Class: LitmusPaper::ConfigurationFile
- Inherits:
-
Object
- Object
- LitmusPaper::ConfigurationFile
- Defined in:
- lib/litmus_paper/configuration_file.rb
Instance Method Summary collapse
- #cache_location(location) ⇒ Object
- #cache_ttl(ttl) ⇒ Object
- #data_directory(directory) ⇒ Object
- #evaluate(file = @config_file_path) ⇒ Object
- #include_files(glob_pattern) ⇒ Object
-
#initialize(config_file_path) ⇒ ConfigurationFile
constructor
A new instance of ConfigurationFile.
- #load_yaml(contents) ⇒ Object
- #parse_yaml_checks(config) ⇒ Object
- #parse_yaml_dependencies(config) ⇒ Object
- #port(port) ⇒ Object
- #service(name, &block) ⇒ Object
- #yaml_service(value) ⇒ Object
Constructor Details
#initialize(config_file_path) ⇒ ConfigurationFile
Returns a new instance of ConfigurationFile.
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# File 'lib/litmus_paper/configuration_file.rb', line 5 def initialize(config_file_path) @config_file_path = config_file_path @services = {} @port = 9292 @data_directory = "/etc/litmus" @cache_location = "/run/shm" @cache_ttl = -1 end |
Instance Method Details
#cache_location(location) ⇒ Object
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# File 'lib/litmus_paper/configuration_file.rb', line 127 def cache_location(location) @cache_location = location end |
#cache_ttl(ttl) ⇒ Object
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# File 'lib/litmus_paper/configuration_file.rb', line 131 def cache_ttl(ttl) @cache_ttl = ttl end |
#data_directory(directory) ⇒ Object
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# File 'lib/litmus_paper/configuration_file.rb', line 44 def data_directory(directory) @data_directory = directory end |
#evaluate(file = @config_file_path) ⇒ Object
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# File 'lib/litmus_paper/configuration_file.rb', line 14 def evaluate(file = @config_file_path) LitmusPaper.logger.info "Loading file #{file}" config_contents = File.read(file) if file =~ /\.(yaml|yml)/ load_yaml(config_contents) else instance_eval(config_contents) end LitmusPaper::Configuration.new( @port, @data_directory, @services, @cache_location, @cache_ttl ) end |
#include_files(glob_pattern) ⇒ Object
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# File 'lib/litmus_paper/configuration_file.rb', line 31 def include_files(glob_pattern) full_glob_pattern = File.(glob_pattern, File.dirname(@config_file_path)) LitmusPaper.logger.info "Searching for files matching: #{full_glob_pattern}" Dir.glob(full_glob_pattern).each do |file| evaluate(file) end end |
#load_yaml(contents) ⇒ Object
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# File 'lib/litmus_paper/configuration_file.rb', line 135 def load_yaml(contents) config = Util.symbolize_keys(YAML.load(contents)) config.each do |key, value| case key when :include_files, :data_directory, :cache_location, :cache_ttl, :port send(key, value) when :services yaml_service(value) end end end |
#parse_yaml_checks(config) ⇒ Object
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# File 'lib/litmus_paper/configuration_file.rb', line 64 def parse_yaml_checks(config) config.map do |check| check_config = Util.symbolize_keys(check) case check[:type].to_sym when :big_brother_service Metric::BigBrotherService.new(check_config.delete(:service)) when :cpu_load Metric::CPULoad.new(check_config.delete(:weight)) when :constant_metric Metric::ConstantMetric.new(check_config.delete(:weight)) when :internet_health weight = check_config.delete(:weight) hosts = check_config.delete(:hosts) Metric::InternetHealth.new(weight, hosts, check_config) when :script command = check_config.delete(:command) weight = check_config.delete(:weight) Metric::Script.new(command, weight, check_config) when :haproxy_backends_health weight = check_config.delete(:weight) domain_socket = dep_config.delete(:domain_socket) cluster = dep_config.delete(:cluster) Metric::HaproxyBackendsHealth.new(weight, domain_socket, cluster, check_config) when :tcp_socket_utilization weight = check_config.delete(:weight) address = check_config.delete(:address) maxconn = check_config.delete(:maxconn) Metric::TcpSocketUtilization.new(weight, address, maxconn) when :unix_socket_utilization weight = check_config.delete(:weight) socket_path = check_config.delete(:socket_path) maxconn = check_config.delete(:maxconn) Metric::UnixSocketUtilization.new(weight, socket_path, maxconn) end end end |
#parse_yaml_dependencies(config) ⇒ Object
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# File 'lib/litmus_paper/configuration_file.rb', line 101 def parse_yaml_dependencies(config) config.map do |dep| dep_config = Util.symbolize_keys(dep) case dep[:type].to_sym when :file_contents path = dep_config.delete(:path) regex = dep_config.delete(:regex) Dependency::FileContents.new(path, regex, dep_config) when :haproxy_backends domain_socket = dep_config.delete(:domain_socket) cluster = dep_config.delete(:cluster) Dependency::HaproxyBackends.new(domain_socket, cluster, dep_config) when :http uri = dep_config.delete(:uri) Dependency::HTTP.new(uri, dep_config) when "script" command = dep_config.delete(:command) Dependency::Script.new(command, ) when "tcp" ip = dep_config.delete(:ip) port = dep_config.delete(:port) Dependency::TCP.new(ip, port, dep_config) end end end |
#port(port) ⇒ Object
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# File 'lib/litmus_paper/configuration_file.rb', line 40 def port(port) @port = port end |
#service(name, &block) ⇒ Object
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# File 'lib/litmus_paper/configuration_file.rb', line 48 def service(name, &block) service = Service.new(name.to_s) block.call(service) @services[name.to_s] = service end |
#yaml_service(value) ⇒ Object
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# File 'lib/litmus_paper/configuration_file.rb', line 54 def yaml_service(value) value.each do |name, config| config = Util.symbolize_keys(config) dependencies = parse_yaml_dependencies(config.fetch(:dependencies, [])) checks = parse_yaml_checks(config.fetch(:checks, [])) service = Service.new(name.to_s, dependencies, checks) @services[name.to_s] = service end end |