Class: MobyDerp::Pod

Inherits:
Object
  • Object
show all
Includes:
LoggingHelpers
Defined in:
lib/moby_derp/pod.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(pod_config) ⇒ Pod

Returns a new instance of Pod.



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# File 'lib/moby_derp/pod.rb', line 10

def initialize(pod_config)
	@config = pod_config
	@logger = pod_config.logger
end

Instance Attribute Details

#logger ⇒ Object (readonly)

Returns the value of attribute logger.



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# File 'lib/moby_derp/pod.rb', line 8

def logger
  @logger
end

Instance Method Details

#common_environment ⇒ Object 



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# File 'lib/moby_derp/pod.rb', line 69

def common_environment
	@config.common_environment
end

#common_labels ⇒ Object 



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# File 'lib/moby_derp/pod.rb', line 61

def common_labels
	@config.common_labels
end

#common_mounts ⇒ Object 



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# File 'lib/moby_derp/pod.rb', line 73

def common_mounts
	@config.common_mounts
end

#expose ⇒ Object 



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# File 'lib/moby_derp/pod.rb', line 89

def expose
	@config.expose
end

#hostname ⇒ Object 



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# File 'lib/moby_derp/pod.rb', line 85

def hostname
	@config.hostname
end

#mount_root ⇒ Object 



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# File 'lib/moby_derp/pod.rb', line 77

def mount_root
	@config.mount_root
end

#name ⇒ Object 



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# File 'lib/moby_derp/pod.rb', line 48

def name
	@config.name
end

#network_name ⇒ Object 



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# File 'lib/moby_derp/pod.rb', line 81

def network_name
	@config.network_name
end

#root_container_id ⇒ Object 



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# File 'lib/moby_derp/pod.rb', line 52

def root_container_id
	if @root_container_id.nil?
		raise MobyDerp::BugError,
		      "root_container_id requested before root container was spawned"
	else
		@root_container_id
	end
end

#root_labels ⇒ Object 



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# File 'lib/moby_derp/pod.rb', line 65

def root_labels
	@config.root_labels
end

#run ⇒ Object 



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# File 'lib/moby_derp/pod.rb', line 15

def run
	@logger.info(logloc) { "Checking root container" }
	@root_container_id = root_container.run

	@logger.debug(logloc) { "Root container ID is #{@root_container_id}" }

	desired_container_names = @config.containers.map(&:name)

	Docker::Container.all(all: true).each do |c|
		c_name = c.info["Names"].first.sub(/^\//, '')

		if c.info["Labels"]["org.hezmatt.moby-derp.pod-name"] == name &&
				!c.info["Labels"]["org.hezmatt.moby-derp.root-container-id"].nil? &&
				!desired_container_names.include?(c_name)
			@logger.info(logloc) { "Removing stale container #{c_name}" }
			c.stop
			c.delete
		end
	end

	@config.containers.each do |cfg|
		@logger.info(logloc) { "Checking container #{cfg.name}" }

		begin
			MobyDerp::Container.new(pod: self, container_config: cfg).run
		rescue MobyDerp::ContainerError => ex
			@logger.error(logloc) {
				(["Error while running container #{cfg.name}: #{ex.message}"] + ex.backtrace.map { |l| "  #{l}" }).join("\n")
			}
		end
	end
end