This post shows practical outcomes of transforming single-instance headscale into a multi-tenant model with isolation across tailnet, ACL, routes, DNS, CLI operations, and relay strategy.
Original post: headscale多租户改造，ACL、路由、DNS等全隔离
When scaling or rebalancing a Headscale SaaS deployment, the key challenge is how to migrate users with minimal disruption. This post presents a practical pattern: dynamic routing + system-level targeted disconnect + automatic reconnect.
Original post: headscale-系列：Headscale-SaaS-环境下的用户无缝切换实战
This post explains how to evolve headscale from a monolith into a near linearly scalable cluster using cluster_id sharding, shared PostgreSQL, an admission/control service (ACS), strict query isolation, and incremental netmap rebuilds.
Original post: headscale 系列：组建 headscale 集群，把设备接入能力做成“无限接近无限”