worker-image-build

Build Firefox CI worker images by triggering GitHub Actions workflows in mozilla-platform-ops/worker-images. Supports FXCI Azure workflows for Windows image builds (trusted and untrusted). Use when: - User wants to build a worker image - User mentions "FXCI Azure", "worker image build", or specific pool names like "win11-64-24h2-alpha" - User wants to trigger image builds for Windows 10, Windows 11, or Windows Server 2022 - User asks to check status of a worker image build Triggers: "build image", "worker image", "FXCI Azure", "trigger build", "image build status"

Worker Image Build

Trigger a configured build in mozilla-platform-ops/worker-images with the authenticated gh CLI.

Prerequisites

Install gh, authenticate it, and confirm that your account is allowed by .github/relsre.json in the worker-images repository.

Usage

REPO=mozilla-platform-ops/worker-images

# Read the dispatchable configuration names from the workflow input.
gh workflow view "FXCI - Azure" --repo "$REPO" --yaml
gh workflow view "FXCI - Azure - Trusted" --repo "$REPO" --yaml

# Start one untrusted build.
gh workflow run "FXCI - Azure" --repo "$REPO" -f config=<CONFIG_NAME>

# Find and watch the new run.
gh run list --repo "$REPO" --workflow "FXCI - Azure" --limit 1 \
  --json databaseId,url,status,createdAt
gh run watch <RUN_ID> --repo "$REPO"

Use FXCI - Azure - Trusted for a trusted configuration. Read examples.md for complete commands.

Gotchas

Workflow input options are authoritative. A YAML file can exist without a dispatch option.
A trusted configuration must use the trusted workflow.
Build an -alpha image before production. A build usually takes 30 to 60 minutes and opens a release-notes pull request.
Do not merge release notes or recommend production deployment until os-integrations shows that all Tier 1 tasks pass against the latest autoland decision baseline.

Related Skills

Use worker-image-investigation for failures in an existing image.
Use production-image-deploy for a complete production rollout.