Static IP for each VM

[Jim Jim]

Hello Alvero,

Please find below my contents of my "Vagrantfile"

Vagrant.configure("2") do |config|
  config.ssh.insert_key=true
  config.vm.provider "virtualbox" do |vb|
    vb.gui = true
    vb.memory = "2048"
  end
  config.vm.define "lb1" do |lb1|
    lb1.vm.box="centos/7"
    config.vm.network "public_network", ip: "192.168.1.21"
    config.vm.provision "shell", inline: <<-SHELL
    hostnamectl set-hostname loadbalancer
    SHELL
  end
  config.vm.define "web1" do |web1|
    web1.vm.box="centos/7"
    config.vm.network "public_network", ip: "192.168.1.22"
    config.vm.provision "shell", inline: <<-SHELL
    hostnamectl set-hostname web1
    SHELL
  end
  config.vm.define "web2" do |web2|
    web2.vm.box="centos/7"
    config.vm.network "public_network", ip: "192.168.1.23"
    config.vm.provision "shell", inline: <<-SHELL
    hostnamectl set-hostname web2
    SHELL
  end
end

Issue is my web2 machine has three IPs(192.168.1.21,22,23) web1 has two (192.168.21,22) and loadbalancer has one (192.168.1.21)

What I want is a static IP for each machine like below

loadbalancer  192.168.1.21

web1             192.168.1.22

web2             192.168.1.23

How to do that ? My each config loop is getting closed with "end" so I am not sure why each machine is having IP for its own plus previous declared IP of previous machines?

Your guidance would be sincerely appreciated.

Kind Regards,

Jim

[Alvaro Miranda Aguilera]

On Sat, Nov 12, 2016 at 12:35 PM, Jim Jim <jiminfote...@gmail.com> wrote:

  config.vm.define "lb1" do |lb1|
    lb1.vm.box="centos/7"
    config.vm.network "public_network", ip: "192.168.1.21"
    config.vm.provision "shell", inline: <<-SHELL
    hostnamectl set-hostname loadbalancer
    SHELL
  end

Hello

You need a change, but I will suggest 2.

This is what you are missing on the IP part. inside the define, don't use config. use the name you defined.

ie.

  config.vm.define "lb1" do |lb1|
    lb1.vm.box="centos/7"

    lb1.vm.network "public_network", ip: "192.168.1.21"
    lb1.vm.provision "shell", inline: <<-SHELL

    hostnamectl set-hostname loadbalancer
    SHELL
  end

2nd change, Vagrant can set the VM name for you

  config.vm.define "lb1" do |lb1|
    lb1.vm.box="centos/7"

    lb1.vm.network "public_network", ip: "192.168.1.21"
    lb1.vm.hostname = "loadbalancer"
  end

--

Alvaro

[jiminfote...@gmail.com]

Thank you very much Alvero, I tried the command you suggested. It worked for first VM for second one it gave the error below:

==> web1: Setting hostname...

The following SSH command responded with a non-zero exit status.

Vagrant assumes that this means the command failed!

# Update sysconfig

sed -i 's/\(HOSTNAME=\).*/\1web1/' /etc/sysconfig/network

# Update DNS

sed -i 's/\(DHCP_HOSTNAME=\).*/\1"web1"/' /etc/sysconfig/network-scripts/ifcfg-*

# Set the hostname - use hostnamectl if available

echo 'web1' > /etc/hostname

if command -v hostnamectl; then

  hostnamectl set-hostname --static 'web1'

  hostnamectl set-hostname --transient 'web1'

else

  hostname -F /etc/hostname

fi

# Remove comments and blank lines from /etc/hosts

sed -i'' -e 's/#.*$//' -e '/^$/d' /etc/hosts

# Prepend ourselves to /etc/hosts

grep -w 'web1' /etc/hosts || {

  sed -i'' '1i 127.0.0.1\tweb1\tweb1' /etc/hosts

}

# Restart network

service network restart

Stdout from the command:

/bin/hostnamectl

Restarting network (via systemctl):  [FAILED]

Stderr from the command:

Job for network.service failed because the control process exited with error code. See "systemctl status network.service" and "journalctl -xe" for details.

C:\Users\jim\Virtual-VMs\load_balancer_lab>

Any idea why ?

Kind Regards,

Jim

[Alvaro Miranda Aguilera]

please share a gist of your vagrantfile

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Alvaro