chore: small improvements

terraform/.terraform.lock.hcl

@@ -0,0 +1,16 @@
+# This file is maintained automatically by "terraform init".
+# Manual edits may be lost in future updates.
+
+provider "registry.terraform.io/dmacvicar/libvirt" {
+  version = "0.8.3"
+  hashes = [
+    "h1:Tttxr3E9O75MM+dDmq5sYHQEw29PwtIj+XDj/5drdfE=",
+  ]
+}
+
+provider "registry.terraform.io/hashicorp/template" {
+  version = "2.2.0"
+  hashes = [
+    "h1:94qn780bi1qjrbC3uQtjJh3Wkfwd5+tTtJHOb7KTg9w=",
+  ]
+}

terraform/configs/cloud-init/client.yaml.tpl

@@ -30,16 +30,42 @@ write_files:
     append: true
     encoding: b64
     content: ${hosts_file}
+  - path: /etc/networkd-dispatcher/routable.d/10-disable-offloading
+    owner: root:root
+    permissions: "0755"
+    content: |
+      #!/bin/bash
+      for IF in $(networkctl list --no-legend | awk '/ routable /{print $2}'); do
+        /usr/sbin/ethtool -K "$IF" \
+          rx off tx off sg off tso off ufo off gso off gro off lro off \
+          ntuple off rxhash off rx-gro-hw off || true
+      done
+  - path: /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg
+    permissions: '0644'
+    content: |
+      network: {config: disabled}
+  - path: /etc/netplan/01-static.yaml
+    owner: root:root
+    permissions: '0644'
+    content: |
+      network:
+        version: 2
+        renderer: networkd
+        ethernets:
+          enp1s0:
+            dhcp4: false
+            addresses: [${ip}]
+            gateway4: ${gateway}
+            nameservers:
+              addresses: ${nameservers}
+
+modules:
+  - tcp_bbr
+  - sch_netem
 
 runcmd:
-  - |
+  - rm -f /etc/netplan/50-cloud-init.yaml
-    cat << 'EOF' > /etc/network/if-up.d/disable-offload
+  - netplan generate && netplan apply
-    #!/bin/bash
-    ethtool -K enp1s0 rx off tx off sg off tso off ufo off gso off gro off lro off ntuple off rxhash off rx-gro-hw off
-    EOF
-    chmod +x /etc/network/if-up.d/disable-offload
-  - /etc/network/if-up.d/disable-offload
-  - modprobe tcp_bbr sch_netem
 
   - |
     wget https://github.com/stunnel/static-curl/releases/download/8.14.1/curl-linux-x86_64-dev-8.14.1.tar.xz \

terraform/configs/cloud-init/server.yaml.tpl

@@ -30,33 +30,59 @@ packages:
 write_files:
   - path: /etc/nginx/nginx.conf
     owner: root:root
-    permissions: '0644'
+    permissions: "0644"
     encoding: b64
     content: ${nginx_conf}
   - path: /etc/default/tftpd-hpa
     owner: root:root
-    permissions: '0644'
+    permissions: "0644"
     encoding: b64
     content: ${tftpd_conf}
   - path: /etc/caddy/Caddyfile
     owner: root:root
-    permissions: '0644'
+    permissions: "0644"
     encoding: b64
     content: ${caddy_conf}
   - path: /etc/hosts
     append: true
     encoding: b64
     content: ${hosts_file}
+  - path: /etc/networkd-dispatcher/routable.d/10-disable-offloading
+    owner: root:root
+    permissions: "0755"
+    content: |
+      #!/bin/bash
+      for IF in $(networkctl list --no-legend | awk '/ routable /{print $2}'); do
+        /usr/sbin/ethtool -K "$IF" \
+          rx off tx off sg off tso off ufo off gso off gro off lro off \
+          ntuple off rxhash off rx-gro-hw off || true
+      done
+  - path: /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg
+    permissions: '0644'
+    content: |
+      network: {config: disabled}
+  - path: /etc/netplan/01-static.yaml
+    owner: root:root
+    permissions: '0644'
+    content: |
+      network:
+        version: 2
+        renderer: networkd
+        ethernets:
+          enp1s0:
+            dhcp4: false
+            addresses: [${ip}]
+            gateway4: ${gateway}
+            nameservers:
+              addresses: ${nameservers}
+
+modules:
+  - tcp_bbr
+  - sch_netem
 
 runcmd:
-  - |
+  - rm -f /etc/netplan/50-cloud-init.yaml
-    cat << 'EOF' > /etc/network/if-up.d/disable-offload
+  - netplan generate && netplan apply
-    #!/bin/bash
-    ethtool -K enp1s0 rx off tx off sg off tso off ufo off gso off gro off lro off ntuple off rxhash off rx-gro-hw off
-    EOF
-    chmod +x /etc/network/if-up.d/disable-offload
-  - /etc/network/if-up.d/disable-offload
-  - modprobe tcp_bbr sch_netem
 
   - |
     dd if=/dev/random of=/var/www/1MB.file bs=1024K count=1

terraform/main.tf

@@ -16,9 +16,11 @@ locals {
 
   image_filename = "noble-server-cloudimg-amd64.img" # да, можно было и ссылку, но я не хочу, чтобы кто-то качал его
 
-  client_ip    = "10.6.6.10"
+  client_ip    = "10.6.6.10/24"
-  server_ip    = "10.6.6.20"
+  server_ip    = "10.6.6.20/24"
   network_cidr = "10.6.6.0/24"
+  gateway      = "10.6.6.1"
+  nameservers  = "1.1.1.1"
   mtu          = 1500
 
   cpu_per_node = 4
@@ -30,7 +32,7 @@ provider "libvirt" {
 }
 
 resource "libvirt_network" "default" {
-  name = "task5_default"
+  name = "net_research_default"
 
   mode      = "nat"
   addresses = [local.network_cidr]
@@ -41,32 +43,23 @@ resource "libvirt_network" "default" {
     local_only = false
 
     forwarders {
-      address = "1.1.1.1"
+      address = local.nameservers
-    }
-
-    hosts {
-      hostname = "client"
-      ip       = local.client_ip
-    }
-    hosts {
-      hostname = "server"
-      ip       = local.server_ip
     }
   }
 }
 
 resource "libvirt_volume" "ubuntu_noble" {
-  name   = "task5_ubuntu_noble"
+  name   = "net_research_ubuntu_noble"
   source = "${local.image_pool_folder}/${local.image_filename}"
 }
 
 resource "libvirt_volume" "client_image" {
-  name           = "task5_client_image"
+  name           = "net_research_client_image"
   base_volume_id = libvirt_volume.ubuntu_noble.id
 }
 
 resource "libvirt_volume" "server_image" {
-  name           = "task5_server_image"
+  name           = "net_research_server_image"
   base_volume_id = libvirt_volume.ubuntu_noble.id
 }
 
@@ -74,6 +67,9 @@ data "template_file" "client_user_data" {
   template = file("${path.module}/configs/cloud-init/client.yaml.tpl")
   vars = {
     hosts_file  = base64encode(file("${path.module}/configs/hosts"))
+    ip          = local.client_ip
+    gateway     = local.gateway
+    nameservers = local.nameservers
   }
 }
 
@@ -84,14 +80,16 @@ data "template_file" "server_user_data" {
     tftpd_conf  = base64encode(file("${path.module}/configs/tftpd/tftpd-hpa"))
     caddy_conf  = base64encode(file("${path.module}/configs/caddy/Caddyfile"))
     hosts_file  = base64encode(file("${path.module}/configs/hosts"))
+    ip          = local.server_ip
+    gateway     = local.gateway
+    nameservers = local.nameservers
   }
 }
 
 module "client" {
   source         = "./modules/instance"
-  name           = "task5_client"
+  name           = "net_research_client"
   network_id     = libvirt_network.default.id
-  ip             = local.client_ip
   volume_base_id = libvirt_volume.ubuntu_noble.id
   user_data      = data.template_file.client_user_data.rendered
   vcpu           = local.cpu_per_node
@@ -100,9 +98,8 @@ module "client" {
 
 module "server" {
   source         = "./modules/instance"
-  name           = "task5_server"
+  name           = "net_research_server"
   network_id     = libvirt_network.default.id
-  ip             = local.server_ip
   volume_base_id = libvirt_volume.ubuntu_noble.id
   user_data      = data.template_file.server_user_data.rendered
   vcpu           = local.cpu_per_node

terraform/modules/instance/main.tf

@@ -8,7 +8,6 @@ terraform {
 
 variable "name" {}
 variable "network_id" {}
-variable "ip" {}
 variable "volume_base_id" {}
 variable "user_data" {}
 variable "vcpu" {}
@@ -36,7 +35,6 @@ resource "libvirt_domain" "this" {
 
   network_interface {
     network_id = var.network_id
-    addresses  = [var.ip]
   }
 
   arch    = "x86_64"