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95 lines
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ReStructuredText
95 lines
5.0 KiB
ReStructuredText
.. _desktop_deployment:
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***************************
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`Desktop Deployment`:index:
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***************************
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pgAdmin may be deployed as a desktop application by configuring the application
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to run in desktop mode and then utilising the desktop runtime to host the
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program on a supported Windows, Mac OS X or Linux installation.
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The desktop runtime is a system-tray application that when launched, runs the
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pgAdmin server and launches a web browser to render the user interface. If
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additional instances of pgAdmin are launched, a new browser tab will be opened
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and be served by the existing instance of the server in order to minimise system
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resource utilisation. Clicking the icon in the system tray will present a menu
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offering options to open a new pgAdmin window, configure the runtime, view the
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server log and shut down the server.
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.. note:: Pre-compiled and configured installation packages are available for
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a number of platforms. These packages should be used by end-users whereever
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possible - the following information is useful for the maintainers of those
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packages and users interested in understanding how pgAdmin works.
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.. seealso:: For detailed instructions on building and configuring pgAdmin from
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scratch, please see the README file in the top level directory of the source code.
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For convenience, you can find the latest version of the file
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`here <https://git.postgresql.org/gitweb/?p=pgadmin4.git;a=blob_plain;f=README>`_,
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but be aware that this may differ from the version included with the source code
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for a specific version of pgAdmin.
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Configuration
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*************
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From pgAdmin 4 v2 onwards, the default configuration mode is server, however,
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this is overridden by the desktop runtime at startup. In most environments, no
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Python configuration is required unless you wish to override other default
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settings.
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There are multiple configuration files that are read at startup by pgAdmin. These
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are as follows:
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* ``config.py``: This is the main configuration file, and should not be modified.
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It can be used as a reference for configuration settings, that may be overridden
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in one of the following files.
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* ``config_distro.py``: This file is read after ``config.py`` and is intended for
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packagers to change any settings that are required for their pgAdmin distribution.
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This may typically include certain paths and file locations.
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* ``config_local.py``: This file is read after ``config_distro.py`` and is intended
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for end users to change any default or packaging specific settings that they may
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wish to adjust to meet local preferences or standards.
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.. note:: If the SERVER_MODE setting is changed in ``config_distro.py`` or ``config_local.py``,
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you will most likely need to re-set the LOG_FILE, SQLITE_PATH, SESSION_DB_PATH
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and STORAGE_DIR values as well as they will have been set based on the default
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configuration or overridden by the runtime.
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Runtime
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-------
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When executed, the runtime will automatically try to execute the pgAdmin Python
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application. If execution fails, it will prompt you to adjust the Python Path
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to include the directories containing the pgAdmin code as well as any additional
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Python dependencies. You can enter a list of paths by separating them with a
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semi-colon character, for example:
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.. code-block:: bash
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/Users/dpage/.virtualenvs/pgadmin4/lib/python2.7/site-packages/;/Users/dpage/python-libs/
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The configuration settings are stored using the QSettings class in Qt, which
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will use an INI file on Unix systems (~/.config/pgadmin/pgadmin4.conf),
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a plist file on Mac OS X (~/Library/Preferences/org.pgadmin.pgadmin4.plist),
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and the registry on Windows (HKEY_CURRENT_USER\\Software\\pgadmin\\pgadmin4).
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The configuration settings:
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.. table::
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:class: longtable
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:widths: 2 1 4
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+--------------------------+--------------------+---------------------------------------------------------------+
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| Key | Type | Purpose |
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+==========================+====================+===============================================================+
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| ApplicationPath | String | The directory containing pgAdmin4.py |
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+--------------------------+--------------------+---------------------------------------------------------------+
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| BrowserCommand | String | An alternate command to run instead of the default browser. |
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+--------------------------+--------------------+---------------------------------------------------------------+
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| ConnectionTimeout | Integer | The number of seconds to wait for application server startup. |
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+--------------------------+--------------------+---------------------------------------------------------------+
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| PythonPath | String | The Python module search path |
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+--------------------------+--------------------+---------------------------------------------------------------+
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