Manage user accounts

KubeBlocks offers a variety of services to enhance the usability, availability, and observability of database clusters. Different components require user accounts with different permissions to create connections.

Steps

• Create a user account

  kbcli cluster create-account <clustername> --name <username> --password <pwd> 

• Grant a role to a user

  kbcli cluster grant-role  <clustername> --name <username> --role <rolename>

  KubeBlocks provides three role levels of permission.

  • Superuser: with all permissions.
  • ReadWrite: read and write.
  • ReadOnly: read only.

  For different database engines, the detailed permission are varied. Check the table below.

  Role	MySQL	PostgreSQL	Redis
  Superuser	GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, RELOAD, SHUTDOWN, PROCESS, FILE, REFERENCES, INDEX, ALTER, SHOW DATABASES, SUPER, CREATE TEMPORARY TABLES, LOCK TABLES, EXECUTE, REPLICATION SLAVE, REPLICATION CLIENT, CREATE VIEW, SHOW VIEW, CREATE ROUTINE, ALTER ROUTINE, CREATE USER, EVENT, TRIGGER, CREATE TABLESPACE, CREATE ROLE, DROP ROLE ON * a user	ALTER USER WITH SUPERUSER	+@ALL allkeys
  ReadWrite	GRANT SELECT, INSERT, DELETE ON * TO a user	GRANT pg_write_all_data TO a user	-@ALL +@Write +@READ allkeys
  ReadOnly	GRANT SELECT, SHOW VIEW ON * TO a user	GRANT pg_read_all_data TO a user	-@ALL +@READ allkeys

• Check role level of a user account

  kbcli cluster describe-account <clustername> --name <username>

• Revoke role from a user account

  kbcli cluster revoke-role <clustername> --name <name> --role <rolename> 

• List all user accounts

  kbcli cluster list-accounts  <clustername>  
  note

  For security reasons, the list-accounts command does not show all accounts. Accounts with high privilege such as operational accounts and superuser accounts that meet certain rules are hidden. Refer to the table below to view the hidden accounts.

  Database	Hidden Accounts
  MySQL	root kb* Localhost = ''
  PostgreSQL	Postgres kb*

• Delete a user account

  kbcli cluster delete-account <clustername> --name <username>