CREATE AUDIT POLICY

Function

CREATE AUDIT POLICY creates a unified audit policy.

Precautions

Only user poladmin, user sysadmin, or the initial user can perform this operation.

The masking policy takes effect only after the security policy is enabled, that is, enable_security_policy is set to on. For details, see "Database Configuration > Database Security Management Policies > Unified Auditing" in the Security Hardening Guide.

Syntax

CreateAuditPolicy ::= CREATE AUDIT POLICY [ IF NOT EXISTS ] policy_name { { privilege_audit_clause | access_audit_clause } [ filter_group_clause ] [ ENABLE | DISABLE ] };

• privilege_audit_clause

  privilege_audit_clause ::= PRIVILEGES { DDL | ALL } [ ON LABEL ( resource_label_name [, ... ] ) ]

• access_audit_clause

  access_audit_clause ::= ACCESS { DML | ALL } [ ON LABEL ( resource_label_name [, ... ] ) ]

• filter_group_clause

  filter_group_clause ::= FILTER ON { ( FILTER_TYPE ( filter_value [, ... ] ) ) [, ... ] }

Parameter Description

• policy_name

  Specifies the audit policy name, which must be unique.

  Value range: a string. It must comply with the naming convention.

• DDL

  Specifies the operations that are audited within the database: CREATE, ALTER, DROP, ANALYZE, COMMENT, GRANT, REVOKE, SET, SHOW, LOGIN_ANY, LOGIN_FAILURE, LOGIN_SUCCESS, and LOGOUT.

• ALL

  Indicates all operations supported by the specified DDL statements in the database.

• resource_label_name

  Specifies the resource label name.

• DML

  Specifies the operations that are audited within the database: SELECT, COPY, DEALLOCATE, DELETE, EXECUTE, INSERT, PREPARE, REINDEX, TRUNCATE, and UPDATE.

• FILTER_TYPE

  Specifies the types of information to be filtered by the audit, including IP, APP, and ROLES.

• filter_value

  Indicates the detailed information to be filtered.

• ENABLE|DISABLE

  Enables or disables the unified audit policy. If ENABLE|DISABLE is not specified, ENABLE is used by default.

Examples

-- Create users dev_audit and bob_audit.
mogdb=# CREATE USER dev_audit PASSWORD 'dev@1234';
mogdb=# CREATE USER bob_audit password 'bob@1234';

-- Create table tb_for_audit.
mogdb=# CREATE TABLE tb_for_audit(col1 text, col2 text, col3 text);

-- Create a resource label.
mogdb=# CREATE RESOURCE LABEL adt_lb0 add TABLE(tb_for_audit);

-- Perform the CREATE operation on the database to create an audit policy.
mogdb=# CREATE AUDIT POLICY adt1 PRIVILEGES CREATE;

-- Perform the SELECT operation on the database to create an audit policy.
mogdb=# CREATE AUDIT POLICY adt2 ACCESS SELECT;

-- Create an audit policy to audit only the CREATE operations performed on the adt_lb0 resource by users dev_audit and bob_audit.
mogdb=# CREATE AUDIT POLICY adt3 PRIVILEGES CREATE ON LABEL(adt_lb0) FILTER ON ROLES(dev_audit, bob_audit);

-- Create an audit policy to audit only the SELECT, INSERT, and DELETE operations performed on the adt_lb0 resource by users dev_audit and bob_audit using client tools psql and gsql on the servers whose IP addresses are 10.20.30.40 and 127.0.0.0/24.
mogdb=# CREATE AUDIT POLICY adt4 ACCESS SELECT ON LABEL(adt_lb0), INSERT ON LABEL(adt_lb0), DELETE FILTER ON ROLES(dev_audit, bob_audit), APP(psql, gsql), IP('10.20.30.40', '127.0.0.0/24');