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# Copyright (c) 2006,2007,2008 Mitch Garnaat http://garnaat.org/
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish, dis-
# tribute, sublicense, and/or sell copies of the Software, and to permit
# persons to whom the Software is furnished to do so, subject to the fol-
# lowing conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
#
import boto.pyami.installers
import os
import os.path
import stat
import boto
import random
from pwd import getpwnam
class Installer(boto.pyami.installers.Installer):
"""
Base Installer class for Ubuntu-based AMI's
"""
def add_cron(self, name, command, minute="*", hour="*", mday="*", month="*", wday="*", who="root", env=None):
"""
Write a file to /etc/cron.d to schedule a command
env is a dict containing environment variables you want to set in the file
name will be used as the name of the file
"""
if minute == 'random':
minute = str(random.randrange(60))
if hour == 'random':
hour = str(random.randrange(24))
fp = open('/etc/cron.d/%s' % name, "w")
if env:
for key, value in env.items():
fp.write('%s=%s\n' % (key, value))
fp.write('%s %s %s %s %s %s %s\n' % (minute, hour, mday, month, wday, who, command))
fp.close()
def add_init_script(self, file, name):
"""
Add this file to the init.d directory
"""
f_path = os.path.join("/etc/init.d", name)
f = open(f_path, "w")
f.write(file)
f.close()
os.chmod(f_path, stat.S_IREAD | stat.S_IWRITE | stat.S_IEXEC)
self.run("/usr/sbin/update-rc.d %s defaults" % name)
def add_env(self, key, value):
"""
Add an environemnt variable
For Ubuntu, the best place is /etc/environment. Values placed here do
not need to be exported.
"""
boto.log.info('Adding env variable: %s=%s' % (key, value))
if not os.path.exists("/etc/environment.orig"):
self.run('cp /etc/environment /etc/environment.orig', notify=False, exit_on_error=False)
fp = open('/etc/environment', 'a')
fp.write('\n%s="%s"' % (key, value))
fp.close()
os.environ[key] = value
def stop(self, service_name):
self.run('/etc/init.d/%s stop' % service_name)
def start(self, service_name):
self.run('/etc/init.d/%s start' % service_name)
def create_user(self, user):
"""
Create a user on the local system
"""
self.run("useradd -m %s" % user)
usr = getpwnam(user)
return usr
def install(self):
"""
This is the only method you need to override
"""
raise NotImplementedError
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