91678f67af
Zun has a new component "zun-cni-daemon" which should be deployed in every compute nodes. It is basically an implementation of CNI (Container Network Interface) that performs the neutron port binding. If users is using the capsule (pod) API, the recommended deployment option is using "cri" as capsule driver. This is basically to use a CRI runtime (i.e. CRI plugin for containerd) for supporting capsules (pods). A CRI runtime needs a CNI plugin which is what the "zun-cni-daemon" provides. The configuration is based on the Zun installation guide [1]. It consits of the following steps: * Configure the containerd daemon in the host. The "zun-compute" container will use grpc to communicate with this service. * Install the "zun-cni" binary at host. The containerd process will invoke this binary to call the CNI plugin. * Run a "zun-cni-daemon" container. The "zun-cni" binary will communicate with this container via HTTP. Relevant patches: Blueprint: https://blueprints.launchpad.net/zun/+spec/add-support-cri-runtime Install guide: https://review.opendev.org/#/c/707948/ Devstack plugin: https://review.opendev.org/#/c/705338/ Kolla image: https://review.opendev.org/#/c/708273/ [1] https://docs.openstack.org/zun/latest/install/index.html Depends-On: https://review.opendev.org/#/c/721044/ Change-Id: I9c361a99b355af27907cf80f5c88d97191193495 |
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