224 lines
7 KiB
Ruby
224 lines
7 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
require 'faraday'
|
|
require 'faraday_middleware'
|
|
require 'digest'
|
|
|
|
module ContainerRegistry
|
|
class Client
|
|
include Gitlab::Utils::StrongMemoize
|
|
|
|
attr_accessor :uri
|
|
|
|
DOCKER_DISTRIBUTION_MANIFEST_V2_TYPE = 'application/vnd.docker.distribution.manifest.v2+json'
|
|
OCI_MANIFEST_V1_TYPE = 'application/vnd.oci.image.manifest.v1+json'
|
|
CONTAINER_IMAGE_V1_TYPE = 'application/vnd.docker.container.image.v1+json'
|
|
REGISTRY_VERSION_HEADER = 'gitlab-container-registry-version'
|
|
REGISTRY_FEATURES_HEADER = 'gitlab-container-registry-features'
|
|
REGISTRY_TAG_DELETE_FEATURE = 'tag_delete'
|
|
|
|
ACCEPTED_TYPES = [DOCKER_DISTRIBUTION_MANIFEST_V2_TYPE, OCI_MANIFEST_V1_TYPE].freeze
|
|
|
|
# Taken from: FaradayMiddleware::FollowRedirects
|
|
REDIRECT_CODES = Set.new [301, 302, 303, 307]
|
|
|
|
def self.supports_tag_delete?
|
|
registry_config = Gitlab.config.registry
|
|
return false unless registry_config.enabled && registry_config.api_url.present?
|
|
|
|
token = Auth::ContainerRegistryAuthenticationService.access_token([], [])
|
|
client = new(registry_config.api_url, token: token)
|
|
client.supports_tag_delete?
|
|
end
|
|
|
|
def initialize(base_uri, options = {})
|
|
@base_uri = base_uri
|
|
@options = options
|
|
end
|
|
|
|
def registry_info
|
|
response = faraday.get("/v2/")
|
|
|
|
return {} unless response&.success?
|
|
|
|
version = response.headers[REGISTRY_VERSION_HEADER]
|
|
features = response.headers.fetch(REGISTRY_FEATURES_HEADER, '')
|
|
|
|
{
|
|
version: version,
|
|
features: features.split(',').map(&:strip),
|
|
vendor: version ? 'gitlab' : 'other'
|
|
}
|
|
end
|
|
|
|
def repository_tags(name)
|
|
response_body faraday.get("/v2/#{name}/tags/list")
|
|
end
|
|
|
|
def repository_manifest(name, reference)
|
|
response_body faraday.get("/v2/#{name}/manifests/#{reference}")
|
|
end
|
|
|
|
def repository_tag_digest(name, reference)
|
|
response = faraday.head("/v2/#{name}/manifests/#{reference}")
|
|
response.headers['docker-content-digest'] if response.success?
|
|
end
|
|
|
|
def delete_repository_tag_by_digest(name, reference)
|
|
delete_if_exists("/v2/#{name}/manifests/#{reference}")
|
|
end
|
|
|
|
def delete_repository_tag_by_name(name, reference)
|
|
delete_if_exists("/v2/#{name}/tags/reference/#{reference}")
|
|
end
|
|
|
|
# Check if the registry supports tag deletion. This is only supported by the
|
|
# GitLab registry fork. The fastest and safest way to check this is to send
|
|
# an OPTIONS request to /v2/<name>/tags/reference/<tag>, using a random
|
|
# repository name and tag (the registry won't check if they exist).
|
|
# Registries that support tag deletion will reply with a 200 OK and include
|
|
# the DELETE method in the Allow header. Others reply with an 404 Not Found.
|
|
def supports_tag_delete?
|
|
strong_memoize(:supports_tag_delete) do
|
|
registry_features = Gitlab::CurrentSettings.container_registry_features || []
|
|
next true if ::Gitlab.com? && registry_features.include?(REGISTRY_TAG_DELETE_FEATURE)
|
|
|
|
response = faraday.run_request(:options, '/v2/name/tags/reference/tag', '', {})
|
|
response.success? && response.headers['allow']&.include?('DELETE')
|
|
end
|
|
end
|
|
|
|
def upload_raw_blob(path, blob)
|
|
digest = "sha256:#{Digest::SHA256.hexdigest(blob)}"
|
|
|
|
if upload_blob(path, blob, digest).success?
|
|
[blob, digest]
|
|
end
|
|
end
|
|
|
|
def upload_blob(name, content, digest)
|
|
upload = faraday.post("/v2/#{name}/blobs/uploads/")
|
|
return upload unless upload.success?
|
|
|
|
location = URI(upload.headers['location'])
|
|
|
|
faraday.put("#{location.path}?#{location.query}") do |req|
|
|
req.params['digest'] = digest
|
|
req.headers['Content-Type'] = 'application/octet-stream'
|
|
req.body = content
|
|
end
|
|
end
|
|
|
|
def generate_empty_manifest(path)
|
|
image = {
|
|
config: {}
|
|
}
|
|
image, image_digest = upload_raw_blob(path, Gitlab::Json.pretty_generate(image))
|
|
return unless image
|
|
|
|
{
|
|
schemaVersion: 2,
|
|
mediaType: DOCKER_DISTRIBUTION_MANIFEST_V2_TYPE,
|
|
config: {
|
|
mediaType: CONTAINER_IMAGE_V1_TYPE,
|
|
size: image.size,
|
|
digest: image_digest
|
|
}
|
|
}
|
|
end
|
|
|
|
def blob(name, digest, type = nil)
|
|
type ||= 'application/octet-stream'
|
|
response_body faraday_blob.get("/v2/#{name}/blobs/#{digest}", nil, 'Accept' => type), allow_redirect: true
|
|
end
|
|
|
|
def delete_blob(name, digest)
|
|
delete_if_exists("/v2/#{name}/blobs/#{digest}")
|
|
end
|
|
|
|
def put_tag(name, reference, manifest)
|
|
response = faraday.put("/v2/#{name}/manifests/#{reference}") do |req|
|
|
req.headers['Content-Type'] = DOCKER_DISTRIBUTION_MANIFEST_V2_TYPE
|
|
req.body = Gitlab::Json.pretty_generate(manifest)
|
|
end
|
|
|
|
response.headers['docker-content-digest'] if response.success?
|
|
end
|
|
|
|
private
|
|
|
|
def initialize_connection(conn, options)
|
|
conn.request :json
|
|
|
|
if options[:user] && options[:password]
|
|
conn.request(:basic_auth, options[:user].to_s, options[:password].to_s)
|
|
elsif options[:token]
|
|
conn.request(:authorization, :bearer, options[:token].to_s)
|
|
end
|
|
|
|
yield(conn) if block_given?
|
|
|
|
conn.adapter :net_http
|
|
end
|
|
|
|
def accept_manifest(conn)
|
|
conn.headers['Accept'] = ACCEPTED_TYPES
|
|
|
|
conn.response :json, content_type: 'application/json'
|
|
conn.response :json, content_type: 'application/vnd.docker.distribution.manifest.v1+prettyjws'
|
|
conn.response :json, content_type: 'application/vnd.docker.distribution.manifest.v1+json'
|
|
conn.response :json, content_type: DOCKER_DISTRIBUTION_MANIFEST_V2_TYPE
|
|
conn.response :json, content_type: OCI_MANIFEST_V1_TYPE
|
|
end
|
|
|
|
def response_body(response, allow_redirect: false)
|
|
if allow_redirect && REDIRECT_CODES.include?(response.status)
|
|
response = redirect_response(response.headers['location'])
|
|
end
|
|
|
|
response.body if response && response.success?
|
|
end
|
|
|
|
def redirect_response(location)
|
|
return unless location
|
|
|
|
uri = URI(@base_uri).merge(location)
|
|
raise ArgumentError, "Invalid scheme for #{location}" unless %w[http https].include?(uri.scheme)
|
|
|
|
faraday_redirect.get(uri)
|
|
end
|
|
|
|
def faraday
|
|
@faraday ||= faraday_base do |conn|
|
|
initialize_connection(conn, @options, &method(:accept_manifest))
|
|
end
|
|
end
|
|
|
|
def faraday_blob
|
|
@faraday_blob ||= faraday_base do |conn|
|
|
initialize_connection(conn, @options)
|
|
end
|
|
end
|
|
|
|
# Create a new request to make sure the Authorization header is not inserted
|
|
# via the Faraday middleware
|
|
def faraday_redirect
|
|
@faraday_redirect ||= faraday_base do |conn|
|
|
conn.request :json
|
|
conn.adapter :net_http
|
|
end
|
|
end
|
|
|
|
def faraday_base(&block)
|
|
Faraday.new(@base_uri, headers: { user_agent: "GitLab/#{Gitlab::VERSION}" }, &block)
|
|
end
|
|
|
|
def delete_if_exists(path)
|
|
result = faraday.delete(path)
|
|
|
|
result.success? || result.status == 404
|
|
end
|
|
end
|
|
end
|
|
|
|
ContainerRegistry::Client.prepend_if_ee('EE::ContainerRegistry::Client')
|