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65 lines
4.5 KiB
ReStructuredText
65 lines
4.5 KiB
ReStructuredText
.. _postgresql_user:
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postgresql_user
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```````````````
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.. versionadded:: 0.6
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Add or remove PostgreSQL users (roles) from a remote host and, optionally, grant the users
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access to an existing database or tables.
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The default authentication assumes that you are either logging in as or
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sudo'ing to the postgres account on the host.
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This module uses psycopg2, a Python PostgreSQL database adapter. You must
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ensure that psycopg2 is installed on the host before using this module. If
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the remote host is the PostgreSQL server (which is the default case), then
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PostgreSQL must also be installed on the remote host. For Ubuntu-based systems,
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install the postgresql, libpq-dev, and python-psycopg2 packages on the remote
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host before using this module.
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+--------------------+----------+----------+----------------------------------------------------------------------------+
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| parameter | required | default | comments |
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+====================+==========+==========+============================================================================+
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| name | yes | | name of the user (role) to add or remove |
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+--------------------+----------+----------+----------------------------------------------------------------------------+
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| password | yes | | set the user's password |
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+--------------------+----------+----------+----------------------------------------------------------------------------+
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| db | no | | name of database where permissions will be granted |
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+--------------------+----------+----------+----------------------------------------------------------------------------+
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| priv | no | | PostgreSQL privileges string in the format: table:priv1,priv2 |
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+--------------------+----------+----------+----------------------------------------------------------------------------+
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| fail_on_user | no | yes | if yes, fail when user can't be removed. Otherwise just log and continue |
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+--------------------+----------+----------+----------------------------------------------------------------------------+
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| login_user | no | postgres | user (role) used to authenticate with PostgreSQL |
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+--------------------+----------+----------+----------------------------------------------------------------------------+
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| login_password | no | | password used to authenticate with PostgreSQL |
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+--------------------+----------+----------+----------------------------------------------------------------------------+
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| login_host | no | | host running PostgreSQL. Default (blank) implies localhost |
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+--------------------+----------+----------+----------------------------------------------------------------------------+
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| state | | present | 'absent' or 'present' |
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+--------------------+----------+----------+----------------------------------------------------------------------------+
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The fundamental function of the module is to create, or delete, roles from a PostgreSQL cluster.
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Privilege assignment, or removal, is an optional step, which works on one database at a time.
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This allows for the module to be called several times in the same module to modify the permissions on
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different databases, or to grant permissions to already existing users.
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A user cannot be removed untill all the privileges have been stripped from the user. In such situation,
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if the module tries to remove the user it will fail. To avoid this from happening the *fail_on_user* option
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signals the module to try to remove the user, but if not possible keep going; the module will report if changes
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happened and separately if the user was removed or not.
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Example privileges string format:
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INSERT,UPDATE/table:SELECT/anothertable:ALL
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Example action from Ansible :doc:`playbooks`::
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- name: Create django user and grant access to database and products table
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postgresql_user db=acme user=django password=ceec4eif7ya priv=CONNECT/products:ALL
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- name: Remove test user privileges from acme
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postgresql_user db=acme user=test priv=ALL/products:ALL state=absent fail_on_user=no
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- name: Remove test user from test database and the cluster
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postgresql_user db=test user=test priv=ALL state=absent
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