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Table of Contents

Meeting Time and Conference information

Meeting Time:  3rd Monday of each month at 1pm EST as needed (if Wednesday at 8am PT on a bi-weekly basis, i.e. alternating with the TSC Meeting. If there are no agenda items, the meeting is will be cancelled)

EdgeX Working Group 2 is inviting you to a scheduled Zoom meeting.

Topic: EdgeX - Monthly Architects Meeting
Time: Nov 30 2020 10Time: Jan 18, 2023 08:00 AM Pacific Time (US and Canada)
Every month on the Third Mon, until Nov 18        Every 2 weeks on Wed, until Dec 4, 2024, 50 occurrence(s)

Please download and import the following iCalendar (.ics) files to your calendar system.
Monthly: https://zoom.us/meeting/vpEufuytpzstxwJXp3nHvYoHt7mRqmscaw/ics?icsToken=98tyKuqtrTIvH92Vt1_Hd7MvA5X5buHylmlZgJtNzxHNFRlcShehO9BTP6F8Ec-B

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Meeting ID: 353 955 907
Passcode: 150365

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Meeting ID: 353 955 907

Find your local number: https://zoom.us/u/ajhw77vTU

Meeting Agenda/Minutes/Recordings

Currently running bi-weekly:

Previously run monthly:

Open Topics

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  • Jim to get with Bryon and have him cover his ADR (https://github.com/edgexfoundry/edgex-docs/pull/389) in the next Security WG as this may make this ADR moot
  • All EdgeX architects are asked to review the following in advance of the next Monthly Architects meeting so this ADR can be dispositioned:
    • Service List ADR
    • Registry ADR (already approved)
    • The getAllServiceEndpoints query on the registry API to be able to query for all services
  • Architects are requested to put comments in the service list ADR after review of above
  • At the next Monthly Architect’s meeting (Oct 18), we’ll make a decision as to whether the ADR is still needed, what to update, and create a more detailed design (including secure and non-secure) if it is still needed.
  • Rejected per 10/18/21 meeting

...

  • Review hybrid app-device service UCR (and any subsequent ADR) with the community
  • What to do about the future of system management

On Hold Topics or Pending Research

  • None at this time

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  • Standardizing units of measure
  • Per meeting of 3/15, Jim to research more like the ANSI X-12 standard and see what other IoT/edge projects are using.

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  • allow for dynamic updates to device profiles (device services)
  • validation of device protocol properties (device services)
  • micro service authentication (security)

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  • Drop in replacement?  Impact?  Does it help significantly with size?
  • Allowing us to drop Progress DB
  • But can you configure groups/users ACL
  • Only supports JWT users

...

...

  • Relook policies for 3rd party libs and how to evaluate, especially for device services. Also, should we start to fork these “immature” libraries

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  • There is a concern about putting to much information in from those familiar with commercial products
  • Temporary decision was to provide enough so that someone could debug the problem with the information provided and not to be concerned with exposing intellectual property since everything is open source.
  • Per planning meeting:  need a survey to address but don't believe we have an issue
  • Potentially is an issue in defining what is Error/Info/Warning

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  • Release would be easier but image would be bigger with more complex compose files
  • Per Core WG of 2/18/21 - is it at least worth exploring the combination of Core Metadata and Core Command since the two have to share so much data?
  • Core command is just a proxy service today, but reasons for having a separate service include: additional security to protect actuation; issue multiple device commands with one request (make one request and fire it to all Modbus devices or all devices under the control of one service); provide the means to limit requests down to a device so as not to overwhelm it or wake it up).  These needs could also be incorporated into a combined metadata service but there are advantages to separation of concerns.

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  • Ian Johnson has an example of app service to InfuxDB export (snap in the store)

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  • After the architect's meeting of Jan 26, 2021, it was decided that "templates" should be created in all SDKs to allow for the easy creation of new services (removing the old samples in the SDKs).  The templates will be a means for users to copy and create a new service with some instruction on how to rename and replace TODOs with necessary code.
  • After the templates are in place, there is a decision to be made about where automation can be placed to use the templates to create new services (versus a manual copy).  In the CLI, in a new tool, in a set of simple scripts?

On Hold Topics or Pending Research

  • High - V2 API - should we add security foundation added to that (per some of earlier V2 API designs via Dell and Bryon N)?
    • Adding token to authenticate a micro service call (is this in scope for Ireland)
    • May not be needed unless all services are distributed
    • We need to explore alternatives to provide secure / locked out service to service communications
    • ADR being created and to be reviewed in the Security WG.
  • Low - Digital twin (and LWM2M) applicability - being worked via liaison with DTC