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feab57e270
- added terse syntax to modules.rst - added description of special variables to template module
218 lines
7 KiB
Python
Executable file
218 lines
7 KiB
Python
Executable file
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2012, Mark Theunissen <mark.theunissen@gmail.com>
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# Sponsored by Four Kitchens http://fourkitchens.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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DOCUMENTATION = '''
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---
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module: mysql_db
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short_description: Add or remove MySQL databases from a remote host.
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description:
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- Add or remove MySQL databases from a remote host.
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version_added: "0.6"
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options:
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name:
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description:
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- name of the database to add or remove
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required: true
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default: null
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login_user:
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description:
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- The username used to authenticate with
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required: false
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default: null
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login_password:
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description:
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- The password used to authenticate with
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required: false
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default: null
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login_host:
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description:
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- Host running the database
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required: false
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default: localhost
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state:
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description:
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- The database state
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required: false
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default: present
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choices: [ "present", "absent", "dump", "import" ]
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collation:
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description:
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- Collation mode
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required: false
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default: null
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encoding:
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description:
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- Encoding mode
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required: false
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default: null
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target:
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description:
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- Where to dump/get the .sql file
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required: true
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examples:
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- code: "mysql_db: db=bobdata state=present"
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description: Create a new database with name 'bobdata'
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notes:
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- Requires the MySQLdb Python package on the remote host. For Ubuntu, this
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is as easy as apt-get install python-mysqldb.
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- Both C(login_password) and C(login_username) are required when you are
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passing credentials. If none are present, the module will attempt to read
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the credentials from C(~/.my.cnf), and finally fall back to using the MySQL
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default login of 'root' with no password.
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requirements: [ ConfigParser ]
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author: Mark Theunissen
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'''
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import ConfigParser
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import os
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try:
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import MySQLdb
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except ImportError:
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mysqldb_found = False
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else:
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mysqldb_found = True
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# ===========================================
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# MySQL module specific support methods.
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#
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def db_exists(cursor, db):
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res = cursor.execute("SHOW DATABASES LIKE %s", (db,))
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return bool(res)
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def db_delete(cursor, db):
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query = "DROP DATABASE %s" % db
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cursor.execute(query)
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return True
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def db_dump(user, password, db_name, target):
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res = os.system("/usr/bin/mysqldump -q -u "+user+ " -p"+password+" "
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+db_name+" > "
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+target)
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return (res == 0)
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def db_import(user, password, db_name, target):
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res = os.system("/usr/bin/mysql -u "+user+ " -p"+password+" "
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+db_name+" < "
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+target)
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return (res == 0)
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def db_create(cursor, db, encoding, collation):
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if encoding:
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encoding = " CHARACTER SET %s" % encoding
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if collation:
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collation = " COLLATE %s" % collation
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query = "CREATE DATABASE %s%s%s" % (db, encoding, collation)
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res = cursor.execute(query)
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return True
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def load_mycnf():
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config = ConfigParser.RawConfigParser()
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mycnf = os.path.expanduser('~/.my.cnf')
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if not os.path.exists(mycnf):
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return False
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try:
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config.readfp(open(mycnf))
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creds = dict(user=config.get('client', 'user'),passwd=config.get('client', 'pass'))
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except (ConfigParser.NoOptionError, IOError):
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return False
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return creds
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# ===========================================
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# Module execution.
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#
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def main():
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module = AnsibleModule(
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argument_spec = dict(
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login_user=dict(default=None),
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login_password=dict(default=None),
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login_host=dict(default="localhost"),
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login_unix_socket=dict(default=None),
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db=dict(required=True, aliases=['name']),
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encoding=dict(default=""),
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collation=dict(default=""),
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target=dict(default=None),
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state=dict(default="present", choices=["absent", "present","dump", "import"]),
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)
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)
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if not mysqldb_found:
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module.fail_json(msg="the python mysqldb module is required")
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db = module.params["db"]
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encoding = module.params["encoding"]
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collation = module.params["collation"]
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state = module.params["state"]
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target = module.params["target"]
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# Either the caller passes both a username and password with which to connect to
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# mysql, or they pass neither and allow this module to read the credentials from
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# ~/.my.cnf.
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login_password = module.params["login_password"]
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login_user = module.params["login_user"]
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if login_user is None and login_password is None:
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mycnf_creds = load_mycnf()
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if mycnf_creds is False:
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login_user = "root"
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login_password = ""
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else:
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login_user = mycnf_creds["user"]
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login_password = mycnf_creds["passwd"]
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elif login_password is None or login_user is None:
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module.fail_json(msg="when supplying login arguments, both login_user and login_password must be provided")
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if state in ['dump','import']:
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if target is None:
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module.fail_json(msg="with state={0} target is required".format(state))
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connect_to_db = db
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else:
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connect_to_db = 'mysql'
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try:
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if module.params["login_unix_socket"] != None:
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db_connection = MySQLdb.connect(host=module.params["login_host"], unix_socket=module.params["login_unix_socket"], user=login_user, passwd=login_password, db=connect_to_db)
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else:
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db_connection = MySQLdb.connect(host=module.params["login_host"], user=login_user, passwd=login_password, db=connect_to_db)
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cursor = db_connection.cursor()
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except Exception as e:
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module.fail_json(msg="unable to connect, check login_user and login_password are correct, or alternatively check ~/.my.cnf contains credentials")
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changed = False
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if db_exists(cursor, db):
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if state == "absent":
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changed = db_delete(cursor, db)
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elif state == "dump":
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changed = db_dump(login_user, login_password, db, target)
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if not changed:
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module.fail_json(msg="dump failed!")
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elif state == "import":
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changed = db_import(login_user, login_password, db, target)
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if not changed:
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module.fail_json(msg="import failed!")
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else:
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if state == "present":
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changed = db_create(cursor, db, encoding, collation)
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module.exit_json(changed=changed, db=db)
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# this is magic, see lib/ansible/module_common.py
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#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
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main()
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