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ZC Buildout recipe for installing a ZEO server

Project description

Overview

This recipe creates and configures a ZEO server in parts. It also installs a control script in the bin/ directory. The name of the control script is the name of the part in buildout.

You can use it with a part like this:

[zeo]
recipe = plone.recipe.zeoserver
zeo-address = 8100

This will create a control script bin/zeo.

You can either start the database in foreground mode via bin/zeo fg or use the built-in zdaemon process control and use the start/stop/restart/status commands. The foreground mode is suitable for running the process under general process control software like supervisord.

Note: Windows support for this recipe is currently limited.

Options

The following options all affect the generated zeo.conf. If you want to have full control over the configuration file, see the zeo-conf option in the advanced options.

Process

zeo-address

Give a port for the ZEO server (either specify the port number only (with ‘127.0.0.1’ as default) or you use the format host:port). Defaults to 8100.

effective-user

The name of the effective user for the ZEO process. Defaults to not setting an effective user. This causes the process to run under the user account the process has been started with.

socket-name

The filename where ZEO will write its socket file. Defaults to var/zeo.zdsock.

Storage

storage-number

The number used to identify a storage. Defaults to 1.

file-storage

The filename where the ZODB data file will be stored. Defaults to var/filestorage/Data.fs.

blob-storage

The folder where the ZODB blob data files will be stored. Defaults to var/blobstorage.

Logging

zeo-log

The filename of the ZEO log file. Defaults to var/log/${partname}.log.

zeo-log-format

Format of logfile entries. Defaults to %(asctime)s %(message)s.

zeo-log-custom

A custom section for the eventlog, to be able to use another event logger than logfile. zeo-log is still used to set the logfile value in the runner section.

Authentication

authentication-database

The filename for a authentication database. Only accounts listed in this database will be allowed to access the ZEO server.

The format of the database file is:

realm <realm>
<username>:<hash>

Where the hash is generated via:

import sha
string = "%s:%s:%s" % (username, realm, password)
sha.new(string).hexdigest()
authentication-realm

The authentication realm. Defaults to ZEO.

Packing

pack-days

How many days of history should the zeopack script retain. Defaults to one day.

pack-gc

Can be set to false to disable garbage collection as part of the pack. Defaults to true.

pack-keep-old

Can be set to false to disable the creation of *.fs.old files before the pack is run. Defaults to true.

pack-user

If the ZEO server uses authentication, this is the username used by the zeopack script to connect to the ZEO server.

pack-password

If the ZEO server uses authentication, this is the password used by the zeopack script to connect to the ZEO server.

Monitoring

monitor-address

The address at which the monitor server should listen. The monitor server provides server statistics in a simple text format.

Performance

invalidation-queue-size

The invalidation-queue-size used for the ZEO server. Defaults to 100.

Customization

zeo-conf-additional

Give additional lines to zeo.conf. Make sure you indent any lines after the one with the parameter. This allows you to use generated zeo.conf file but add some minor additional lines to it.

eggs

Set if you need to include other packages as eggs e.g. for making application code available on the ZEO server side for performing conflict resolution (through the _p_resolveConflict() handler).

extra-paths

Specify additional directories which should be available to the control scripts. Use this only for non-eggified Python packages.

zeo-conf

A relative or absolute path to a zeo.conf file. This lets you provide a completely custom configuration file and ignore most of the options in this recipe.

repozo

The path to the repozo.py backup script. A wrapper for this will be generated in bin/repozo, which sets up the appropriate environment for running this. Defaults to using the repozo script from the ZODB3 egg. Set this to an empty value if you do not want this script to be generated.

zeopack

The path to the zeopack.py backup script. A wrapper for this will be generated in bin/zeopack, which sets up the appropriate environment to run this. Defaults to using the zeopack script from the ZODB3 egg. Set this option to an empty value if you do not want this script to be generated.

relative-paths

Set this to true to make the generated scripts use relative paths. You can also enable this in the [buildout] section.

Reporting bugs or asking questions

We have a shared bugtracker and help desk on Launchpad: https://bugs.launchpad.net/collective.buildout/

Changelog

1.1 - 2010-07-18

  • No changes.

1.1b1 - 2010-07-02

  • Implemented Windows support and support for running ZEO as a Windows service. We depend on the new nt_svcutils distribution to provide this support. [baijum, hannosch]

  • The FileStorage component of ZODB 3.9 now supports blobs natively, so no need to use BlobStorage proxy for it anymore. [baijum, hannosch]

  • Added extra-paths option to add additional modules paths. [baijum]

  • Fixed ZEO packing of mounted storage. [vangheem]

  • Added -B option to the zeopack script to specify the location of the blob storage. [vangheem]

1.1a2 - 2010-05-10

  • Added support for the pack-keep-old option introduced in ZODB 3.9. [hannosch]

1.1a1 - 2010-04-27

  • Added support for the pack-gc option introduced in ZODB 3.9. [hannosch]

  • Always create a blob-storage by default. [hannosch]

  • Require at least ZODB 3.8 and simplify the zeopack script. [hannosch]

  • Various documentation updates. [hannosch]

  • Use the new zope.mkzeoinstance package, which makes the recipe compatible with ZODB 3.9.5+. [hannosch]

  • Removed unmaintained win32 specific tests and old zope2 test mockups. [hannosch]

  • Removed testing dependency on zope.testing and refactored testing setup. [hannosch]

1.0 - 2010-04-05

  • Depend on and always include ZopeUndo. While it’s only needed for Zope 2, the distribution is so tiny, it doesn’t hurt for non-Zope 2 ZEO servers. [hannosch]

1.0b1 - 2010-03-19

  • Fixed issue with egg paths for the zeopack script. [davisagli]

  • Added support for setting ZEO log level. [baijum]

1.0a2 - 2009-12-03

  • Set up logging configuration that is needed by ZODB.blob. [davisagli]

  • Set shared_blob_dir to True when initializing the ClientStorage used by the pack script, since it will be using the same blob directory as the ZEO server. [davisagli]

1.0a1 - 2009-12-03

  • Updated and cleaned up after renaming. [hannosch]

  • Added compatibility with eggified Zopes (Zope >= 2.12). [davisagli]

  • Initial implementation based on plone.recipe.zope2zeoserver. [plone]

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