Class: Kdep::Registry

Inherits:
Object
  • Object
show all
Defined in:
lib/kdep/registry.rb

Defined Under Namespace

Classes: Error

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(registry_url) ⇒ Registry

Returns a new instance of Registry.



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# File 'lib/kdep/registry.rb', line 12

def initialize(registry_url)
  url = registry_url.chomp("/")
  parts = url.split("/", 2)
  @host = parts[0]
  @path_prefix = parts[1]
  @registry_url = url
end

Instance Attribute Details

#host ⇒ Object (readonly)

Returns the value of attribute host.



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# File 'lib/kdep/registry.rb', line 10

def host
  @host
end

#path_prefix ⇒ Object (readonly)

Returns the value of attribute path_prefix.



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# File 'lib/kdep/registry.rb', line 10

def path_prefix
  @path_prefix
end

Instance Method Details

#list_tags(image) ⇒ Object 



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# File 'lib/kdep/registry.rb', line 20

def list_tags(image)
  repository = @path_prefix ? "#{@path_prefix}/#{image}" : image
  uri = URI("https://#{@host}/v2/#{repository}/tags/list")

  req = Net::HTTP::Get.new(uri)
  apply_auth(req, repository)

  response = Net::HTTP.start(uri.host, uri.port, use_ssl: true) do |http|
    http.request(req)
  end

  # Handle 401 with ACR token exchange
  if response.code == "401" && @host.end_with?(".azurecr.io")
    token = acr_exchange_token(repository)
    if token
      req = Net::HTTP::Get.new(uri)
      req["Authorization"] = "Bearer #{token}"
      response = Net::HTTP.start(uri.host, uri.port, use_ssl: true) do |http|
        http.request(req)
      end
    end
  end

  # Follow redirects
  if response.code == "301" || response.code == "302"
    redirect_uri = URI(response["location"])
    req = Net::HTTP::Get.new(redirect_uri)
    apply_auth(req, repository)
    response = Net::HTTP.start(redirect_uri.host, redirect_uri.port, use_ssl: true) do |http|
      http.request(req)
    end
  end

  return [] if response.code == "404"

  unless response.code.start_with?("2")
    raise Error, "Registry returned #{response.code}: #{response.body}"
  end

  data = JSON.parse(response.body)
  data["tags"] || []
end