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#!/usr/bin/env python
"""Create a host package for bootstrapping a puppet client."""
import os
import glob
import time
import shutil
import OpenSSL
import tarfile
import commands
import optparse
import tempfile
ssldir = '/etc/puppet/ssl'
defaults = {
'destssldir': ssldir,
'domain': '',
'force': False,
'force_cert': False,
'force_tarball': False,
'force_package': False,
'release': '1',
'rpmdir': os.environ['HOME'],
'ssldir': ssldir,
'template': '%s/template.spec' % ssldir,
}
status, domain = commands.getstatusoutput('dnsdomainname')
if status == 0:
defaults['domain'] = domain
package_types = ['deb', 'rpm']
class PuppetHostError(StandardError):
pass
class PuppetHost(object):
def __init__(self, hostname = '', opts = defaults):
"""Puppet client class"""
if not hostname:
raise PuppetHostError('A hostname must be provided')
if '.' not in hostname and domain:
hostname = '.'.join([hostname, domain])
hostname = hostname.lower()
self.hostname = hostname
self.opts = opts
self.debfile = ''
self.rpmfile = ''
self.tarfile = ''
self._version = ''
def gencert(self):
"""Generate a puppet certificate"""
cert = self.files['cert']
ssldir = self.opts['ssldir']
if os.path.exists(cert) and not self.opts['force_cert']:
raise PuppetHostError('%s exists, not overwriting' % cert)
cmd = 'puppetca --generate --ssldir %s %s' % (ssldir, self.hostname)
status, output = commands.getstatusoutput(cmd)
if status:
raise PuppetHostError('Error generating cert for %s: %s' %
(self.hostname, output))
def package(self, types = ['rpm']):
"""Create packages in requested formats"""
for type in types:
if type not in package_types or not hasattr(self, type):
raise PuppetHostError('Bogus package type: %s' % type)
try: getattr(self, type)()
except Exception, error:
print error
continue
def deb(self):
"""Create a .deb package"""
raise NotImplementedError('FIXME if you need debian packages.')
def tar(self, dir = '', keep = False):
self._check_files()
if not dir:
dir = tempfile.mkdtemp('', 'puppet-client-')
name = 'puppet-%s-%s' % (self.hostname, self.version)
tarball = '%s/%s.tar.gz' % (dir, name)
if os.path.exists(tarball) and not self.opts['force_tarball']:
raise PuppetHostError('%s exists, not overwriting' % tarball)
tar = tarfile.open(tarball, 'w:gz')
tar.dereference = True
for f in sorted(self.files.values()):
arcname = '%s%s' % (name, f.replace(self.opts['ssldir'], ''))
tar.add(f, arcname)
tar.close()
self.tarfile = tarball
def rpm(self):
"""Create a .rpm package"""
rpmdir = self.opts['rpmdir']
tmpdir = tempfile.mkdtemp('', 'puppet-client-')
if not self.tarfile or not os.path.exists(self.tarfile):
try: self.tar(tmpdir)
except:
self._cleanup(tmpdir)
raise
specfile = '%s/puppet-%s.spec' % (tmpdir, self.hostname)
text = open(self.opts['template']).read()
text = text.replace('__HOSTNAME__', self.hostname)
text = text.replace('__VERSION__', self.version)
text = text.replace('__RELEASE__', self.opts['release'])
text = text.replace('__SSLDIR__', self.opts['destssldir'])
spec = open(specfile, 'w')
spec.write(text)
spec.close()
build_name_fmt = '%{N}-%{V}-%{R}.%{ARCH}.rpm'
rpmfilecmd = 'rpm -q --qf "%s/%s" --specfile %s' % (
rpmdir, build_name_fmt, specfile)
status, rpm = commands.getstatusoutput(rpmfilecmd)
if status:
self._cleanup(tmpdir)
raise PuppetHostError('Failed to get rpm filename:\n%s' % rpm)
if os.path.exists(rpm) and not self.opts['force_package']:
self._cleanup(tmpdir)
raise PuppetHostError('%s exists, not overwriting' % rpm)
rpmbuild = 'rpmbuild -bb'
rpmbuild += ' --define "_build_name_fmt %s"' % build_name_fmt
for i in ['_builddir', '_sourcedir', '_specdir', '_srcrpmdir']:
rpmbuild += ' --define "%s %s"' % (i, tmpdir)
rpmbuild += ' --define "_rpmdir %s" %s' % (rpmdir, specfile)
status, output = commands.getstatusoutput(rpmbuild)
if status or not os.path.exists(rpm):
self._cleanup(tmpdir)
raise PuppetHostError('Error building rpm:\n', output)
self._cleanup(tmpdir)
self.rpmfile = rpm
def _check_files(self):
"""Check for the files we care about"""
self.files
self.missing = [f for f in self.files.values()
if not os.path.exists(f)]
if self.missing:
error = 'The following required files are missing:\n'
for f in self.missing:
error += '\t%s' % f
raise PuppetHostError(error)
def _cleanup(self, dir):
if os.path.isdir(dir):
shutil.rmtree(dir)
@property
def files(self):
hostname = self.hostname
ssldir = self.opts['ssldir']
return {
'crl': '%s/ca/ca_crl.pem' % ssldir,
'cacert': '%s/certs/ca.pem' % ssldir,
'cert': '%s/certs/%s.pem' % (ssldir, hostname),
'private': '%s/private_keys/%s.pem' % (ssldir, hostname),
}
@property
def version(self):
"""Get the date from a certificate"""
if self._version:
return self._version
self._check_files()
cert = self.files['cert']
try:
x509 = OpenSSL.crypto.load_certificate(OpenSSL.crypto.FILETYPE_PEM,
open(cert).read())
self._version = x509.get_notBefore()[:8]
except:
# pyOpenSSL < 0.7 lacks load_certificate()... do it the hard way
format = '%Y%m%d'
cmd = 'openssl x509 -in %s -text -noout' % cert
status, output = commands.getstatusoutput(cmd)
if status == 0:
date = [l.split(':', 1)[1].lstrip() for l in output.split('\n')
if 'Not Before:' in l][0]
fmt = '%b %d %H:%M:%S %Y %Z'
self._version = time.strftime(format, time.strptime(date, fmt))
else:
self._version = time.strftime(format)
return self._version
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