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deploy/scripts/setup-replication.sh
2026-06-25 09:41:16 +08:00

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#!/bin/sh
set -e
# 红动未来 - PostgreSQL 主从复制初始化
# 在 Host1(主库)上执行一次,为从库复制做准备
# 用法:sh deploy/scripts/setup-replication.sh
POSTGRES_CONTAINER="${POSTGRES_CONTAINER:-postgres}"
echo "=== 1. 添加 pg_hba 复制规则 ==="
docker exec "$POSTGRES_CONTAINER" sh -c 'echo "host replication all 0.0.0.0/0 md5" >> /var/lib/postgresql/data/pg_hba.conf'
echo "=== 2. 重载 PostgreSQL 配置 ==="
docker exec "$POSTGRES_CONTAINER" psql -U postgres -c "SELECT pg_reload_conf();"
echo "=== 3. 创建物理复制槽 ==="
docker exec "$POSTGRES_CONTAINER" psql -U postgres -c "SELECT pg_create_physical_replication_slot('replication_slot_slave') WHERE NOT EXISTS (SELECT 1 FROM pg_replication_slots WHERE slot_name = 'replication_slot_slave');"
echo "=== 完成 ==="
echo "现在可以在从库(Host2)上启动 PostgreSQL 从库:"
echo " docker compose -f deploy/docker-compose-infra-slave.yml up -d postgres-standby"