amazon web services - Conditional TLS cert management in terraform -


i'm trying create solution in terraform whereby can create tls certs using lets encrypt or provide own in s3 bucket. problem i'm facing can't seem conditionally run let's encrypt cert generation , upload steps.

how make last 2 steps conditional? thinking wrapping them in null_resource, how how make trigger based on external data?

any tips appreciated! guys.

n

resource "null_resource" "sync_certs" {   provisioner "local-exec" {     command = "mkdir -p ./tmp/certs"   }   provisioner "local-exec" {     command =  "aws s3 sync s3://xxxxxx/${var.root_domain_name}/${var.env_name} ./tmp/certs/ && ls -l ./tmp/certs/"   } }  resource "tls_private_key" "cert_private_key" {   count     = "${var.bank_count}"   algorithm = "rsa" }  resource "acme_registration" "reg" {   server_url = "${var.acme_url}"    account_key_pem = "${tls_private_key.generated_key.private_key_pem}"    email_address = "xxxxx" }  resource "acme_certificate" "certificate" {   count           = "${var.bank_count}"   server_url      = "${var.acme_url}"   account_key_pem = "${tls_private_key.generated_key.private_key_pem}"   common_name     = "${var.bank_names[count.index]}.${var.env_name}.${var.root_domain_name}"    dns_challenge {     provider = "route53"   }    registration_url = "${acme_registration.reg.id}" }  resource "local_file" "privkey" {   count       = "${var.bank_count}"   content     = "${tls_private_key.generated_key.private_key_pem}"   filename = "./tmp/certs/${var.bank_names[count.index]}.privkey.pem" }   resource "aws_s3_bucket_object" "tls_private_key_file" {   count       = "${var.bank_count}"   bucket      = "xxxx"   key         = "${var.root_domain_name}/${var.env_name}/${var.bank_names[count.index]}.privkey.pem"   source      = "./tmp/certs/${var.bank_names[count.index]}.privkey.pem"   content_type = "text/plain"   depends_on  = ["local_file.privkey"] }  }

not sure if understanding right, looking this?

define switch on/off variable first enable=true|false.

put count code in resource want control.

count = "${var.enable ? var.bank_count : 0}"

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