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

  @lxc_config_path = @cluster_config["lxc_config_path"]
  @lxc_config_path ||= "/var/lib/dev-lxc"

  if @cluster_config["adhoc"]
    @adhoc_servers = @cluster_config["adhoc"]["servers"].keys
  end

  if @cluster_config["chef-server"]
    @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
  end

  if @cluster_config["analytics"]
    @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
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

#lxc_config_path ⇒ Object (readonly)

Returns the value of attribute lxc_config_path.



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

def lxc_config_path
  @lxc_config_path
end

Instance Method Details

#analytics_config ⇒ Object 



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# File 'lib/dev-lxc/cluster.rb', line 160

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(force = false, pivotal = false) ⇒ Object 



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# File 'lib/dev-lxc/cluster.rb', line 74

def chef_repo(force=false, pivotal=false)
  if @chef_server_bootstrap_backend.nil?
    puts "ERROR: A bootstrap backend Chef Server is not defined in the cluster's config. Please define it first."
    exit 1
  end
  chef_server = Server.new(@chef_server_bootstrap_backend, 'chef-server', @cluster_config)
  if ! chef_server.server.defined?
    puts "ERROR: 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.realpath('/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
    pem_files.delete_if { |pem_file| pem_file.end_with?("/pivotal.pem") } unless pivotal
    FileUtils.cp( pem_files, "./chef-repo/.chef" )
  end

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

    if pivotal
      if File.exists?("./chef-repo/.chef/pivotal.rb") && ! force
        puts "Skipping pivotal.rb because it already exists in `./chef-repo/.chef`"
      else
        pivotal_rb_path = "#{chef_server.realpath('/root/chef-repo/.chef')}/pivotal.rb"
        if File.exists?(pivotal_rb_path)
          pivotal_rb = IO.read(pivotal_rb_path)
          pivotal_rb.sub!(/^chef_server_root .*/, "chef_server_root \"#{chef_server_root}\"")
          pivotal_rb.sub!(/^chef_server_url .*/, "chef_server_url \"#{chef_server_root}\"")
          IO.write("./chef-repo/.chef/pivotal.rb", pivotal_rb)
        else
          puts "The pivotal.rb file can not be copied because it does not exist in '#{chef_server.server.name}' Chef Server's `/root/chef-repo/.chef` directory"
        end
      end
    end
  end

  if File.exists?("./chef-repo/.chef/knife.rb") && ! force
    puts "Skipping knife.rb because it already exists in `./chef-repo/.chef`"
  else
    knife_rb_path = "#{chef_server.realpath('/root/chef-repo/.chef')}/knife.rb"
    if File.exists?(knife_rb_path)
      knife_rb = IO.read(knife_rb_path)
      knife_rb.sub!(/^chef_server_url .*/, "chef_server_url \"#{chef_server_url}\"")
      IO.write("./chef-repo/.chef/knife.rb", knife_rb)
    else
      puts "The knife.rb file can not be copied because it does not exist in '#{chef_server.server.name}' Chef Server's `/root/chef-repo/.chef` directory"
    end
  end
end

#chef_server_config ⇒ Object 



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# File 'lib/dev-lxc/cluster.rb', line 135

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 50

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