How to pass dhcp details of my local network in my vagrant file - configuration

Question

I have a vagrant file, where the IP of my virtual box is hardcoded.
# The IP address of the first server
primary_ip = "172.17.8.101"
I wanted to dynamically assign the ip based on my local network (corporate network).
In vagrant documentation, I see we can use
The easiest way to use a private network is to allow the IP to be assigned via DHCP.
Vagrant.configure("2") do |config|
config.vm.network "private_network", type: "dhcp"
end
https://www.vagrantup.com/docs/networking/private_network.html
In the same vagrant file, during the configuration I see that the hardcoded ip is referred. Now since, I am using the 'type: dhcp', how can I pass the IP details for the below configuration?
host.vm.provision :shell, inline: %Q|echo 'export ETCD_AUTHORITY="#{primary_ip}:2379"' >> /home/vagrant/.profile|

Answer 1

I have used the below code snippet so that the virtualbox is depends on the host network to get IP address.
config.vm.network "public_network",
use_dhcp_assigned_default_route: true, bridge:
While running my vagrant file, I had the below bridged network interfaces. To auto select the network interface used the below code snippet.
Available bridged network interfaces:
1) Intel(R) 82579LM Gigabit Network Connection
2) VMware Virtual Ethernet Adapter for VMnet1
3) VMware Virtual Ethernet Adapter for VMnet8
code snippet.
config.vm.network "public_network", bridge: "Intel(R) 82579LM Gigabit Network Connection"