Fix handling of list=status such that it will actually work in absense of the state command, to
make it useful from /usr/bin/ansible and the API. Also some minor style fixes.
This commit is contained in:
Michael DeHaan
parent
2604d714e0
commit
7c9c3b306a
1 changed files with 85 additions and 55 deletions
138
service
138
service
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@ -25,18 +25,19 @@ import sys
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import shlex
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import subprocess
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# TODO: switch to fail_json and other helper functions
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# like other modules are using
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# ===========================================
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SERVICE = '/sbin/service'
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def _run(cmd):
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''' :Return: A tuple of ``(returncode, stdout, stderr)`` resulting from executing
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`cmd` with the shell. '''
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# returns (rc, stdout, stderr) from shell command
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process = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
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stdout, stderr = process.communicate()
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return (process.returncode, stdout, stderr)
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argfile = sys.argv[1]
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args = open(argfile, 'r').read()
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items = shlex.split(args)
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@ -48,84 +49,113 @@ if not len(items):
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params = {}
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for arg in items:
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if "=" not in arg:
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print json.dumps(dict(failed=True, msg='expected arguments of the form name=value'))
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print json.dumps(dict(failed=True, msg='expected key=value format arguments'))
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sys.exit(1)
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(name, value) = arg.split("=")
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params[name] = value
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name = params['name']
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state = params.get('state','unknown')
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list_ = params.get('list')
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name = params.get('name', None)
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if name is None:
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print json.dumps(dict(failed=True, msg='missing name'))
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sys.exit(1)
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state = params.get('state', None)
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list_items = params.get('list', None)
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# running and started are the same
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if state not in [ 'running', 'started', 'stopped', 'restarted' ]:
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print json.dumps(dict(failed=True, msg='invalid state'))
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if state and state not in [ 'running', 'started', 'stopped', 'restarted' ]:
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print json.dumps(dict(failed=True, msg='invalid value for state'))
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sys.exit(1)
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if list_ and list_ not in ('status',):
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print json.dumps(dict(failed=True, msg='invalid argument to list'))
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if list_items and list_items not in [ 'status' ]:
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print json.dumps(dict(failed=True, msg='invalid value for list'))
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sys.exit(1)
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# ===========================================
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# get service status
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rc, stdout, stderr = _run("%s %s status" % (SERVICE, name))
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rc, status_stdout, status_stderr = _run("%s %s status" % (SERVICE, name))
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status = status_stdout + status_stderr
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# ===========================================
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# determine if we are going to change anything
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running = False
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if stdout.find("not running") != -1:
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if status_stdout.find("not running") != -1:
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running = False
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elif stdout.find("running") != -1:
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elif status_stdout.find("running") != -1:
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running = True
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elif name == 'iptables' and stdout.find("ACCEPT") != -1:
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elif name == 'iptables' and status_stdout.find("ACCEPT") != -1:
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# iptables status command output is lame
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# TODO: lookup if we can use a return code for this instead?
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running = True
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changed = False
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if not running and state == "started":
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changed = True
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elif running and state == "stopped":
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changed = True
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elif state == "restarted":
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changed = True
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# ===========================================
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# run change commands if we need to
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if state:
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# a state change command has been requested
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# ===========================================
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# determine if we are going to change anything
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changed = False
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if not running and state == "started":
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changed = True
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elif running and state == "stopped":
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changed = True
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elif state == "restarted":
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changed = True
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# ===========================================
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# run change commands if we need to
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rc = 0
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if changed:
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if state in ('started', 'running'):
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rc, stdout, stderr = _run("%s %s start" % (SERVICE, name))
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elif state == 'stopped':
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rc, stdout, stderr = _run("%s %s stop" % (SERVICE, name))
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elif state == 'restarted':
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rc1, stdout1, stderr1 = _run("%s %s stop" % (SERVICE, name))
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rc2, stdout2, stderr2 = _run("%s %s start" % (SERVICE, name))
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rc = rc1 and rc2
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stdout = stdout1 + stdout2
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stderr = stderr1 + stderr2
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if rc != 0:
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print json.dumps({
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"failed" : 1,
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"rc" : rc,
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})
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print >> sys.stderr, stdout + stderr
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sys.exit(1)
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rc = 0
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if changed:
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if state in ('started', 'running'):
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rc, stdout, stderr = _run("%s %s start" % (SERVICE, name))
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elif state == 'stopped':
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rc, stdout, stderr = _run("%s %s stop" % (SERVICE, name))
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elif state == 'restarted':
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rc1, stdout1, stderr1 = _run("%s %s stop" % (SERVICE, name))
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rc2, stdout2, stderr2 = _run("%s %s start" % (SERVICE, name))
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rc = rc1 and rc2
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stdout = stdout1 + stdout2
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stderr = stderr1 + stderr2
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# ===============================================
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# success
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if rc != 0:
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print json.dumps({
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"failed" : 1,
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"rc" : rc,
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})
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print >> sys.stderr, stdout + stderr
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sys.exit(1)
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result = {"changed": changed}
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# ===============================================
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# success
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result = {"changed": changed}
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if list_ == 'status':
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rc, stdout, stderr = _run("%s %s status" % (SERVICE, name))
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result['status'] = stdout
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if list_items and list_items in [ 'status' ]:
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result['status'] = stdout
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print json.dumps(result)
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print json.dumps(result)
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elif list_items is not None:
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# solo list=status mode, don't change anything, just return
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# suitable for /usr/bin/ansible usage or API, playbooks
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# not so much
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print json.dumps({
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"status" : status
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})
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else:
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print json.dumps(dict(failed=True, msg="expected state or list parameters"))
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sys.exit(0)
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