'
    
    kubectl -n kube-system apply -f cni.yaml

    c. configure every device number into /etc/cni/net.d/opennet-devno

    if every IP segment fit all machine, then can set the opennet-devno as the same device number.

    d. example, save to test.yaml

    apiVersion: v1
    kind: Pod
    metadata:
      annotations:
        v1.multus-cni.io/default-network: kube-system/opennet-demo
      name: test-tools
      labels:
        name: myapp
    spec:
      containers:
        - name: myapp
          image: alpine:latest
          command:
            - /bin/sleep
            - 1d
    
    kubectl apply test.yaml

Contributor

Waiting for additional instructions

Thanks

Thanks to the multus-cni team for developing such an excellent network plugin

Support

If you need help, please file an issue, we will answer or satisfy in the first time

About

cni plugin for assign Pod IP , cluster level

Resources

License

Security policy

Stars

Watchers

Forks

Packages

No packages published

Contributors 3

  •  
  •  
  •