ranjib

ranjib@trusty-ranjib:~/workspace/chef [lxc] $ bxk bootstrap 10.0.3.39 -x ubuntu -P ubuntu --sudo   
WARNING: * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
WARNING: Specifying the encrypted data bag secret key using an 'encrypted_data_bag_secret'
entry in 'knife.rb' is deprecated. Please see CHEF-4011 for more details. You
can supress this warning and still distribute the secret key to all bootstrapped
machines by adding the following to your 'knife.rb' file:

  knife[:secret_file] = "/path/to/your/secret"

If you would like to selectively distribute a secret key during bootstrap

ranjib

class MyRecipe
end

module Extension
  def foo
  end
end

r1 = MyRecipe.new
r2 = MyRecipe.new

ranjib

# process based .. has memory implication


sleep_time = 10

pids= []

10.times do |n|
 pids << fork do
  sleep sleep_time

ranjib

To use a knife plugin programmatically, from any ruby script, you need first know the source of the plugin. you have to know the config options for all the command line arguments you are interested to use. All knife plugin use mixlib-cli interface, and the command line options can be found at the beginning of the file (convention), declared using option method. if you are curious take a look at mixlib-cli readme

1.require the corresponding plugin file

require '/path/to/plugin'

ranjib

# stage 0 build your chef gears
require 'chef'

def run_chef(client, item)
  client.node.run_list.reset!
  client.node.run_list <<  item
  run_context = Chef::RunContext.new(client.node, {}, client.events)
  runner = Chef::Runner.new(run_context)
  runner.converge
end

ranjib

template '/etc/haproxy/haproxy.cfg' do
  extend Helper
  variables(
    containers: container_ips('goatos'),
    start_port: 8000
   )
  source 'haproxy.cfg.erb'
end

ranjib

require 'blender/chef'

init(:ssh, user: 'some', password: ask('Pass: '), stdout: $stdout)
init(:chef, config_file: 'knife.rb')

members search(:chef, '*:*')

ssh_task 'run chef' do
  execute 'sudo chef-client --no-fork'
end

ranjib

listen_addresses = '<%= node['chef_server']['postgresql']['listen_address'] %>'    # what IP address(es) to listen on;
port = <%= node['chef_server']['postgresql']['port'] %>        # (change requires restart)
checkpoint_segments =  <%= node['chef_server']['postgresql']['checkpoint_segments'] %>          # in logfile segments, min 1, 16MB each, default 3
checkpoint_timeout = <%= node['chef_server']['postgresql']['checkpoint_timeout'] %>             # range 30s-1h, default 5min
checkpoint_completion_target = <%= node['chef_server']['postgresql']['checkpoint_completion_target'] %> # checkpoint target duration, 0.0 - 1.0, default 0.5
checkpoint_warning = <%= node['chef_server']['postgresql']['checkpoint_warning'] %>             # 0 disables, default 30s
datestyle = 'iso, mdy'
lc_messages = 'C'     # locale for system error message
lc_monetary = 'C'     # locale for monetary formatting
lc_numeric = 'C'      # locale for number formatting

ranjib

#!/bin/bash
clean () {
  rm -f etc/* keys/*;
}

start_vm(){
  VM=$1
  SNAPSHOT=$2
  VBoxManage list runningvms | grep "$VM"
  $? || VBoxManage controlvm "$VM" poweroff

ranjib

describe 'recipe[doit]' do
  before(:each) do
    stub_r3dparty_cookbooks
  end
  it 'some awesome specs do here' do
   # assertion
  end
end