Support AWS RDS IAM Authentication for Redash database

[winebarrel]

What type of PR is this?

• Refactor
• Feature
• Bug Fix
• New Query Runner (Data Source)
• New Alert Destination
• Other

Description

This will enable the use of AWS RDS IAM authentication with Redash Database.
see https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/UsingWithRDS.IAMDBAuth.html

Using IAM authentication allows you to connect to the database more securely than with password authentication.

How is this tested?

• Unit tests (pytest, jest)
• E2E Tests (Cypress)
• Manually
• N/A

I added the following settings and confirmed that I could connect to the RDS for testing.

• compose.yaml

  # REDASH_DATABASE_URL: "postgresql://postgres@postgres/postgres"
  REDASH_DATABASE_URL: "postgresql://iam_user@database-1.cluster-xxx.ap-northeast-1.rds.amazonaws.com/postgres"
  AWS_DEFAULT_REGION: ap-northeast-1
  REDASH_DATABASE_AWS_IAM_AUTH: "true"

• .env

# NOTE: It is not a required environment variable.
AWS_ACCESS_KEY_ID=...
AWS_SECRET_ACCESS_KEY=...

postgres=> select * from pg_stat_activity where usename = 'iam_user';
-[ RECORD 1 ]----+------------------------------
datid            | 5
datname          | postgres
pid              | 4432
leader_pid       |
usesysid         | 16455
usename          | iam_user
application_name |
client_addr      | xxx.xxx.xxx.xxx
client_hostname  |
client_port      | 55457
backend_start    | 2026-04-17 04:31:30.253999+00
xact_start       |
query_start      | 2026-04-17 04:34:25.004999+00
state_change     | 2026-04-17 04:34:25.005079+00
wait_event_type  | Client
wait_event       | ClientRead
state            | idle
backend_xid      |
backend_xmin     |
query_id         |
query            | ROLLBACK
backend_type     | client backend
-[ RECORD 2 ]----+------------------------------
datid            | 5
...

Related Tickets & Documents

• Support AWS RDS IAM Authentication for Redash database #7302

Mobile & Desktop Screenshots/Recordings (if there are UI changes)

N/A

[cubic-dev-ai]

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