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README.md |
MULTUS CNI plugin
Please read CNI for more information on container networking.
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Multus is the latin word for “Multi”
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As name suggest, it act as the Multi plugin in the Kubernetes and provides the Multi interface support in pod
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It is generic to run with other plugins like ptp, local-host, calico and flannel, with different IPAM and networks.
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It contact between the container runtime and other plugins, and it isn't having any of it own net configuration, it call other plugins like flannel/calico to do the real net conf job.
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Multus reuse the concept of invoking the delegates in the flannel, it group the multi plugins into delegates and invoke each other in the sequential order, according to the JSON scheme in the cni configuration.
Build
This plugin requires Go 1.5+ to build.
Go 1.5 users will need to set GO15VENDOREXPERIMENT=1
to get vendored dependencies. This flag is set by default in 1.6.
#./build
Network configuration reference
name
(string, required): the name of the networktype
(string, required): "multus"delegate
(([]map,required): number of delegate details in the Multusmasterplugin
(bool,required): master plugin to report back to container
Usage
Given the following network configuration:
# tee /etc/cni/net.d/multus-cni.conf <<-'EOF'
{
"name": "minion1-multus-demo-network",
"type": "multus",
"delegates": [
{
"type": "sriov",
"if0": "enp12s0f0",
"if0name": "north0",
"createmac": true,
"ipam": {
"type": "host-local",
"subnet": "10.56.217.0/24",
"rangeStart": "10.56.217.131",
"rangeEnd": "10.56.217.190",
"routes": [
{ "dst": "0.0.0.0/0" }
],
"gateway": "10.56.217.1"
}
},
{
"type": "sriov",
"if0": "enp12s0f1",
"if0name": "south0",
"ipam": {
"type": "host-local",
"subnet": "10.56.217.0/24",
"rangeStart": "10.56.217.100",
"rangeEnd": "10.56.217.130",
"routes": [
{ "dst": "0.0.0.0/0" }
],
"gateway": "10.56.217.1"
}
},
{
"type": "flannel",
"masterplugin": true,
"delegate": {
"isDefaultGateway": true
}
}
]
}
EOF
Testing the Multus CNI with docker
Make sure that the multus, sriov and flannel binaries are in the /opt/cni/bin directories and follow the steps as mention in the CNI