Terraform meta argument: count
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↑ https://registry.terraform.io/modules/terraform-aws-modules/s3-bucket/aws/latest
count = length(var.subnet_ids)count = var.vpc_cidr_block != null ? 1 : 0count = var.istest == true ? 3 : 0
Terraform does not allow to use count inside module block.[1]
resource "aws_instance" "dev" {
ami = "ami-082b5a644766e0e6f"
instance_type = "t2.micro"
count = 2
}
resource "aws_instance" "your_new_instance_in_test" {
ami = "ami-082b5a644766e0e6f"
instance_type = "t2.micro"
count = var.istest == true ? 3 : 0
}
resource "aws_instance" "your_new_conditional_instance {
count = var.your_env == "PRE" ? 1 : 0
ami = "ami-082b5a644766e0e6f"
instance_type = "t2.micro"
}
variable "elb_names" {
type = list
default = ["dev-loadbalancer", "stage-loadbalanacer","prod-loadbalancer"]
}
resource "aws_iam_user" "lb" {
name = var.elb_names[count.index]
count = 2
path = "/system/"
}
resource "aws_ecs_service" "your_service" {
count = var.your_env_name == "PROD" ? 1 : 0
.../...
task_definition = "${aws_ecs_task_definition.dashboards_task[0].family}:${aws_ecs_task_definition.dashboards_task[0].revision}"
.../...
}
Related
See also
- Terraform functions, Terraform collection functions:
tolist,toset,length,sum,file,join,depends_on,zipmap,replace,lookup,read files,concat,merge, templatefile, for_each, format, element, slice, try, filebase64, upper, filemd5, coalesce, formatlist, flatten - Terraform: Meta-Arguments:
count,depends_on,lifecycle: [ prevent_destroy | ignore_changes ] - Terraform, OpenTofu, Terrakube.org, Installation, Terraform AWS, Terraform GCP, Terraform commands, Terraform Cloud, Terraform Enterprise (TFE), HCL, HIL, meta-arguments, providers, modules, resource, provisioners, data sources, backends: remote backends, examples, configuration files, state files, variables, types, Terraform Registry, conditionals:
depends_on, functions, Blocks, dynamic blocks, errors, Terragrunt, Terraformer, Terratest, Terraform certifications, Terraform map type, Terraform Associate, Terraform: list type,TF_VAR_, TF_LOG, Terraform provider versioning, Terraform Style Conventions, Required version, Terraform plugin, Terraform Named Values, tags, Changelog,tfsec, tflint, Operators, Expressions:for, splat, Debugging, Namespaces, Terraform Landing Zones, CDKTF, Atmos
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