From a1ef6b759b012bb1bfcae783532507728730f448 Mon Sep 17 00:00:00 2001
From: Damien <damienbroka@mailbox.org>
Date: Fri, 9 Sep 2022 09:08:37 +0100
Subject: [PATCH] infra: migrate the builder to x86

---
 terraform/modules/shuttle/locals.tf           |  2 +-
 terraform/modules/shuttle/service.tf          | 24 -----
 terraform/modules/shuttle/service_x86.tf      | 98 +++++++++++++++++++
 .../systemd/system/opt-shuttle.mount.tftpl    |  5 +-
 4 files changed, 101 insertions(+), 28 deletions(-)
 create mode 100644 terraform/modules/shuttle/service_x86.tf

diff --git a/terraform/modules/shuttle/locals.tf b/terraform/modules/shuttle/locals.tf
index 4d9a750d3..2240a88e5 100644
--- a/terraform/modules/shuttle/locals.tf
+++ b/terraform/modules/shuttle/locals.tf
@@ -3,6 +3,6 @@ data "aws_caller_identity" "current" {}
 locals {
   account_id               = data.aws_caller_identity.current.account_id
   data_dir                 = "/opt/shuttle"
-  docker_backend_image     = "public.ecr.aws/shuttle/backend"
+  docker_backend_image     = "public.ecr.aws/shuttle/api"
   docker_provisioner_image = "public.ecr.aws/shuttle/provisioner"
 }
diff --git a/terraform/modules/shuttle/service.tf b/terraform/modules/shuttle/service.tf
index 67c02aec9..a8d88db67 100644
--- a/terraform/modules/shuttle/service.tf
+++ b/terraform/modules/shuttle/service.tf
@@ -57,30 +57,6 @@ EOF
   }
 }
 
-resource "aws_lb_target_group_attachment" "api" {
-  target_group_arn = aws_lb_target_group.api.arn
-  target_id        = aws_instance.backend.id
-  port             = var.api_container_port
-}
-
-resource "aws_lb_target_group_attachment" "user" {
-  target_group_arn = aws_lb_target_group.user.arn
-  target_id        = aws_instance.backend.id
-  port             = var.proxy_container_port
-}
-
-resource "aws_lb_target_group_attachment" "postgres" {
-  target_group_arn = aws_lb_target_group.postgres.arn
-  target_id        = aws_instance.backend.id
-  port             = var.postgres_container_port
-}
-
-resource "aws_lb_target_group_attachment" "mongodb" {
-  target_group_arn = aws_lb_target_group.mongodb.arn
-  target_id        = aws_instance.backend.id
-  port             = var.mongodb_container_port
-}
-
 data "aws_ami" "ubuntu" {
   most_recent = true
 
diff --git a/terraform/modules/shuttle/service_x86.tf b/terraform/modules/shuttle/service_x86.tf
new file mode 100644
index 000000000..77c51e019
--- /dev/null
+++ b/terraform/modules/shuttle/service_x86.tf
@@ -0,0 +1,98 @@
+resource "aws_network_interface" "backend_x86" {
+  subnet_id = aws_subnet.backend_b.id
+}
+
+resource "aws_eip" "backend_x86" {
+  vpc               = true
+  network_interface = aws_network_interface.backend_x86.id
+}
+
+resource "aws_lb_target_group_attachment" "api" {
+  target_group_arn = aws_lb_target_group.api.arn
+  target_id        = aws_instance.backend_x86.id
+  port             = var.api_container_port
+}
+
+resource "aws_lb_target_group_attachment" "user" {
+  target_group_arn = aws_lb_target_group.user.arn
+  target_id        = aws_instance.backend_x86.id
+  port             = var.proxy_container_port
+}
+
+resource "aws_lb_target_group_attachment" "postgres" {
+  target_group_arn = aws_lb_target_group.postgres.arn
+  target_id        = aws_instance.backend_x86.id
+  port             = var.postgres_container_port
+}
+
+resource "aws_lb_target_group_attachment" "mongodb" {
+  target_group_arn = aws_lb_target_group.mongodb.arn
+  target_id        = aws_instance.backend_x86.id
+  port             = var.mongodb_container_port
+}
+
+data "aws_ami" "ubuntu_x86" {
+  most_recent = true
+
+  filter {
+    name   = "name"
+    values = ["ubuntu/images/hvm-ssd/ubuntu-focal-20.04-amd64-server-20220511"]
+  }
+
+  filter {
+    name   = "virtualization-type"
+    values = ["hvm"]
+  }
+
+  owners = ["099720109477"] # Canonical
+}
+
+resource "aws_ebs_volume" "backend_x86" {
+  availability_zone = "eu-west-2b"
+  type              = "gp3"
+  size              = 512
+
+  tags = {
+    Name = "backend_x86"
+  }
+}
+
+resource "aws_volume_attachment" "ebs_att" {
+  device_name = "/dev/sdh"
+  volume_id   = aws_ebs_volume.backend_x86.id
+  instance_id = aws_instance.backend_x86.id
+}
+
+resource "aws_instance" "backend_x86" {
+  ami           = data.aws_ami.ubuntu_x86.id
+  instance_type = "c6i.4xlarge"
+
+  monitoring = true
+
+  availability_zone = "eu-west-2b"
+
+  iam_instance_profile = aws_iam_instance_profile.backend.id
+
+  metadata_options {
+    http_endpoint = "enabled"
+    # Our api runs in a container and therefore has an extra hop limit
+    # https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instancedata-data-retrieval.html#imds-considerations
+    http_put_response_hop_limit = 2
+    http_tokens                 = "required"
+  }
+
+  network_interface {
+    network_interface_id = aws_network_interface.backend_x86.id
+    device_index         = 0
+  }
+
+  root_block_device {
+    delete_on_termination = true
+    encrypted             = false
+    volume_size           = 64
+    volume_type           = "gp2"
+  }
+
+  user_data                   = data.cloudinit_config.backend.rendered
+  user_data_replace_on_change = false
+}
diff --git a/terraform/modules/shuttle/systemd/system/opt-shuttle.mount.tftpl b/terraform/modules/shuttle/systemd/system/opt-shuttle.mount.tftpl
index 135ccc97a..3a6fff2e9 100644
--- a/terraform/modules/shuttle/systemd/system/opt-shuttle.mount.tftpl
+++ b/terraform/modules/shuttle/systemd/system/opt-shuttle.mount.tftpl
@@ -2,10 +2,9 @@
 Description=mounts the user data
 
 [Mount]
-What=${dns_name}:/
+What=/dev/nvme1n1
 Where=${data_dir}
-Type=nfs
-Options=nfsvers=4.1,rsize=1048576,wsize=1048576,hard,timeo=600,retrans=2,noresvport
+Type=ext4
 
 [Install]
 WantedBy=multi-user.target