You should always strive to provide unique and hardened passwords when implementing roles. Note: The passwords provided to the above fictional roles are for demonstration purposes only. postgres=# CREATE ROLE nolog_user WITH PASSWORD 'pass1' ĬREATE ROLE postgres=# CREATE ROLE log_user WITH LOGIN PASSWORD 'pass2' Let’s look at two different users, one with the LOGIN privilege and one without. Again, resorting to the double quotes it is. postgres=# DROP ROLE $money_man Īnd another error with the $money_man role. The DROP ROLE command takes care of removing a role. I’m dropping you $money_man and starting afresh. I’m just not fond of the name structure of $money_man for a user. Even without double quotes, no error was returned. How about a special character in the middle of the name? postgres=# CREATE ROLE money$_man That worked, though probably not a good idea. “What about wrapping the name in double quotes?” Let’s see: postgres=# CREATE ROLE "$money_man" What went wrong there? Turns out, role names cannot start with anything other than a letter. Here’s a quick example: postgres=# CREATE ROLE $money_man Creating And Dropping RolesĬreating a role is relatively straightforward. Let’s look at some of these attributes in action for various configurations you can set up to get going. More details on this attribute with forthcoming examples.Ĭertain attributes have an explicit polar opposite named command and typically is the default when left unspecified. A role name with this attribute can be used in the client connection command. Since roles with this attribute bypass all permission checks, grant this privilege judiciously.ĬREATEDB – Allows the role to create databases.ĬREATEROLE – With this attribute, a role can issue the CREATE ROLE command. Matter of fact, this attribute is required to create another SUPERUSER role. Bottom line, roles with this attribute can create another SUPERUSER. SUPERUSER – A database SUPERUSER deserves a word of caution. However, a brief description is provided to clear up any confusion along with example uses. Attributes provide customization options, for permitted client authentication.Īttributes for roles through the CREATE ROLE command, are available in the official PostgreSQL documentation.īelow, are those attributes you will commonly assign when setting up a new role. Roles have the ability to grant membership to another role. PostgreSQL establishes the capacity for roles to assign privileges to database objects they own, enabling access and actions to those objects. Roles can represent groups of users in the PostgreSQL ecosystem as well. Permissions for database access within PostgreSQL are handled with the concept of a role, which is akin to a user. PostgreSQL’s Take on Roles – What is a ‘Role’ and how to Create one? Looking to configure roles for optimal performance and usage? Do your tables contain sensitive data, only accessible to privileged roles? Yet with the need to allow different roles to perform limited work? These questions and more will be exposed in this section. Database, Table, and Column level privileges and restrictions.In this section we will look at one of the key files and its settings, for client-side connections and communication with the server. You will learn about roles, role attributes, best practices for naming your roles, and common role setups. This blog post will provide practical ‘Tips and Tricks’ for a user or role, as we will come to know it, setup within PostgreSQL. Oftentimes, privileges are perfect on one front, yet configured incorrectly on the other. Typically new users are managed, in concert, within a couple of key areas in the environment. User management within PostgreSQL can be tricky.
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