Listing 4. promote.sh

#!/bin/bash

CLUSTER=sql_cluster
H1=master.example.com
H2=slave.example.com
U=postgres

DB1=contactdb
DB2=contactdb

su - postgres -c slonik <<_EOF_
cluster name = $CLUSTER;

node 1 admin conninfo = 'dbname=$DB1 host=$H1 user=$U';
node 2 admin conninfo = 'dbname=$DB2 host=$H2 user=$U';

failover (id = 1, backup node = 2);
drop node (id = 1, event node = 2);