summaryrefslogtreecommitdiffstats
path: root/docker/docker-puppet.py
blob: d9496af6b3c9c31a78d2140f85e42ef6e8cef5e1 (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
#!/usr/bin/env python
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

# Shell script tool to run puppet inside of the given docker container image.
# Uses the config file at /var/lib/docker-puppet/docker-puppet.json as a source for a JSON
# array of [config_volume, puppet_tags, manifest, config_image, [volumes]] settings
# that can be used to generate config files or run ad-hoc puppet modules
# inside of a container.

import json
import os
import subprocess
import sys
import tempfile
import multiprocessing


# this is to match what we do in deployed-server
def short_hostname():
    subproc = subprocess.Popen(['hostname', '-s'],
                               stdout=subprocess.PIPE,
                               stderr=subprocess.PIPE)
    cmd_stdout, cmd_stderr = subproc.communicate()
    return cmd_stdout.rstrip()


def pull_image(name):
    print('Pulling image: %s' % name)
    subproc = subprocess.Popen(['/usr/bin/docker', 'pull', name],
                               stdout=subprocess.PIPE,
                               stderr=subprocess.PIPE)
    cmd_stdout, cmd_stderr = subproc.communicate()
    print(cmd_stdout)
    print(cmd_stderr)


def rm_container(name):
    if os.environ.get('SHOW_DIFF', None):
        print('Diffing container: %s' % name)
        subproc = subprocess.Popen(['/usr/bin/docker', 'diff', name],
                                   stdout=subprocess.PIPE,
                                   stderr=subprocess.PIPE)
        cmd_stdout, cmd_stderr = subproc.communicate()
        print(cmd_stdout)
        print(cmd_stderr)

    print('Removing container: %s' % name)
    subproc = subprocess.Popen(['/usr/bin/docker', 'rm', name],
                               stdout=subprocess.PIPE,
                               stderr=subprocess.PIPE)
    cmd_stdout, cmd_stderr = subproc.communicate()
    print(cmd_stdout)
    print(cmd_stderr)

process_count = int(os.environ.get('PROCESS_COUNT',
                                   multiprocessing.cpu_count()))

config_file = os.environ.get('CONFIG', '/var/lib/docker-puppet/docker-puppet.json')
print('docker-puppet')
print('CONFIG: %s' % config_file)
with open(config_file) as f:
    json_data = json.load(f)

# To save time we support configuring 'shared' services at the same
# time. For example configuring all of the heat services
# in a single container pass makes sense and will save some time.
# To support this we merge shared settings together here.
#
# We key off of config_volume as this should be the same for a
# given group of services.  We are also now specifying the container
# in which the services should be configured.  This should match
# in all instances where the volume name is also the same.

configs = {}

for service in (json_data or []):
    if service is None:
        continue
    if isinstance(service, dict):
        service = [
            service.get('config_volume'),
            service.get('puppet_tags'),
            service.get('step_config'),
            service.get('config_image'),
            service.get('volumes', []),
        ]

    config_volume = service[0] or ''
    puppet_tags = service[1] or ''
    manifest = service[2] or ''
    config_image = service[3] or ''
    volumes = service[4] if len(service) > 4 else []

    print('---------')
    print('config_volume %s' % config_volume)
    print('puppet_tags %s' % puppet_tags)
    print('manifest %s' % manifest)
    print('config_image %s' % config_image)
    print('volumes %s' % volumes)
    # We key off of config volume for all configs.
    if config_volume in configs:
        # Append puppet tags and manifest.
        print("Existing service, appending puppet tags and manifest\n")
        if puppet_tags:
            configs[config_volume][1] = '%s,%s' % (configs[config_volume][1],
                                                   puppet_tags)
        if manifest:
            configs[config_volume][2] = '%s\n%s' % (configs[config_volume][2],
                                                    manifest)
        if configs[config_volume][3] != config_image:
            print("WARNING: Config containers do not match even though"
                  " shared volumes are the same!\n")
    else:
        print("Adding new service\n")
        configs[config_volume] = service

print('Service compilation completed.\n')

def mp_puppet_config((config_volume, puppet_tags, manifest, config_image, volumes)):

    print('---------')
    print('config_volume %s' % config_volume)
    print('puppet_tags %s' % puppet_tags)
    print('manifest %s' % manifest)
    print('config_image %s' % config_image)
    print('volumes %s' % volumes)
    hostname = short_hostname()
    sh_script = '/var/lib/docker-puppet/docker-puppet-%s.sh' % config_volume

    with open(sh_script, 'w') as script_file:
        os.chmod(script_file.name, 0755)
        script_file.write("""#!/bin/bash
        set -ex
        mkdir -p /etc/puppet
        cp -a /tmp/puppet-etc/* /etc/puppet
        rm -Rf /etc/puppet/ssl # not in use and causes permission errors
        echo '{"step": %(step)s}' > /etc/puppet/hieradata/docker.json
        TAGS=""
        if [ -n "%(puppet_tags)s" ]; then
            TAGS='--tags "%(puppet_tags)s"'
        fi
        FACTER_hostname=%(hostname)s FACTER_uuid=docker /usr/bin/puppet apply --verbose $TAGS /etc/config.pp

        # Disables archiving
        if [ -z "%(no_archive)s" ]; then
            rm -Rf /var/lib/config-data/%(name)s

            # copying etc should be enough for most services
            mkdir -p /var/lib/config-data/%(name)s/etc
            cp -a /etc/* /var/lib/config-data/%(name)s/etc/

            if [ -d /root/ ]; then
              cp -a /root/ /var/lib/config-data/%(name)s/root/
            fi
            if [ -d /var/lib/ironic/tftpboot/ ]; then
              mkdir -p /var/lib/config-data/%(name)s/var/lib/ironic/
              cp -a /var/lib/ironic/tftpboot/ /var/lib/config-data/%(name)s/var/lib/ironic/tftpboot/
            fi
            if [ -d /var/lib/ironic/httpboot/ ]; then
              mkdir -p /var/lib/config-data/%(name)s/var/lib/ironic/
              cp -a /var/lib/ironic/httpboot/ /var/lib/config-data/%(name)s/var/lib/ironic/httpboot/
            fi

            # apache services may files placed in /var/www/
            if [ -d /var/www/ ]; then
             mkdir -p /var/lib/config-data/%(name)s/var/www
             cp -a /var/www/* /var/lib/config-data/%(name)s/var/www/
            fi
        fi
        """ % {'puppet_tags': puppet_tags, 'name': config_volume,
               'hostname': hostname,
               'no_archive': os.environ.get('NO_ARCHIVE', ''),
               'step': os.environ.get('STEP', '6')})

    with tempfile.NamedTemporaryFile() as tmp_man:
        with open(tmp_man.name, 'w') as man_file:
            man_file.write('include ::tripleo::packages\n')
            man_file.write(manifest)

        rm_container('docker-puppet-%s' % config_volume)
        pull_image(config_image)

        dcmd = ['/usr/bin/docker', 'run',
                '--user', 'root',
                '--name', 'docker-puppet-%s' % config_volume,
                '--volume', '%s:/etc/config.pp:ro' % tmp_man.name,
                '--volume', '/etc/puppet/:/tmp/puppet-etc/:ro',
                '--volume', '/usr/share/openstack-puppet/modules/:/usr/share/openstack-puppet/modules/:ro',
                '--volume', '/var/lib/config-data/:/var/lib/config-data/:rw',
                '--volume', 'tripleo_logs:/var/log/tripleo/',
                '--volume', '%s:%s:rw' % (sh_script, sh_script) ]

        for volume in volumes:
            dcmd.extend(['--volume', volume])

        dcmd.extend(['--entrypoint', sh_script])

        env = {}
        if os.environ.get('NET_HOST', 'false') == 'true':
            print('NET_HOST enabled')
            dcmd.extend(['--net', 'host', '--volume',
                         '/etc/hosts:/etc/hosts:ro'])
        dcmd.append(config_image)

        subproc = subprocess.Popen(dcmd, stdout=subprocess.PIPE,
                                   stderr=subprocess.PIPE, env=env)
        cmd_stdout, cmd_stderr = subproc.communicate()
        print(cmd_stdout)
        print(cmd_stderr)
        if subproc.returncode != 0:
            print('Failed running docker-puppet.py for %s' % config_volume)
        rm_container('docker-puppet-%s' % config_volume)
        return subproc.returncode

# Holds all the information for each process to consume.
# Instead of starting them all linearly we run them using a process
# pool.  This creates a list of arguments for the above function
# to consume.
process_map = []

for config_volume in configs:

    service = configs[config_volume]
    puppet_tags = service[1] or ''
    manifest = service[2] or ''
    config_image = service[3] or ''
    volumes = service[4] if len(service) > 4 else []

    if puppet_tags:
        puppet_tags = "file,file_line,concat,%s" % puppet_tags
    else:
        puppet_tags = "file,file_line,concat"

    process_map.append([config_volume, puppet_tags, manifest, config_image, volumes])

for p in process_map:
    print '--\n%s' % p

# Fire off processes to perform each configuration.  Defaults
# to the number of CPUs on the system.
p = multiprocessing.Pool(process_count)
p.map(mp_puppet_config, process_map)