# NodePool 流程图

## Mutating

start
:"收到mutating webhook";
:"检查Kind";
if ("Kind是否等于 Pod") then (true)
    :"反序列化Pod";
    if ("NodePool 存在") then (true)
        if ("NodeName 为空 且 NodeSelectot 为空 且 NodeAffinity 为空") then (true)
           :"根据NodePool添加默认NodeAffinity";
        else (false)

        endif
        if ("边缘节点Tolerations是否存在") then (true)
            :"添加边缘节点Tolerations";
        endif
        :"修改POD，返回 Allowed";

    else (false)
        :"跳过修改，返回 Allowed";
    endif


else (false)
    :"跳过修改，返回 Allowed";
endif
stop

@enduml

## Validating

start
:"收到 validating webhook";
:"检查Kind";
if ("Kind是否等于 Pod") then (true)
    :"反序列化Pod";
    if ("NodePool 存在") then (true)
        :"获取当前NodePool节点列表";  
        if ("存在边缘节点Tolerations") then  (false)
            :"返回 Denied";
        else (true)
            fork
                if ("NodeName 为空") then (true)       
                    :"返回nil";
                else (false)
                    :"返回对应的节点列表";
                endif
            fork again
                if ("NodeSelector 为空") then (true)
                    :"返回nil";
                else (false)
                    :"返回对应的节点列表";
                endif
            fork again
                if ("NodeAffinity 为空") then (true)
                    :"返回nil";
                else (false)
                    :"返回对应的节点列表";
                endif
            end merge

            if ("NodeName NodeSelector NodeAffinity 是否存在交集") then (false)
                :"返回 Denied";
            else (true)
             if ("交集节点是否全部存在于NodePool中") then (false)
                    :"返回 Denied";
                else (true)
                    :"返回 Allowed";
                endif
            endif
        endif


    else (false)
        :"返回 Allowed";
    endif
else
    :"返回 Allowed";
endif
stop
@enduml

# 时序图

kubernetes --> mutating: webhook request

mutating --> mutating: 检查Kind

mutating --> mutating: 反序列化Pod

mutating --> mutating: 检查Pod是否配置节点选择器

mutating <--> kubernetes: 查询NodePool和ConfigMap是否存在

mutating --> mutating: 转换NodePool为节点亲和性

mutating --> mutating: 更新Pod的节点亲和性

mutating --> mutating: 更新Pod的污点容忍度

mutating --> kubernetes: webhook response

kubernetes --> validating: webhook request

validating --> validating: 检查Kind

validating --> validating: 反序列化Pod

validating <--> kubernetes: 查询NodePool和ConfigMap是否存在

validating <--> kubernetes: 查询NodePool的节点列表

validating --> validating: 查询Pod的选择的节点

validating --> validating: 检查Pod选择的节点是否在NodePool中

validating --> kubernetes: webhook response