Alternative to virsh (libvirt)
I am using virsh list to display the list of vms running on the computer. I want the information printed in the process in the form of a 2d array.
One way to go about this is to have the output, use tokenizer and store it in the array. But is there some other way where I can get directly this into the form of an array o开发者_StackOverflowr something so that code is much more scalable. (Something that I could think of was using libvirt api in python)
There are indeed libvirt Python API bindings.
import libvirt
conn = libvirt.openReadOnly(None) # $LIBVIRT_DEFAULT_URI, or give a URI here
assert conn, 'Failed to open connection'
names = conn.listDefinedDomains()
domains = map(conn.lookupByName, names)
ids = conn.listDomainsID()
running = map(conn.lookupByID, ids)
columns = 3
states = {
libvirt.VIR_DOMAIN_NOSTATE: 'no state',
libvirt.VIR_DOMAIN_RUNNING: 'running',
libvirt.VIR_DOMAIN_BLOCKED: 'blocked on resource',
libvirt.VIR_DOMAIN_PAUSED: 'paused by user',
libvirt.VIR_DOMAIN_SHUTDOWN: 'being shut down',
libvirt.VIR_DOMAIN_SHUTOFF: 'shut off',
libvirt.VIR_DOMAIN_CRASHED: 'crashed',
}
def info(dom):
[state, maxmem, mem, ncpu, cputime] = dom.info()
return '%s is %s,' % (dom.name(), states.get(state, state))
print 'Defined domains:'
for row in map(None, *[iter(domains)] * columns):
for domain in row:
if domain:
print info(domain),
print
print
print 'Running domains:'
for row in map(None, *[iter(running)] * columns):
for domain in row:
if domain:
print info(domain),
print
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