doc/tutorials/base/blog-in-five-minutes.rst
author Denis Laxalde <denis.laxalde@logilab.fr>
Thu, 09 Mar 2017 16:36:33 +0100
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parent 10491 c67bcee93248
child 12362 aa3581fc685c
child 12363 72fced7549e6
permissions -rw-r--r--
[pyramid] Add a "pyramid" instance configuration type In a new module 'cubicweb.pyramid.config' we define a "pyramid" instance configuration type. The noticeable feature of this configuration is that it manages a 'development.ini' file that gets installed in application home (along with `.conf` file). This file is templated and includes generated values for secrets of session and authtk tokens. This means that we can just call: pserve etc/cubicweb.d/<appname>/development.ini or gunicorn --paste etc/cubicweb.d/<appname>/development.ini -b :8080 just after instance creation to get a pyramid instance running without having to hack around a 'pyramid.ini' file. This patch drops 'development.ini' from skeleton and moves it in cubicweb/pyramid so that it gets installed at instance creation which is more appropriate than in cube creation. The new configuration class sets "cubicweb.bwcompat" setting to false so it is not intended to replace the "all-in-one" configuration type (which would require a bit more work). This configuration is close to the the 'repository' configuration type with just a couple of options from WebConfiguration that are needed for Pyramid (anonymous user/password plus some miscellaneous options that I'm not so sure are really needed). Note, in particular, that we do not pull CORS settings to be injected as a WSGI middleware like in wsgi_application_from_cwconfig() since I believe this should be left as an end-user responsibility and since this can be defined in a standard way in paste configuration. This configuration inherits from ServerConfiguration but registers the same appobjects as WebConfiguration. In cubicweb.web.request._CubicWebRequestBase, we guard against access to "uiprops" and "datadir_url" of the config because this new "pyramid" config does not have these (this does not make sense without bwcompat mode). At some point, we should either avoid using `cw_request`'s pyramid request attribute or make cubicweb's web request really independant of existing implementation and drop these assumptions.
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.. -*- coding: utf-8 -*-
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.. _TutosBaseBlogFiveMinutes:
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Get a blog running in five minutes!
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-----------------------------------
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For Debian or Ubuntu users, first install the following packages
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(:ref:`DebianInstallation`)::
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    cubicweb, cubicweb-dev, cubicweb-blog
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Windows or Mac OS X users must install |cubicweb| from source (see
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:ref:`SourceInstallation` and :ref:`WindowsInstallation`).
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Then create and initialize your instance::
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    cubicweb-ctl create blog myblog
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You'll be asked a few questions, and you can keep the default answer for most of
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them. The one question you'll have to think about is the database you'll want to
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use for that instance. For a quick test, if you don't have `postgresql` installed
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and configured (see :ref:`PostgresqlConfiguration`), it's highly recommended to
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choose `sqlite` when asked for which database driver to use, since it has a much
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simple setup (no database server needed).
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One the process is completed (including database initialisation), you can start
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your instance by using: ::
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    cubicweb-ctl start -D myblog
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The `-D` option activates the debugging mode. Removing it will launch the instance
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as a daemon in the background, and ``cubicweb-ctl stop myblog`` will stop
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it in that case. 
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About file system permissions
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Unless you installed from sources, the above commands assume that you have root
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access to the :file:`/etc/` directory. In order to initialize your instance as a
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regular user, within your home directory, you can use the :envvar:`CW_MODE`
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environment variable: ::
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  export CW_MODE=user
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then create a :file:`~/etc/cubicweb.d` directory that will hold your instances.
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More information about how to configure your own environment is
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available in :ref:`ResourceMode`.
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Instance parameters
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~~~~~~~~~~~~~~~~~~~
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If you would like to change database parameters such as the database host or the
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user name used to connect to the database, edit the `sources` file located in the
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:file:`/etc/cubicweb.d/myblog` directory.
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Then relaunch the database creation::
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     cubicweb-ctl db-create myblog
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Other parameters, like web server or emails parameters, can be modified in the
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:file:`/etc/cubicweb.d/myblog/all-in-one.conf` file.
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You'll have to restart the instance after modification in one of those files.
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This is it. Your blog is functional and running. Visit http://localhost:8080 and enjoy it!
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