module V1::Mutate

Overview

Module provides facilities for mutating v1.Images of any kind.

Extended Modules

• V1::Mutate

Defined in:

v1/mutate/image.cr
v1/mutate/mutate.cr
v1/mutate/rebase.cr

Constant Summary

WHITEOUT_PREFIX = ".wh."

Instance Method Summary

• #append(base : V1::Image, adds : Array(Addendum))

  append will apply the list of Addendum to the base image

• #append_layers(base : V1::Image, layers : Array(V1::Layer))

  append_layers applies layers to a base image

• #canonical(img : V1::Image)

  canonical is a helper function to combine Time and configFile to remove any randomness during a docker build.

• #config(base : V1::Image, cfg : V1::Config)

  config mutates the provided V1::Image to have the provided V1::Config

• #config_file(base : V1::Image, cfg : V1::ConfigFile)

  config_file mutates the provided V1::Image to have the provided V1::ConfigFile

• #created_at(base : V1::Image, created : Time)

  created_at mutates the provided V1::Image to have the provided Time

• #extract(img : V1::Image, w : IO) : Nil
• #extract(img : V1::Image)

  extract takes an image and returns an io.ReadCloser containing the image's flattened filesystem.

• #in_whiteout_dir(map : ::Hash(String, Bool), file : String)
• #layer_time(layer : V1::Layer, t : Time)
• #rebase(orig : V1::Image, old_base : V1::Image, new_base : V1::Image)

  rebase returns a new V1::Image where the old_base in orig is replaced by new_base

• #time(img : V1::Image, t : Time)

  time sets all timestamps in an image to the given timestamp.

• #validate(adds : Array(Addendum)) : Nil

Instance Method Detail