#ChromeOS Skylab Admin

Overview

Chrome OS Skylab Admin is a Google App Engine app (in Go) that supports the following:

Manage Lab Device Inventory

Lab device inventory is broadly composed of the following:

• Device hardware attributes - Static (immutable) hardware characteristics of lab devices
  • E.g. device model, SoC architecture, graphics chip family, bluetooth, etc...
• Lab device configuration - Lab deployment details needed to communicate with, manage, and run tests on a specific device
  • E.g. hostname, servo port, servo host, etc...
• Lab device state - Current status information about a given device
  • E.g. Scheduling availability, servo health, etc...

This service is responsible for managing and providing access to this config.

Currently, the config is backed by the Skylab inventory repo and cached/served from Datastore.

Updates to this config come from the following sources:

• skylab command-line tool
  • Supports adding new lab devices and setting lab-specific details
  • Supports administrative updates/operations to lab devices
• Lab device bots
  • Device bots dynamically detect hardware attributes and report them to this service
  • Device bots also report lab device status information

This config is then sourced/read by device bots to support the following:

• Reported to swarming as schedulable attributes that will match test requests
• Lab setup is used to communicate with the device and device peripherals

Keep Devices Healthy

This service is trying to keep devices in a healthy, schedulable state at all times. Device health can degrade for many reasons (bad test, provisioning failure, etc...) and this service supports recovering those devices with the following:

• API to manually schedule device repair jobs (invoked via skylab tool)
• Scheduling automated repair jobs for any devices it detects as unhealthy

Other Admin Functions

This service is a bit of a catch-all and performs various other functions required to keep the system healthy.

For example, here are some of the additional functions (not comprehensive):

• Triggers balancing across critical device pools
• Reports time-series metrics used for monitoring/analysis
• Reports inventory to Drone Queen for drone/bot management

Code/Development Setup

For initial setup, follow the Chrome Infra Go procedures

For environment setup, follow the Bootstrap procedures

Application Environments

• Production - cloud project
• Staging - cloud project
• Local - ‘cd go/src/infra/appengine/crosskylabadmin && make dev’

Test

• Unit testing - ‘cd go/src/infra/appengine/crosskylabadmin && make test’
• Functional/integration testing - No automated testing

Release Procedures

• cd go/src/infra/appengine/crosskylabadmin
• make up-staging && switch-staging (Staging)
• make up-prod && switch-prod (Production)