K2HR3 OSNL Detail

Various Details

This document explains the common contents regarding the specifications of the K2HR3 system.

Yahoo Resource Names (YRN)

The data(USER, TENANT, ROLE, POLICY-RULE, RESOURCE, SERVICE etc) of the K2HR3 system must be uniquely identifiable when referring and registered.
K2HR3 defines and uses Yahoo Resource Names(YRN) to uniquely identify these data.

Format

Yahoo Resource Names(YRN) is defined in the following format like a PATH, and the user of K2HR3 system specifies and uses a part and all of this YRN path.

yrn:<provider(domain)>:<service>:<region>:<tenant>:<type>{:<paths>}

Each part of the YRN path is separated by a ”:” character as a separator.

Each part is explained below.

yrn

This is a part indicating that this is Yahoo Resource Names(YRN), and all YRN paths start from this “yrn” string.

< provider(domain) >

This part shows the provider that provides the K2HR3 system.
Currently, this part is reserved, this part is a static value “yahoo”.

< service >

This part is showing SERVICE data used by +SERVICE, and sets a SERVICE name as a value.

The user of K2HR3 system specifies this part when expressing the path indicating the SERVICE data set by OWNER.
If this part’ value is not empty, < tenant > specifies the TENANT to which the OWNER of SERVICE belongs.

< region >

This part shows the region where the K2HR3 system exists(which means its name, region, region, range, area etc).

This part is currently undefined(reserved) and the value is always empty.
It will be defined in the future.

< tenant >

This is a part for uniquely identifying TENANT, and TENANT ID is set as a value.
In collaboration with IaaS(OpenStack) of K2HR3 system, TENANT of K2HR3 system is the same as tenant(or project) of IaaS(OpenStack).
That is TENANT ID is the same as the ID of the tenant(or project) of IaaS(OpenStack).

When specifying data not related to TENANT by YRN Path, the value of this part is empty.

< type >

This is a part indicating the type of data(USER, ROLE, POLICY-RULE, RESOURCE, SERVICE etc) of the K2HR3 system.
The value of this part is one of the following.
Values other than bold are used only inside the K2HR3 system. USER will not use it directly.

< paths >

This last part shows data registered in the type indicated by < type >, and it is a path uniquely indicating data under the types.
And the value of this part is called the YRN partial path.
YRN full path means all string from “yrn” to end.
The value of this part can represent a hierarchical path like a PATH.
In that case, separate each hierarchy with ”/” characters, and explicitly state parent/child relationships.

Usage

The K2HR3 system uniquely identifies data using Yahoo Resource Names(YRN) when setting/referring data.
Mainly, USER uses YRN Path to specify ROLE, POLICY, RESOURCE, SERVICE.
USER can use K2HR3 Web Application to check YRN full path.
The K2HR3 Web Application displays the YRN full path in the dialog that displays the attribute information of the data.

Auxiliary Information(AUX)

The Auxiliary Information(AUX) used by the K2HR3 system is the information attached to the ROLE member HOST.
The K2HR3 system uniquely distinguishes ROLE members using HOST name(or IP address) and this AUX.

Uniqueness

In the K2HR3 system, the HOST of the ROLE member must be uniquely identified.
However, the K2HR3 system registers HOST with FQDN or IP address, but there are cases where it is not unique with these.
In that case, the K2HR3 system can add Auxiliary Information(AUX) to HOST.
Currently, the Auxiliary Information(AUX) that USER can specify is only the PORT element.

Collaboration with IaaS(OpenStack)

The K2HR3 system can register and delete the ROLE member’s HOST with IaaS(OpenStack).
When using this collaboration function, the elements CUK, EXTRA are added to the Auxiliary Information(AUX) of the registered HOST.
Please do not use these element directly.

Elements of AUX

As mentioned above, several elements are defined for the Auxiliary Information(AUX).
This section explains these elements of AUX.

K2HR3 OSNL Detail