nodes.tf: rename to node.tf, and module to node

Signed-off-by: Jakub Sokołowski <jakub@status.im>

node.tf

@@ -1,4 +1,4 @@
-module "hosts" {
+module "node" {
   source = "github.com/status-im/infra-tf-multi-provider"
 
   /* node type */
@@ -8,20 +8,20 @@ module "hosts" {
   domain = var.domain
 
   /* scaling */
-  host_count = local.ws["hosts_count"]
+  host_count = local.ws["node_count"]
 
   /* instance sizes */
-  do_type = local.ws["do_type"] /* DigitalOcean */
-  ac_type = local.ws["ac_type"] /* Alibaba Cloud */
-  gc_type = local.ws["gc_type"] /* Google Cloud */
+  do_type = local.ws["node_do_type"] /* DigitalOcean */
+  ac_type = local.ws["node_ac_type"] /* Alibaba Cloud */
+  gc_type = local.ws["node_gc_type"] /* Google Cloud */
 
   /* data volumes */
-  ac_data_vol_size = local.ws["data_volume_size"]
-  do_data_vol_size = local.ws["data_volume_size"]
-  gc_data_vol_size = local.ws["data_volume_size"]
-  /* fix for volume size */
-  ac_data_vol_type = local.ws["ac_data_volume_type"]
+  ac_data_vol_size = local.ws["node_data_vol_size"]
+  do_data_vol_size = local.ws["node_data_vol_size"]
+  gc_data_vol_size = local.ws["node_data_vol_size"]
 
+  /* fix for volume size */
+  ac_data_vol_type = local.ws["node_ac_data_vol_type"]
 
   /* firewall */
   open_tcp_ports = [

workspaces.tf

@@ -13,20 +13,20 @@ locals {
       env   = "status"
       stage = terraform.workspace
 
-      /* scaling */
-      hosts_count = 1
-      data_volume_size = 40
-      ac_data_volume_type = "cloud_ssd"
-      do_type = "s-1vcpu-2gb"        /* DigitalOcean */
-      ac_type = "ecs.t5-lc1m2.small" /* Alibaba Cloud */
-      gc_type = "g1-small"           /* Google Cloud */
+      /* Waku nodes */
+      node_count   = 1
+      node_do_type = "s-1vcpu-2gb"        /* DigitalOcean */
+      node_ac_type = "ecs.t5-lc1m2.small" /* Alibaba Cloud */
+      node_gc_type = "g1-small"           /* Google Cloud */
+      node_ac_data_vol_type = "cloud_ssd"
+      node_data_vol_size = 40
     }
 
     # Inherits defaults.
-    test = { hosts_count = 1 }
+    test = {}
     prod = {
-      hosts_count = 2
-      data_volume_size = 350
+      node_count = 2
+      node_data_vol_size = 350
     }
   }
 }