Class: Dapp::Image::Docker

Inherits:
Object
  • Object
show all
Includes:
Helper::Shellout
Defined in:
lib/dapp/image/docker.rb

Overview

Docker

Direct Known Subclasses

Stage

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Helper::Shellout

included, #shellout, #shellout!, #shellout_pack

Constructor Details

#initialize(name:, from: nil) ⇒ Docker

Returns a new instance of Docker.



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# File 'lib/dapp/image/docker.rb', line 11

def initialize(name:, from: nil)
  @from = from
  @name = name
end

Instance Attribute Details

#from ⇒ Object (readonly)

Returns the value of attribute from.



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# File 'lib/dapp/image/docker.rb', line 8

def from
  @from
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/dapp/image/docker.rb', line 9

def name
  @name
end

Class Method Details

.cache ⇒ Object 



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# File 'lib/dapp/image/docker.rb', line 63

def cache
  @cache ||= (@cache = {}).tap { cache_reset }
end

.cache_reset(name = '') ⇒ Object 



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# File 'lib/dapp/image/docker.rb', line 67

def cache_reset(name = '')
  shellout!("docker images --format='{{.Repository}}:{{.Tag}};{{.ID}};{{.CreatedAt}};{{.Size}}' #{name}").stdout.lines.each do |line|
    name, id, created_at, size = line.split(';')
    cache[name] = { id: id, created_at: created_at, size: size }
  end
end

Instance Method Details

#id ⇒ Object 



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# File 'lib/dapp/image/docker.rb', line 16

def id
  @id || cache[:id]
end

#info ⇒ Object

Raises:



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# File 'lib/dapp/image/docker.rb', line 46

def info
  raise Error::Build, code: :image_not_exist, data: { name: name } unless tagged?
  [cache[:created_at], cache[:size]]
end

#pull!(log_verbose: false, log_time: false) ⇒ Object 



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# File 'lib/dapp/image/docker.rb', line 31

def pull!(log_verbose: false, log_time: false)
  return if tagged?
  shellout!("docker pull #{name}", log_verbose: log_verbose, log_time: log_time)
  @pulled = true
  cache_reset
end

#pulled? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dapp/image/docker.rb', line 42

def pulled?
  !!@pulled
end

#push!(log_verbose: false, log_time: false) ⇒ Object

Raises:



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# File 'lib/dapp/image/docker.rb', line 26

def push!(log_verbose: false, log_time: false)
  raise Error::Build, code: :image_not_exist, data: { name: name } unless tagged?
  shellout!("docker push #{name}", log_verbose: log_verbose, log_time: log_time)
end

#tagged? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dapp/image/docker.rb', line 38

def tagged?
  !!id
end

#untag! ⇒ Object

Raises:



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# File 'lib/dapp/image/docker.rb', line 20

def untag!
  raise Error::Build, code: :image_already_untagged, data: { name: name } unless tagged?
  shellout!("docker rmi #{name}")
  cache_reset
end