[SlapOS Core] Add configure-local command for standalone slapos.

de11308a · Cédric de Saint Martin · Gabriel Monnerat · dffdfda6 · de11308a · de11308a
Commit de11308a authored Nov 25, 2013 by Cédric de Saint Martin Committed by Gabriel Monnerat Jan 13, 2014
8 changed files
--- a/setup.py
+++ b/setup.py
@@ -94,6 +94,7 @@ setup(name=name,
          'node instance = slapos.cli.slapgrid:InstanceCommand',
          # SlapOS client commands
          'console = slapos.cli.console:ConsoleCommand',
+          'configure local = slapos.cli.configure_local:ConfigureLocalCommand',
          'configure client = slapos.cli.configure_client:ConfigureClientCommand',
          'proxy start = slapos.cli.proxy_start:ProxyStartCommand',
          'proxy show = slapos.cli.proxy_show:ProxyShowCommand',

--- a/slapos.cfg.example
+++ b/slapos.cfg.example
 [slapos]
-# Replace computer_id by the unique identifier of your computer on vifib.net,
-# starting by COMP-
-computer_id = COMP-12345
+# Replace computer_id by the unique identifier of your computer on your SlapOS,
+# Master, usually starting by COMP-
+computer_id = COMP-123456789
 master_url = https://slap.vifib.com/
 key_file = /etc/opt/slapos/ssl/computer.key
 cert_file =  /etc/opt/slapos/ssl/computer.crt
@@ -10,8 +10,8 @@ software_root = /opt/slapgrid
 instance_root = /srv/slapgrid

 [slapformat]
-# Replace by your network interface like eth0, eth1, slapbr0...
-interface_name = interfacename
+# Replace by your network interface providing IPv6 if you don't use re6st
+interface_name = lo
 # Change "create_tap" into "true" if you need to host KVM services
 create_tap = false
 partition_amount = 10
@@ -23,8 +23,8 @@ tap_base_name = slaptap
 # You can choose any other local network which does not conflict with your
 # current machine configuration
 ipv4_local_network = 10.0.0.0/16
-# Comment this if you are using native IPv6 and don't want to use SlapOS tunnel
-ipv6_interface = tapVPN
+# Change to true if you want slapos to use local-only IPv6
+use_unique_local_address = False

 [networkcache]
 # Define options for binary cache, used to download already compiled software.

--- a/slapos/cli/configure_client.py
+++ b/slapos/cli/configure_client.py
@@ -59,6 +59,7 @@ def get_certificate_key_pair(logger, master_url_web, token):


 def fetch_configuration_template():
+    # XXX: change to local version.
    req = requests.get('http://git.erp5.org/gitweb/slapos.core.git/blob_plain/HEAD:/slapos-client.cfg.example')
    req.raise_for_status()
    return req.text

--- a/slapos/cli/configure_local/__init__.py
+++ b/slapos/cli/configure_local/__init__.py
+# -*- coding: utf-8 -*-
+
+##############################################################################
+#
+# Copyright (c) 2013 Vifib SARL and Contributors.
+# All Rights Reserved.
+#
+# WARNING: This program as such is intended to be used by professional
+# programmers who take the whole responsibility of assessing all potential
+# consequences resulting from its eventual inadequacies and bugs
+# End users who are looking for a ready-to-use solution with commercial
+# guarantees and support are strongly advised to contract a Free Software
+# Service Company
+#
+# This program is Free Software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 3
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+##############################################################################
+
+import logging
+import os
+import pkg_resources
+import re
+import subprocess
+import sys
+
+from slapos.cli.command import Command, must_be_root
+from slapos.grid.utils import updateFile
+from slapos.grid.svcbackend import launchSupervisord
+
+DEFAULT_COMPUTER_ID = 'local_computer'
+
+
+class ConfigureLocalCommand(Command):
+    """
+    Configure a slapos node, from scratch to ready-ro-use, using slapproxy.
+    """
+
+    def get_parser(self, prog_name):
+        ap = super(self.__class__, self).get_parser(prog_name)
+
+        ap.add_argument('--interface-name',
+                        default='lo',
+                        help='Primary network interface. IP of Partitions '
+                             'will be added to it'
+                             ' (default: %(default)s)')
+
+        ap.add_argument('--partition-number',
+                        default=20,
+                        type=int,
+                        help='Number of partitions to create in the SlapOS Node'
+                             ' (default: %(default)s)')
+
+        ap.add_argument('--ipv4-local-network',
+                        default='10.0.0.0/16',
+                        help='Subnetwork used to assign local IPv4 addresses. '
+                             'It should be a not used network in order to'
+                             ' avoid conflicts (default: %(default)s)')
+
+        ap.add_argument('--daemon-listen-ip',
+                        default='127.0.0.1',
+                        help='Listening IP of the "slapproxy" daemon'
+                             ' (default: %(default)s)')
+
+        ap.add_argument('--daemon-listen-port',
+                        default='127.0.0.1',
+                        help='Listening port of the "slapproxy" daemon'
+                             ' (default: %(default)s)')
+
+        ap.add_argument('--slapos-configuration-directory',
+                        default='/etc/opt/slapos',
+                        help='Target location of the SlapOS configuration'
+                             ' directory (default: %(default)s)')
+
+        return ap
+
+    @must_be_root
+    def take_action(self, args):
+        try:
+            return_code = do_configure(args, logger)
+        except SystemExit as err:
+            return_code = err
+
+        sys.exit(return_code)
+
+
+def _createDirectoryIfNotExist(target_directory, logger):
+    target_directory = os.path.normpath(target_directory)
+    # XXX: hardcoded
+    if os.path.exists(os.path.join(target_directory, 'slapos.cfg')):
+        logger.error('A SlapOS configuration directory already exist at'
+                     ' %s. Aborting.' % target_directory)
+        raise SystemExit(1)
+    if not os.path.exists(target_directory):
+      os.mkdir(target_directory, 0o711)
+    return target_directory
+
+
+def _replaceParameterValue(original_content, to_replace):
+    """
+    Replace in a .ini-like file the value of all parameters specified in
+    to_replace by their value.
+    """
+    # XXX: Can be cleaned up by being replaced by a simple dict
+    new_content = ''
+    for key, value in to_replace:
+        # Replace all values of the given parameters to the specified values
+        new_content = re.sub(
+            '%s\s+=.*' % key, '%s = %s' % (key, value),
+            original_content
+        )
+    return new_content
+
+def _generateSlaposNodeConfigurationFile(target_directory,
+                                         listening_ip, listening_port,
+                                         interface_name,
+                                         ipv4_local_network,
+                                         partition_number):
+    slapos_node_configuration_template = pkg_resources.resource_stream(
+        __name__, 'template/slapos.cfg.in').read()
+    slapos_node_configuration_file_location = os.path.join(
+        target_directory, 'slapos.cfg')
+    to_replace = [
+        ('computer_id', DEFAULT_COMPUTER_ID),
+        ('master_url', 'http://%s:%s' % (listening_ip, listening_port)),
+        ('interface_name', interface_name),
+        ('ipv4_local_network', ipv4_local_network),
+        ('partition_amount', partition_number),
+        ('use_unique_local_address', 'true')
+    ]
+
+    slapos_node_configuration_content = _replaceParameterValue(
+        slapos_node_configuration_template, to_replace)
+
+    with open(slapos_node_configuration_file_location, 'w') as fout:
+        fout.write(slapos_node_configuration_content.encode('utf8'))
+
+
+def _generateSlaposProxyConfigurationFile(target_directory,
+                                          listening_ip, listening_port
+                                          ):
+    slapos_proxy_configuration_template = pkg_resources.resource_stream(
+        __name__, 'template/slapos-proxy.cfg.in').read()
+    slapos_proxy_configuration_file_location = os.path.join(
+        target_directory, 'slapos-proxy.cfg')
+    to_replace = [
+        ('host', listening_ip),
+        ('port', listening_port),
+    ]
+
+    slapos_proxy_configuration_content = _replaceParameterValue(
+        slapos_proxy_configuration_template, to_replace)
+
+    with open(slapos_proxy_configuration_file_location, 'w') as fout:
+        fout.write(slapos_proxy_configuration_content.encode('utf8'))
+
+    return slapos_proxy_configuration_file_location
+
+def _addProxyToSupervisor(proxy_configuration_file):
+    """
+    Create a supervisord configuration file containing informations to run
+    slapproxy as daemon
+    """
+    # In the beginning God created SlapOS.
+    # And SlapOS was without form, and void; and darkness was upon the face of the deep.
+    # And God said, Let there be supervisord manager.
+    # But God was drunk. The result can be found by the Brave in slapgrid, but it may turn the Brave blind forever.
+    # So, for the sake of God, I'm not using that helper.
+
+    # XXX every path here is hardcoded, assuming default values
+    program_partition_template = """\
+[program:slapproxy]
+directory=/opt/slapos
+command=%(program_command)s
+process_name=slapproxy
+autostart=true
+autorestart=true
+startsecs=0
+startretries=0
+exitcodes=0
+stopsignal=TERM
+stopwaitsecs=60
+user=0
+group=0
+serverurl=AUTO
+redirect_stderr=true
+stdout_logfile=%(log_file)s
+stdout_logfile_maxbytes=100KB
+stdout_logfile_backups=1
+stderr_logfile=%(log_file)s
+stderr_logfile_maxbytes=100KB
+stderr_logfile_backups=1
+""" % {'log_file': '/opt/slapos/log/slapos-proxy.log',
+       'program_command': '/opt/slapos/bin/slapproxy %s' % proxy_configuration_file}
+
+    updateFile(
+        '/srv/slapgrid/etc/supervisord.conf.d/slapproxy.conf',
+        program_partition_template
+    )
+
+def _runFormat():
+    """
+    Launch slapos node format.
+    """
+    # XXX: hardcoded
+    command = '/opt/slapos/bin/slapos node format --now -v'.split()
+    subprocess.Popen(command).communicate()
+
+
+def do_configure(conf, logger):
+    """
+    Generate configuration files,
+    Create the instance path by running slapformat (but will crash),
+    Add proxy to supervisor,
+    Run supervisor, which will run the proxy,
+    Run format, which will finish correctly.
+    """
+    slapos_configuration_directory = _createDirectoryIfNotExist(
+        conf.slapos_configuration_directory, logger)
+
+    _generateSlaposNodeConfigurationFile(
+        slapos_configuration_directory,
+        conf.daemon_listen_ip,
+        conf.daemon_listen_port,
+        conf.interface_name,
+        conf.ipv4_local_network,
+        conf.partition_number
+    )
+    proxy_configuration_file_location = _generateSlaposProxyConfigurationFile(
+        slapos_configuration_directory,
+        conf.daemon_listen_ip,
+        conf.daemon_listen_port
+    )
+    _runFormat()
+    _addProxyToSupervisor(proxy_configuration_file_location)
+    # XXX hardcoded
+    launchSupervisord(
+        '/srv/slapgrid/supervisord.socket',
+        '/srv/slapgrid/etc/supervisord.conf',
+        logger=logger)
+    _runFormat()
+    return 0
--- a/slapos/cli/configure_local/template/slapos-proxy.cfg.in
+++ b/slapos/cli/configure_local/template/slapos-proxy.cfg.in
+# This is an example configuration file for a standalone micro slapos master
+# a.k.a slapproxy
+[slapproxy]
+host = %(host)s
+port = %(port)s
+database_uri = /opt/slapos/slapproxy.db
+
+# Below is the list of software maintained by slapos.org and contributors
+# It is used to simulate a proper configuration of a real slapos master.
+software_product_list =
+  erp5 http://git.erp5.org/gitweb/slapos.git/blob_plain/refs/tags/slapos-0.143:/software/erp5/software.cfg
+  erp5_branch http://git.erp5.org/gitweb/slapos.git/blob_plain/refs/heads/erp5:/software/erp5/software.cfg
+  kumofs http://git.erp5.org/gitweb/slapos.git/blob_plain/refs/tags/slapos-0.141:/software/kumofs/software.cfg
+  kvm http://git.erp5.org/gitweb/slapos.git/blob_plain/refs/tags/slapos-0.193:/software/kvm/software.cfg
+  maarch http://git.erp5.org/gitweb/slapos.git/blob_plain/refs/tags/slapos-0.159:/software/maarch/software.cfg
+  mariadb http://git.erp5.org/gitweb/slapos.git/blob_plain/refs/tags/slapos-0.152:/software/mariadb/software.cfg
+  memcached http://git.erp5.org/gitweb/slapos.git/blob_plain/refs/tags/slapos-0.82:/software/memcached/software.cfg
+  slaposwebrunner http://git.erp5.org/gitweb/slapos.git/blob_plain/refs/tags/slapos-0.160:/software/slaprunner/software.cfg
+  wordpress http://git.erp5.org/gitweb/slapos.git/blob_plain/refs/tags/slapos-0.163:/software/wordpress/software.cfg
+  zabbixagent http://git.erp5.org/gitweb/slapos.git/blob_plain/refs/tags/slapos-0.162:/software/zabbix-agent/software.cfg
--- a/slapos/cli/configure_local/template/slapos.cfg.in
+++ b/slapos/cli/configure_local/template/slapos.cfg.in
+[slapos]
+# Replace computer_id by the unique identifier of your computer on your SlapOS,
+# Master, usually starting by COMP-
+computer_id = %(computer_id)s
+master_url = %(master_url)s
+software_root = /opt/slapgrid
+instance_root = /srv/slapgrid
+
+[slapformat]
+# Replace by your network interface providing IPv6 if you don't use re6st
+interface_name = %(interface_name)s
+# Change "create_tap" into "true" if you need to host KVM services
+create_tap = false
+partition_amount = %(partition_amount)s
+computer_xml = /opt/slapos/slapos.xml
+log_file = /opt/slapos/log/slapos-node-format.log
+partition_base_name = slappart
+user_base_name = slappart
+# You can choose any other local network which does not conflict with your
+# current machine configuration
+ipv4_local_network = %(ipv4_local_network)
+# Change to true if you want slapos to use local-only IPv6
+use_unique_local_address = True
+
+[networkcache]
+# Define options for binary cache, used to download already compiled software.
+download-binary-cache-url = http://www.shacache.org/shacache
+download-cache-url = https://www.shacache.org/shacache
+download-binary-dir-url = http://www.shacache.org/shadir
+
+# Configuration to Upload Configuration for Binary cache
+#upload-binary-dir-url = https://www.shacache.org/shadir
+#upload-binary-cache-url = https://www.shacache.org/shacache
+#signature_private_key_file = /etc/opt/slapos/shacache/signature.key
+#signature_certificate_file = /etc/opt/slapos/shacache/signature.cert
+#upload-cache-url = https://www.shacache.org/shacache
+#shacache-cert-file = /etc/opt/slapos/shacache/shacache.cert
+#shacache-key-file = /etc/opt/slapos/shacache/shacache.key
+#upload-binary-dir-url = https://www.shacache.org/shadir
+#upload-binary-cache-url = https://www.shacache.org/shacache
+#upload-dir-url = https://www.shacache.org/shadir
+#shadir-cert-file = /etc/opt/slapos/shacache/shacache.cert
+#shadir-key-file = /etc/opt/slapos/shacache/shacache.key
+
+# List of signatures of uploaders we trust:
+#   Romain Courteaud
+#   Sebastien Robin
+#   Kazuhiko Shiozaki
+#   Cedric de Saint Martin
+#   Yingjie Xu
+#   Gabriel Monnerat
+#   Lukasz Nowak
+#   Marco Mariani
+#   Test Agent Signature
+signature-certificate-list =
+  -----BEGIN CERTIFICATE-----
+  MIIB4DCCAUkCADANBgkqhkiG9w0BAQsFADA5MQswCQYDVQQGEwJGUjEZMBcGA1UE
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+  -----BEGIN CERTIFICATE-----
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+  -----BEGIN CERTIFICATE-----
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+# List of URL(s) which shouldn't be downloaded from binary cache.
+# Any URL beginning by a blacklisted URL will be blacklisted as well.
+download-from-binary-cache-url-blacklist =
+  http://git.erp5.org/gitweb/slapos.git/blob_plain/HEAD
+  http://git.erp5.org/gitweb/slapos.git/blob_plain/refs/heads
+  /
+# List of URL(s) which shouldn't be uploaded into binary cache.
+# Any URL beginning by a blacklisted URL will be blacklisted as well.
+upload-to-binary-cache-url-blacklist =
+  http://git.erp5.org/gitweb/slapos.git/blob_plain/HEAD
+  http://git.erp5.org/gitweb/slapos.git/blob_plain/refs/heads
+  /
--- a/slapos/cli/register.py
+++ b/slapos/cli/register.py
@@ -233,6 +233,7 @@ def slapconfig(conf):
    # Put slapos configuration file
    config_path = os.path.join(slap_conf_dir, 'slapos.cfg')

+    # XXX: We should actually get the template from the egg, not from git
    cfg = fetch_configuration_template()

    to_replace = [

--- a/slapos/format.py
+++ b/slapos/format.py
@@ -393,13 +393,29 @@ class Computer(object):
      except ValueError:
        pass

-  def construct(self, alter_user=True, alter_network=True, create_tap=True):
+  def _addUniqueLocalAddressIpv6(self, interface_name):
+    """
+    Create a unique local address in the interface interface_name, so that
+    slapformat can build upon this.
+    See https://en.wikipedia.org/wiki/Unique_local_address.
+    """
+    command = 'ip address add dev %s fd00::1/64' % interface_name
+    subprocess.Popen(command.split()).communicate()
+
+  def construct(self, alter_user=True, alter_network=True, create_tap=True, unique_local_address=False):
    """
    Construct the computer object as it is.
    """
    if alter_network and self.address is not None:
      self.interface.addAddr(self.address, self.netmask)

+    if unique_local_address and alter_network:
+      if self.ipv6_interface:
+        network_interface_name = self.ipv6_interface
+      else:
+        network_interface_name = self.name
+      self._addUniqueLocalAddressIpv6(network_interface_name)
+
    for path in self.instance_root, self.software_root:
      if not os.path.exists(path):
        os.makedirs(path, 0o755)
@@ -1089,7 +1105,8 @@ def do_format(conf):

  computer.construct(alter_user=conf.alter_user,
                     alter_network=conf.alter_network,
-                     create_tap=conf.create_tap)
+                     create_tap=conf.create_tap,
+                     unique_local_address=conf.use_unique_local_address_block)

  if getattr(conf, 'certificate_repository_path', None):
    mkdir_p(conf.certificate_repository_path, mode=0o700)
@@ -1117,6 +1134,7 @@ class FormatConfig(object):
  output_definition_file = None
  dry_run = None
  software_user = None
+  use_unique_local_address_block = None

  def __init__(self, logger):
    self.logger = logger
@@ -1184,9 +1202,11 @@ class FormatConfig(object):
      self.software_user = 'slapsoft'
    if self.create_tap is None:
      self.create_tap = True
+    if self.use_unique_local_address_block is None:
+      self.use_unique_local_address_block = False

    # Convert strings to booleans
-    for option in ['alter_network', 'alter_user', 'create_tap']:
+    for option in ['alter_network', 'alter_user', 'create_tap', 'use_unique_local_address_block']:
      attr = getattr(self, option)
      if isinstance(attr, str):
        if attr.lower() == 'true':