Vagrant destroy execute ruby - ruby

Question

I would like to execute a custom ruby code after doing vagrant destroy.
That's the code:
class OnDestroyMiddleware
def initialize(app, env)
#app = app
end
def call(env)
env["config"].vm.provisioners.each do |provisioner|
env.ui.info "Attempting to remove client #{provisioner.config.node_name}"
`knife client show #{provisioner.config.node_name}`
if $?.to_i == 0
env.ui.info "Removing client #{provisioner.config.node_name}"
`knife client delete #{provisioner.config.node_name} -y`
end
env.ui.info "Attempting to remove node #{provisioner.config.node_name}"
`knife node show #{provisioner.config.node_name}`
if $?.to_i == 0
env.ui.info "Removing node #{provisioner.config.node_name}"
`knife node delete #{provisioner.config.node_name} -y`
end
end
#app.call(env)
end
end
I'm trying this but isn't working:
Vagrant::Action[:destroy].use(OnDestroyMiddleware)
All of this code is from https://gist.github.com/skippy/1010660
I've got this error on Vagrant::Action[:destroy]
Message: NoMethodError: undefined method `[]' for Vagrant::Action:Module

Answer 1

You can look at the vagrant trigger plugin. It allows you to run code after a specific vagrant command.
First you need to install the plugin
$ vagrant plugin install vagrant-triggers
You'll add the code directly in your Vagrantfile, like
Vagrant.configure("2") do |config|
# Your existing Vagrant configuration
...
# run some script before the guest is destroyed
config.trigger.after :destroy do
info "Attempting to remove client..."
run "knife client show .."
end