Hello Young, Yes adding different roles to the tool would be definitely helpful. As a starting point, I am going to code it with one role and incorporate multiple roles later.
regards, Karuna On Fri, May 25, 2012 at 11:58 AM, Young h Oh <o...@us.ibm.com> wrote: > Hi Karuna > > Do you consider different user roles? For example, admin users and regular > users? I think adding user roles to VCL cloud broker tool might be good if > an admin user can set security policy for specific images and VCL can set > it when instance creates, for instance. > > I agree that the current VCL data base does not have much detail > information about images and consistency might be an issue. I think Image > inventory management is necessary for VCL to store detailed image > information as metadata and other project can use them like VCL cloud > broker tool. > > Regards, > -------------------------------------------------------------------- > Young Hyun Oh > > [image: Inactive hide details for Karuna P Joshi ---05/24/2012 09:38:25 > PM---Hello Aaron, Thanks for your suggestions. I agree that t]Karuna P > Joshi ---05/24/2012 09:38:25 PM---Hello Aaron, Thanks for your > suggestions. I agree that there should be a mechanism for > > From: Karuna P Joshi <kjos...@umbc.edu> > To: firstname.lastname@example.org, > Date: 05/24/2012 09:38 PM > Subject: Re: VCL cloud broker tool - first look > ------------------------------ > > > > Hello Aaron, > > Thanks for your suggestions. I agree that there should be a mechanism for > users to be able to search on the software components that they are looking > for. Unfortunately, the current VCL database doesn't associate any such > information with the images. At best we find some information in the > description or name of the image, but that is also not consistent. > In our previous correspondence, Andy Kurth had mentioned that there is a > need for maintaining an "image inventory" . (I believe a JIRA issue has > been created about this https://issues.apache.org/jira/browse/VCL-561 ). > This inventory project will complement the broker that I plan to design > since it will enable more complex querying capability. > > I have incorporated the additional data and security constraints to make > the VCL broker compliant with NIST's cloud computing standards. The fields > were taken from the NIST use case 3.9 Query Cloud-Provider Capabilities > and Capacities, http://www.nist.gov/itl/cloud/3_9.cfm . One of the > research > areas that my mentor at IBM is very interested in is how to make VCL > compliant with US federal agencies' cloud computing policies. > > As for the buttons - my aim is to code to 3 functions - discovery, > negotiation (or constraint relaxation) and reserve images. > Discovery will try to search all available images for the attributes > specified. Failing this, the broker will begin relaxing the constraints and > refresh the list. For instance, if a user specifies - "I want MatLab, R > and at least version 1.6 of JAVA's runtime environment" and no image is > discovered, > the tool will attempt to find images by relaxing the constraint of JAVA > version . I will most likely reduce the number of buttons depending on how > easily I am able to do this with SPARQL. I feel that I might need 3 buttons > to ensure the functionality since SPARQL returns results in a XML/RDF > format which I will have to process to allow reservation. > > Yes, I plan to run this user interface as an external service . However, I > will have to design a server component of this which will interface > directly with the VCL APIs or database. If time permits, I can extend this > broker tool to query multiple VCL installations at the same time - allowing > users to reserve the most suitable image across various VCL systems. > > regards, > Karuna > > On Thu, May 24, 2012 at 12:54 PM, Aaron Coburn <acob...@amherst.edu> > wrote: > > > Karuna, > > > > I looked at what you are proposing here, and it is quite exciting. I have > > recently been working a fair amount with RDF and SPARQL, and it can be > very > > powerful. > > > > You asked for some feedback on the interface. I think this is a good > > start. Given the number of possible permutations of thirteen (mostly) > > categorical attributes, the interface you designed would be great for > > navigating through reasonably large image collections. For smaller > > collections of images, I think the number of attributes would be a bit > > cumbersome for the average user. > > > > The one attribute that users would most certainly want to be able to > > specify is one related to the software available on the image. And this > > would need to be a multi-valued field. (i.e. "I want MatLab, R and at > least > > version 1.6 of JAVA's runtime environment") > > > > The way I would go about this (borrowing from the language of search > > engines) is to see these attributes as "facets" that help narrow a > search. > > The value of each facet would be a constraint in the logic of your query, > > and these constraints could be turned on or off, affecting the result > list. > > > > It should be possible to design the interface so that you could > > effectively eliminate all four of the blue rectangular buttons. "List all > > images" would be achieved by removing all selected constraints; it would > > also be the initial state of the interface. "Discover images that match" > > would not be necessary if the result list is auto-updated when any > > constraint is added or removed. From a user's perspective I'm not sure > how > > "Negotiate and Finalize Image" differs from "Reserve Image". Either of > them > > could be achieved by clicking on the name of the relevant SPARQL result. > > > > From a systems architecture perspective, it seems that you anticipate > > having this tool running in an external (e.g. Joseki) service. I assume > > that the service would query the VCL API (on behalf of a given user) to > > identify the list of all accessible images along with the relevant > > attributes for each image. By extending the API slightly, I can see how > > this could work very well. Using the VCL's API, reservations could also > be > > made and managed directly through this brokering tool. > > > > Thanks for preparing this information. I look forward to seeing more! > > > > Aaron > > > > > > -- > > Aaron Coburn > > Systems Administrator and Programmer > > Academic Technology Services, Amherst College > > acob...@amherst.edu<mailto:acob...@amherst.edu <acob...@amherst.edu>> > > > > > > > > On May 23, 2012, at 5:56 PM, Karuna P Joshi wrote: > > > > Hello, > > > > I have designed the User interface for the VCL cloud broker tool and have > > uploaded the screenshot of this interface into the JIRA issues wiki. > > I look forward to feedback on the interface from VCL developers. > > > > On a related note, how does one assign the JIRA issue ? I want to assign > > this issue (VCL-577) to myself, but the field appears un-editable. > > > > regards, > > Karuna > > ____________________ > > Karuna Pande Joshi > > PhD Candidate, > > CSEE Dept, UMBC > > kjos...@umbc.edu<mailto:kjos...@umbc.edu <kjos...@umbc.edu>>, > karuna.jo...@umbc.edu<mailto: > > karuna.jo...@umbc.edu> > > > > > > > -- > regards, > Karuna > ____________________ > Karuna Pande Joshi > PhD Candidate, > CSEE Dept, UMBC > kjos...@umbc.edu, karuna.jo...@umbc.edu > > -- regards, Karuna ____________________ Karuna Pande Joshi PhD Candidate, CSEE Dept, UMBC kjos...@umbc.edu, karuna.jo...@umbc.edu