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more robust stat handling from ceph df output

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This commit is contained in:
Rye Terrell 2017-07-21 11:46:32 -05:00
parent e0c537a453
commit 1c21e8ab31
1 changed files with 6 additions and 6 deletions
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12
cluster/juju/layers/kubernetes-master/actions/create-rbd-pv
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@ -23,6 +23,7 @@ from subprocess import check_call
from subprocess import check_output
from subprocess import CalledProcessError
from tempfile import TemporaryDirectory
import json
import re
import os
import sys
@ -179,14 +180,13 @@ def get_monitors():
def get_available_space():
''' Determine the space available in the RBD pool. Throw an exception if
the RBD pool ('rbd') isn't found. '''
command = ['ceph', 'df']
command = 'ceph df -f json'.split()
debug_command(command)
out = check_output(command).decode('utf-8')
for line in out.splitlines():
stripped = line.strip()
if stripped.startswith('rbd'):
M = stripped.split()[-2].replace('M', '')
return int(M)
data = json.loads(out)
for pool in data['pools']:
if pool['name'] == 'rbd':
return int(pool['stats']['max_avail'] / (1024 * 1024))
raise UnknownAvailableSpaceException('Unable to determine available space.') # noqa