ansible/lib/ansible/callbacks.py
2012-08-08 21:16:48 -04:00

411 lines
12 KiB
Python

# (C) 2012, Michael DeHaan, <michael.dehaan@gmail.com>
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
import utils
import sys
import getpass
import os
import subprocess
from ansible.color import stringc
cowsay = None
if os.path.exists("/usr/bin/cowsay"):
cowsay = "/usr/bin/cowsay"
elif os.path.exists("/usr/games/cowsay"):
cowsay = "/usr/games/cowsay"
def vv(msg, host=None):
return verbose(msg, host=host, caplevel=1)
def vvv(msg, host=None):
return verbose(msg, host=host, caplevel=2)
def verbose(msg, host=None, caplevel=2):
if utils.VERBOSITY > caplevel:
if host is None:
print stringc(msg, 'blue')
else:
print stringc("<%s> %s" % (host, msg), 'blue')
class AggregateStats(object):
''' holds stats about per-host activity during playbook runs '''
def __init__(self):
self.processed = {}
self.failures = {}
self.ok = {}
self.dark = {}
self.changed = {}
self.skipped = {}
def _increment(self, what, host):
''' helper function to bump a statistic '''
self.processed[host] = 1
prev = (getattr(self, what)).get(host, 0)
getattr(self, what)[host] = prev+1
def compute(self, runner_results, setup=False, poll=False):
''' walk through all results and increment stats '''
for (host, value) in runner_results.get('contacted', {}).iteritems():
if ('failed' in value and bool(value['failed'])) or ('rc' in value and value['rc'] != 0):
self._increment('failures', host)
elif 'skipped' in value and bool(value['skipped']):
self._increment('skipped', host)
elif 'changed' in value and bool(value['changed']):
if not setup and not poll:
self._increment('changed', host)
self._increment('ok', host)
else:
if not poll or ('finished' in value and bool(value['finished'])):
self._increment('ok', host)
for (host, value) in runner_results.get('dark', {}).iteritems():
self._increment('dark', host)
def summarize(self, host):
''' return information about a particular host '''
return dict(
ok = self.ok.get(host, 0),
failures = self.failures.get(host, 0),
unreachable = self.dark.get(host,0),
changed = self.changed.get(host, 0),
skipped = self.skipped.get(host, 0)
)
########################################################################
def regular_generic_msg(hostname, result, oneline, caption):
''' output on the result of a module run that is not command '''
if not oneline:
return "%s | %s >> %s\n" % (hostname, caption, utils.jsonify(result,format=True))
else:
return "%s | %s >> %s\n" % (hostname, caption, utils.jsonify(result))
def banner(msg):
if cowsay != None:
cmd = subprocess.Popen("%s -W 60 \"%s\"" % (cowsay, msg),
stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
(out, err) = cmd.communicate()
return "%s\n" % out
else:
return "\n%s ********************* " % msg
def command_generic_msg(hostname, result, oneline, caption):
''' output the result of a command run '''
rc = result.get('rc', '0')
stdout = result.get('stdout','')
stderr = result.get('stderr', '')
msg = result.get('msg', '')
if not oneline:
buf = "%s | %s | rc=%s >>\n" % (hostname, caption, result.get('rc',0))
if stdout:
buf += stdout
if stderr:
buf += stderr
if msg:
buf += msg
return buf + "\n"
else:
if stderr:
return "%s | %s | rc=%s | (stdout) %s (stderr) %s\n" % (hostname, caption, rc, stdout, stderr)
else:
return "%s | %s | rc=%s | (stdout) %s\n" % (hostname, caption, rc, stdout)
def host_report_msg(hostname, module_name, result, oneline):
''' summarize the JSON results for a particular host '''
failed = utils.is_failed(result)
msg = ''
if module_name in [ 'command', 'shell', 'raw' ] and 'ansible_job_id' not in result:
if not failed:
msg = command_generic_msg(hostname, result, oneline, 'success')
else:
msg = command_generic_msg(hostname, result, oneline, 'FAILED')
else:
if not failed:
msg = regular_generic_msg(hostname, result, oneline, 'success')
else:
msg = regular_generic_msg(hostname, result, oneline, 'FAILED')
return msg
###############################################
class DefaultRunnerCallbacks(object):
''' no-op callbacks for API usage of Runner() if no callbacks are specified '''
def __init__(self):
pass
def on_failed(self, host, res, ignore_errors=False):
pass
def on_ok(self, host, res):
pass
def on_error(self, host, msg):
pass
def on_skipped(self, host):
pass
def on_unreachable(self, host, res):
pass
def on_no_hosts(self):
pass
def on_async_poll(self, host, res, jid, clock):
pass
def on_async_ok(self, host, res, jid):
pass
def on_async_failed(self, host, res, jid):
pass
########################################################################
class CliRunnerCallbacks(DefaultRunnerCallbacks):
''' callbacks for use by /usr/bin/ansible '''
def __init__(self):
# set by /usr/bin/ansible later
self.options = None
self._async_notified = {}
def on_failed(self, host, res, ignore_errors=False):
self._on_any(host,res)
def on_ok(self, host, res):
self._on_any(host,res)
def on_unreachable(self, host, res):
if type(res) == dict:
res = res.get('msg','')
print "%s | FAILED => %s" % (host, res)
if self.options.tree:
utils.write_tree_file(
self.options.tree, host,
utils.jsonify(dict(failed=True, msg=res),format=True)
)
def on_skipped(self, host):
pass
def on_error(self, host, err):
print >>sys.stderr, "err: [%s] => %s\n" % (host, err)
def on_no_hosts(self):
print >>sys.stderr, "no hosts matched\n"
def on_async_poll(self, host, res, jid, clock):
if jid not in self._async_notified:
self._async_notified[jid] = clock + 1
if self._async_notified[jid] > clock:
self._async_notified[jid] = clock
print "<job %s> polling, %ss remaining"%(jid, clock)
def on_async_ok(self, host, res, jid):
print "<job %s> finished on %s => %s"%(jid, host, utils.jsonify(res,format=True))
def on_async_failed(self, host, res, jid):
print "<job %s> FAILED on %s => %s"%(jid, host, utils.jsonify(res,format=True))
def _on_any(self, host, result):
print host_report_msg(host, self.options.module_name, result, self.options.one_line)
if self.options.tree:
utils.write_tree_file(self.options.tree, host, utils.jsonify(result,format=True))
########################################################################
class PlaybookRunnerCallbacks(DefaultRunnerCallbacks):
''' callbacks used for Runner() from /usr/bin/ansible-playbook '''
def __init__(self, stats, verbose=utils.VERBOSITY):
self.verbose = verbose
self.stats = stats
self._async_notified = {}
def on_unreachable(self, host, msg):
item = None
if type(msg) == dict:
item = msg.get('item', None)
if item:
print "fatal: [%s] => (item=%s) => %s" % (host, item, msg)
else:
print "fatal: [%s] => %s" % (host, msg)
def on_failed(self, host, results, ignore_errors=False):
item = results.get('item', None)
if item:
msg = "failed: [%s] => (item=%s) => %s" % (host, item, utils.jsonify(results))
else:
msg = "failed: [%s] => %s" % (host, utils.jsonify(results))
print stringc(msg, 'red')
if ignore_errors:
print stringc("...ignoring", 'yellow')
def on_ok(self, host, host_result):
item = host_result.get('item', None)
# show verbose output for non-setup module results if --verbose is used
msg = ''
if not self.verbose or host_result.get("verbose_override",None) is not None:
if item:
msg = "ok: [%s] => (item=%s)" % (host,item)
else:
if 'ansible_job_id' not in host_result or 'finished' in host_result:
msg = "ok: [%s]" % (host)
else:
# verbose ...
if item:
msg = "ok: [%s] => (item=%s) => %s" % (host, item, utils.jsonify(host_result))
else:
if 'ansible_job_id' not in host_result or 'finished' in host_result:
msg = "ok: [%s] => %s" % (host, utils.jsonify(host_result))
if msg != '':
if not 'changed' in host_result or not host_result['changed']:
print stringc(msg, 'green')
else:
print stringc(msg, 'yellow')
def on_error(self, host, err):
item = err.get('item', None)
msg = ''
if item:
msg = "err: [%s] => (item=%s) => %s" % (host, item, err)
else:
msg = "err: [%s] => %s" % (host, err)
msg = stringc(msg, 'red')
print >>sys.stderr, msg
def on_skipped(self, host, item=None):
msg = ''
if item:
msg = "skipping: [%s] => (item=%s)" % (host, item)
else:
msg = "skipping: [%s]" % host
print stringc(msg, 'yellow')
def on_no_hosts(self):
print stringc("no hosts matched or remaining\n", 'red')
def on_async_poll(self, host, res, jid, clock):
if jid not in self._async_notified:
self._async_notified[jid] = clock + 1
if self._async_notified[jid] > clock:
self._async_notified[jid] = clock
msg = "<job %s> polling, %ss remaining"%(jid, clock)
print stringc(msg, 'cyan')
def on_async_ok(self, host, res, jid):
msg = "<job %s> finished on %s"%(jid, host)
print stringc(msg, 'cyan')
def on_async_failed(self, host, res, jid):
msg = "<job %s> FAILED on %s"%(jid, host)
print stringc(msg, 'red')
########################################################################
class PlaybookCallbacks(object):
''' playbook.py callbacks used by /usr/bin/ansible-playbook '''
def __init__(self, verbose=False):
self.verbose = verbose
def on_start(self):
pass
def on_notify(self, host, handler):
pass
def on_task_start(self, name, is_conditional):
msg = "TASK: [%s]" % name
if is_conditional:
msg = "NOTIFIED: [%s]" % name
print banner(msg)
def on_vars_prompt(self, varname, private=True, prompt=None):
if prompt:
msg = prompt
else:
msg = 'input for %s: ' % varname
if private:
return getpass.getpass(msg)
return raw_input(msg)
def on_setup(self):
print banner("GATHERING FACTS")
def on_import_for_host(self, host, imported_file):
msg = "%s: importing %s" % (host, imported_file)
print stringc(msg, 'cyan')
def on_not_import_for_host(self, host, missing_file):
msg = "%s: not importing file: %s" % (host, missing_file)
print stringc(msg, 'cyan')
def on_play_start(self, pattern):
print banner("PLAY [%s]" % pattern)