Class: Pygmy::Amazee

Inherits:
Object
  • Object
show all
Extended by:
DockerService
Defined in:
lib/pygmy/amazee.rb

Class Method Summary collapse

Methods included from DockerService

container_exists?, delete, has_docker_client?, ps, pull, running?, start, start_cmd, stop

Class Method Details

.ignore_list ⇒ Object 



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# File 'lib/pygmy/amazee.rb', line 12

def self.ignore_list
  %w(none ssh-agent haproxy)
end

.ls_cmd ⇒ Object 



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# File 'lib/pygmy/amazee.rb', line 27

def self.ls_cmd
  cmd = 'docker image ls --format "{{.Repository}}:{{.Tag}}"'
  list = Sh.run_command(cmd)

  # For better handling of containers, we should compare our
  # results against a whitelist instead of preferential
  # treatment of linux pipes.
  containers = list.stdout.split("\n")
  amazee_containers = []
  containers.each do |container|
    # Selectively target amazeeio/* images.
    if container.include?(self.prefix)
      include_container = true
      # Filter out items which we don't want.
      self.ignore_list.each do |item|
        if container.include?(item)
          include_container = false
        end
      end
      amazee_containers.push(container) if include_container
    end
  end
  amazee_containers
end

.prefix ⇒ Object 



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# File 'lib/pygmy/amazee.rb', line 8

def self.prefix
  "amazeeio/"
end

.pull(image_name) ⇒ Object 



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# File 'lib/pygmy/amazee.rb', line 16

def self.pull(image_name)
  puts "Pulling Docker Image #{Shellwords.escape(image_name)}".yellow
  pull_cmd = "docker pull #{Shellwords.escape(image_name)}"
  success = Sh.run_command(pull_cmd).success?
  unless success
    raise RuntimeError.new(
        "Failed to update #{self.container_name}.  Command #{pull_cmd} failed"
    )
  end
end

.pull_all ⇒ Object 



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# File 'lib/pygmy/amazee.rb', line 52

def self.pull_all
  list = self.ls_cmd
  unless list.nil?
    list.each do |image|
      self.pull(image)
    end
  end
end