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740 lines
27 KiB
Python
740 lines
27 KiB
Python
#!/usr/bin/env python
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########################################################################
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#
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# (C) 2013, James Cammarata <jcammarata@ansibleworks.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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#
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########################################################################
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import datetime
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import json
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import os
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import os.path
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import shutil
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import sys
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import tarfile
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import tempfile
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import urllib2
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import yaml
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from collections import defaultdict
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from distutils.version import LooseVersion
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from jinja2 import Environment
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from optparse import OptionParser
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import ansible.constants as C
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default_meta_template = """---
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galaxy_info:
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author: {{ author }}
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description: {{description}}
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company: {{ company }}
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license: {{ license }}
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min_ansible_version: {{ min_ansible_version }}
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#
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# Below are all platforms currently available. Just uncomment
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# the ones that apply to your role. If you don't see your
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# platform on this list, let us know and we'll get it added!
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#
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#platforms:
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{%- for platform,versions in platforms.iteritems() %}
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#- name: {{ platform }}
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# versions:
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# - all
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{%- for version in versions %}
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# - {{ version }}
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{%- endfor %}
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{%- endfor %}
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#
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# Below are all categories currently available. Just as with
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# the platforms above, uncomment those that apply to your role.
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#
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#categories:
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{%- for category in categories %}
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#- {{ category.name }}
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{%- endfor %}
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dependencies: []
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# List your role dependencies here, one per line. Only
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# dependencies available via galaxy should be listed here.
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# Be sure to remove the '[]' above if you add dependencies
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# to this list.
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{% for dependency in dependencies %}
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#- {{ dependency }}
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{% endfor %}
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"""
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#-------------------------------------------------------------------------------------
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# Utility functions for parsing actions/options
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#-------------------------------------------------------------------------------------
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VALID_ACTIONS = ("init", "info", "install", "list", "remove")
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def get_action(args):
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"""
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Get the action the user wants to execute from the
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sys argv list.
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"""
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for i in range(0,len(args)):
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arg = args[i]
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if arg in VALID_ACTIONS:
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del args[i]
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return arg
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return None
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def build_option_parser(action):
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"""
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Builds an option parser object based on the action
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the user wants to execute.
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"""
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parser = OptionParser()
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parser.set_usage("usage: %%prog [%s] [options] ..." % "|".join(VALID_ACTIONS))
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if not action:
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parser.print_help()
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sys.exit()
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# options for all actions
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# - none yet
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# options specific to actions
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if action == "info":
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parser.set_usage("usage: %prog info [options] role_name[,version]")
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elif action == "init":
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parser.set_usage("usage: %prog init [options] role_name")
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parser.add_option(
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'-p', '--init-path', dest='init_path', default="./",
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help='The path in which the skeleton role will be created.'
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'The default is the current working directory.')
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elif action == "install":
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parser.set_usage("usage: %prog install [options] [-f FILE | role_name(s)[,version] | tar_file(s)]")
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parser.add_option(
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'-i', '--ignore-errors', dest='ignore_errors', action='store_true', default=False,
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help='Ignore errors and continue with the next specified role.')
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parser.add_option(
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'-n', '--no-deps', dest='no_deps', action='store_true', default=False,
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help='Don\'t download roles listed as dependencies')
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parser.add_option(
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'-r', '--role-file', dest='role_file',
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help='A file containing a list of roles to be imported')
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elif action == "remove":
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parser.set_usage("usage: %prog remove role1 role2 ...")
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elif action == "list":
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parser.set_usage("usage: %prog list [role_name]")
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# options that apply to more than one action
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if action != "init":
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parser.add_option(
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'-p', '--roles-path', dest='roles_path', default=C.DEFAULT_ROLES_PATH,
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help='The path to the directory containing your roles.'
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'The default is the roles_path configured in your '
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'ansible.cfg file (/etc/ansible/roles if not configured)')
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if action in ("info","init","install"):
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parser.add_option(
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'-s', '--server', dest='api_server', default="galaxy.ansibleworks.com",
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help='The API server destination')
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if action in ("init","install"):
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parser.add_option(
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'-f', '--force', dest='force', action='store_true', default=False,
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help='Force overwriting an existing role')
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# done, return the parser
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return parser
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def get_opt(options, k, defval=""):
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"""
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Returns an option from an Optparse values instance.
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"""
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try:
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data = getattr(options, k)
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except:
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return defval
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return data
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def exit_without_ignore(options, rc=1):
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"""
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Exits with the specified return code unless the
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option --ignore-errors was specified
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"""
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if not get_opt(options, "ignore_errors", False):
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print 'You can use --ignore-errors to skip failed roles.'
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sys.exit(rc)
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#-------------------------------------------------------------------------------------
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# Galaxy API functions
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#-------------------------------------------------------------------------------------
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def api_get_config(api_server):
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"""
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Fetches the Galaxy API current version to ensure
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the API server is up and reachable.
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"""
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try:
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url = 'https://%s/api/' % api_server
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data = json.load(urllib2.urlopen(url))
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if not data.get("current_version",None):
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return None
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else:
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return data
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except:
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return None
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def api_lookup_role_by_name(api_server, role_name):
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"""
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Uses the Galaxy API to do a lookup on the role owner/name.
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"""
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try:
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user_name,role_name = role_name.split(".", 1)
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except:
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print "Invalid role name (%s). You must specify username.rolename" % role_name
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sys.exit(1)
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url = 'https://%s/api/v1/roles/?owner__username=%s&name=%s' % (api_server,user_name,role_name)
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try:
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data = json.load(urllib2.urlopen(url))
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if len(data["results"]) == 0:
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return None
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else:
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return data["results"][0]
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except:
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return None
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def api_fetch_role_related(api_server, related, role_id):
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"""
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Uses the Galaxy API to fetch the list of related items for
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the given role. The url comes from the 'related' field of
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the role.
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"""
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try:
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url = 'https://%s/api/v1/roles/%d/%s/?page_size=50' % (api_server, int(role_id), related)
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data = json.load(urllib2.urlopen(url))
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results = data['results']
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done = (data.get('next', None) == None)
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while not done:
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url = 'https://%s%s' % (api_server, data['next'])
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print url
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data = json.load(urllib2.urlopen(url))
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results += data['results']
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done = (data.get('next', None) == None)
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return results
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except:
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return None
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def api_get_list(api_server, what):
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"""
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Uses the Galaxy API to fetch the list of items specified.
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"""
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try:
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url = 'https://%s/api/v1/%s/?page_size' % (api_server, what)
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data = json.load(urllib2.urlopen(url))
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if "results" in data:
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results = data['results']
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else:
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results = data
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done = True
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if "next" in data:
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done = (data.get('next', None) == None)
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while not done:
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url = 'https://%s%s' % (api_server, data['next'])
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print url
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data = json.load(urllib2.urlopen(url))
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results += data['results']
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done = (data.get('next', None) == None)
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return results
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except:
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print " - failed to download the %s list" % what
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return None
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#-------------------------------------------------------------------------------------
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# Role utility functions
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#-------------------------------------------------------------------------------------
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def get_role_path(role_name, options):
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"""
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Returns the role path based on the roles_path option
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and the role name.
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"""
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roles_path = get_opt(options,'roles_path')
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roles_path = os.path.join(roles_path, role_name)
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roles_path = os.path.expanduser(roles_path)
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return roles_path
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def get_role_metadata(role_name, options):
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"""
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Returns the metadata as YAML, if the file 'meta/main.yml'
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exists in the specified role_path
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"""
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role_path = os.path.join(get_role_path(role_name, options), 'meta/main.yml')
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try:
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if os.path.isfile(role_path):
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f = open(role_path, 'r')
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meta_data = yaml.safe_load(f)
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f.close()
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return meta_data
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else:
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return None
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except:
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return None
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def get_galaxy_install_info(role_name, options):
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"""
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Returns the YAML data contained in 'meta/.galaxy_install_info',
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if it exists.
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"""
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try:
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info_path = os.path.join(get_role_path(role_name, options), 'meta/.galaxy_install_info')
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if os.path.isfile(info_path):
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f = open(info_path, 'r')
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info_data = yaml.safe_load(f)
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f.close()
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return info_data
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else:
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return None
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except:
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return None
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def write_galaxy_install_info(role_name, role_version, options):
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"""
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Writes a YAML-formatted file to the role's meta/ directory
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(named .galaxy_install_info) which contains some information
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we can use later for commands like 'list' and 'info'.
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"""
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info = dict(
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version = role_version,
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install_date = datetime.datetime.utcnow().strftime("%c"),
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)
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try:
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info_path = os.path.join(get_role_path(role_name, options), 'meta/.galaxy_install_info')
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f = open(info_path, 'w+')
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info_data = yaml.safe_dump(info, f)
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f.close()
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except:
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return False
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return True
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def remove_role(role_name, options):
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"""
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Removes the specified role from the roles path. There is a
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sanity check to make sure there's a meta/main.yml file at this
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path so the user doesn't blow away random directories
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"""
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if get_role_metadata(role_name, options):
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role_path = get_role_path(role_name, options)
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shutil.rmtree(role_path)
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return True
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else:
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return False
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def fetch_role(role_name, target, role_data, options):
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"""
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Downloads the archived role from github to a temp location, extracts
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it, and then copies the extracted role to the role library path.
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"""
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# first grab the file and save it to a temp location
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archive_url = 'https://github.com/%s/%s/archive/%s.tar.gz' % (role_data["github_user"], role_data["github_repo"], target)
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print " - downloading role from %s" % archive_url
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try:
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url_file = urllib2.urlopen(archive_url)
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temp_file = tempfile.NamedTemporaryFile(delete=False)
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data = url_file.read()
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while data:
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temp_file.write(data)
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data = url_file.read()
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temp_file.close()
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return temp_file.name
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except Exception, e:
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# TODO: better urllib2 error handling for error
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# messages that are more exact
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print "Error: failed to download the file."
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return False
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def install_role(role_name, role_version, role_filename, options):
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# the file is a tar, so open it that way and extract it
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# to the specified (or default) roles directory
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if not tarfile.is_tarfile(role_filename):
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print "Error: the file downloaded was not a tar.gz"
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return False
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else:
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role_tar_file = tarfile.open(role_filename, "r:gz")
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# verify the role's meta file
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meta_file = None
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members = role_tar_file.getmembers()
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for member in members:
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if "/meta/main.yml" in member.name:
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meta_file = member
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break
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if not meta_file:
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print "Error: this role does not appear to have a meta/main.yml file."
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return False
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else:
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try:
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meta_file_data = yaml.safe_load(role_tar_file.extractfile(meta_file))
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except:
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print "Error: this role does not appear to have a valid meta/main.yml file."
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return False
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# we strip off the top-level directory for all of the files contained within
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# the tar file here, since the default is 'github_repo-target', and change it
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# to the specified role's name
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role_path = os.path.join(get_opt(options, 'roles_path', '/etc/ansible/roles'), role_name)
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role_path = os.path.expanduser(role_path)
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print " - extracting %s to %s" % (role_name, role_path)
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try:
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if os.path.exists(role_path):
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if not os.path.isdir(role_path):
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print "Error: the specified roles path exists and is not a directory."
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return False
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elif not get_opt(options, "force", False):
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print "Error: the specified role %s appears to already exist. Use --force to replace it." % role_name
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return False
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else:
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# using --force, remove the old path
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if not remove_role(role_name, options):
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print "Error: %s doesn't appear to contain a role." % role_path
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print "Please remove this directory manually if you really want to put the role here."
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return False
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else:
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os.makedirs(role_path)
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# now we do the actual extraction to the role_path
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for member in members:
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# we only extract files
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if member.isreg():
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member.name = "/".join(member.name.split("/")[1:])
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role_tar_file.extract(member, role_path)
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# write out the install info file for later use
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write_galaxy_install_info(role_name, role_version, options)
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except OSError, e:
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print "Error: you do not have permission to modify files in %s" % role_path
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return False
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# return the parsed yaml metadata
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print "%s was installed successfully" % role_name
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return meta_file_data
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#-------------------------------------------------------------------------------------
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# Action functions
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#-------------------------------------------------------------------------------------
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def execute_init(args, options):
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"""
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Executes the init action, which creates the skeleton framework
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of a role that complies with the galaxy metadata format.
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"""
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init_path = get_opt(options, 'init_path', './')
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api_server = get_opt(options, "api_server", "galaxy.ansibleworks.com")
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force = get_opt(options, 'force', False)
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api_config = api_get_config(api_server)
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if not api_config:
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print "The API server (%s) is not responding, please try again later." % api_server
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sys.exit(1)
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try:
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role_name = args.pop(0).strip()
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if role_name == "":
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raise Exception("")
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role_path = os.path.join(init_path, role_name)
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if os.path.exists(role_path):
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if os.path.isfile(role_path):
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print "The path %s already exists, but is a file - aborting" % role_path
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sys.exit(1)
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elif not force:
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print "The directory %s already exists."
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print ""
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print "You can use --force to re-initialize this directory,\n" + \
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"however it will reset any main.yml files that may have\n" + \
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"been modified there already."
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sys.exit(1)
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except Exception, e:
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print "No role name specified for init"
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sys.exit(1)
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ROLE_DIRS = ('defaults','files','handlers','meta','tasks','templates','vars')
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for dir in ROLE_DIRS:
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dir_path = os.path.join(init_path, role_name, dir)
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main_yml_path = os.path.join(dir_path, 'main.yml')
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# create the directory if it doesn't exist already
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if not os.path.exists(dir_path):
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os.makedirs(dir_path)
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# now create the main.yml file for that directory
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if dir == "meta":
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# create a skeleton meta/main.yml with a valid galaxy_info
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# datastructure in place, plus with all of the available
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# tags/platforms included (but commented out) and the
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# dependencies section
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platforms = api_get_list(api_server, "platforms")
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if not platforms:
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platforms = []
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categories = api_get_list(api_server, "categories")
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if not categories:
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categories = []
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# group the list of platforms from the api based
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# on their names, with the release field being
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# appended to a list of versions
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platform_groups = defaultdict(list)
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for platform in platforms:
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platform_groups[platform['name']].append(platform['release'])
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platform_groups[platform['name']].sort()
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inject = dict(
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author = 'your name',
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company = 'your company (optional)',
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license = 'license (GPLv2, CC-BY, etc)',
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min_ansible_version = '1.2',
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platforms = platform_groups,
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categories = categories,
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)
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|
rendered_meta = Environment().from_string(default_meta_template).render(inject)
|
|
f = open(main_yml_path, 'w')
|
|
f.write(rendered_meta)
|
|
f.close()
|
|
pass
|
|
else:
|
|
# just write a (mostly) empty YAML file for main.yml
|
|
f = open(main_yml_path, 'w')
|
|
f.write('---\n# %s file for %s\n' % (dir,role_name))
|
|
f.close()
|
|
print "%s was created successfully" % role_name
|
|
|
|
def execute_info(args, options):
|
|
"""
|
|
Executes the info action. This action prints out detailed
|
|
information about an installed role as well as info available
|
|
from the galaxy API.
|
|
"""
|
|
|
|
pass
|
|
|
|
def execute_install(args, options):
|
|
"""
|
|
Executes the installation action. The args list contains the
|
|
roles to be installed, unless -f was specified. The list of roles
|
|
can be a name (which will be downloaded via the galaxy API and github),
|
|
or it can be a local .tar.gz file.
|
|
"""
|
|
|
|
role_file = get_opt(options, "role_file", None)
|
|
api_server = get_opt(options, "api_server", "galaxy.ansibleworks.com")
|
|
no_deps = get_opt(options, "no_deps", False)
|
|
|
|
if len(args) == 0 and not role_file:
|
|
# the user needs to specify one of either --role-file
|
|
# or specify a single user/role name
|
|
print "You must specify a user/role name or a roles file"
|
|
sys.exit()
|
|
elif len(args) == 1 and role_file:
|
|
# using a role file is mutually exclusive of specifying
|
|
# the role name on the command line
|
|
print "Please specify a user/role name, or a roles file, but not both"
|
|
sys.exit(1)
|
|
|
|
api_config = api_get_config(api_server)
|
|
if not api_config:
|
|
print "The API server (%s) is not responding, please try again later." % api_server
|
|
sys.exit(1)
|
|
|
|
roles_done = []
|
|
if role_file:
|
|
# roles listed in a file, one per line
|
|
# so we'll go through and grab them all
|
|
f = open(role_file, 'r')
|
|
roles_left = f.readlines()
|
|
f.close()
|
|
else:
|
|
# roles were specified directly, so we'll just go out grab them
|
|
# (and their dependencies, unless the user doesn't want us to).
|
|
roles_left = args
|
|
|
|
while len(roles_left) > 0:
|
|
# query the galaxy API for the role data
|
|
role_name = roles_left.pop(0).strip()
|
|
role_version = None
|
|
|
|
if role_name == "" or role_name.startswith("#"):
|
|
continue
|
|
elif role_name.find(',') != -1:
|
|
role_name,role_version = role_name.split(',',1)
|
|
role_name = role_name.strip()
|
|
role_version = role_version.strip()
|
|
|
|
if os.path.isfile(role_name):
|
|
# installing a local tar.gz
|
|
tar_file = role_name
|
|
role_name = os.path.basename(role_name).replace('.tar.gz','')
|
|
if tarfile.is_tarfile(tar_file):
|
|
print " - installing %s as %s" % (tar_file, role_name)
|
|
if not install_role(role_name, role_version, tar_file, options):
|
|
exit_without_ignore(options)
|
|
else:
|
|
print "%s (%s) was NOT installed successfully." % (role_name,tar_file)
|
|
exit_without_ignore(options)
|
|
else:
|
|
# installing remotely
|
|
role_data = api_lookup_role_by_name(api_server, role_name)
|
|
if not role_data:
|
|
print "Sorry, %s was not found on %s." % (role_name, api_server)
|
|
continue
|
|
|
|
role_versions = api_fetch_role_related(api_server, 'versions', role_data['id'])
|
|
if not role_version:
|
|
# convert the version names to LooseVersion objects
|
|
# and sort them to get the latest version. If there
|
|
# are no versions in the list, we'll grab the head
|
|
# of the master branch
|
|
if len(role_versions) > 0:
|
|
loose_versions = [LooseVersion(a.get('name',None)) for a in role_versions]
|
|
loose_versions.sort()
|
|
role_version = str(loose_versions[-1])
|
|
else:
|
|
role_version = 'master'
|
|
print " no version specified, installing %s" % role_version
|
|
else:
|
|
if role_versions and role_version not in [a.get('name',None) for a in role_versions]:
|
|
print "The specified version (%s) was not found in the list of available versions." % role_version
|
|
exit_without_ignore(options)
|
|
continue
|
|
|
|
# download the role. if --no-deps was specified, we stop here,
|
|
# otherwise we recursively grab roles and all of their deps.
|
|
tmp_file = fetch_role(role_name, role_version, role_data, options)
|
|
if tmp_file and install_role(role_name, role_version, tmp_file, options):
|
|
# we're done with the temp file, clean it up
|
|
os.unlink(tmp_file)
|
|
# install dependencies, if we want them
|
|
if not no_deps:
|
|
role_dependencies = role_data['summary_fields']['dependencies'] # api_fetch_role_related(api_server, 'dependencies', role_data['id'])
|
|
for dep_name in role_dependencies:
|
|
#dep_name = "%s.%s" % (dep['owner'], dep['name'])
|
|
if not get_role_metadata(dep_name, options):
|
|
print ' adding dependency: %s' % dep_name
|
|
roles_left.append(dep_name)
|
|
else:
|
|
print ' dependency %s is already installed, skipping.' % dep_name
|
|
else:
|
|
if tmp_file:
|
|
os.unlink(tmp_file)
|
|
print "%s was NOT installed successfully." % role_name
|
|
exit_without_ignore(options)
|
|
sys.exit(0)
|
|
|
|
def execute_remove(args, options):
|
|
"""
|
|
Executes the remove action. The args list contains the list
|
|
of roles to be removed. This list can contain more than one role.
|
|
"""
|
|
|
|
if len(args) == 0:
|
|
print 'You must specify at least one role to remove.'
|
|
sys.exit()
|
|
|
|
for role in args:
|
|
if get_role_metadata(role, options):
|
|
if remove_role(role, options):
|
|
print 'successfully removed %s' % role
|
|
else:
|
|
print "failed to remove role: %s" % role
|
|
else:
|
|
print '%s is not installed, skipping.' % role
|
|
sys.exit(0)
|
|
|
|
def execute_list(args, options):
|
|
"""
|
|
Executes the list action. The args list can contain zero
|
|
or one role. If one is specified, only that role will be
|
|
shown, otherwise all roles in the specified directory will
|
|
be shown.
|
|
"""
|
|
|
|
if len(args) > 1:
|
|
print "Please specify only one role to list, or specify no roles to see a full list"
|
|
sys.exit(1)
|
|
|
|
if len(args) == 1:
|
|
# show only the request role, if it exists
|
|
role_name = args[0]
|
|
metadata = get_role_metadata(role_name, options)
|
|
if metadata:
|
|
install_info = get_galaxy_install_info(role_name, options)
|
|
version = None
|
|
if install_info:
|
|
version = install_info.get("version", None)
|
|
if not version:
|
|
version = "(unknown version)"
|
|
# show some more info about single roles here
|
|
print " %s, %s" % (role_name, version)
|
|
else:
|
|
print "The role %s was not found" % role_name
|
|
else:
|
|
# show all valid roles in the roles_path directory
|
|
roles_path = get_opt(options, 'roles_path')
|
|
roles_path = os.path.expanduser(roles_path)
|
|
if not os.path.exists(roles_path):
|
|
print "The path %s does not exist. Please specify a valid path with --roles-path" % roles_path
|
|
sys.exit(1)
|
|
elif not os.path.isdir(roles_path):
|
|
print "%s exists, but it is not a directory. Please specify a valid path with --roles-path" % roles_path
|
|
sys.exit(1)
|
|
path_files = os.listdir(roles_path)
|
|
for path_file in path_files:
|
|
if get_role_metadata(path_file, options):
|
|
install_info = get_galaxy_install_info(path_file, options)
|
|
version = None
|
|
if install_info:
|
|
version = install_info.get("version", None)
|
|
if not version:
|
|
version = "(unknown version)"
|
|
print " %s, %s" % (path_file, version)
|
|
sys.exit(0)
|
|
|
|
#-------------------------------------------------------------------------------------
|
|
# The main entry point
|
|
#-------------------------------------------------------------------------------------
|
|
|
|
def main():
|
|
# parse the CLI options
|
|
action = get_action(sys.argv)
|
|
parser = build_option_parser(action)
|
|
(options, args) = parser.parse_args()
|
|
|
|
# execute the desired action
|
|
if 1: #try:
|
|
fn = globals()["execute_%s" % action]
|
|
fn(args, options)
|
|
#except KeyError, e:
|
|
# print "Error: %s is not a valid action. Valid actions are: %s" % (action, ", ".join(VALID_ACTIONS))
|
|
# sys.exit(1)
|
|
|
|
if __name__ == "__main__":
|
|
main()
|