Determinism over magic: the engineering design behind Azure Container Registry Regional Endpoints (opens in new tab)

By Zoey Li, Huangli Wu, Johnson Shi, Wei Meng Introduction Azure Container Registry (ACR) supports geo-replication: one registry resource with active-active replicas across multiple Azure regions. You push or pull through any replica, and ACR asynchronously replicates content to all others. For geo-replicated registries, ACR exposes a global endpoint — myregistry.azurecr.io — backed by Azure Traffic Manager (TM), which routes requests based on network performance. This works well for most wor...