Class: DevLXC::Cluster

Inherits:
Object
  • Object
show all
Defined in:
lib/dev-lxc/cluster.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(cluster_config) ⇒ Cluster

Returns a new instance of Cluster.



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# File 'lib/dev-lxc/cluster.rb', line 7

def initialize(cluster_config)
  @cluster_config = cluster_config

  @chef_server_topology = @cluster_config["chef-server"]["topology"]
  @api_fqdn = @cluster_config["chef-server"]["api_fqdn"]
  @chef_server_servers = @cluster_config["chef-server"]["servers"]
  @chef_server_frontends = Array.new
  @chef_server_servers.each do |name, config|
    case @chef_server_topology
    when 'open-source', 'standalone'
      @chef_server_bootstrap_backend = name if config["role"].nil?
    when 'tier'
      @chef_server_bootstrap_backend = name if config["role"] == "backend" && config["bootstrap"] == true
      @chef_server_frontends << name if config["role"] == "frontend"
    end
  end

  @analytics_topology = @cluster_config["analytics"]["topology"]
  @analytics_fqdn = @cluster_config["analytics"]["analytics_fqdn"]
  @analytics_servers = @cluster_config["analytics"]["servers"]
  @analytics_frontends = Array.new
  @analytics_servers.each do |name, config|
    case @analytics_topology
    when 'standalone'
      @analytics_bootstrap_backend = name if config["role"].nil?
    when 'tier'
      @analytics_bootstrap_backend = name if config["role"] == "backend" && config["bootstrap"] == true
      @analytics_frontends << name if config["role"] == "frontend"
    end
  end
end

Instance Attribute Details

#analytics_bootstrap_backend ⇒ Object (readonly)

Returns the value of attribute analytics_bootstrap_backend.



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# File 'lib/dev-lxc/cluster.rb', line 5

def analytics_bootstrap_backend
  @analytics_bootstrap_backend
end

#analytics_fqdn ⇒ Object (readonly)

Returns the value of attribute analytics_fqdn.



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# File 'lib/dev-lxc/cluster.rb', line 5

def analytics_fqdn
  @analytics_fqdn
end

#api_fqdn ⇒ Object (readonly)

Returns the value of attribute api_fqdn.



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# File 'lib/dev-lxc/cluster.rb', line 5

def api_fqdn
  @api_fqdn
end

#chef_server_bootstrap_backend ⇒ Object (readonly)

Returns the value of attribute chef_server_bootstrap_backend.



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# File 'lib/dev-lxc/cluster.rb', line 5

def chef_server_bootstrap_backend
  @chef_server_bootstrap_backend
end

Instance Method Details

#analytics_config ⇒ Object 



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# File 'lib/dev-lxc/cluster.rb', line 148

def analytics_config
  analytics_config = %Q(analytics_fqdn "#{@analytics_fqdn}"
topology "#{@analytics_topology}"
)
  if @analytics_topology == 'tier'
    analytics_config += %Q(
server "#{@analytics_bootstrap_backend}",
  :ipaddress => "#{@analytics_servers[@analytics_bootstrap_backend]["ipaddress"]}",
  :role => "backend",
  :bootstrap => true

backend_vip "#{@analytics_bootstrap_backend}",
  :ipaddress => "#{@analytics_servers[@analytics_bootstrap_backend]["ipaddress"]}"
)
    @analytics_frontends.each do |frontend_name|
      analytics_config += %Q(
server "#{frontend_name}",
  :ipaddress => "#{@analytics_servers[frontend_name]["ipaddress"]}",
  :role => "frontend"
)
    end
  end
  return analytics_config
end

#chef_repo ⇒ Object 



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# File 'lib/dev-lxc/cluster.rb', line 57

def chef_repo
  chef_server = Server.new(@chef_server_bootstrap_backend, 'chef-server', @cluster_config)
  if ! chef_server.server.defined?
    puts "The '#{chef_server.server.name}' Chef Server does not exist. Please create it first."
    exit 1
  end

  puts "Creating chef-repo with pem files and knife.rb in the current directory"
  FileUtils.mkdir_p("./chef-repo/.chef")

  pem_files = Dir.glob("#{chef_server.abspath('/root/chef-repo/.chef')}/*.pem")
  if pem_files.empty?
    puts "The pem files can not be copied because they do not exist in '#{chef_server.server.name}' Chef Server's `/root/chef-repo/.chef` directory"
  else
    FileUtils.cp( pem_files, "./chef-repo/.chef" )
  end

  if @chef_server_topology == "open-source"
    chef_server_url = "https://#{@api_fqdn}"
    username = "admin"
    validator_name = "chef-validator"
  else
    chef_server_url = "https://#{@api_fqdn}/organizations/ponyville"
    username = "rainbowdash"
    validator_name = "ponyville-validator"
  end

  knife_rb = %Q(
current_dir = File.dirname(__FILE__)

chef_server_url "#{chef_server_url}"

node_name "#{username}"
client_key "\#{current_dir}/#{username}.pem"

validation_client_name "#{validator_name}"
validation_key "\#{current_dir}/#{validator_name}.pem"

cookbook_path Dir.pwd + "/cookbooks"
knife[:chef_repo_path] = Dir.pwd
)
  IO.write("./chef-repo/.chef/knife.rb", knife_rb)

  bootstrap_node = %Q(#!/bin/bash

if [[ -z $1 ]]; then
  echo "Please provide the name of the node to be bootstrapped"
  return 1
fi

xc-start $1

xc-chef-config -s #{chef_server_url} \\
           -u #{validator_name} \\
           -k ./chef-repo/.chef/#{validator_name}.pem

if [[ -n $2 ]]; then
  xc-attach chef-client -r $2
else
  xc-attach chef-client
fi
)
  IO.write("./bootstrap-node", bootstrap_node)
  FileUtils.chmod("u+x", "./bootstrap-node")
end

#chef_server_config ⇒ Object 



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# File 'lib/dev-lxc/cluster.rb', line 123

def chef_server_config
  chef_server_config = %Q(api_fqdn "#{@api_fqdn}"\n)
  if @chef_server_topology == 'tier'
    chef_server_config += %Q(
topology "#{@chef_server_topology}"

server "#{@chef_server_bootstrap_backend}",
  :ipaddress => "#{@chef_server_servers[@chef_server_bootstrap_backend]["ipaddress"]}",
  :role => "backend",
  :bootstrap => true

backend_vip "#{@chef_server_bootstrap_backend}",
  :ipaddress => "#{@chef_server_servers[@chef_server_bootstrap_backend]["ipaddress"]}"
)
    @chef_server_frontends.each do |frontend_name|
      chef_server_config += %Q(
server "#{frontend_name}",
  :ipaddress => "#{@chef_server_servers[frontend_name]["ipaddress"]}",
  :role => "frontend"
)
    end
  end
  return chef_server_config
end

#servers ⇒ Object 



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# File 'lib/dev-lxc/cluster.rb', line 39

def servers
  chef_servers = Array.new
  chef_servers << Server.new(@chef_server_bootstrap_backend, 'chef-server', @cluster_config)
  if @chef_server_topology == "tier"
    @chef_server_frontends.each do |frontend_name|
      chef_servers << Server.new(frontend_name, 'chef-server', @cluster_config)
    end
  end
  analytics_servers = Array.new
  analytics_servers << Server.new(@analytics_bootstrap_backend, 'analytics', @cluster_config)
  if @analytics_topology == "tier"
    @analytics_frontends.each do |frontend_name|
      analytics_servers << Server.new(frontend_name, 'analytics', @cluster_config)
    end
  end
  servers = chef_servers + analytics_servers
end