Create dynamic block in kubernetes container block using terraform - terraform

Question

I want to create a dynamic block that will able to dynamically create envs for docker container inside kubernetes using terraform.
I already tried creating a var of list and iterate over the envs but I am getting syntax error
Error: Reference to "count" in non-counted context
on kubernetes/kubernetes.main.tf line 68, in resource "kubernetes_deployment" "kube_deployment":
This is due to usage of count out of resource block.
I am looking now to create multiple envs like this
...
env {
name = "NAME"
value = "VALUE"
}
env {
name = "NAME"
value = "VALUE"
}
.
.
.
is there anyway to create this iteration or any hacks to create dynamic envs in container block. I understand that dynamic blocks are only inside resource, data, provider, and provisioner.
I was previously using helm to do this kind of templating but now I want to fully move to terraform.
I would love any directions to solve such issue.
Thanks
resource "kubernetes_deployment" "kube_deployment" {
metadata {
name = var.deployment_name
labels = {
App = var.deployment_name
}
}
spec {
replicas = 1
selector {
match_labels = {
App = var.deployment_name
}
}
template {
metadata {
labels = {
App = var.deployment_name
}
}
spec {
container {
image = var.container_image
name = var.container_name
env {
name = "NAME"
value = "VALUE"
}
port {
container_port = var.container_port
}
}
}
}
}
}

Answer 1

It was actually possible even if inside nested block of type resource, data, provider, and provisione..
here is a working code
resource "kubernetes_deployment" "kube_deployment" {
metadata {
name = var.deployment_name
labels = {
App = var.deployment_name
}
}
spec {
replicas = 1
selector {
match_labels = {
App = var.deployment_name
}
}
template {
metadata {
labels = {
App = var.deployment_name
}
}
spec {
container {
image = var.container_image
name = var.container_name
dynamic "env" {
for_each = var.envs
content {
name = env.value.name
value = env.value.value
}
}
port {
container_port = var.container_port
}
}
}
}
}
}