Host rpc node in ecs (#391)

.gitignore

@@ -52,4 +52,5 @@ coverage.txt
 go.sum
 cicd/devnet/terraform/.terraform*
 cicd/devnet/tmp
-.env
+.env
+cicd/devnet/terraform/node-config.json

.travis.yml

@@ -171,6 +171,7 @@ jobs:
           echo "Force deploy xdc-$i"
           aws ecs update-service --region ap-southeast-2 --cluster devnet-xdcnode-cluster --service ecs-service-xdc$i --force-new-deployment --no-cli-pager;
         done
+        aws ecs update-service --region ap-southeast-1 --cluster devnet-xdcnode-cluster --service ecs-service-rpc1 --force-new-deployment --no-cli-pager;
 
   - stage: (Devnet) Send Deployment Notification
     if: branch = dev-upgrade AND type = push AND tag IS blank

cicd/devnet/terraform/.env

@@ -10,4 +10,4 @@ eu_west_1_end=72
 
 # Sydney
 ap_southeast_2_start=73
-ap_southeast_2_end=110
+ap_southeast_2_end=108

cicd/devnet/terraform/main.tf

@@ -23,7 +23,6 @@ module "us-east-2" {
   devnetNodeKeys = local.devnetNodeKeys["us-east-2"]
   logLevel = local.logLevel
   devnet_xdc_ecs_tasks_execution_role_arn = aws_iam_role.devnet_xdc_ecs_tasks_execution_role.arn
-
   providers = {
     aws = aws.us-east-2
   }
@@ -40,7 +39,6 @@ module "eu-west-1" {
   devnetNodeKeys = local.devnetNodeKeys["eu-west-1"]
   logLevel = local.logLevel
   devnet_xdc_ecs_tasks_execution_role_arn = aws_iam_role.devnet_xdc_ecs_tasks_execution_role.arn
-
   providers = {
     aws = aws.eu-west-1
   }
@@ -57,8 +55,27 @@ module "ap-southeast-2" {
   devnetNodeKeys = local.devnetNodeKeys["ap-southeast-2"]
   logLevel = local.logLevel
   devnet_xdc_ecs_tasks_execution_role_arn = aws_iam_role.devnet_xdc_ecs_tasks_execution_role.arn
-
   providers = {
     aws = aws.ap-southeast-2
   }
 }
+
+# WARNING: APSE-1 will only be used to host rpc node
+# Workaround to avoid conflicts with existing ecs cluster in existing regions
+provider "aws" {
+  alias = "ap-southeast-1"
+  region  = "ap-southeast-1"
+}
+
+module "ap-southeast-1-rpc" {
+  source = "./module/region"
+  region = "ap-southeast-1"
+  devnetNodeKeys = local.rpcNodeKeys
+  enableFixedIp = true
+  logLevel = local.logLevel
+  devnet_xdc_ecs_tasks_execution_role_arn = aws_iam_role.devnet_xdc_ecs_tasks_execution_role.arn
+
+  providers = {
+    aws = aws.ap-southeast-1
+  }
+}

cicd/devnet/terraform/module/region/ecs.tf

@@ -56,15 +56,17 @@ data "aws_ecs_task_definition" "devnet_ecs_task_definition" {
   task_definition = aws_ecs_task_definition.devnet_task_definition_group[each.key].family
 }
 
+# ECS cluster
 resource "aws_ecs_cluster" "devnet_ecs_cluster" {
-  name = "devnet-xdcnode-cluster"
-  tags = {
+  name    = "devnet-xdcnode-cluster"
+  tags    = {
     Name        = "TfDevnetEcsCluster"
   }
 }
 
+
 resource "aws_ecs_service" "devnet_ecs_service" {
-  for_each = var.devnetNodeKeys
+  for_each             = var.enableFixedIp ? {} : var.devnetNodeKeys
   name                 = "ecs-service-${each.key}"
   cluster              = aws_ecs_cluster.devnet_ecs_cluster.id
   task_definition      = "${aws_ecs_task_definition.devnet_task_definition_group[each.key].family}:${max(aws_ecs_task_definition.devnet_task_definition_group[each.key].revision, data.aws_ecs_task_definition.devnet_ecs_task_definition[each.key].revision)}"

cicd/devnet/terraform/module/region/main.tf

@@ -72,6 +72,14 @@ resource "aws_default_security_group" "devnet_xdcnode_security_group" {
     cidr_blocks = ["0.0.0.0/0"]
   }
 
+  ingress {
+    description = "rpc port"
+    from_port   = 8545
+    to_port     = 8545
+    protocol    = "tcp"
+    cidr_blocks = ["10.0.0.0/16"]
+  }
+
   egress {
     from_port   = 0
     to_port     = 0

cicd/devnet/terraform/module/region/rpc.tf

@@ -0,0 +1,104 @@
+# Allocate an Elastic IP for the NLB
+resource "aws_eip" "nlb_eip" {
+  domain = "vpc"
+}
+
+
+# Create a Network Load Balancer
+resource "aws_lb" "rpc_node_nlb" {
+  count = var.enableFixedIp ? 1 : 0
+  name               = "rpc-node-nlb"
+  load_balancer_type = "network"
+
+  enable_deletion_protection = false
+
+  subnet_mapping {
+    subnet_id     = aws_subnet.devnet_subnet.id
+    allocation_id = aws_eip.nlb_eip.id
+  }
+}
+
+# Listener and Target Group for the rpc node container
+resource "aws_lb_target_group" "rpc_node_tg_8545" {
+  count = var.enableFixedIp ? 1 : 0
+  name     = "rpc-node-tg"
+  port     = 8545
+  protocol = "TCP"
+  vpc_id   = aws_vpc.devnet_vpc.id
+  target_type = "ip"
+}
+
+resource "aws_lb_listener" "rpc_node_listener_8545" {
+  count = var.enableFixedIp ? 1 : 0
+  load_balancer_arn = aws_lb.rpc_node_nlb[0].arn
+  port              = 8545
+  protocol          = "TCP"
+
+  default_action {
+    type             = "forward"
+    target_group_arn = aws_lb_target_group.rpc_node_tg_8545[0].arn
+  }
+}
+
+resource "aws_ecs_service" "devnet_rpc_node_ecs_service" {
+  for_each             = var.enableFixedIp ? var.devnetNodeKeys : {}
+  name                 = "ecs-service-${each.key}"
+  cluster              = aws_ecs_cluster.devnet_ecs_cluster.id
+  task_definition      = "${aws_ecs_task_definition.devnet_task_definition_group[each.key].family}:${max(aws_ecs_task_definition.devnet_task_definition_group[each.key].revision, data.aws_ecs_task_definition.devnet_ecs_task_definition[each.key].revision)}"
+  launch_type          = "FARGATE"
+  scheduling_strategy  = "REPLICA"
+  desired_count        = 1
+  force_new_deployment = true
+  deployment_minimum_healthy_percent = 0
+  deployment_maximum_percent = 100
+
+  network_configuration {
+    subnets          = [aws_subnet.devnet_subnet.id]
+    assign_public_ip = true
+    security_groups = [
+      aws_default_security_group.devnet_xdcnode_security_group.id
+    ]
+  }
+
+  deployment_circuit_breaker {
+    enable = true
+    rollback = false
+  }
+  
+  load_balancer {
+    target_group_arn = aws_lb_target_group.rpc_node_tg_8545[0].arn
+    container_name   = "tfXdcNode"
+    container_port   = 8545
+  }
+
+  depends_on = [
+    aws_lb_listener.rpc_node_listener_8545
+  ]
+
+  tags = {
+    Name        = "TfDevnetRpcNodeEcsService-${each.key}"
+  }
+}
+
+# Target Group for port 30303
+resource "aws_lb_target_group" "rpc_node_tg_30303" {
+  count = var.enableFixedIp ? 1 : 0
+  name     = "rpc-node-tg-30303"
+  port     = 30303
+  protocol = "TCP"
+  vpc_id   = aws_vpc.devnet_vpc.id
+  target_type = "ip"
+}
+
+# Listener for port 30303
+resource "aws_lb_listener" "rpc_node_listener_30303" {
+  count = var.enableFixedIp ? 1 : 0
+  load_balancer_arn = aws_lb.rpc_node_nlb[0].arn
+  port              = 30303
+  protocol          = "TCP"
+
+  default_action {
+    type             = "forward"
+    target_group_arn = aws_lb_target_group.rpc_node_tg_30303[0].arn
+  }
+}

cicd/devnet/terraform/module/region/variables.tf

@@ -16,4 +16,10 @@ variable "logLevel" {
 variable "devnet_xdc_ecs_tasks_execution_role_arn" {
   description = "aws iam role resource arn"
   type        = string
+}
+
+variable "enableFixedIp" {
+  description = "a flag to indicate whether fixed ip should be associated to the nodes. This is used for RPC node"
+  type = bool
+  default = false
 }

cicd/devnet/terraform/variables.tf

@@ -5,7 +5,7 @@ locals {
     {{Name of the node, in a pattern of 'xdc'+ number. i.e xdc50}}: {
       pk: {{Value of the node private key}},
       ... any other configuration we want to pass.
-    }
+    }    
     Note: No `n` is allowed in the node name
     **/
     predefinedNodesConfig = jsondecode(data.aws_s3_object.devnet_xdc_node_config.body)
@@ -39,6 +39,8 @@ locals {
       for r in local.regions : 
         r.name => { for i in local.keyNames[r.name]: i => local.predefinedNodesConfig[i] }
     }
+    
+    rpcNodeKeys = { "rpc1": local.predefinedNodesConfig["rpc1"]} // we hardcode the rpc to a single node for now
 
     s3BucketName = "tf-devnet-bucket"
 }