Templates / flowchart

Load-balanced network topology

A standard three-tier topology: load balancer, app tier, and a primary/replica database pair.

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flowchart

flowchart TD
    internet((Internet)) --> lb[Load balancer]
    lb --> app1[App server 1]
    lb --> app2[App server 2]
    lb --> app3[App server 3]
    app1 --> primary[(Primary DB)]
    app2 --> primary
    app3 --> primary
    primary -.replication.-> replica[(Read replica)]
    app1 -.reads.-> replica

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