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Contents
require 'yaml'
require 'cap-util'
module CapUtil
class ServerRoles
include CapUtil
attr_reader :roles
def initialize(cap, roles_yaml)
@cap = cap
@roles = RoleSet.new(YAML.load(roles_yaml))
end
# Since this is a CapUtil, we can call cap cmds using the `cap` accessor.
# For each role, call cap's `role` method, passing the relevant values.
def apply
@roles.each do |name, host, opts|
cap.role name, host, opts
end
end
class RoleSet
attr_reader :role_defs
def initialize(roles_hash)
@role_defs = roles_hash.map do |(role_name, role_servers_hash)|
RoleDef.new(role_name, role_servers_hash)
end
end
def each(&block)
@role_defs.each {|role_def| role_def.apply(&block)}
end
end
class RoleDef
attr_reader :name, :servers
def initialize(name, servers_hash)
@name = name
@servers = servers_hash.map do |(server_name, server_options_list)|
ServerDef.new(server_name, server_options_list)
end
end
def apply(&block)
@servers.each do |server|
block.call @name, server.hostname, server.options
end
end
end
class ServerDef
attr_reader :hostname, :options
def initialize(name, options_list=[])
@hostname = "#{name}.reelfx.com"
@options = {}
# so, weird cap bug. options have to match type when using them in
# a task's definition. so if you have (string) 'primary' option, you
# have to use a string in your task defs.
# this is not the case for the role names (string or symbol works).
# so, I'm just defining each option, both in string (how it comes from
# the configs) and symbol form.
options_list.each do |option|
@options[option.to_s] = true
@options[option.to_sym] = true
end
end
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems