Postgresql Operations

The PostgreSQL modules manage PostgreSQL databases, users and privileges.

Requires the psql CLI executable on the target host(s).

All operations in this module take four optional global arguments:

• postgresql_user: the username to connect to postgresql to
• postgresql_password: the password for the connecting user
• postgresql_host: the hostname of the server to connect to
• postgresql_port: the port of the server to connect to

See example/postgresql.py for detailed example

postgresql.database

Add/remove PostgreSQL databases.

postgresql.database(
    database, present=True, owner=None, template=None, encoding=None, lc_collate=None,
    lc_ctype=None, tablespace=None, connection_limit=None, postgresql_user=None,
    postgresql_password=None, postgresql_host=None, postgresql_port=None,
)

• name: name of the database
• present: whether the database should exist or not
• owner: the PostgreSQL role that owns the database
• template: name of the PostgreSQL template to use
• encoding: encoding of the database
• lc_collate: lc_collate of the database
• lc_ctype: lc_ctype of the database
• tablespace: the tablespace to use for the template
• connection_limit: the connection limit to apply to the database
• postgresql_*: global module arguments, see above

Updates:

pyinfra will not attempt to change existing databases - it will either create or drop databases, but not alter them (if the db exists this operation will make no changes).

Example:

postgresql.database(
    name='Create the pyinfra_stuff database',
    database='pyinfra_stuff',
    owner='pyinfra',
    encoding='UTF8',
    sudo_user='postgres',
)

postgresql.dump

Dump a PostgreSQL database into a .sql file. Requires pg_dump.

postgresql.dump(
    dest, database=None, postgresql_user=None, postgresql_password=None, postgresql_host=None,
    postgresql_port=None,
)

• dest: name of the file to dump the SQL to
• database: name of the database to dump
• postgresql_*: global module arguments, see above

Example:

postgresql.dump(
    name='Dump the pyinfra_stuff database',
    dest='/tmp/pyinfra_stuff.dump',
    database='pyinfra_stuff',
    sudo_user='postgres',
)

postgresql.load

Load .sql file into a database.

postgresql.load(
    src, database=None, postgresql_user=None, postgresql_password=None, postgresql_host=None,
    postgresql_port=None,
)

• src: the filename to read from
• database: name of the database to import into
• postgresql_*: global module arguments, see above

Example:

postgresql.load(
    name='Import the pyinfra_stuff dump into pyinfra_stuff_copy',
    src='/tmp/pyinfra_stuff.dump',
    database='pyinfra_stuff_copy',
    sudo_user='postgres',
)

postgresql.role

Add/remove PostgreSQL roles.

postgresql.role(
    role, present=True, password=None, login=True, superuser=False, inherit=False,
    createdb=False, createrole=False, replication=False, connection_limit=None,
    postgresql_user=None, postgresql_password=None, postgresql_host=None,
    postgresql_port=None,
)

• role: name of the role
• present: whether the role should be present or absent
• password: the password for the role
• login: whether the role can login
• superuser: whether role will be a superuser
• inherit: whether the role inherits from other roles
• createdb: whether the role is allowed to create databases
• createrole: whether the role is allowed to create new roles
• replication: whether this role is allowed to replicate
• connection_limit: the connection limit for the role
• postgresql_*: global module arguments, see above

Updates:

pyinfra will not attempt to change existing roles - it will either create or drop roles, but not alter them (if the role exists this operation will make no changes).

Example:

postgresql.role(
    name='Create the pyinfra PostgreSQL role',
    role='pyinfra',
    password='somepassword',
    superuser=True,
    login=True,
    sudo_user='postgres',
)

postgresql.sql

Execute arbitrary SQL against PostgreSQL.

postgresql.sql(
    sql, database=None, postgresql_user=None, postgresql_password=None, postgresql_host=None,
    postgresql_port=None,
)

• sql: SQL command(s) to execute
• database: optional database to execute against
• postgresql_*: global module arguments, see above