Update vendor

vendor/github.com/google/go-containerregistry/pkg/name/README.md

@@ -0,0 +1,3 @@
+# `name`
+
+[![GoDoc](https://godoc.org/github.com/google/go-containerregistry/pkg/name?status.svg)](https://godoc.org/github.com/google/go-containerregistry/pkg/name)

vendor/github.com/google/go-containerregistry/pkg/name/check.go

@@ -0,0 +1,43 @@
+// Copyright 2018 Google LLC All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package name
+
+import (
+	"strings"
+	"unicode/utf8"
+)
+
+// stripRunesFn returns a function which returns -1 (i.e. a value which
+// signals deletion in strings.Map) for runes in 'runes', and the rune otherwise.
+func stripRunesFn(runes string) func(rune) rune {
+	return func(r rune) rune {
+		if strings.ContainsRune(runes, r) {
+			return -1
+		}
+		return r
+	}
+}
+
+// checkElement checks a given named element matches character and length restrictions.
+// Returns true if the given element adheres to the given restrictions, false otherwise.
+func checkElement(name, element, allowedRunes string, minRunes, maxRunes int) error {
+	numRunes := utf8.RuneCountInString(element)
+	if (numRunes < minRunes) || (maxRunes < numRunes) {
+		return NewErrBadName("%s must be between %d and %d runes in length: %s", name, minRunes, maxRunes, element)
+	} else if len(strings.Map(stripRunesFn(allowedRunes), element)) != 0 {
+		return NewErrBadName("%s can only contain the runes `%s`: %s", name, allowedRunes, element)
+	}
+	return nil
+}

vendor/github.com/google/go-containerregistry/pkg/name/digest.go

@@ -0,0 +1,96 @@
+// Copyright 2018 Google LLC All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package name
+
+import (
+	"strings"
+)
+
+const (
+	// These have the form: sha256:<hex string>
+	// TODO(dekkagaijin): replace with opencontainers/go-digest or docker/distribution's validation.
+	digestChars = "sh:0123456789abcdef"
+	digestDelim = "@"
+)
+
+// Digest stores a digest name in a structured form.
+type Digest struct {
+	Repository
+	digest   string
+	original string
+}
+
+// Ensure Digest implements Reference
+var _ Reference = (*Digest)(nil)
+
+// Context implements Reference.
+func (d Digest) Context() Repository {
+	return d.Repository
+}
+
+// Identifier implements Reference.
+func (d Digest) Identifier() string {
+	return d.DigestStr()
+}
+
+// DigestStr returns the digest component of the Digest.
+func (d Digest) DigestStr() string {
+	return d.digest
+}
+
+// Name returns the name from which the Digest was derived.
+func (d Digest) Name() string {
+	return d.Repository.Name() + digestDelim + d.DigestStr()
+}
+
+// String returns the original input string.
+func (d Digest) String() string {
+	return d.original
+}
+
+func checkDigest(name string) error {
+	return checkElement("digest", name, digestChars, 7+64, 7+64)
+}
+
+// NewDigest returns a new Digest representing the given name.
+func NewDigest(name string, opts ...Option) (Digest, error) {
+	// Split on "@"
+	parts := strings.Split(name, digestDelim)
+	if len(parts) != 2 {
+		return Digest{}, NewErrBadName("a digest must contain exactly one '@' separator (e.g. registry/repository@digest) saw: %s", name)
+	}
+	base := parts[0]
+	digest := parts[1]
+
+	// Always check that the digest is valid.
+	if err := checkDigest(digest); err != nil {
+		return Digest{}, err
+	}
+
+	tag, err := NewTag(base, opts...)
+	if err == nil {
+		base = tag.Repository.Name()
+	}
+
+	repo, err := NewRepository(base, opts...)
+	if err != nil {
+		return Digest{}, err
+	}
+	return Digest{
+		Repository: repo,
+		digest:     digest,
+		original:   name,
+	}, nil
+}

vendor/github.com/google/go-containerregistry/pkg/name/doc.go

@@ -0,0 +1,42 @@
+// Copyright 2018 Google LLC All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package name defines structured types for representing image references.
+//
+// What's in a name? For image references, not nearly enough!
+//
+// Image references look a lot like URLs, but they differ in that they don't
+// contain the scheme (http or https), they can end with a :tag or a @digest
+// (the latter being validated), and they perform defaulting for missing
+// components.
+//
+// Since image references don't contain the scheme, we do our best to infer
+// if we use http or https from the given hostname. We allow http fallback for
+// any host that looks like localhost (localhost, 127.0.0.1, ::1), ends in
+// ".local", or is in the "private" address space per RFC 1918. For everything
+// else, we assume https only. To override this heuristic, use the Insecure
+// option.
+//
+// Image references with a digest signal to us that we should verify the content
+// of the image matches the digest. E.g. when pulling a Digest reference, we'll
+// calculate the sha256 of the manifest returned by the registry and error out
+// if it doesn't match what we asked for.
+//
+// For defaulting, we interpret "ubuntu" as
+// "index.docker.io/library/ubuntu:latest" because we add the missing repo
+// "library", the missing registry "index.docker.io", and the missing tag
+// "latest". To disable this defaulting, use the StrictValidation option. This
+// is useful e.g. to only allow image references that explicitly set a tag or
+// digest, so that you don't accidentally pull "latest".
+package name

vendor/github.com/google/go-containerregistry/pkg/name/errors.go

@@ -0,0 +1,37 @@
+// Copyright 2018 Google LLC All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package name
+
+import "fmt"
+
+// ErrBadName is an error for when a bad docker name is supplied.
+type ErrBadName struct {
+	info string
+}
+
+func (e *ErrBadName) Error() string {
+	return e.info
+}
+
+// NewErrBadName returns a ErrBadName which returns the given formatted string from Error().
+func NewErrBadName(fmtStr string, args ...interface{}) *ErrBadName {
+	return &ErrBadName{fmt.Sprintf(fmtStr, args...)}
+}
+
+// IsErrBadName returns true if the given error is an ErrBadName.
+func IsErrBadName(err error) bool {
+	_, ok := err.(*ErrBadName)
+	return ok
+}

vendor/github.com/google/go-containerregistry/pkg/name/options.go

@@ -0,0 +1,83 @@
+// Copyright 2018 Google LLC All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package name
+
+const (
+	// DefaultRegistry is the registry name that will be used if no registry
+	// provided and the default is not overridden.
+	DefaultRegistry      = "index.docker.io"
+	defaultRegistryAlias = "docker.io"
+
+	// DefaultTag is the tag name that will be used if no tag provided and the
+	// default is not overridden.
+	DefaultTag = "latest"
+)
+
+type options struct {
+	strict          bool // weak by default
+	insecure        bool // secure by default
+	defaultRegistry string
+	defaultTag      string
+}
+
+func makeOptions(opts ...Option) options {
+	opt := options{
+		defaultRegistry: DefaultRegistry,
+		defaultTag:      DefaultTag,
+	}
+	for _, o := range opts {
+		o(&opt)
+	}
+	return opt
+}
+
+// Option is a functional option for name parsing.
+type Option func(*options)
+
+// StrictValidation is an Option that requires image references to be fully
+// specified; i.e. no defaulting for registry (dockerhub), repo (library),
+// or tag (latest).
+func StrictValidation(opts *options) {
+	opts.strict = true
+}
+
+// WeakValidation is an Option that sets defaults when parsing names, see
+// StrictValidation.
+func WeakValidation(opts *options) {
+	opts.strict = false
+}
+
+// Insecure is an Option that allows image references to be fetched without TLS.
+func Insecure(opts *options) {
+	opts.insecure = true
+}
+
+// OptionFn is a function that returns an option.
+type OptionFn func() Option
+
+// WithDefaultRegistry sets the default registry that will be used if one is not
+// provided.
+func WithDefaultRegistry(r string) Option {
+	return func(opts *options) {
+		opts.defaultRegistry = r
+	}
+}
+
+// WithDefaultTag sets the default tag that will be used if one is not provided.
+func WithDefaultTag(t string) Option {
+	return func(opts *options) {
+		opts.defaultTag = t
+	}
+}

vendor/github.com/google/go-containerregistry/pkg/name/ref.go

@@ -0,0 +1,49 @@
+// Copyright 2018 Google LLC All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package name
+
+import (
+	"fmt"
+)
+
+// Reference defines the interface that consumers use when they can
+// take either a tag or a digest.
+type Reference interface {
+	fmt.Stringer
+
+	// Context accesses the Repository context of the reference.
+	Context() Repository
+
+	// Identifier accesses the type-specific portion of the reference.
+	Identifier() string
+
+	// Name is the fully-qualified reference name.
+	Name() string
+
+	// Scope is the scope needed to access this reference.
+	Scope(string) string
+}
+
+// ParseReference parses the string as a reference, either by tag or digest.
+func ParseReference(s string, opts ...Option) (Reference, error) {
+	if t, err := NewTag(s, opts...); err == nil {
+		return t, nil
+	}
+	if d, err := NewDigest(s, opts...); err == nil {
+		return d, nil
+	}
+	return nil, NewErrBadName("could not parse reference: " + s)
+
+}

vendor/github.com/google/go-containerregistry/pkg/name/registry.go

@@ -0,0 +1,136 @@
+// Copyright 2018 Google LLC All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package name
+
+import (
+	"net"
+	"net/url"
+	"regexp"
+	"strings"
+)
+
+// Detect more complex forms of local references.
+var reLocal = regexp.MustCompile(`.*\.local(?:host)?(?::\d{1,5})?$`)
+
+// Detect the loopback IP (127.0.0.1)
+var reLoopback = regexp.MustCompile(regexp.QuoteMeta("127.0.0.1"))
+
+// Detect the loopback IPV6 (::1)
+var reipv6Loopback = regexp.MustCompile(regexp.QuoteMeta("::1"))
+
+// Registry stores a docker registry name in a structured form.
+type Registry struct {
+	insecure bool
+	registry string
+}
+
+// RegistryStr returns the registry component of the Registry.
+func (r Registry) RegistryStr() string {
+	return r.registry
+}
+
+// Name returns the name from which the Registry was derived.
+func (r Registry) Name() string {
+	return r.RegistryStr()
+}
+
+func (r Registry) String() string {
+	return r.Name()
+}
+
+// Scope returns the scope required to access the registry.
+func (r Registry) Scope(string) string {
+	// The only resource under 'registry' is 'catalog'. http://goo.gl/N9cN9Z
+	return "registry:catalog:*"
+}
+
+func (r Registry) isRFC1918() bool {
+	ipStr := strings.Split(r.Name(), ":")[0]
+	ip := net.ParseIP(ipStr)
+	if ip == nil {
+		return false
+	}
+	for _, cidr := range []string{"10.0.0.0/8", "172.16.0.0/12", "192.168.0.0/16"} {
+		_, block, _ := net.ParseCIDR(cidr)
+		if block.Contains(ip) {
+			return true
+		}
+	}
+	return false
+}
+
+// Scheme returns https scheme for all the endpoints except localhost or when explicitly defined.
+func (r Registry) Scheme() string {
+	if r.insecure {
+		return "http"
+	}
+	if r.isRFC1918() {
+		return "http"
+	}
+	if strings.HasPrefix(r.Name(), "localhost:") {
+		return "http"
+	}
+	if reLocal.MatchString(r.Name()) {
+		return "http"
+	}
+	if reLoopback.MatchString(r.Name()) {
+		return "http"
+	}
+	if reipv6Loopback.MatchString(r.Name()) {
+		return "http"
+	}
+	return "https"
+}
+
+func checkRegistry(name string) error {
+	// Per RFC 3986, registries (authorities) are required to be prefixed with "//"
+	// url.Host == hostname[:port] == authority
+	if url, err := url.Parse("//" + name); err != nil || url.Host != name {
+		return NewErrBadName("registries must be valid RFC 3986 URI authorities: %s", name)
+	}
+	return nil
+}
+
+// NewRegistry returns a Registry based on the given name.
+// Strict validation requires explicit, valid RFC 3986 URI authorities to be given.
+func NewRegistry(name string, opts ...Option) (Registry, error) {
+	opt := makeOptions(opts...)
+	if opt.strict && len(name) == 0 {
+		return Registry{}, NewErrBadName("strict validation requires the registry to be explicitly defined")
+	}
+
+	if err := checkRegistry(name); err != nil {
+		return Registry{}, err
+	}
+
+	if name == "" {
+		name = opt.defaultRegistry
+	}
+	// Rewrite "docker.io" to "index.docker.io".
+	// See: https://github.com/google/go-containerregistry/issues/68
+	if name == defaultRegistryAlias {
+		name = DefaultRegistry
+	}
+
+	return Registry{registry: name, insecure: opt.insecure}, nil
+}
+
+// NewInsecureRegistry returns an Insecure Registry based on the given name.
+//
+// Deprecated: Use the Insecure Option with NewRegistry instead.
+func NewInsecureRegistry(name string, opts ...Option) (Registry, error) {
+	opts = append(opts, Insecure)
+	return NewRegistry(name, opts...)
+}

vendor/github.com/google/go-containerregistry/pkg/name/repository.go

@@ -0,0 +1,121 @@
+// Copyright 2018 Google LLC All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package name
+
+import (
+	"fmt"
+	"strings"
+)
+
+const (
+	defaultNamespace = "library"
+	repositoryChars  = "abcdefghijklmnopqrstuvwxyz0123456789_-./"
+	regRepoDelimiter = "/"
+)
+
+// Repository stores a docker repository name in a structured form.
+type Repository struct {
+	Registry
+	repository string
+}
+
+// See https://docs.docker.com/docker-hub/official_repos
+func hasImplicitNamespace(repo string, reg Registry) bool {
+	return !strings.ContainsRune(repo, '/') && reg.RegistryStr() == DefaultRegistry
+}
+
+// RepositoryStr returns the repository component of the Repository.
+func (r Repository) RepositoryStr() string {
+	if hasImplicitNamespace(r.repository, r.Registry) {
+		return fmt.Sprintf("%s/%s", defaultNamespace, r.repository)
+	}
+	return r.repository
+}
+
+// Name returns the name from which the Repository was derived.
+func (r Repository) Name() string {
+	regName := r.Registry.Name()
+	if regName != "" {
+		return regName + regRepoDelimiter + r.RepositoryStr()
+	}
+	// TODO: As far as I can tell, this is unreachable.
+	return r.RepositoryStr()
+}
+
+func (r Repository) String() string {
+	return r.Name()
+}
+
+// Scope returns the scope required to perform the given action on the registry.
+// TODO(jonjohnsonjr): consider moving scopes to a separate package.
+func (r Repository) Scope(action string) string {
+	return fmt.Sprintf("repository:%s:%s", r.RepositoryStr(), action)
+}
+
+func checkRepository(repository string) error {
+	return checkElement("repository", repository, repositoryChars, 2, 255)
+}
+
+// NewRepository returns a new Repository representing the given name, according to the given strictness.
+func NewRepository(name string, opts ...Option) (Repository, error) {
+	opt := makeOptions(opts...)
+	if len(name) == 0 {
+		return Repository{}, NewErrBadName("a repository name must be specified")
+	}
+
+	var registry string
+	repo := name
+	parts := strings.SplitN(name, regRepoDelimiter, 2)
+	if len(parts) == 2 && (strings.ContainsRune(parts[0], '.') || strings.ContainsRune(parts[0], ':')) {
+		// The first part of the repository is treated as the registry domain
+		// iff it contains a '.' or ':' character, otherwise it is all repository
+		// and the domain defaults to Docker Hub.
+		registry = parts[0]
+		repo = parts[1]
+	}
+
+	if err := checkRepository(repo); err != nil {
+		return Repository{}, err
+	}
+
+	reg, err := NewRegistry(registry, opts...)
+	if err != nil {
+		return Repository{}, err
+	}
+	if hasImplicitNamespace(repo, reg) && opt.strict {
+		return Repository{}, NewErrBadName("strict validation requires the full repository path (missing 'library')")
+	}
+	return Repository{reg, repo}, nil
+}
+
+// Tag returns a Tag in this Repository.
+func (r Repository) Tag(identifier string) Tag {
+	t := Tag{
+		tag:        identifier,
+		Repository: r,
+	}
+	t.original = t.Name()
+	return t
+}
+
+// Digest returns a Digest in this Repository.
+func (r Repository) Digest(identifier string) Digest {
+	d := Digest{
+		digest:     identifier,
+		Repository: r,
+	}
+	d.original = d.Name()
+	return d
+}

vendor/github.com/google/go-containerregistry/pkg/name/tag.go

@@ -0,0 +1,108 @@
+// Copyright 2018 Google LLC All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package name
+
+import (
+	"strings"
+)
+
+const (
+	// TODO(dekkagaijin): use the docker/distribution regexes for validation.
+	tagChars = "abcdefghijklmnopqrstuvwxyz0123456789_-.ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+	tagDelim = ":"
+)
+
+// Tag stores a docker tag name in a structured form.
+type Tag struct {
+	Repository
+	tag      string
+	original string
+}
+
+// Ensure Tag implements Reference
+var _ Reference = (*Tag)(nil)
+
+// Context implements Reference.
+func (t Tag) Context() Repository {
+	return t.Repository
+}
+
+// Identifier implements Reference.
+func (t Tag) Identifier() string {
+	return t.TagStr()
+}
+
+// TagStr returns the tag component of the Tag.
+func (t Tag) TagStr() string {
+	return t.tag
+}
+
+// Name returns the name from which the Tag was derived.
+func (t Tag) Name() string {
+	return t.Repository.Name() + tagDelim + t.TagStr()
+}
+
+// String returns the original input string.
+func (t Tag) String() string {
+	return t.original
+}
+
+// Scope returns the scope required to perform the given action on the tag.
+func (t Tag) Scope(action string) string {
+	return t.Repository.Scope(action)
+}
+
+func checkTag(name string) error {
+	return checkElement("tag", name, tagChars, 1, 128)
+}
+
+// NewTag returns a new Tag representing the given name, according to the given strictness.
+func NewTag(name string, opts ...Option) (Tag, error) {
+	opt := makeOptions(opts...)
+	base := name
+	tag := ""
+
+	// Split on ":"
+	parts := strings.Split(name, tagDelim)
+	// Verify that we aren't confusing a tag for a hostname w/ port for the purposes of weak validation.
+	if len(parts) > 1 && !strings.Contains(parts[len(parts)-1], regRepoDelimiter) {
+		base = strings.Join(parts[:len(parts)-1], tagDelim)
+		tag = parts[len(parts)-1]
+	}
+
+	// We don't require a tag, but if we get one check it's valid,
+	// even when not being strict.
+	// If we are being strict, we want to validate the tag regardless in case
+	// it's empty.
+	if tag != "" || opt.strict {
+		if err := checkTag(tag); err != nil {
+			return Tag{}, err
+		}
+	}
+
+	if tag == "" {
+		tag = opt.defaultTag
+	}
+
+	repo, err := NewRepository(base, opts...)
+	if err != nil {
+		return Tag{}, err
+	}
+	return Tag{
+		Repository: repo,
+		tag:        tag,
+		original:   name,
+	}, nil
+}