x/terracotta
Code Issues Proposed changes

Updated the vm-placement script to display more information in a better way

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This commit is contained in:
Anton Beloglazov 2012-10-09 11:09:21 +11:00
parent 5a39380523
commit a8287e733b
1 changed files with 32 additions and 11 deletions
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43
vm-placement.py
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@ -16,7 +16,9 @@
from novaclient.v1_1 import client
import neat.common as common
import neat.globals.manager as manager
from neat.config import *
import sys
def vm_hostname(vm):
@ -25,23 +27,42 @@ def vm_hostname(vm):
config = read_and_validate_config([DEFAILT_CONFIG_PATH, CONFIG_PATH],
REQUIRED_FIELDS)
hosts = common.parse_compute_hosts(config['compute_hosts'])
db = manager.init_db(config['sql_connection'])
nova = client.Client(config['os_admin_user'],
config['os_admin_password'],
config['os_admin_tenant_name'],
config['os_auth_url'],
service_type="compute")
hosts = common.parse_compute_hosts(config['compute_hosts'])
hosts_cpu_total, hosts_ram_total = db.select_host_characteristics()
hosts_to_vms = manager.vms_by_hosts(nova, hosts)
vms = [item for sublist in hosts_to_vms.values() for item in sublist]
vms_names = sorted((str(nova.servers.get(vm).human_id), vm) for vm in vms)
vms_cpu_usage = db.select_last_cpu_mhz_for_vms()
for vm in vms:
if not vm in vms_cpu_usage:
vms_cpu_usage[vm] = 0
vms_ram_usage = manager.vms_ram_limit(nova, vms)
placement = dict((str(vm.human_id),
(vm.status,
vm_hostname(vm),
nova.hosts.get(vm_hostname(vm))[2].memory_mb))
for vm in nova.servers.list())
hosts_cpu_usage = {}
hosts_ram_usage = {}
for host, vms in hosts_to_vms.items():
hosts_cpu_usage[host] = sum(vms_cpu_usage[x] for x in vms)
hosts_ram_usage[host] = manager.host_used_ram(nova, host)
for vm in sorted(placement.keys()):
print '{0:10} {1:10} {2} [{3} MB used]'.format(vm,
placement[vm][0],
placement[vm][1],
placement[vm][2])
for host, vms in hosts_to_vms.items():
print '{0:10} {1:5d}/{2:5d} MHz {3:5d}/{4:5d} MB'.format(
host,
hosts_cpu_usage[host],
hosts_cpu_total[host],
hosts_ram_usage[host],
hosts_ram_total[host])
for vm, uuid in vms_names:
if uuid in vms:
print ' {0:12} {1:5d} MHz {2:11d} MB'.format(
vm,
vms_cpu_usage[uuid],
vms_ram_usage[uuid])