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aegir_6.x-2.x-deb_install.py
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aegir_6.x-2.x-deb_install.py
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#! /usr/bin/env python
from libcloud.types import Provider
from libcloud.providers import get_driver
from libcloud.deployment import MultiStepDeployment, ScriptDeployment, SSHKeyDeployment
from libcloud.ssh import SSHClient, ParamikoSSHClient
from aegir_common import Usage, dependency_check, fab_prepare_firewall
import libcloud.security
import os, sys, string, ConfigParser, socket
import fabric.api as fabric
import time
libcloud.security.VERIFY_SSL_CERT = True
# Fetch some values from the config file
config = ConfigParser.RawConfigParser()
config.read(os.path.expanduser("~/frigg.ini"))
# Try to abstract the provider here, as we may end up supporting others
# Theoretically since we are using libcloud, it should support any
# provider that supports the deploy_node function (Amazon EC2 doesn't)
provider = config.get('Aegir', 'provider')
provider_driver = config.get(provider, 'driver')
# API credentials
user = config.get(provider, 'user')
key = config.get(provider, 'key')
# Preferred image and size
config_distro = config.get(provider, 'distro')
config_size = config.get(provider, 'size')
# These are used as options to Aegir during install
email = config.get('Aegir', 'email')
# Fabric command to install Aegir using apt_get
def fab_preseed_config(domain, email, mysqlpass):
print "===> Installing Aegir"
# Preseed the options for the aegir package.
fabric.run("apt-get install debconf-utils -y", pty=True)
fabric.run("echo 'aegir-hostmaster aegir/db_password password %s' | debconf-set-selections" % (mysqlpass), pty=True)
fabric.run("echo 'aegir-hostmaster aegir/db_password seen true' | debconf-set-selections", pty=True)
fabric.run("echo 'aegir-hostmaster aegir/db_host string localhost' | debconf-set-selections", pty=True)
fabric.run("echo 'aegir-hostmaster aegir/email string %s' | debconf-set-selections" % (email), pty=True)
fabric.run("echo 'aegir-hostmaster aegir/site string %s' | debconf-set-selections" % (domain), pty=True)
def fab_install_debs(debs):
for deb in debs:
print "===> Uploading deb " + deb
fabric.operations.put(deb, '')
fabric.run("DPKG_DEBUG=developer DEBIAN_FRONTEND=noninteractive dpkg -i aegir*.deb", pty=True)
# Install aegir, but ensure that no questions are prompted.
#fabric.run("DPKG_DEBUG=developer DEBIAN_FRONTEND=noninteractive apt-get install aegir -y", pty=True)
# Fabric command to add the aegir user to sudoers
# We need to do this manually, because the package doesn't support our old version of debian.
def fab_prepare_user():
print "===> Preparing the Aegir user"
fabric.run("echo 'aegir ALL=NOPASSWD: /usr/sbin/apache2ctl' >> /etc/sudoers", pty=True)
# Fabric command to set up the hosting queue
def fab_hostmaster_setup():
print "===> Setup hosting queue frequency"
fabric.run("su - -s /bin/sh aegir -c 'drush -y @hostmaster vset hosting_queue_tasks_frequency 1'", pty=True)
fab_run_dispatch()
# Force the dispatcher
def fab_run_dispatch():
fabric.run("su - -s /bin/sh aegir -c 'drush @hostmaster hosting-dispatch'", pty=True)
def run_provision_tests():
print "===> Running Provision tests"
fabric.run("su - -s /bin/sh aegir -c 'drush @hostmaster provision-tests-run -y'", pty=True)
# Remove and purge the aegir debian install
def fab_uninstall_aegir():
fabric.run("apt-get remove --purge aegir aegir-hostmaster aegir-provision drush -y", pty=True)
def main():
assert len(sys.argv) > 0, "No .deb provided on the commandline"
for deb in sys.argv:
assert(os.path.exists(deb)), "provided file doesn't exist: " + deb
# Run some tests
dependency_check()
# Make a new connection
Driver = get_driver( getattr(Provider, provider_driver) )
conn = Driver(user, key)
# Get a list of the available images and sizes
images = conn.list_images()
sizes = conn.list_sizes()
# We'll use the distro and size from the config ini
preferred_image = [image for image in images if config_distro in image.name]
assert len(preferred_image) == 1, "We found more than one image for %s, will be assuming the first one" % config_distro
preferred_size = [size for size in sizes if config_size in size.name]
# The MySQL root password is hardcoded here for now, as it's in our Squeeze LAMP image.
mysqlpass = "8su43x"
# Commands to run immediately after installation
dispatch = [
SSHKeyDeployment(open(os.path.expanduser("~/.ssh/id_rsa.pub")).read()),
]
msd = MultiStepDeployment(dispatch)
# Create and deploy a new server now, and run the deployment steps defined above
print "Provisioning server and running deployment processes"
try:
node = conn.deploy_node(name='aegir' + os.environ['BUILD_ID'], image=preferred_image[0], size=preferred_size[0], deploy=msd)
except:
e = sys.exc_info()[1]
raise SystemError(e)
print "Provisioning complete, you can ssh as root to %s" % node.public_ip[0]
if node.extra.get('password'):
print "The root user's password is %s" % node.extra.get('password')
# Setting some parameters for fabric
domain = socket.getfqdn(node.public_ip[0])
fabric.env.host_string = domain
fabric.env.user = 'root'
try:
fab_prepare_firewall()
fab_prepare_user()
fab_preseed_config(domain, email, mysqlpass)
fab_install_debs(sys.argv)
run_provision_tests()
fab_uninstall_aegir()
except:
print "===> Test failure"
raise
finally:
print "===> Destroying this node"
conn.destroy_node(node)
return 0
if __name__ == "__main__":
main()