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# File 'lib/scaltainer/command.rb', line 6
def self.parse(args)
configfile, statefile, wait, orchestrator, pushgateway = 'scaltainer.yml', nil, 0, :swarm, nil
OptionParser.new do |opts|
opts.banner = "Usage: scaltainer [options]"
opts.on("-f", "--conf-file FILE", "Specify configuration file (default: scaltainer.yml)") do |file|
configfile = file
end
opts.on("--state-file FILE", "Specify state file (default: <conf-file>.state)") do |file|
statefile = file
end
opts.on("-w", "--wait SECONDS", "Specify wait time between repeated calls, 0 for no repetition (default: 0)") do |w|
wait = w.to_i
end
opts.on("-o", "--orchestrator swarm:kubernetes", [:swarm, :kubernetes], "Specify orchestrator type (default: swarm)") do |o|
orchestrator = o
end
opts.on("-g", "--prometheus-push-gateway ADDRESS", "Specify prometheus push gateway address in the form of host:port") do |gw|
pushgateway = gw
end
opts.on("-v", "--version", "Show version and exit") do
puts Scaltainer::VERSION
exit 0
end
opts.on_tail("-h", "--help", "Show this message") do
puts opts
puts "\nEnvironment variables: \n"
puts "Docker Swarm options:"
puts "- DOCKER_URL: defaults to local socket"
puts "Kubernetes options:"
puts "- KUBECONFIG: set to Kubernetes config (default: $HOME/.kube/config) if you want to connect to the current configured cluster"
puts "- KUBERNETES_API_SERVER: overrides option in KUBECONFIG and defaults to https://kubernetes.default:443"
puts "- KUBERNETES_SKIP_SSL_VERIFY: KUBECONFIG option overrides this, set to any value to skip SSL verification"
puts "- KUBERNETES_API_ENDPOINT: defaults to /api"
puts "- KUBERNETES_API_VERSION: overrides option in KUBECONFIG and defaults to v1"
puts "- KUBERNETES_CONTROLLER_KIND: controller kind to scale, allowed values: deployment (default), replication_controller, or replica_set"
puts " Make sure the KUBERNETES_CONTROLLER_KIND you specify is part of the api specified using KUBERNETES_API_ENDPOINT and KUBERNETES_API_VERSION"
puts "General options:"
puts "- HIREFIRE_TOKEN"
puts "- NEW_RELIC_API_KEY"
puts "- RESPONSE_TIME_WINDOW: defaults to 5"
puts "- LOG_LEVEL: defaults to INFO"
puts "- DOCKER_SECRETS_PATH_GLOB: path glob containing env files to load"
exit
end
end.parse!
statefile = "#{configfile}.state" unless statefile
raise ConfigurationError.new("File not found: #{configfile}") unless File.exists?(configfile)
load_env
logger = Logger.new(STDOUT)
logger.level = %w(debug info warn error fatal unknown).find_index((ENV['LOG_LEVEL'] || '').downcase) || 1
return configfile, statefile, logger, wait, orchestrator, pushgateway
end
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