Class: DevLXC::ChefCluster

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(cluster_config) ⇒ ChefCluster

Returns a new instance of ChefCluster.



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

def initialize(cluster_config)
  @cluster_config = cluster_config
  @api_fqdn = @cluster_config["api_fqdn"]
  @analytics_fqdn = @cluster_config["analytics_fqdn"]
  @topology = @cluster_config["topology"]
  @servers = @cluster_config["servers"]
  @frontends = Array.new
  @servers.each do |name, config|
    case @topology
    when 'open-source', 'standalone'
      @bootstrap_backend = name if config["role"].nil?
    when 'tier'
      @bootstrap_backend = name if config["role"] == "backend" && config["bootstrap"] == true
      @frontends << name if config["role"] == "frontend"
    end
    @analytics_server = name if config["role"] == "analytics"
  end
end

Instance Attribute Details

#bootstrap_backend ⇒ Object (readonly)

Returns the value of attribute bootstrap_backend.



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

def bootstrap_backend
  @bootstrap_backend
end

Instance Method Details

#abspath(rootfs_path) ⇒ Object 



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# File 'lib/dev-lxc/chef-cluster.rb', line 44

def abspath(rootfs_path)
  abspath = Array.new
  chef_servers.each { |cs| abspath << cs.abspath(rootfs_path) unless cs.role == 'analytics' }
  abspath.compact
end

#chef_repo ⇒ Object 



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# File 'lib/dev-lxc/chef-cluster.rb', line 50

def chef_repo
  if @topology == "open-source"
    puts "Unable to create a chef-repo for an Open Source Chef Server"
    exit 1
  end
  chef_server = ChefServer.new(@bootstrap_backend, @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")
  knife_rb = %Q(
current_dir = File.dirname(__FILE__)

chef_server_url "https://#{@api_fqdn}/organizations/ponyville"

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

validation_client_name "ponyville-validator"
validation_key "\#{current_dir}/ponyville-validator.pem"

cookbook_path Dir.pwd + "/cookbooks"
knife[:chef_repo_path] = Dir.pwd
)
  IO.write("./chef-repo/.chef/knife.rb", knife_rb)
  if Dir.glob("#{chef_server.abspath('/root/chef-repo/.chef')}/*.pem").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( Dir.glob("#{chef_server.abspath('/root/chef-repo/.chef')}/*.pem"), "./chef-repo/.chef" )
  end
end

#chef_server_config ⇒ Object 



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# File 'lib/dev-lxc/chef-cluster.rb', line 107

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

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

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

#chef_servers ⇒ Object 



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# File 'lib/dev-lxc/chef-cluster.rb', line 26

def chef_servers
  chef_servers = Array.new
  chef_servers << ChefServer.new(@bootstrap_backend, @cluster_config)
  if @topology == "tier"
    @frontends.each do |frontend_name|
      chef_servers << ChefServer.new(frontend_name, @cluster_config)
    end
  end
  chef_servers << ChefServer.new(@analytics_server, @cluster_config) if @analytics_server
  chef_servers
end

#destroy ⇒ Object 



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# File 'lib/dev-lxc/chef-cluster.rb', line 98

def destroy
  puts "Destroying cluster"
  chef_servers.reverse_each { |cs| cs.destroy }
end

#destroy_container(type) ⇒ Object 



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# File 'lib/dev-lxc/chef-cluster.rb', line 103

def destroy_container(type)
  chef_servers.each { |cs| cs.destroy_container(type) }
end

#run_command(command) ⇒ Object 



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# File 'lib/dev-lxc/chef-cluster.rb', line 84

def run_command(command)
  chef_servers.each { |cs| cs.run_command(command) unless cs.role == 'analytics' }
end

#start ⇒ Object 



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# File 'lib/dev-lxc/chef-cluster.rb', line 88

def start
  puts "Starting cluster"
  chef_servers.each { |cs| cs.start }
end

#status ⇒ Object 



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# File 'lib/dev-lxc/chef-cluster.rb', line 38

def status
  puts "Cluster is available at https://#{@api_fqdn}"
  puts "Analytics is available at https://#{@analytics_fqdn}" if @analytics_fqdn
  chef_servers.each { |cs| cs.status }
end

#stop ⇒ Object 



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# File 'lib/dev-lxc/chef-cluster.rb', line 93

def stop
  puts "Stopping cluster"
  chef_servers.reverse_each { |cs| cs.stop }
end