010-problem-statement

On and off for months now I have returned to the issue of deploying a 
multi-vagrant-box development environment, but without success.  

In a conversation today a colleague suggested that the issue was likely 
baked into our vagrant base box, which I built early this past year from 
an ISO blessed by the operations folks in the company.  He suggests they 
somehow disabled deploying a second nic, and udev/rules.d script which the 
SUSE documentation promises I might find at: 
    /etc/udev/rules.d/70-persistent-net.rules 
is not to be found, suggesting that there might be something to his theory.  

So I have been hard-coding a work-around, and am quite pleased with the 
progress I enjoyed this afternoon.  I am able to successfully use the 
Vagrantfile reproduced here to add a nic, and configure it with an IP.  
All that to explain why I am jumping through the hoops seen here, 
at least I am no longer filing bug reports against the vagrant library.

The issue I face now is that I seem unable to effectively parameterize the 
ruby method which is passing the IP to the network configuration.  The 
jenkins slave node runs first and its IP gets applied to both that node 
and to the jenkins master node, leaving the two nodes unable to communicate 
with one another.  

Any thoughts on how to resolve this issue would be appreciated.  I still 
struggle a bit with ruby, which I have only started using somewhat regularly 
in the past year.  

Thanks for your time reviewing this code.  

-- Hugh 

020-notes_from_irc_conversation

https://eval.in/487971 
https://docs.vagrantup.com/v2/multi-machine/
https://gist.github.com/yzguy/70876b1b2d6489b5b578
https://gist.github.com/yzguy/c3a22df8f45e0585cf85
https://github.com/mitchellh/vagrant/issues/6142

posted to #ruby@irc.freenode.net --

toretore: your advice that DRY is over-rated, along with Yzguy's wet Vagrantfile, along with my 
*.vm.network . . . auto_config: false, plus my shell provisioner using the get_network_config_script( ip ), 
at long last got me to the promised land. I now have a functioning multi-node Vagrantfile !!! 
which builds across the vpn in 20 minutes, although those two nodes only take 11 minutes in the office.

100-Vagrantfile

base_box = 'sles11sp3_employer_pe_agent_v0.9.1'

nodes = {
    'slave' => { 'ram' => 2048, 'ip' => '192.168.51.111', 'listen' => false, 'host' => 'slave.jenkins' },
  'jenkins' => { 'ram' => 6144, 'ip' => '192.168.51.101', 'listen' => true, 'host' => 'jenkins' },
}

def get_network_config_script ( ip )
  File.write("/tmp/method_says_ip", ip)
  $configure_network = <<SCRIPT

  ip="#{ip}"
  INTERFACE=$(ip link show | grep DOWN | awk '{ print $2 }' | sed "s,:,,")
  echo "$ip : $INTERFACE" > /tmp/computed_interface
  NIC="/etc/sysconfig/network/ifcfg-$INTERFACE"
  if [ -d "$NIC" ]; then
    rm "$NIC"
  fi
  echo "#VAGRANT-BEGIN" >> $NIC
  echo "# The contents below are automatically generated by Vagrant. Do not modify." >> $NIC
  echo "BOOTPROTO='static'" >> $NIC
  echo "IPADDR='$ip'" >> $NIC
  echo "NETMASK='255.255.255.0'" >> $NIC
  echo "DEVICE='eth1'" >> $NIC
  echo "PEERDNS=no" >> $NIC
  echo "STARTMODE='auto'" >> $NIC
  echo "USERCONTROL='no'" >> $NIC
  echo "#VAGRANT-END" >> $NIC

  /sbin/ifup "$INTERFACE"
SCRIPT

end

Vagrant.configure(2) do |config|
  nodes.each do | host, foo |
    File.write("/tmp/#{nodes[host]['host']}", nodes[host])
    # File.write("/tmp/#{nodes[#{host}]['host']}", nodes[#{host}]['ip'])
    # if node['listen'] == true then
    #   config.vm.network "forwarded_port", guest: 8080, host: 9080
    # end
    config.vm.provider "virtualbox" do |v|
      v.memory = nodes[host]['ram']
      v.cpus = 2
    end
    config.vm.define "#{nodes[host]['host']}" do |jenkins|
      jenkins.vm.box = base_box
      jenkins.vm.hostname = "#{nodes[host]['host']}.vagrant"
      jenkins.ssh.private_key_path = 'insecure_key'
      jenkins.vm.network "private_network", ip: "#{nodes[host]['ip']}", auto_config: false
      config.vm.synced_folder "fixtures/etc/puppet/hieradata", "/tmp/vagrant-puppet/hieradata"
      # $configure_network_#{host} = get_network_config_script( nodes[host]['ip'] )
      # config.vm.provision "shell", inline: "$configure_network_#{host}"
      File.write("/tmp/ip_#{nodes[host]['host']}", nodes[host]['ip'])
      config.vm.provision "shell", inline: get_network_config_script( nodes[host]['ip'] )
      config.vm.provision "puppet" do |puppet|
        puppet.manifests_path = "fixtures/etc/puppet/environments/production/manifests"
        puppet.manifest_file = "nodes.pp"
        puppet.module_path = [ '../', 'fixtures/etc/puppet/modules', 'fixtures/etc/puppet/environments/production/modules' ]
        puppet.facter = {
          "vagrant" => "1"
        }
        puppet.hiera_config_path = "fixtures/etc/puppet/hiera.yaml"
        puppet.working_directory = "/tmp/vagrant-puppet"
        # puppet.options = "--verbose --debug"
        # puppet.options = "--parser future"
      end
    end
  end
end

200-Vagrantfile-refactored

base_box = 'sles11sp3_employer_pe_agent_v0.9.1'

nodes = {
    'slave' => { 'ram' => 2048, 'ip' => '192.168.51.111', 'listen' => false, 'host' => 'slave.jenkins' },
  'jenkins' => { 'ram' => 6144, 'ip' => '192.168.51.101', 'listen' => true, 'host' => 'jenkins' },
}

def get_network_config_script ( ip )
  File.write("/tmp/method_says_ip", ip)
  configure_network = <<SCRIPT

  ip="#{ip}"
  INTERFACE=$(ip link show | grep DOWN | awk '{ print $2 }' | sed "s,:,,")
  echo "$ip : $INTERFACE" > /tmp/computed_interface
  NIC="/etc/sysconfig/network/ifcfg-$INTERFACE"
  if [ -d "$NIC" ]; then
    rm "$NIC"
  fi
  echo "#VAGRANT-BEGIN" >> $NIC
  echo "# The contents below are automatically generated by Vagrant. Do not modify." >> $NIC
  echo "BOOTPROTO='static'" >> $NIC
  echo "IPADDR='$ip'" >> $NIC
  echo "NETMASK='255.255.255.0'" >> $NIC
  echo "DEVICE='eth1'" >> $NIC
  echo "PEERDNS=no" >> $NIC
  echo "STARTMODE='auto'" >> $NIC
  echo "USERCONTROL='no'" >> $NIC
  echo "#VAGRANT-END" >> $NIC

  /sbin/ifup "$INTERFACE"
SCRIPT

end

Vagrant.configure(2) do |config|
  nodes.each do | host, foo |
    File.write("/tmp/#{nodes[host]['host']}", nodes[host])
    # File.write("/tmp/#{nodes[#{host}]['host']}", nodes[#{host}]['ip'])
    # if node['listen'] == true then
    #   config.vm.network "forwarded_port", guest: 8080, host: 9080
    # end
    config.vm.provider "virtualbox" do |v|
      v.memory = nodes[host]['ram']
      v.cpus = 2
    end
    config.vm.define "#{nodes[host]['host']}" do |jenkins|
      jenkins.vm.box = base_box
      jenkins.vm.hostname = "#{nodes[host]['host']}.vagrant"
      jenkins.ssh.private_key_path = 'insecure_key'
      jenkins.vm.network "private_network", ip: "#{nodes[host]['ip']}", auto_config: false
      # $configure_network_#{host} = get_network_config_script( nodes[host]['ip'] )
      # config.vm.provision "shell", inline: "$configure_network_#{host}"
      File.write("/tmp/ip_#{nodes[host]['host']}", nodes[host]['ip'])
      config.vm.provision "shell", inline: get_network_config_script( nodes[host]['ip'] )
    end
  end

  config.vm.synced_folder "fixtures/etc/puppet/hieradata", "/tmp/vagrant-puppet/hieradata"
  config.vm.provision "puppet" do |puppet|
    puppet.manifests_path = "fixtures/etc/puppet/environments/production/manifests"
    puppet.manifest_file = "nodes.pp"
    puppet.module_path = [ '../', 'fixtures/etc/puppet/modules', 'fixtures/etc/puppet/environments/production/modules' ]
    puppet.facter = {
      "vagrant" => "1"
    }
    puppet.hiera_config_path = "fixtures/etc/puppet/hiera.yaml"
    puppet.working_directory = "/tmp/vagrant-puppet"
    # puppet.options = "--verbose --debug"
    # puppet.options = "--parser future"
  end
end