不断调试，更新，你若有兴趣一起参与
#!/usr/bin/env python3
import os
import subprocess
import platform
import re
import socket
1、检查操作系统版本
def check_system_version():
try:
with open('/etc/os-release', 'r') as f:
for line in f:
if line.startswith('ID='):
id_value = line.strip().split('=')[1].strip('"')
elif line.startswith('VERSION_ID='):
version_id_value = line.strip().split('=')[1].strip('"')
if id_value == 'openEuler' and version_id_value == '22.03':
print("This system is openEuler 22.03.")
else:
print("This system is not openEuler 22.03.")
exit(1)
except Exception as e:
print(f"An error occurred: {e}")
exit(1)
2、检查是否存在当前系统对应的系统ISO文件
def get_filename_from_os_info():
os_release_path = "/etc/os-release"
if os.path.exists(os_release_path):
with open(os_release_path, "r") as f:
for line in f:
if line.startswith("NAME="):
name = line.split("=")[1].strip().replace('"', '')
elif line.startswith("VERSION="):
version = line.split("=")[1].strip().replace('"', '')
把( )替换成 - 号
version = version.replace('(', '-').replace(')', '')
去除版本号中的空格
version = version.replace(' ', '')
else:
return None
uname_output = subprocess.check_output(["uname", "-m"]).decode().strip()
return f"{name}-{version}-{uname_output}-DVD.ISO"
def check_iso_exists():
iso_filename = get_filename_from_os_info()
iso_path = os.path.join("/mnt/iso", iso_filename)
if os.path.exists(iso_path):
print(f"你已上传文件，在/mnt/iso目录下存在操作系统ISO文件：{iso_filename} 。")
else:
print(f"请检查，在/mnt/iso目录下不存在操作系统ISO文件：{iso_filename}。")
exit(1)
def create_cdrom_dir():
cdrom_path = "/mnt/cdrom"
if not os.path.exists(cdrom_path):
os.makedirs(cdrom_path)
def mount_iso():
iso_path = f"/mnt/iso/openEuler-{version}-{platform.machine()}-dvd.iso"
cdrom_path = "/mnt/cdrom"
try:
subprocess.run(["mount", "-o", "loop", iso_path, cdrom_path], check=True)
except subprocess.CalledProcessError:
print("挂载ISO文件失败。程序终止。")
exit(1)
def setup_yum_source():
with open("/etc/yum.repos.d/cdrom.repo", "w") as f:
f.write("""[cdrom]
name=cdrom
baseurl=file:///mnt/cdrom/
enabled=1
gpgcheck=0
""")
subprocess.run(["yum", "clean", "all"], check=True)
def install_jdk():
subprocess.run(["yum", "install", "java-1.8.0-openjdk"], check=True)
jdk_version = subprocess.run(["java", "-version"], capture_output=True, text=True).stdout
if "1.8." not in jdk_version:
print("JDK版本不正确，应为1.8.xx。程序终止。")
exit(1)
def install_python3():
subprocess.run(["yum", "install", "python39"], check=True)
python_version = subprocess.run(["python3", "--version"], capture_output=True, text=True).stdout.strip()
if "3.9." not in python_version:
print("Python3版本不正确，应为3.9.x。程序终止。")
exit(1)
def check_gauss_files():
if not os.path.exists("/opt/openGauss-5.0.0-x86_64.tar.gz"):
print("Gauss数据库文件不存在，应为/opt/openGauss-5.0.0-x86_64.tar.gz。程序终止。")
exit(1)
def set_hostname():
default_hostname = "ogserver"
new_hostname = input(f"请将主机名改为{default_hostname}，确认吗？ (y/n): ").strip().lower()
if new_hostname != 'y' and not new_hostname:
new_hostname = input("请输入正确的主机名: ").strip()
subprocess.run(["hostnamectl", "set-hostname", new_hostname], check=True)
def check_ip_and_mac():
ip_address = socket.gethostbyname(socket.gethostname())
confirm_ip = input(f"当前服务器联网IP地址为{ip_address}，是否作为对外服务IP地址？ (y/n): ").strip().lower()
if confirm_ip != 'y':
print("IP地址不正确，程序终止。")
exit(1)
hostname = socket.gethostname()
mac_address = subprocess.run(["ip", "-o", "-4", "addr", "list", f"{hostname}"], capture_output=True, text=True).stdout
mac_address = re.search(r'link/ether ([0-9a-fA-F:]+)', mac_address).group(1)
confirm_mac = input(f"当前IP的MAC地址为{mac_address}，是否为安全设备备案的MAC地址？ (y/n): ").strip().lower()
if confirm_mac != 'y':
print("MAC地址不正确，程序终止。")
exit(1)
def configure_hosts():
hostname = socket.gethostname()
ip_address = socket.gethostbyname(hostname)
hosts_path = "/etc/hosts"
with open(hosts_path, "r") as f:
hosts_content = f.readlines()
new_entry = f"{ip_address} {hostname}\n"
if new_entry not in hosts_content:
with open(hosts_path, "a") as f:
f.write(new_entry)
def disable_firewall_and_selinux():
services = ["firewalld"]
for service in services:
subprocess.run(["systemctl", "stop", service], check=True)
subprocess.run(["systemctl", "disable", service], check=True)
selinux_config = "/etc/selinux/config"
with open(selinux_config, "r") as f:
lines = f.readlines()
new_lines = []
for line in lines:
if line.startswith("SELINUX="):
line = "SELINUX=disabled\n"
new_lines.append(line)
with open(selinux_config, "w") as f:
f.writelines(new_lines)
try:
subprocess.run(["setenforce", "0"], check=True)
except subprocess.CalledProcessError:
print("设置SELinux为disabled失败。请手动检查。")
def disable_transparent_hugepage():
grub_config = "/etc/default/grub"
with open(grub_config, "r") as f:
lines = f.readlines()
new_lines = []
for line in lines:
if "transparent_hugepage" not in line:
new_lines.append(line)
elif "transparent_hugepage=never" not in line:
new_lines.append("transparent_hugepage=never\n")
with open(grub_config, "w") as f:
f.writelines(new_lines)
subprocess.run(["grub2-mkconfig", "-o", "/boot/grub2/grub.cfg"], check=True)
if name == "main":
check_system_version()
check_iso_exists()
create_cdrom_dir()
mount_iso()
setup_yum_source()
install_jdk()
install_python3()
check_gauss_files()
set_hostname()
check_ip_and_mac()
configure_hosts()
disable_firewall_and_selinux()
disable_transparent_hugepage()
print("openGauss 5.0.0 x86架构数据库安装前的准备工作已完成。")
未完，待续