VM Receives Random IP Address Instead of Specified Static IP

[pakosaan]

Expected behavior

I want static ip mentioned in vagrantfile

Actual behavior

I get random ip address

Reproduction information

Vagrant version

2.4.0 and 2.4.1

Host operating system

Fedora 41 Workstation

Guest operating system

fedora-41-cloud-base, ubuntu-24.04, fedora-40-cloud-base

Steps to reproduce

1.vagrant up
2.vagrant ssh vm-1
3.ip a

Vagrantfile

# -*- mode: ruby -*-
# vi: set ft=ruby :
# Vagrant configuration for setting up multiple VMs with flexible activation

Vagrant.configure("2") do |config|
  config.vagrant.plugins = "vagrant-libvirt"

  # List of VM names to activate
  ACTIVE_VMS = ["vm-1", "vm-2", "vm-3"]

  # Define settings for each VM in a hash, now including box images
  vm_settings = {
    "vm-1" => { ip: "10.200.0.2", memory: 512, cpus: 1, box: "pakosaan/fedora-cloud-base-41" },
    "vm-2" => { ip: "10.200.0.3", memory: 512, cpus: 1, box: "cloud-image/ubuntu-24.04" },
    "vm-3" => { ip: "10.200.0.4", memory: 512, cpus: 1, box: "fedora/40-cloud-base" },
  }

  # Function to configure each VM with settings from the vm_settings hash
  def configure_vm(config, name, settings)
    config.vm.define name do |vm_config|
      # Use the box image specified in the settings for each VM
      vm_config.vm.box = settings[:box]
      
      # Set the VM hostname based on its name
      vm_config.vm.hostname = name

      # Configure a private network IP for the VM from the settings hash
      vm_config.vm.network :private_network, ip: settings[:ip]

      # Set up a shared folder between the host and VM
      vm_config.vm.synced_folder "data", "/vm/data"

      # Configure resources like memory and CPUs for the VM's provider (libvirt)
      vm_config.vm.provider "libvirt" do |libvirt|
        libvirt.memory = settings[:memory]
        libvirt.cpus = settings[:cpus]
      end

      # Shell provisioner: Run a shell script named "provision.sh" on VM startup
      vm_config.vm.provision "shell", path: "script/provision.sh"

      # Ansible provisioner for automated configuration management
      # vm_config.vm.provision "ansible" do |ansible|
      #   ansible.playbook = "playbook.yml"
      #   ansible.compatibility_mode = "2.0"
      #   ansible.extra_vars = {
      #     ansible_python_interpreter: "/opt/ansible_venv/bin/python3"
      #   }
      # end
    end
  end

  # Loop through each VM setting in vm_settings and configure only the VMs in ACTIVE_VMS
  vm_settings.each do |name, settings|
    configure_vm(config, name, settings) if ACTIVE_VMS.include?(name)
  end
end

[desmax74]

Same with Vagrant 2.4.3

[theJaxon]

Facing the same issue, a workaround was mentioned in issue #12762 (comment)

Still unable to find a permanent solution without a workaround.

Vagrant version: 2.4.3
MacOS Sequoia 15.3
VMWare Fusion Player V13.6.2

[anshulsharma-hashicorp]

Hi @theJaxon Thank for reporting this issue,

I tried testing this behavior with the similar environment you have mentioned above, and it seems to be working fine where VMs do get those static private ips.

please check the below vagrantfile

Vagrant.configure("2") do |config|

  # List of VM names to activate
  ACTIVE_VMS = ["vm-1", "vm-2", "vm-3"]

  # Define settings for each VM in a hash, now including box images
  vm_settings = {
    "vm-1" => { ip: "10.200.0.2", memory: 512, cpus: 1, box: "bento/fedora-latest" },
    "vm-2" => { ip: "10.200.0.3", memory: 512, cpus: 1, box: "bento/ubuntu-24.04" },
    "vm-3" => { ip: "10.200.0.4", memory: 512, cpus: 1, box: "bento/ubuntu-24.04" },
  }

  # Function to configure each VM with settings from the vm_settings hash
  def configure_vm(config, name, settings)
    config.vm.define name do |vm_config|
      # Use the box image specified in the settings for each VM
      vm_config.vm.box = settings[:box]
      
      # Set the VM hostname based on its name
      vm_config.vm.hostname = name
      vm_config.vm.boot_timeout = 500

      # Configure a private network IP for the VM from the settings hash
      vm_config.vm.network :private_network, ip: settings[:ip]

      # Set up a shared folder between the host and VM
      vm_config.vm.synced_folder "data", "/vm/data"

      # Configure resources like memory and CPUs for the VM's provider (vmware_desktop)
      vm_config.vm.provider "vmware_desktop" do |v|
        v.memory = settings[:memory]
        v.cpus = settings[:cpus]
        #v.gui = true
      end

      # Shell provisioner: Run a shell script named "provision.sh" on VM startup
      vm_config.vm.provision "shell", path: "script/provision.sh"
    end
  end

  # Loop through each VM setting in vm_settings and configure only the VMs in ACTIVE_VMS
  vm_settings.each do |name, settings|
    configure_vm(config, name, settings) if ACTIVE_VMS.include?(name)
  end
end

This i tried with the latest version of vagrant 2.4.6 on my Mac M4, please try this out and let me know if you still face any issue.

@pakosaan i could not try with the libvirt provider due to setup challenges on Mac, but this does not seem to be an issue in vagrant as i tried this with providers VMware and virtualBox, please try this out with latest vagrant.