feat(orchestrator): automatic provider fallback with runner availability check

Adds built-in load balancing: check GitHub runner availability before
builds start, auto-route to a fallback provider when runners are busy
or offline. Eliminates the need for a separate check-runner job.

New inputs: fallbackProviderStrategy, runnerCheckEnabled,
runnerCheckLabels, runnerCheckMinAvailable.

Outputs providerFallbackUsed and providerFallbackReason for workflow
visibility.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
frostebite
2026-03-05 07:39:23 +00:00
parent 9d475434d3
commit 786ee3799c
7 changed files with 386 additions and 1 deletions
@@ -138,6 +138,24 @@ class OrchestratorOptions {
return provider || 'local';
}
static get fallbackProviderStrategy(): string {
return OrchestratorOptions.getInput('fallbackProviderStrategy') || '';
}
static get runnerCheckEnabled(): boolean {
return OrchestratorOptions.getInput('runnerCheckEnabled') === 'true';
}
static get runnerCheckLabels(): string[] {
const labels = OrchestratorOptions.getInput('runnerCheckLabels');
return labels ? labels.split(',').map((l) => l.trim()) : [];
}
static get runnerCheckMinAvailable(): number {
return Number(OrchestratorOptions.getInput('runnerCheckMinAvailable')) || 1;
}
static get containerCpu(): string {
return OrchestratorOptions.getInput('containerCpu') || `1024`;
}