docs/development/gapanalysis/gap-analysis-kubernetes-v1.5.rst

   1 .. This work is licensed under a Creative Commons Attribution 4.0 International
   2 .. License.http://creativecommons.org/licenses/by/4.0
   3 .. (c) Xuan Jia (China Mobile)
   4
   5 ================================================
   6 OpenRetriever Gap Analysis with Kubernetes v1.5
   7 ================================================
   8
   9 This section provides users with OpenRetriever gap analysis regarding feature
  10 requirement with Kubernetes Official Release. The following table lists the use
  11 cases / feature requirements of container integrated functionality, and its gap
  12 analysis with Kubernetes Official Release.
  13
  14 .. table::
  15   :class: longtable
  16
  17   +-----------------------------------------------------------+-------------------+-----------------------------------------------------------------------------------------------------+
  18   |Use Case / Requirement                                     |Supported in v1.5  |Notes                                                                                                |
  19   +===========================================================+===================+=====================================================================================================+
  20   |Manage conainter and virtual machine in the same platform. |No                 | There are some ways how Kubernetes could manage VM-s:                                               |
  21   |                                                           |                   |                                                                                                     |
  22   |                                                           |                   | 1. `Kubevirt <https://github.com/kubevirt/kubevirt>`_                                               |
  23   |                                                           |                   | 2. Kubernetes can start rkt and with                                                                |
  24   |                                                           |                   |    `rkt it is possible to start VM-s <https://coreos.com/rkt/docs/latest/running-kvm-stage1.html>`_ |
  25   |                                                           |                   | 3. `Virtlet <https://github.com/Mirantis/virtlet>`_                                                 |
  26   |                                                           |                   | 4. `Hypercontainer <https://github.com/kubernetes/frakti>`_                                         |
  27   +-----------------------------------------------------------+-------------------+-----------------------------------------------------------------------------------------------------+
  28   |Kubernetes support multiple networks.                      |No                 | As VNF needs at least three interfaces. Management,control plane, data plane. `CNI                  |
  29   |                                                           |                   | <https://github.com/containernetworking/cni/blob/master/SPEC.md>`_ already supports multiple        |
  30   |                                                           |                   | interfaces in the API definition.                                                                   |
  31   |                                                           |                   |                                                                                                     |
  32   |                                                           |                   | 1. `Multus <https://github.com/Intel-Corp/multus-cni>`_                                             |
  33   |                                                           |                   | 2. `CNI-Genie <https://github.com/Huawei-PaaS/CNI-Genie>`_                                          |
  34   |                                                           |                   | 3. A `solution built into Kubernetes                                                                |
  35   |                                                           |                   |    <https://docs.google.com/document/d/1TW3P4c8auWwYy-w_5afIPDcGNLK3LZf0m14943eVfVg/>`_             |
  36   +-----------------------------------------------------------+-------------------+-----------------------------------------------------------------------------------------------------+
  37   |Kubernetes support NAT-less connections to a container     |No                 | SIP/SDP and SCTP are not working with NAT-ed networks                                               |
  38   +-----------------------------------------------------------+-------------------+-----------------------------------------------------------------------------------------------------+
  39   |Kubernetes scheduling support CPU binding，NUMA features   |No                 | The kubernetes schedular don't support these features                                               |
  40   +-----------------------------------------------------------+-------------------+-----------------------------------------------------------------------------------------------------+
  41   |DPDK need to support CNI                                   |No                 | DPDK is the technology to accelerate the data plane. Container need                                 |
  42   |                                                           |                   | support it, the same with virtual machine.                                                          |
  43   +-----------------------------------------------------------+-------------------+-----------------------------------------------------------------------------------------------------+
  44   |SR-IOV can support CNI (Optional)                          |No                 | SR-IOV could let container get high performance                                                     |
  45   +-----------------------------------------------------------+-------------------+-----------------------------------------------------------------------------------------------------+