Orchestration at the Edge with Nomad

In this demo, I showcase a hardware concept for "Badge Computing" and how HashiCorp Nomad can be used to make a "smart" conference badge.

This version of the demo was given at Seeed Studio's Pi Day stream in March 2024.

Transcript

1. Badge Computing Orchestration at the Edge with Nomad
2. Sr. Developer Advocate at HashiCorp for Infrastructure and Orchestration @ksatirli Kerim Satirli
3. computing that takes place at or near the physical location of the producer or consumer of data. point of presence mobile datacenter Similar: edge com·put·ing noun
4. computing that takes place on your conference or event badge, using a SBC and e-paper screen. noun badge com·put·ing
5. 01 Inspiration to Design
6. Pi Day Conf !
7. PiDayConf Speaker Kerim Satirli
8. PiDayConf Speaker Kerim Satirli conference branding plastic frame low-powered screen
9. Nomad for job orchestration Raspberry Pi Zero 2 W ESP32 battery shield
10. PiDayConf Speaker Kerim Satirli back front
11. "Wearer" screen PiDayConf Speaker Kerim Satirli
12. PiDayConf "Nomad" screen "Baedge" screen Allocation: 1a2b3c4d Address: 192.168.0.246 Version: 1.7.5 Nomad Runtime PiDayConf Kerim Satirli Model: 2in7b Revision: v2 BAEDGE
13. 02 Design to Prototype
15. :(
16. """ application """ import importlib import logging import os import platform import qrcode from PIL import Image, ImageDraw, ImageFont import helpers as hlp import config as cfg def write_screen(epd, screen_name, sleep_screen=False): """ Write contents to screen baedge.py
17. # iterate over shape items for screen if "shapes" in screen: for item in screen["shapes"]: hlp.log_debug('write_screen:shape', item) if item["coordinates"] and item["fill"] and item["type"]: coordinates = item["coordinates"] fill = item["fill"] # don't use `type` as it overrides a builtin shape_type = item["type"] hlp.log_debug('write_screen:shape', 'write shape') hlp.log_debug('write_screen:shape', 'shape_type is: ' + shape_type) else: hlp.log_debug('write_screen:shape', 'incomplete data, skip write shape') # iterate over text items for screen if "texts" in screen: for item in screen["texts"]: hlp.log_debug('write_screen:text', item) baedge.py
18. Model: 2in7b Revision: v2 {Ba,E}dge Hardware
19. HashiCorp Nomad https:!"nomadproject.io/ Container Orchestration Deploy, manage, and scale containers in production with ease. Application Orchestration Deploy and manage legacy applications without the need to refactor or rewrite. Alternative to Kubernetes Deploy and scale containers without complexity. Multi-Orchestrator Pattern Deploy and scale containers with multiple orchestrators. Multi-OS Support Deploy to Linux, macOS, or Microsoft Windows. Edge Workload Management Globally scale edge deployments with a simple single-cluster topology.
20. job "baedge" { region = "baedges" datacenters = ["edge"] type = "system" namespace = "default" priority = 10 node_pool = "baedges" group "baedge" { network { mode = "host" port "main" { static = 2343 to = 2343 } } baedge.nomad.hcl
21. # general configuration LOG_LEVEL="!# .log_level !$" # Baedge-specific configuration BAEDGE_FONTS_PATH="!# .baedge_fonts_path !$" BAEDGE_HARDWARE_MODEL="!# .baedge_hardware_model !$" BAEDGE_HARDWARE_REVISION="!# .baedge_hardware_revision !$" BAEDGE_MEDIA_PATH="!# .baedge_media_path !$" BAEDGE_SERVER_DEBUG="!# .baedge_server_debug !$" BAEDGE_SERVER_PORT = "2343" # (human) wearer-specific configuration BAEDGE_WEARER_NAME="!# .baedge_wearer_name !$" BAEDGE_WEARER_TITLE="!# .baedge_wearer_title !$" BAEDGE_WEARER_SOCIAL="!# .baedge_wearer_social !$" BAEDGE_WEARER_LINK="!# .baedge_wearer_link !$" !# end !$ # Nomad-specific configuration NOMAD_VERSION = "!# env "attr.nomad.version" !$" DATA destination = "${NOMAD_ALLOC_DIR}/.env" env = true error_on_missing_key = true baedge.nomad.hcl
22. Nomad UI on reTerminal
23. Baedge UI on reTerminal
24. 03 Prototype to Next Steps
25. "Wearer" screen
26. "Nomad" screen "Baedge" screen Allocation: 1a2b3c4d Address: 192.168.0.246 Version: 1.7.5 Nomad Runtime
27. Camera
28. Demo Code
29. Thank you speakerdeck.com/ksatirli