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Get service module working with sudo, add list=status, better error messages.

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When running the service module via sudo, `$PATH` didn't contain `/sbin`,
so the service binary couldn't be found.  This just runs `/sbin/service`
directly.  Output is spewed to stderr on error.

Added `list=status` to include the output of `service <cmd> status`.
This commit is contained in:
John Kleint 2012-04-27 13:35:24 -04:00
parent 40f5469869
commit c6db4e8fa3
1 changed files with 36 additions and 17 deletions
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53
library/service
View file

@ -21,13 +21,22 @@ try:
import json
except ImportError:
import simplejson as json
import os
import sys
import shlex
import subprocess
# ===========================================
SERVICE = '/sbin/service'
def _run(cmd):
''' :Return: A tuple of ``(returncode, stdout, stderr)`` resulting from executing
`cmd` with the shell. '''
process = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
stdout, stderr = process.communicate()
return (process.returncode, stdout, stderr)
argfile = sys.argv[1]
args = open(argfile, 'r').read()
items = shlex.split(args)
@ -46,26 +55,31 @@ for arg in items:
name = params['name']
state = params.get('state','unknown')
list_ = params.get('list')
# running and started are the same
if state not in [ 'running', 'started', 'stopped', 'restarted' ]:
print json.dumps(dict(failed=True, msg='invalid state'))
sys.exit(1)
if list_ and list_ not in ('status',):
print json.dumps(dict(failed=True, msg='invalid argument to list'))
sys.exit(1)
# ===========================================
# get service status
status = os.popen("service %s status" % name).read()
rc, stdout, stderr = _run("%s %s status" % (SERVICE, name))
# ===========================================
# determine if we are going to change anything
running = False
if status.find("not running") != -1:
if stdout.find("not running") != -1:
running = False
elif status.find("running") != -1:
elif stdout.find("running") != -1:
running = True
elif name == 'iptables' and status.find("ACCEPT") != -1:
elif name == 'iptables' and stdout.find("ACCEPT") != -1:
# iptables status command output is lame
# TODO: lookup if we can use a return code for this instead?
running = True
@ -81,32 +95,37 @@ elif state == "restarted":
# ===========================================
# run change commands if we need to
def _run(cmd):
return subprocess.call(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
rc = 0
if changed:
if state in ('started', 'running'):
rc = _run("service %s start" % name)
rc, stdout, stderr = _run("%s %s start" % (SERVICE, name))
elif state == 'stopped':
rc = _run("service %s stop" % name)
rc, stdout, stderr = _run("%s %s stop" % (SERVICE, name))
elif state == 'restarted':
rc1 = _run("service %s stop" % name)
rc2 = _run("service %s start" % name)
rc = rc1 and rc2
rc1, stdout1, stderr1 = _run("%s %s stop" % (SERVICE, name))
rc2, stdout2, stderr2 = _run("%s %s start" % (SERVICE, name))
rc = rc1 and rc2
stdout = stdout1 + stdout2
stderr = stderr1 + stderr2
if rc != 0:
# yeah, should probably include output of failure...
print json.dumps({
"failed" : 1,
"rc" : rc
"rc" : rc,
})
print >> sys.stderr, stdout + stderr
sys.exit(1)
# ===============================================
# success
print json.dumps({
"changed" : changed
})
result = {"changed": changed}
if list_ == 'status':
rc, stdout, stderr = _run("%s %s status" % (SERVICE, name))
result['status'] = stdout
print json.dumps(result)