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28 lines
785 B
Bash
28 lines
785 B
Bash
#! /bin/bash
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set -e
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# if postgres database does not exist in $PGDATA
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if [ ! -s "$PGDATA/PG_VERSION" ]; then
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# get a binary backup of the database on $MASTER_NODE
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pg_basebackup -d "host=$MASTER_NODE password='$REPLICATION_PASSWORD' port=5432 user=$REPLICATION_USER" -D ${PGDATA} -vP
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# indicate postgres should start in hot standby mode
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touch "$PGDATA/standby.signal"
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# write replication settings to config file
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cat >> ${PGDATA}/postgresql.conf <<-EOF
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primary_conninfo = 'host=$MASTER_NODE password=\\'$REPLICATION_PASSWORD\\' port=5432 user=$REPLICATION_USER'
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# touch this file to promote this node to master
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promote_trigger_file = '/tmp/touch_to_promote_to_master'
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EOF
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chown postgres. ${PGDATA} -R
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chmod 700 ${PGDATA} -R
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fi
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# start postgres
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gosu postgres postgres
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