I understand now. I'm following
https://medium.com/oracledevs/two-birds-with-one-home-cloned-vagrant-multi-machines-2ee5ba75fad8
and I see that a master VM is created that never gets started.
Vagrant uses VirtualBox linked clones to create new VMs.
So if I want to update the master, I have to update the base box it is
based on.
On Wednesday, 15 April 2020 12:52:21 UTC-4, Dennis Chang wrote:
>
> Hi all,
>
> I'm not sure how linked clones work. So please correct my misunderstanding.
>
> I have a Vagrantfile
> ```
> $setup = <<-SETUP
> echo "Running as $(id)"
> yum update -y
> yum install -y java-1.8.0-openjdk-devel
> SETUP
>
> Vagrant.configure("2") do |config|
>
> config.vm.define "master-01" do |master|
> master.vm.box = "centos/7"
> master.vm.provider "virtualbox" do |v|
> v.cpus = 1
> v.memory = 1024
> v.linked_clone = true
> end
> master.vm.provision "shell", inline: $setup
> end
>
> config.vm.define "clone-01" do |clone|
> clone.vm.box = "centos/7"
> clone.vm.provider "virtualbox" do |v|
> v.cpus = 2
> v.memory = 2048
> v.linked_clone = true
> end
> master.vm.provision "shell", inline: <<-INLINE
> # download and start application (depends on Java)
> INLINE
> end
> ```
>
> So ideally, I only run yum update only once (I noticed that the VM
> snapshot blows up to 1.5 GB) because it takes time. But in my example, when
> I spinup clone-01, clone-01 doesn't have Java already installed and it
> fails (to startup).
>
> So my question is, how *should* I define a Vagrantfile for multi-machines
> where one machine is a linked clone of another where I only need to run yum
> update -y once?.
> Can you tell me what I'm doing wrong here?
>
> Thanks,
>
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