Customize Postgresql HA structure

Hi Team,

Can we build a HA structure with 2 standalone Postgresql-server?

In the theory,we should can build Postgresql-server in shared storage,

then we will prepare another cold standby Postgresql-server listening to
the active server.

When the active crash or shutdown,the cold standby server will auto replace
original server.

Is this feasible?Or where can we find related article?

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