通过python挂载数据盘到rhel Linux azure虚拟机后如何自动创建PV、VG、LV、格式化、挂载文件系统

Question

根据 Microsoft 文档，我能够创建数据磁盘并将其附加到 RHEL azure 虚拟机，我可以将数据磁盘附加到我的 Linux Azure VM，并通过登录 VM 手动初始化磁盘。一切都适合我。

但这还不够，因为我想通过代码自动完成整个过程。您能给我一些代码示例或相关指南吗？谢谢！

Answer 1

要在通过 python 将数据磁盘附加到 rhel Linux azure VM 后自动创建 PV、VG、LV、格式、挂载文件系统，您可以使用以下脚本使用 paramiko

import paramiko


HOST = "123.456.789.105" #updatewith ur own VM details
USERNAME = "arko"
PASSWORD = "Madhuri@123"
VG_NAME = "vg_data_new"  
LV_NAME = "lv_data_new"  
MOUNT_POINT = "/mnt/data_new"  

commands = [
    "echo y | sudo pvcreate -ff /dev/sdb",  
    f"sudo vgcreate {VG_NAME} /dev/sdb",
    f"sudo lvcreate -y -l 100%FREE -n {LV_NAME} {VG_NAME}",
    f"sudo mkfs.ext4 -F /dev/{VG_NAME}/{LV_NAME}",
    f"sudo mkdir -p {MOUNT_POINT}",
    f"sudo mount /dev/{VG_NAME}/{LV_NAME} {MOUNT_POINT}",
    f"echo '/dev/{VG_NAME}/{LV_NAME} {MOUNT_POINT} ext4 defaults 0 0' | sudo tee -a /etc/fstab"
]

def execute_commands(commands):
    print("Debug: Starting command execution on /dev/sdb with new volume group and logical volume names")
    try:
        
        client = paramiko.SSHClient()
        client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        client.connect(HOST, username=USERNAME, password=PASSWORD)
        
        
        for command in commands:
            print(f"Executing: {command}")
            stdin, stdout, stderr = client.exec_command(command)
            output = stdout.read().decode()
            error = stderr.read().decode()
            if output:
                print(f"Output: {output}")
            if error:
                print(f"Error: {error}")
        
        print("Disk setup completed successfully with new names.")
        
    except Exception as e:
        print(f"An error occurred: {e}")
    finally:
        client.close()


execute_commands(commands)

您可以通过登录虚拟机并执行 lsblk 来验证这一点