Class: DockerCleaner::Containers

Inherits:
Object
  • Object
show all
Defined in:
lib/docker_cleaner/containers.rb

Instance Method Summary collapse

Constructor Details

#initialize(logger, opts = {}) ⇒ Containers

Returns a new instance of Containers.



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# File 'lib/docker_cleaner/containers.rb', line 3

def initialize(logger, opts = {})
  @logger = logger
  @delay = opts.fetch(:delay, 0)
end

Instance Method Details

#remove(container) ⇒ Object 



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# File 'lib/docker_cleaner/containers.rb', line 8

def remove(container)
  @logger.info "Remove #{container.id[0...10]} - #{container.info["Image"]} - #{container.info["Names"][0]}"
  container.remove v: true
  @logger.info "Remove #{container.id[0...10]} - #{container.info["Image"]} - #{container.info["Names"][0]}... OK"
end

#run ⇒ Object 



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# File 'lib/docker_cleaner/containers.rb', line 14

def run
  # Remove stopped container which stopped with code '0'
  two_hours_ago = Time.now.to_i - 2 * 3600
  Docker::Container.all(all: true).select{ |container|
    status = container.info["Status"]
    (status == "Created" && container.info["Created"].to_i < two_hours_ago) ||
      (status.include?("Exited (") && container.info["Created"].to_i < two_hours_ago)
  }.each do |container|
    remove(container)
    sleep(@delay)
  end

  containers_per_app = {}
  Docker::Container.all(all: true).select{ |container|
    container.info["Status"].include?("Exited")
  }.each{ |container|
    app = container.info["Image"].split(":", 2)[0]
    if containers_per_app[app].nil?
      containers_per_app[app] = [container]
    else
      containers_per_app[app] << container
    end
  }
  containers_per_app.each do |app, containers|
    containers.shift
    containers.each do |container|
      remove(container)
      sleep(@delay)
    end
  end
end