aws_db_instance_default_parameter_group.md

aws_db_instance_default_parameter_group

Disallow using default DB parameter group.

Example

resource "aws_db_instance" "mysql" {
  identifier             = "app"
  allocated_storage      = 50
  storage_type           = "gp2"
  engine                 = "mysql"
  engine_version         = "5.7.11"
  instance_class         = "db.m4.large"
  name                   = "app_db"
  port                   = 3306
  publicly_accessible    = false
  vpc_security_group_ids = ["${aws_security_group.mysql.id}"]
  db_subnet_group_name   = "app-subnet-group"
  parameter_group_name   = "default.mysql5.7" // default DB parameter group!
  multi_az               = true
}

$ tflint
1 issue(s) found:

Notice: "default.mysql5.7" is default parameter group. You cannot edit it. (aws_db_instance_default_parameter_group)

  on template.tf line 13:
  13:   parameter_group_name   = "default.mysql5.7" // default DB parameter group!
 

Why

You can modify parameter values in a custom DB parameter group, but you can't change the parameter values in a default DB parameter group.

How To Fix

Create a new parameter group, and change the parameter_group_name to that.