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# (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/>.
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
########################################################
import datetime
import os
import platform
import random
import shutil
import socket
import sys
import time
from ansible.errors import AnsibleOptionsError
from ansible.cli import CLI
from ansible.plugins import module_loader
from ansible.utils.cmd_functions import run_cmd
########################################################
class PullCLI(CLI):
''' code behind ansible ad-hoc cli'''
DEFAULT_REPO_TYPE = 'git'
DEFAULT_PLAYBOOK = 'local.yml'
PLAYBOOK_ERRORS = {
1: 'File does not exist',
2: 'File is not readable'
}
SUPPORTED_REPO_MODULES = ['git']
def parse(self):
''' create an options parser for bin/ansible '''
self.parser = CLI.base_parser(
usage='%prog <host-pattern> [options]',
connect_opts=True,
vault_opts=True,
runtask_opts=True,
subset_opts=True,
inventory_opts=True,
module_opts=True,
)
# options unique to pull
self.parser.add_option('--purge', default=False, action='store_true', help='purge checkout after playbook run')
self.parser.add_option('-o', '--only-if-changed', dest='ifchanged', default=False, action='store_true',
help='only run the playbook if the repository has been updated')
self.parser.add_option('-s', '--sleep', dest='sleep', default=None,
help='sleep for random interval (between 0 and n number of seconds) before starting. This is a useful way to disperse git requests')
self.parser.add_option('-f', '--force', dest='force', default=False, action='store_true',
help='run the playbook even if the repository could not be updated')
self.parser.add_option('-d', '--directory', dest='dest', default=None, help='directory to checkout repository to')
self.parser.add_option('-U', '--url', dest='url', default=None, help='URL of the playbook repository')
self.parser.add_option('-C', '--checkout', dest='checkout',
help='branch/tag/commit to checkout. ' 'Defaults to behavior of repository module.')
self.parser.add_option('--accept-host-key', default=False, dest='accept_host_key', action='store_true',
help='adds the hostkey for the repo url if not already added')
self.parser.add_option('-m', '--module-name', dest='module_name', default=self.DEFAULT_REPO_TYPE,
help='Repository module name, which ansible will use to check out the repo. Default is %s.' % self.DEFAULT_REPO_TYPE)
self.parser.add_option('--verify-commit', dest='verify', default=False, action='store_true',
help='verify GPG signature of checked out commit, if it fails abort running the playbook.'
' This needs the corresponding VCS module to support such an operation')
self.options, self.args = self.parser.parse_args()
if self.options.sleep:
try:
secs = random.randint(0,int(self.options.sleep))
self.options.sleep = secs
except ValueError:
raise AnsibleOptionsError("%s is not a number." % self.options.sleep)
if not self.options.url:
raise AnsibleOptionsError("URL for repository not specified, use -h for help")
if len(self.args) != 1:
raise AnsibleOptionsError("Missing target hosts")
if self.options.module_name not in self.SUPPORTED_REPO_MODULES:
raise AnsibleOptionsError("Unsuported repo module %s, choices are %s" % (self.options.module_name, ','.join(self.SUPPORTED_REPO_MODULES)))
self.display.verbosity = self.options.verbosity
self.validate_conflicts(vault_opts=True)
def run(self):
''' use Runner lib to do SSH things '''
super(PullCLI, self).run()
# log command line
now = datetime.datetime.now()
self.display.display(now.strftime("Starting Ansible Pull at %F %T"))
self.display.display(' '.join(sys.argv))
# Build Checkout command
# Now construct the ansible command
node = platform.node()
host = socket.getfqdn()
limit_opts = 'localhost:%s:127.0.0.1' % ':'.join(set([host, node, host.split('.')[0], node.split('.')[0]]))
base_opts = '-c local "%s"' % limit_opts
if self.options.verbosity > 0:
base_opts += ' -%s' % ''.join([ "v" for x in range(0, self.options.verbosity) ])
# Attempt to use the inventory passed in as an argument
# It might not yet have been downloaded so use localhost if note
if not self.options.inventory or not os.path.exists(self.options.inventory):
inv_opts = 'localhost,'
else:
inv_opts = self.options.inventory
#TODO: enable more repo modules hg/svn?
if self.options.module_name == 'git':
repo_opts = "name=%s dest=%s" % (self.options.url, self.options.dest)
if self.options.checkout:
repo_opts += ' version=%s' % self.options.checkout
if self.options.accept_host_key:
repo_opts += ' accept_hostkey=yes'
if self.options.private_key_file:
repo_opts += ' key_file=%s' % self.options.private_key_file
if self.options.verify:
repo_opts += ' verify_commit=yes'
path = module_loader.find_plugin(self.options.module_name)
if path is None:
raise AnsibleOptionsError(("module '%s' not found.\n" % self.options.module_name))
bin_path = os.path.dirname(os.path.abspath(sys.argv[0]))
cmd = '%s/ansible -i "%s" %s -m %s -a "%s"' % (
bin_path, inv_opts, base_opts, self.options.module_name, repo_opts
)
for ev in self.options.extra_vars:
cmd += ' -e "%s"' % ev
# Nap?
if self.options.sleep:
self.display.display("Sleeping for %d seconds..." % self.options.sleep)
time.sleep(self.options.sleep);
# RUN the Checkout command
rc, out, err = run_cmd(cmd, live=True)
if rc != 0:
if self.options.force:
self.display.warning("Unable to update repository. Continuing with (forced) run of playbook.")
else:
return rc
elif self.options.ifchanged and '"changed": true' not in out:
self.display.display("Repository has not changed, quitting.")
return 0
playbook = self.select_playbook(path)
if playbook is None:
raise AnsibleOptionsError("Could not find a playbook to run.")
# Build playbook command
cmd = '%s/ansible-playbook %s %s' % (bin_path, base_opts, playbook)
if self.options.vault_password_file:
cmd += " --vault-password-file=%s" % self.options.vault_password_file
if self.options.inventory:
cmd += ' -i "%s"' % self.options.inventory
for ev in self.options.extra_vars:
cmd += ' -e "%s"' % ev
if self.options.ask_sudo_pass:
cmd += ' -K'
if self.options.tags:
cmd += ' -t "%s"' % self.options.tags
if self.options.limit:
cmd += ' -l "%s"' % self.options.limit
os.chdir(self.options.dest)
# RUN THE PLAYBOOK COMMAND
rc, out, err = run_cmd(cmd, live=True)
if self.options.purge:
os.chdir('/')
try:
shutil.rmtree(self.options.dest)
except Exception as e:
self.display.error("Failed to remove %s: %s" % (self.options.dest, str(e)))
return rc
def try_playbook(self, path):
if not os.path.exists(path):
return 1
if not os.access(path, os.R_OK):
return 2
return 0
def select_playbook(self, path):
playbook = None
if len(self.args) > 0 and self.args[0] is not None:
playbook = os.path.join(path, self.args[0])
rc = self.try_playbook(playbook)
if rc != 0:
self.display.warning("%s: %s" % (playbook, self.PLAYBOOK_ERRORS[rc]))
return None
return playbook
else:
fqdn = socket.getfqdn()
hostpb = os.path.join(path, fqdn + '.yml')
shorthostpb = os.path.join(path, fqdn.split('.')[0] + '.yml')
localpb = os.path.join(path, self.DEFAULT_PLAYBOOK)
errors = []
for pb in [hostpb, shorthostpb, localpb]:
rc = self.try_playbook(pb)
if rc == 0:
playbook = pb
break
else:
errors.append("%s: %s" % (pb, self.PLAYBOOK_ERRORS[rc]))
if playbook is None:
self.display.warning("\n".join(errors))
return playbook
|
