postgres 前言

PostgreSQL 是一个功能强大的开源对象关系数据库系统，拥有超过 35 年的积极开发经验这为其赢得了可靠性、功能稳健性和性能的良好声誉。

通过官方文档可以找到大量描述如何安装和使用 PostgreSQL 的信息。开源社区提供了许多有用的地方来熟悉PostgreSQL，了解其运作方式，并寻找职业机会。了解更多有关如何与社区互动。

download postgres

postgres all	pgadmin all	文档
download	download	参考

Linux 各系统下载使用参考

Red Hat

Rocky Linux

Oracle Linux

AlmaLinux

ubuntu

suselinux

esxi

RHEL标准安装

系统安装参考

YUM参考

MobaXterm 远程连接工具

Red Hat Enterprise 9.0 文档

Kickstart 生成器

download

参考

配置参考

download

参考

Kickstart

版本兼容性

postgres 一键自动化部署

最终实现在线下载postgres，编译安装postgres，环境变量，初始化postgres数据库，用户密码配置，用户权限设置，远程连接设置，数据库创建postdb，启动脚本创建，防火墙配置，安装包删除。
postgres/Report@123 #postgres用户名密码
postgres / postgres #用户名，组
/opt/pgsql/data #数据目录
/opt/pgsql #安装目录
postgresql 5432 #postgresql端口
/opt/pgsql/data/pg_hba.conf #远程连接授权
/opt/pgsql/data/postgresql.conf #远程连接授权
/usr/lib/systemd/system/postgresql.service #postgresql启动服务脚本
su - postgres -c 'psql -c "SELECT version();"' #postgres版本获取
if 判断是否存在postgres用户（if ! compgen -u postgres &> /dev/null）
increase indent：Tab
decrease indent：Shift+Tab

vim /postgres_15_install.sh

#!/bin/bash
# -*- coding: utf-8 -*-
# Author: CIASM
# update 2023/06/02
# increase indent：Tab
# decrease indent：Shift+Tab
# install source postgres

install_postgres (){

if ! compgen -u postgres  &> /dev/null
    then
	
	if [ $? -eq 0 ];then
	
postgres_user=postgres
postgres_password=postgres@123

pgsql_opt=/opt
pgsql_url=https://ftp.postgresql.org/pub/source/v15.3/
pgsql_gz=postgresql-15.3.tar.gz
pgsql_data=data
pgsql_download=download
pgsql_pgsql=pgsql
pgsql_decompression_directory=postgresql-15.3
pgsql_installation_directory=/opt/pgsql

echo "Create user and groups for postgres Database service"
groupadd $postgres_user
useradd -m -g $postgres_user -d $pgsql_installation_directory $postgres_user

mkdir -p $pgsql_installation_directory/{/$pgsql_data,/$pgsql_download}
chown -R $postgres_user:$postgres_user $pgsql_installation_directory/$pgsql_data

echo "Firewall port development"
setenforce 0
sed -i 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config
firewall-cmd --zone=public --add-port=5432/tcp --permanent && firewall-cmd --reload

echo "Add postgres users to users and user groups"
echo "$postgres_password" | passwd --stdin $postgres_user

echo "Dependent installation"
yum install -y http://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm
yum install -y ncurses-devel readline-devel zlib zlib-devel perl-ExtUtils-Embed
yum install -y lz4-devel openssl openssl-devel libxml2 libxml2-devel pam pam-devel systemd-devel
yum install -y gcc gcc-c++ net-tools make cmake

echo "download pgsql"
wget -N -P $pgsql_opt/$pgsql_download $pgsql_url$pgsql_gz

echo "install pgsql"
tar -zxf $pgsql_opt/$pgsql_download/$pgsql_gz -C $pgsql_opt
cd $pgsql_opt/$pgsql_decompression_directory
./configure --prefix=$pgsql_installation_directory && make && make install
	
echo "pgsql environment variable"
su - postgres <<EOF
echo 'umask 022' >>  ~/.bash_profile
echo 'export PGHOME=/opt/pgsql' >>  ~/.bash_profile
echo 'export PGDATA=/opt/pgsql/data' >>  ~/.bash_profile
echo 'export PATH=PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/opt/pgsql/bin' >>  ~/.bash_profile
echo 'export MANPATH=/opt/pgsql/share/man' >>  ~/.bash_profile
echo 'export LD_LIBRARY_PATH=/opt/pgsql/lib' >>  ~/.bash_profile
echo 'export LANG=en_US.utf8' >>  ~/.bash_profile
source  ~/.bash_profile
/opt/pgsql/bin/initdb -D /opt/pgsql/data
/opt/pgsql/bin/pg_ctl -D /opt/pgsql/data -l logfile start
psql -c "ALTER USER postgres WITH PASSWORD 'Report@123'"
sed -i "59a\listen_addresses = '*'" /opt/pgsql/data/postgresql.conf
echo 'host    all             all             0.0.0.0/0             md5' >> /opt/pgsql/data/pg_hba.conf 
psql -c "SELECT version();"
psql -c "create database postdb owner postgres;"
psql -c "grant all privileges on database postdb to postgres;"
/opt/pgsql/bin/pg_ctl -D /opt/pgsql/data -l logfile reload
EOF

echo "postgresql.service add system"
cat >>/usr/lib/systemd/system/postgresql.service<<EOF
[Unit]
Description=PostgreSQL database server
After=network.target

[Service]
Type=forking
User=postgres
Group=postgres
Environment=PGHOME=/opt/pgsql
Environment=PGDATA=/opt/pgsql/data
ExecStart=/opt/pgsql/bin/pg_ctl -D /opt/pgsql/data start
ExecStop=/opt/pgsql/bin/pg_ctl -D /opt/pgsql/data -l logfile stop
ExecReload=/opt/pgsql/bin/pg_ctl -D /opt/pgsql/data -l logfile reload
Restart=always

[Install]
WantedBy=multi-user.target
EOF

systemctl daemon-reload && systemctl enable postgresql

echo "Deleting an installation package"
rm -rf $pgsql_opt/$pgsql_download $pgsql_opt/$pgsql_decompression_directory

	echo -e "\033[32mThe postgresql Install Success...\033[0m" 
	else
	echo -e "\033[31mThe postgresql Install Failed...\033[0m" 
	exit 1
	fi
else
	echo -e "\033[33mThe postgresql Install already...\033[0m"
fi
}

main (){
	install_postgres
}
 
main