summaryrefslogtreecommitdiffstats
path: root/puppethost.py
blob: 53efe7df6f24963fbbaa04a85f1ac5afaee136dc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
#!/usr/bin/env python
"""Create a host-specific package for bootstrapping a puppet."""

import os
import sys
import glob
import time
import shutil
import socket
import OpenSSL
import tarfile
import commands
import optparse
import tempfile

defaults = {
    'destssldir': '',
    'domain': '',
    'force': False,
    'force_cert': False,
    'force_tarball': False,
    'force_package': False,
    'release': '1',
    'rpmdir': os.path.abspath(os.curdir),
    'ssldir': '/etc/puppet/ssl',
    'template': '%(ssldir)s/template.spec',
    'verbose': 1,
}

try:
    defaults['domain'] = socket.getfqdn().split('.', 1)[1]
except:
    pass

config = os.path.expanduser('~/.puppethost')
if os.path.exists(config):
    execfile(config, {}, defaults)
    truths = ['true', 'yes', '1']
    # Ensure boolean options are set correctly
    for opt in ['force', 'force_cert', 'force_tarball', 'force_package']:
        defaults[opt] = str(defaults[opt]).lower() in truths
    # Ensure numeric options are set correctly
    for opt in ['verbose']:
        if isinstance(defaults[opt], bool):
            defaults[opt] = int(defaults[opt])
        elif not isinstance(defaults[opt], int):
            try:
                defaults[opt] = int(str(defaults[opt]).lower() in truths)
            except:
                raise
                defaults[opt] = 0

package_types = ['deb', 'rpm']

class PuppetHostError(StandardError):
    pass

class PuppetHost(object):
    def __init__(self, hostname = '', opts = defaults):
        """Puppet host class"""
        if not hostname:
            raise PuppetHostError('A hostname must be provided')

        if '.' not in hostname and opts['domain']:
            hostname = '.'.join([hostname, opts['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)

        if self.opts['verbose']:
            print 'Generating certificate (%s)...' % cert,
            sys.stdout.flush()

        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))

        if self.opts['verbose']:
            print 'done'

    def package(self, packages = ['rpm']):
        """Create packages in requested formats"""
        for package in packages:
            if package not in package_types or not hasattr(self, package):
                raise PuppetHostError('Bogus package type: %s' % package)
            try: getattr(self, package)()
            except Exception, error:
                print error
                continue

    def deb(self):
        """Create a .deb package"""
        raise NotImplementedError('FIXME if you need debian packages.')

    def tar(self, path = ''):
        self._check_files()

        if not path:
            path = tempfile.mkdtemp('', 'puppet-host-')

        name = 'puppet-%s-%s' % (self.hostname, self.version)
        tarball = '%s/%s.tar.gz' % (path, name)

        if os.path.exists(tarball) and not self.opts['force_tarball']:
            raise PuppetHostError('%s exists, not overwriting' % tarball)

        if self.opts['verbose']:
            print 'Creating tarball (%s)...' % tarball,
            sys.stdout.flush()

        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

        if self.opts['verbose']:
            print 'done'

    def rpm(self):
        """Create a .rpm package"""
        rpmdir = self.opts['rpmdir']
        tmpdir = tempfile.mkdtemp('', 'puppet-host-')

        if not self.tarfile or not os.path.exists(self.tarfile):
            try: self.tar(tmpdir)
            except:
                self._cleanup(tmpdir)
                raise

        spec = '%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'])

        specfp = open(spec, 'w')
        specfp.write(text)
        specfp.close()

        rpm_fmt = '%{N}-%{V}-%{R}.%{ARCH}.rpm'
        cmd = 'rpm -q --qf "%s/%s" --specfile %s' % (rpmdir, rpm_fmt, spec)
        status, rpm = commands.getstatusoutput(cmd)
        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)

        if self.opts['verbose']:
            print 'Creating rpm (%s)...' % rpm,
            sys.stdout.flush()

        cmd = 'rpmbuild -bb'
        cmd += ' --define "_build_name_fmt %s"' % rpm_fmt
        for i in ['_builddir', '_sourcedir', '_specdir', '_srcrpmdir']:
            cmd += ' --define "%s %s"' % (i, tmpdir)
        cmd += ' --define "_rpmdir %s" %s' % (rpmdir, spec)

        status, output = commands.getstatusoutput(cmd)
        if status or not os.path.exists(rpm):
            self._cleanup(tmpdir)
            raise PuppetHostError('Error building rpm:\n', output)

        if self.opts['verbose']:
            print 'done'

        self._cleanup(tmpdir)
        self.rpmfile = rpm

    def _check_files(self):
        """Check for the files we care about"""
        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']
        cert = '%s/certs/%s.pem' % (ssldir, hostname)
        casigned = '%s/ca/signed/%s.pem' % (ssldir, hostname)
        if not os.path.exists(cert) and os.path.exists(casigned):
            os.symlink(casigned.replace(ssldir, '..'), cert)
        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

def _main():
    usage = '%prog [options] hostname [hostname ...]'
    parser = optparse.OptionParser(usage=usage)
    parser.defaults = defaults
    parser.add_option('-a', '--all', dest='allcerts', action='store_true',
                      help='Create packages for all signed certificates')
    parser.add_option('-d', '--domain', dest='domain',
                      help='Domain append to non fqdn hostnames [%default]')
    parser.add_option('-f', '--force', dest='force', action='store_true',
                      help='Overwrite existing certs, tarballs, and packages')
    parser.add_option('--force-cert', dest='force_cert', action='store_true',
                      help='Overwrite existing certs')
    parser.add_option('--force-tarball', dest='force_tarball',
                      action='store_true', help='Overwrite existing tarballs')
    parser.add_option('--force-package', dest='force_package',
                      action='store_true', help='Overwrite existing packages')
    parser.add_option('-r', '--rpmdir', dest='rpmdir', metavar='dir',
                      help='Directory where packages are stored [%default]')
    parser.add_option('--release', dest='release', metavar='num',
                      help='Package release number [%default]')
    parser.add_option('-s', '--ssldir', dest='ssldir', metavar='dir',
                      help='Directory where ssl certs are stored [%default]')
    # FIXME improve the help string
    parser.add_option('-S', '--dest-ssldir', dest='destssldir', metavar='dir',
                      help='Directory where ssl certs are packaged')
    parser.add_option('-t', '--template', dest='template', metavar='file',
                      help='RPM spec file template [%default]')
    parser.add_option('-v', '--verbose', dest='verbose', action='count',
                      help='Be verbose (may be used more than once)')
    opts, args = parser.parse_args()

    if opts.force:
        opts.force_cert = True
        opts.force_tarball = True
        opts.force_package = True

    if opts.allcerts:
        args = []
        for cert in glob.glob('%s/ca/signed/*.pem' % opts.ssldir):
            basename = os.path.basename(cert)
            # we need the private key as well as the cert
            if os.path.exists('%s/private_keys/%s' % (opts.ssldir, basename)):
                args.append(os.path.splitext(basename)[0])
        args.sort()

    if not args:
        raise SystemExit(parser.print_usage())

    opts.rpmdir = os.path.expanduser(os.path.abspath(opts.rpmdir))
    opts.ssldir = os.path.expanduser(os.path.abspath(opts.ssldir))
    for d in [opts.rpmdir, opts.ssldir]:
        if not os.path.isdir(d):
            raise SystemExit('%s does not exist (or is not a directory)' % d)

    if not opts.destssldir:
        opts.destssldir = opts.ssldir
    else:
        opts.destssldir = os.path.expanduser(os.path.abspath(opts.destssldir))

    opts.template = os.path.expanduser(opts.template % opts.__dict__)
    if not os.path.isfile(opts.template):
        raise SystemExit('Template file (%s) does not exist' % opts.template)

    for hostname in args:
        if opts.verbose:
            print '\nCreating a host package for %s' % hostname

        host = PuppetHost(hostname, opts.__dict__)

        if not os.path.exists(host.files['cert']) or opts.force_cert:
            try: host.gencert()
            except PuppetHostError, error:
                print error
                continue

        try: host.package()
        except Exception, error:
            print error
            continue

if __name__ == '__main__':
    try: _main()
    except KeyboardInterrupt:
        raise SystemExit(1)