"speed": We start most builds in under a second, but we don't currently offer an SLA. "parallelism": You can indicate any kind of concurrency topology you like

"speed": We start most builds in under a second, but we don't currently offer an SLA. "parallelism": You can indicate any kind of concurrency topology you like with the "wait_for" field on a step: see https://cloud.google.com/container-builder/docs/api/build-steps https://cloud.google.com/container-builder/docs/api/build-st... "different machines / resources": Currently it's n1-standard-1 GCE VMs. It's possible that in the future we may become more flexible.