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   |                                                           |                   | 1) Kubevirt [1]                                                    |
  22   |                                                           |                   | 2) Kubernetes can start rkt and with rkt it is possible to start   |
  23   |                                                           |                   |    VM-s [2]                                                        |
  24   |                                                           |                   | 3) Virtlet [3]                                                     |
  25   |                                                           |                   | 4) Hypercontainer [4]                                              |
  26   |                                                           |                   |  [1] https://github.com/kubevirt/kubevirt                          |
  27   |                                                           |                   |  [2] https://coreos.com/rkt/docs/latest/running-kvm-stage1.html    |
  28   |                                                           |                   |  [3] https://github.com/Mirantis/virtlet                           |
  29   |                                                           |                   |  [4] https://github.com/kubernetes/frakti                          |
  30   +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
  31   |Kubernetes support multiple networks.                      |No                 | As VNF needs at least three interfaces. Management,control plane,  |
  32   |                                                           |                   |data plane.                                                         |
  33   |                                                           |                   | (1) Multus https://github.com/Intel-Corp/multus-cni                |
  34   |                                                           |                   | (2) CNI-Genie https://github.com/Huawei-PaaS/CNI-Genie             |
  35   |                                                           |                   | (3) A solution built into Kubernetes                               |
  36   |                                                           |                   | https://docs.google.com/document/d/1TW3P4c8auWwYy-w_5afIPDcGNLK3LZf0m14943eVfVg/ |
  37   |                                                           |                   | (4) CNI                                                            |
  38   |                                                           |                   | https://github.com/containernetworking/cni/blob/master/SPEC.md     |
  39   +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
  40   |Kubernetes support NAT-less connections to a container     |No                 | SIP/SDP and SCTP are not working with NAT-ed networks              |
  41   +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
  42   |Kubernetes scheduling support CPU binding，NUMA features   |No                 |The kubernetes schedular don't support these features               |
  43   +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
  44   |DPDK need to support CNI                                   |No                 |DPDK is the technology to accelerate the data plane. Container need |
  45   |                                                           |                   |support it, the same with virtual machine.                          |
  46   +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+
  47   |SR-IOV can support CNI (Optional)                          |No                 |SR-IOV could let container get high performance                     |
  48   +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+