[root@node2 ~(keystone_admin)]# glance image-create --name bc_win2012 --disk-format qcow2 --container-format ovf --f /meta/iso/bc_win2012.qcow2
+------------------+----------------------------------------------------------------------------------+
| Property | Value |
+------------------+----------------------------------------------------------------------------------+
| checksum | 13422230096bef83fade0418d64e9890 |
| container_format | ovf |
| created_at | 2020-02-26T12:03:58Z |
| direct_url | rbd://d484bdf2-c9ba-4e1f-a69f-86586e0dc8ad/images/b9168a42-244f-4642-b08f- |
| | 3e6fdc05645e/snap |
| disk_format | qcow2 |
| id | b9168a42-244f-4642-b08f-3e6fdc05645e |
| min_disk | 0 |
| min_ram | 0 |
| name | bc_win2012 |
| os_hash_algo | sha512 |
| os_hash_value | 30025e558627c60e7cd88aab01f193c2ca38fb73454c4fcd8c5bfc9b38cd23e963fa33aac3089f55 |
| | 8de746524a290d3c9e2dd87a1e919c60928fa51b9646e18d |
| os_hidden | False |
| owner | 504fb6fa98c443899288ec9e35b487a8 |
| protected | False |
| size | 8959033344 |
| status | active |
| tags | [] |
| updated_at | 2020-02-26T12:10:15Z |
| virtual_size | Not available |
| visibility | shared |
+------------------+----------------------------------------------------------------------------------+
Categories
使用virsh执行qemu-monitor命令
virsh 可以发送命令给qemu-monitor
virsh # help qemu-monitor-command host
NAME
qemu-monitor-command - QEMU Monitor Command
SYNOPSIS
qemu-monitor-command <domain> [--hmp] [--pretty] {[--cmd] <string>}...
DESCRIPTION
QEMU Monitor Command
OPTIONS
[--domain] <string> domain name, id or uuid
--hmp command is in human monitor protocol
--pretty pretty-print any qemu monitor protocol output
[--cmd] <string> command
Categories
做新旧命令兼容的一种方式
将无法解析的命令
1. catch parse异常.
2. 错误输出直接重定向/dev/null.避免干扰output
#!/usr/bin/env python
import sys
import os
import subprocess
from optparse import OptionParser
class redirect_stdout_stderr(object):
def __init__(self, stream):
# Save the old std streams
self.old_stream = sys.stdout
self.old_error_stream = sys.stderr
self.fstream = stream
def __enter__(self):
# Change the std streams to your streams when entering
sys.stdout = self.fstream
sys.stderr = self.fstream
def __exit__(self, exc_type, exc_value, exc_traceback):
# Change the std streams back to the original streams while exiting
sys.stdout = self.old_stream
sys.stderr = self.old_error_stream
if __name__ == "__main__":
usage = "mdfscli [options]"
parser = OptionParser(usage)
#需要兼容的旧命令
parser.add_option("--build-info", action="store_true", dest="cmd_build_info", \
default=False, help="Show build information")
newappcli = ""
try:
# parse command line arguments
with redirect_stdout_stderr(open(os.devnull, 'w')):
(options, args) = parser.parse_args()
except:
newappcli = "/usr/share/yourapp/newappcli %s" % (" ".join(sys.argv[1:]))
else:
if options.cmd_build_info:
newappcli = "/usr/share/yourapp/newappcli --build-info"
else:
newappcli = "/usr/share/yourapp/newappcli %s" % (" ".join(sys.argv[1:]))
cmd = subprocess.Popen(newappcli, shell=True, stdout=sys.stdout, stderr=sys.stderr, close_fds=True)
sys.exit(cmd.wait())