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"]
  @topology = @cluster_config["topology"]
  @servers = @cluster_config["servers"]
  if %w(tier ha).include?(@topology)
    @bootstrap_backend = @servers.select {|k,v| v["role"] == "backend" && v["bootstrap"] == true}.first.first
    @frontends = @servers.select {|k,v| v["role"] == "frontend"}.keys
  end
  if @topology == "ha"
    @secondary_backend = @servers.select {|k,v| v["role"] == "backend" && v["bootstrap"] == nil}.first.first
  end
end

Instance Attribute Details

#api_fqdn ⇒ Object (readonly)

Returns the value of attribute api_fqdn.



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

def api_fqdn
  @api_fqdn
end

#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

#frontends ⇒ Object (readonly)

Returns the value of attribute frontends.



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

def frontends
  @frontends
end

#secondary_backend ⇒ Object (readonly)

Returns the value of attribute secondary_backend.



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

def secondary_backend
  @secondary_backend
end

#topology ⇒ Object (readonly)

Returns the value of attribute topology.



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

def topology
  @topology
end

Instance Method Details

#abspath(rootfs_path) ⇒ Object 



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# File 'lib/dev-lxc/chef-cluster.rb', line 46

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

#chef_server_config ⇒ Object 



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

def chef_server_config
  chef_server_config = %Q(api_fqdn "#{@api_fqdn}"\n)
  if %w(tier ha).include?(@topology)
    chef_server_config += %Q(
topology "#{@topology}"

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

    case @topology
    when "tier"
      chef_server_config += %Q(

backend_vip "#{@bootstrap_backend}",
  :ipaddress => "#{@servers[@bootstrap_backend]["ipaddress"]}"
)
    when "ha"
      backend_vip_name = config["backend_vip"].keys.first
      chef_server_config += %Q(,
  :cluster_ipaddress => "#{@servers[@bootstrap_backend]["cluster_ipaddress"]}"

server "#{@secondary_backend}",
  :ipaddress => "#{@servers[@secondary_backend]["ipaddress"]}",
  :role => "backend",
  :cluster_ipaddress => "#{@servers[@secondary_backend]["cluster_ipaddress"]}

backend_vip "#{backend_vip_name}",
  :ipaddress => "#{config["backend_vip"][backend_vip_name]["ipaddress"]}",
  :device => "#{config["backend_vip"][backend_vip_name]["device"]}",
  :heartbeat_device => "#{config["backend_vip"][backend_vip_name]["heartbeat_device"]}"
)
    end
    @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 21

def chef_servers
  chef_servers = Array.new
  case @topology
  when "open-source", "standalone"
    chef_servers << ChefServer.new(@servers.keys.first, @cluster_config)
  when "tier"
    chef_servers << ChefServer.new(@bootstrap_backend, @cluster_config)
    @frontends.each do |frontend_name|
      chef_servers << ChefServer.new(frontend_name, @cluster_config)
    end
  when "ha"
    chef_servers << ChefServer.new(@bootstrap_backend, @cluster_config)
    chef_servers << ChefServer.new(@secondary_backend, @cluster_config)
    @frontends.each do |frontend_name|
      chef_servers << ChefServer.new(frontend_name, @cluster_config)
    end
  end
  chef_servers
end

#destroy ⇒ Object 



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# File 'lib/dev-lxc/chef-cluster.rb', line 66

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

#destroy_base_container(type) ⇒ Object 



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# File 'lib/dev-lxc/chef-cluster.rb', line 71

def destroy_base_container(type)
  case type
  when :unique
    @servers.keys.each do |server_name|
      DevLXC::ChefServer.new(server_name, @cluster_config).destroy_base_container(:unique)
    end
  when :shared
    DevLXC::ChefServer.new(@servers.keys.first, @cluster_config).destroy_base_container(:shared)
  when :platform
    DevLXC::ChefServer.new(@servers.keys.first, @cluster_config).destroy_base_container(:platform)
  end
end

#run_command(command) ⇒ Object 



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# File 'lib/dev-lxc/chef-cluster.rb', line 52

def run_command(command)
  chef_servers.each { |cs| cs.run_command(command) }
end

#start ⇒ Object 



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# File 'lib/dev-lxc/chef-cluster.rb', line 56

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 41

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

#stop ⇒ Object 



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# File 'lib/dev-lxc/chef-cluster.rb', line 61

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