infrastructure-provisioning/terraform/gcp/ssn-gke/main/modules/helm_charts/mongo.tf

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data "template_file" "mongo_values" {
  template = file("./modules/helm_charts/files/mongo_values.yaml")
  vars     = {
      mongo_root_pwd      = random_string.mongo_root_password.result
      mongo_db_username   = var.mongo_db_username
      mongo_dbname        = var.mongo_dbname
      mongo_db_pwd        = random_string.mongo_db_password.result
      mongo_image_tag     = var.mongo_image_tag
      mongo_service_port  = var.mongo_service_port
      mongo_node_port     = var.mongo_node_port
      load_balancer_ip    = data.kubernetes_service.nginx_service.load_balancer_ingress.0.ip
  }
}

resource "helm_release" "mongodb" {
    name       = "mongo-ha"
    chart      = "stable/mongodb"
    namespace  = kubernetes_namespace.dlab-namespace.metadata[0].name
    wait       = true
    values     = [
        data.template_file.mongo_values.rendered
    ]
    depends_on = [helm_release.nginx, kubernetes_secret.mongo_db_password_secret,
                  kubernetes_secret.mongo_root_password_secret]
}

data "kubernetes_service" "mongo_service" {
    metadata {
        name       = "${helm_release.mongodb.name}-mongodb"
        namespace  = kubernetes_namespace.dlab-namespace.metadata[0].name
    }
    depends_on = [helm_release.mongodb]
}