学习FaaS的步骤，你需要先了解docker的虚拟化技术和Kubernetes (k8s) 的docker容器管理技术，当这两方面的知识储备完后，你就可以学习fission的框架和设计理念了。FaaS是一种云计算的概念，将函数作为一种服务，而这种概念的代码实现框架有OpenFaaS、fission等，咱们这里介绍fission。

docker的总结教程：https://blog.csdn.net/qccz123456/article/details/83342253 , 介绍了如何使用docker进行各种操作容器；
k8s官方翻译的学习教程：https://blog.csdn.net/kikajack/article/details/80208340 , 介绍了k8s中的各种概念和如何管理docker的。
最后学习fission的教程如下：
（1）了解Faas的大致介绍：https://yq.aliyun.com/articles/175225
（2）了解fission的使用方法：https://www.kubernetes.org.cn/2523.html
（3）掌握fission的具体操作和细节：https://docs.fission.io/0.12.0/
（4）补充学习一些fission的知识：https://lingxiankong.github.io/2017-03-05-faas-fission.html

kubelet:运行在cluster所有节点上,负责启动POD和容器
kubeadm:用于初始化cluster
kubectl:kubectl是kubenetes命令行工具，通过kubectl可以部署和管理应用，查看各种资源，创建，删除和更新组件

kubectl usage

 # kubectl version
Client Version: version.Info{Major:"1", Minor:"12", GitVersion:"v1.12.2", GitCommit:"17c77c7898218073f14c8d573582e8d2313dc740", GitTreeState:"clean", BuildDate:"2018-10-24T06:54:59Z", GoVersion:"go1.10.4", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"12", GitVersion:"v1.12.2", GitCommit:"17c77c7898218073f14c8d573582e8d2313dc740", GitTreeState:"clean", BuildDate:"2018-10-24T06:43:59Z", GoVersion:"go1.10.4", Compiler:"gc", Platform:"linux/amd64"}

 # kubectl -h
kubectl controls the Kubernetes cluster manager.
Find more information at: https://kubernetes.io/docs/reference/kubectl/overview/
Basic Commands (Beginner):
  create         Create a resource from a file or from stdin.
  expose         Take a replication controller, service, deployment or pod and expose it as a new Kubernetes Service
  run            Run a particular image on the cluster
  set            Set specific features on objects

Basic Commands (Intermediate):
  explain        Documentation of resources
  get            Display one or many resources
  edit           Edit a resource on the server
  delete         Delete resources by filenames, stdin, resources and names, or by resources and label selector

Deploy Commands:
  rollout        Manage the rollout of a resource
  scale          Set a new size for a Deployment, ReplicaSet, Replication Controller, or Job
  autoscale      Auto-scale a Deployment, ReplicaSet, or ReplicationController

Cluster Management Commands:
  certificate    Modify certificate resources.
  cluster-info   Display cluster info
  top            Display Resource (CPU/Memory/Storage) usage.
  cordon         Mark node as unschedulable
  uncordon       Mark node as schedulable
  drain          Drain node in preparation for maintenance
  taint          Update the taints on one or more nodes

Troubleshooting and Debugging Commands:
  describe       Show details of a specific resource or group of resources
  logs           Print the logs for a container in a pod
  attach         Attach to a running container
  exec           Execute a command in a container
  port-forward   Forward one or more local ports to a pod
  proxy          Run a proxy to the Kubernetes API server
  cp             Copy files and directories to and from containers.
  auth           Inspect authorization

Advanced Commands:
  apply          Apply a configuration to a resource by filename or stdin
  patch          Update field(s) of a resource using strategic merge patch
  replace        Replace a resource by filename or stdin
  wait           Experimental: Wait for a specific condition on one or many resources.
  convert        Convert config files between different API versions

Settings Commands:
  label          Update the labels on a resource
  annotate       Update the annotations on a resource
  completion     Output shell completion code for the specified shell (bash or zsh)

Other Commands:
  alpha          Commands for features in alpha
  api-resources  Print the supported API resources on the server
  api-versions   Print the supported API versions on the server, in the form of "group/version"
  config         Modify kubeconfig files
  plugin         Provides utilities for interacting with plugins.
  version        Print the client and server version information

Usage:
  kubectl [flags] [options]

 # kubectl  -n fission get pods
NAME                                                    READY   STATUS    RESTARTS   AGE
controller-85684bd4bb-tjdpx                             1/1     Running   3          6d18h
redis-0                                                 1/1     Running   2          6d18h
router-59db57d6f7-267pd                                 1/1     Running   4          6d18h
...

 # kubectl --namespace fission get svc
NAME                                    TYPE           CLUSTER-IP       EXTERNAL-IP   PORT(S)          AGE
controller                              NodePort       10.102.31.183            80:31313/TCP     6d19h
redis                                   ClusterIP      10.109.250.78            6379/TCP         6d19h
router                                  LoadBalancer   10.101.120.94         80:32164/TCP     6d19h

 # kubectl --namespace fission get svc router
NAME     TYPE           CLUSTER-IP      EXTERNAL-IP   PORT(S)        AGE
router   LoadBalancer   10.101.120.94        80:32164/TCP   6d19h

 # export FISSION_URL=10.239.85.153:31313
 # export FISSION_ROUTER=10.239.85.153:32164

 # kubectl -n fission logs redis-0 
...
1:M 21 Nov 07:02:14.719 * The server is now ready to accept connections on port 6379

 # kubectl get nodes -o=wide
 # kubectl get pods --all-namespaces -o=wide
 # kubectl get services --all-namespaces -o=wide
 # kubectl get pods,services --all-namespaces -o=wide
 # kubectl get deployments --all-namespaces -o=wide

 # kubectl get all --all-namespaces
 # kubectl get pods --all-namespaces
 # kubectl describe pod -n fission-function
 # kubectl -n fission-function

fussion usage

 # fission env -h
NAME:  fission environment - Manage environments
USAGE:  fission environment command [command options] [arguments...]
COMMANDS:
     create, add  Add an environment
     get          Get environment details
     update       Update environment
     delete       Delete environment
     list         List all environments

 # fission fn -h
NAME:  fission function - Create, update and manage functions
USAGE:  fission function command [command options] [arguments...]
COMMANDS:
     create   Create new function (and optionally, an HTTP route to it)
     get      Get function source code
     getmeta  Get function metadata
     update   Update function source code
     delete   Delete function
     list     List all functions in a namespace if specified, else, list functions across all namespaces
     logs     Display function logs
     test     Test a function

 # fission route -h
NAME:  fission httptrigger - Manage HTTP triggers (routes) for functions
USAGE:  fission httptrigger command [command options] [arguments...]
COMMANDS:
     create, add  Create HTTP trigger
     get          Get HTTP trigger
     update       Update HTTP trigger
     delete       Delete HTTP trigger
     list         List HTTP triggers

 # fission env list
 # fission fn list
 # fission route list 
 # fission env create --name nodejs --image fission/node-env (If environment doesn’t exist)
 # curl -LO https://raw.githubusercontent.com/fission/fission/master/examples/nodejs/hello.js
 # fission fn create --name hello --env nodejs --code hello.js
 # fission fn test --name hello
 # fission route create --function hello --url /hello
 # curl http://$FISSION_ROUTER/hello
 # fission env get --name nodejs
 # fission route delete -name hello
 # fission fn delete -name hello
 # fission env delete -name hello
   
 # fission env create --name python --image fission/python-env (If environment doesn’t exist)
 # fission fn create --name hello --env python --code hello.py –-url /hello --method GET
 # fission fn test --name hello
 # fission route create --function hello --url /hello
 # curl http://$FISSION_ROUTER/hello

fission route delete -name f9513731-0757-4912-b29b-56111cf9ed6e
fission fn delete -name xnmt
fission env delete -name enmt

cd /root/ellisrm/nmt/
/root/ellisrm/get_logs.sh > /dev/null
/root/ellisrm/get_logs.sh > log__nmt_env-no_fn-no_route-no_curl-no
fission env create --name enmt --image 10.105.159.217:2501/rob-nmt:latest --poolsize 1 --version 3
/root/ellisrm/get_logs.sh > log__nmt_env-enmt_fn-no_route-no_curl-no
fission fn create --code requestdata.py --name xnmt --entrypoint requestdata.main --env enmt --executortype newdeploy --minscale 1 --maxscale 1 --targetcpu 50
/root/ellisrm/get_logs.sh > /home/faas-master/fission_log/log__nmt_env-enmt_fn-xnmt_route-no_curl-no
fission route create --function xnmt --url /nmt
/root/ellisrm/get_logs.sh > /home/faas-master/fission_log/log__nmt_env-enmt_fn-xnmt_route-xnmt_curl-no
curl "http://$FISSION_ROUTER/nmt?key=hello+world"
/root/ellisrm/get_logs.sh > /home/faas-master/fission_log/log__nmt_env-enmt_fn-xnmt_route-xnmt_curl-nmt
curl "http://$FISSION_ROUTER/nmt?key=hello+world"
/root/ellisrm/get_logs.sh > /home/faas-master/fission_log/log__nmt_env-enmt_fn-xnmt_route-xnmt_curl-nmt2
curl "http://$FISSION_ROUTER/nmt?key=hello+world"
/root/ellisrm/get_logs.sh > /home/faas-master/fission_log/log__nmt_env-enmt_fn-xnmt_route-xnmt_curl-nmt3

集群需要其他的一些设置，设置ip，对齐集群时间等：
配置网卡ip
清除原先设置的ip：ip addr flush dev eth0
设置ip：
Ubuntu: ifconfig eth0 192.168.0.1/24
ifconfig
CentOS: ip addr add 192.168.0.1/24 dev eth0
ip addr show

master eno2 <—> extern 10.239.85.153
node1 eno2 <—> extern 10.239.85.167
node2 eno2 <—> extern 10.239.85.168
192.168.0.1 master enp175s0f0 <—> node1 eno1 192.168.0.2
192.168.10.1 master enp175s0f1 <—> node2 eno1 192.168.10.2

配置NTP服务器：
（1）先关闭防火墙：
https://www.jianshu.com/p/d6414b5295b8
（2）配置NTP服务器和客户端并启动服务器
http://www.cnblogs.com/ivictor/p/3622081.html
https://blog.csdn.net/gycool21/article/details/51746174
（3）设置/etc/crontab，每多少时间重新校准一次时间
sudo service cron reload