Invalid value for master_password (cannot contain [/@"' ])

[leondkr]

Description

When creating a new Redshift cluster, I am facing the following error when using the attribute create_random_password = true

│ Error: invalid value for master_password (cannot contain [/@"' ])
│ 
│   with module.redshift_dwh.aws_redshift_cluster.this[0],
│   on .terraform/modules/redshift_dwh/main.tf line 62, in resource "aws_redshift_cluster" "this":
│   62:   master_password                  = var.snapshot_identifier != null ? null : local.master_password
│ 
╵

Versions

• Module version [Required]: 4.0.2

• Terraform version: v1.2.6

• Provider version(s): registry.terraform.io/hashicorp/aws v4.33.0

Reproduction Code [Required]

module "redshift" {
  source  = "terraform-aws-modules/redshift/aws"
  version = "4.0.2"

  node_type = "dc2.large"

  master_username        = "redshift"
  create_random_password = true

Expected behavior

The attribute create_random_password = true helps creating the password automatically.

Actual behavior

The randomized password has special characters that Redshift does not allow for creation.

Additional context

For workaround, I have done as follows

• added a custom random_password resource to remove special characters.
• set create_random_password = false
• manually set master_password with reference to my custom random_password resource