docker run --name pgsmaster -p 5500:5432 -e POSTGRES_PASSWORD=pgsmaster -v $(pwd)/pgsmaster:/var/lib/postgresql/data -d postgres
docker run --name pgsslave -p 5501:5432 -e POSTGRES_PASSWORD=pgsslave -v $(pwd)/pgsslave:/var/lib/postgresql/data -d postgres
进入以上主、从库对应的实际挂载目录执行下面的操作
// replication_username: 复制账号; slave_ip: 从库所在的服务器ip
host replication <replication_username> <slave_ip>/32 md5
synchronous_standby_names = '*'
# 1.进入容器
docker exec -it pgsmaster bash
# 2.连接PostgreSQL
psql -U postgres
# 3.创建用户
set synchronous_commit =off;
// replication_username: 对应上面设置的复制账号; replication_username_password: 认证密码
create role <replication_username> login replication encrypted password '<replication_username_password>';
# 4.验证用户
\du
hot_standby_feedback = on
standby_mode = 'on'
// replication_username: 复制账号(同主库); master_ip: 主库所在的服务器ip; master_port: 主库端口; replication_username_password: 认证密码
primary_conninfo = 'host=<master_ip> port=<master_port> user=<replication_username> password=<replication_username_password>'
docker stop pgsmaster
docker stop pgsslave
// 1.1 已ssh认证,请将$(pwd)更改为实际的路径
rsync -cva --inplace --exclude=*pg_xlog* $(pwd)/pgsmaster/ <slave_ip>:$(pwd)/pgsslave/
// 1.2 无ssh认证,请将$(pwd)更改为实际的路径
rsync -cva --inplace --exclude=*pg_xlog* $(pwd)/pgsmaster/ ssh root@<slave_ip>:$(pwd)/pgsslave/
docker start pgsmaster
docker start pgsslave
// 进入主库容器
docker exec -it pgsmaster bash
// 查看复制状态
psql -U postgres -x -c "select * from pg_stat_replication;"
查看复制状态