Update go dependencies

This commit is contained in:
Manuel de Brito Fontes 2017-04-01 11:42:02 -03:00
parent e0561ddeb9
commit 88a2751234
1970 changed files with 413928 additions and 222867 deletions

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@ -1,39 +0,0 @@
package(default_visibility = ["//visibility:public"])
licenses(["notice"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_binary",
"go_library",
"go_test",
"cgo_library",
)
go_library(
name = "go_default_library",
srcs = [
"helpers.go",
"validate.go",
],
tags = ["automanaged"],
deps = [
"//pkg/api:go_default_library",
"//pkg/util:go_default_library",
"//pkg/util/config:go_default_library",
],
)
go_test(
name = "go_default_test",
srcs = ["validate_test.go"],
data = [
"testdata/profiles",
],
library = "go_default_library",
tags = ["automanaged"],
deps = [
"//pkg/api:go_default_library",
"//vendor:github.com/stretchr/testify/assert",
],
)

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@ -1,68 +0,0 @@
/*
Copyright 2016 The Kubernetes Authors.
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 apparmor
import (
"strings"
"k8s.io/kubernetes/pkg/api"
)
// TODO: Move these values into the API package.
const (
// The prefix to an annotation key specifying a container profile.
ContainerAnnotationKeyPrefix = "container.apparmor.security.beta.kubernetes.io/"
// The annotation key specifying the default AppArmor profile.
DefaultProfileAnnotationKey = "apparmor.security.beta.kubernetes.io/defaultProfileName"
// The annotation key specifying the allowed AppArmor profiles.
AllowedProfilesAnnotationKey = "apparmor.security.beta.kubernetes.io/allowedProfileNames"
// The profile specifying the runtime default.
ProfileRuntimeDefault = "runtime/default"
// The prefix for specifying profiles loaded on the node.
ProfileNamePrefix = "localhost/"
)
// Checks whether app armor is required for pod to be run.
func isRequired(pod *api.Pod) bool {
for key := range pod.Annotations {
if strings.HasPrefix(key, ContainerAnnotationKeyPrefix) {
return true
}
}
return false
}
// Returns the name of the profile to use with the container.
func GetProfileName(pod *api.Pod, containerName string) string {
return GetProfileNameFromPodAnnotations(pod.Annotations, containerName)
}
// GetProfileNameFromPodAnnotations gets the name of the profile to use with container from
// pod annotations
func GetProfileNameFromPodAnnotations(annotations map[string]string, containerName string) string {
return annotations[ContainerAnnotationKeyPrefix+containerName]
}
// Sets the name of the profile to use with the container.
func SetProfileName(pod *api.Pod, containerName, profileName string) error {
if pod.Annotations == nil {
pod.Annotations = map[string]string{}
}
pod.Annotations[ContainerAnnotationKeyPrefix+containerName] = profileName
return nil
}

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@ -1,227 +0,0 @@
/*
Copyright 2016 The Kubernetes Authors.
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 apparmor
import (
"bufio"
"errors"
"fmt"
"io/ioutil"
"os"
"path"
"strings"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/util"
utilconfig "k8s.io/kubernetes/pkg/util/config"
)
// Whether AppArmor should be disabled by default.
// Set to true if the wrong build tags are set (see validate_disabled.go).
var isDisabledBuild bool
// Interface for validating that a pod with with an AppArmor profile can be run by a Node.
type Validator interface {
Validate(pod *api.Pod) error
ValidateHost() error
}
func NewValidator(runtime string) Validator {
if err := validateHost(runtime); err != nil {
return &validator{validateHostErr: err}
}
appArmorFS, err := getAppArmorFS()
if err != nil {
return &validator{
validateHostErr: fmt.Errorf("error finding AppArmor FS: %v", err),
}
}
return &validator{
appArmorFS: appArmorFS,
}
}
type validator struct {
validateHostErr error
appArmorFS string
}
func (v *validator) Validate(pod *api.Pod) error {
if !isRequired(pod) {
return nil
}
if v.ValidateHost() != nil {
return v.validateHostErr
}
loadedProfiles, err := v.getLoadedProfiles()
if err != nil {
return fmt.Errorf("could not read loaded profiles: %v", err)
}
for _, container := range pod.Spec.InitContainers {
if err := validateProfile(GetProfileName(pod, container.Name), loadedProfiles); err != nil {
return err
}
}
for _, container := range pod.Spec.Containers {
if err := validateProfile(GetProfileName(pod, container.Name), loadedProfiles); err != nil {
return err
}
}
return nil
}
func (v *validator) ValidateHost() error {
return v.validateHostErr
}
// Verify that the host and runtime is capable of enforcing AppArmor profiles.
func validateHost(runtime string) error {
// Check feature-gates
if !utilconfig.DefaultFeatureGate.AppArmor() {
return errors.New("AppArmor disabled by feature-gate")
}
// Check build support.
if isDisabledBuild {
return errors.New("Binary not compiled for linux")
}
// Check kernel support.
if !IsAppArmorEnabled() {
return errors.New("AppArmor is not enabled on the host")
}
// Check runtime support. Currently only Docker is supported.
if runtime != "docker" {
return fmt.Errorf("AppArmor is only enabled for 'docker' runtime. Found: %q.", runtime)
}
return nil
}
// Verify that the profile is valid and loaded.
func validateProfile(profile string, loadedProfiles map[string]bool) error {
if err := ValidateProfileFormat(profile); err != nil {
return err
}
if strings.HasPrefix(profile, ProfileNamePrefix) {
profileName := strings.TrimPrefix(profile, ProfileNamePrefix)
if !loadedProfiles[profileName] {
return fmt.Errorf("profile %q is not loaded", profileName)
}
}
return nil
}
func ValidateProfileFormat(profile string) error {
if profile == "" || profile == ProfileRuntimeDefault {
return nil
}
if !strings.HasPrefix(profile, ProfileNamePrefix) {
return fmt.Errorf("invalid AppArmor profile name: %q", profile)
}
return nil
}
func (v *validator) getLoadedProfiles() (map[string]bool, error) {
profilesPath := path.Join(v.appArmorFS, "profiles")
profilesFile, err := os.Open(profilesPath)
if err != nil {
return nil, fmt.Errorf("failed to open %s: %v", profilesPath, err)
}
defer profilesFile.Close()
profiles := map[string]bool{}
scanner := bufio.NewScanner(profilesFile)
for scanner.Scan() {
profileName := parseProfileName(scanner.Text())
if profileName == "" {
// Unknown line format; skip it.
continue
}
profiles[profileName] = true
}
return profiles, nil
}
// The profiles file is formatted with one profile per line, matching a form:
// namespace://profile-name (mode)
// profile-name (mode)
// Where mode is {enforce, complain, kill}. The "namespace://" is only included for namespaced
// profiles. For the purposes of Kubernetes, we consider the namespace part of the profile name.
func parseProfileName(profileLine string) string {
modeIndex := strings.IndexRune(profileLine, '(')
if modeIndex < 0 {
return ""
}
return strings.TrimSpace(profileLine[:modeIndex])
}
func getAppArmorFS() (string, error) {
mountsFile, err := os.Open("/proc/mounts")
if err != nil {
return "", fmt.Errorf("could not open /proc/mounts: %v", err)
}
defer mountsFile.Close()
scanner := bufio.NewScanner(mountsFile)
for scanner.Scan() {
fields := strings.Fields(scanner.Text())
if len(fields) < 3 {
// Unknown line format; skip it.
continue
}
if fields[2] == "securityfs" {
appArmorFS := path.Join(fields[1], "apparmor")
if ok, err := util.FileExists(appArmorFS); !ok {
msg := fmt.Sprintf("path %s does not exist", appArmorFS)
if err != nil {
return "", fmt.Errorf("%s: %v", msg, err)
} else {
return "", errors.New(msg)
}
} else {
return appArmorFS, nil
}
}
}
if err := scanner.Err(); err != nil {
return "", fmt.Errorf("error scanning mounts: %v", err)
}
return "", errors.New("securityfs not found")
}
// IsAppArmorEnabled returns true if apparmor is enabled for the host.
// This function is forked from
// https://github.com/opencontainers/runc/blob/1a81e9ab1f138c091fe5c86d0883f87716088527/libcontainer/apparmor/apparmor.go
// to avoid the libapparmor dependency.
func IsAppArmorEnabled() bool {
if _, err := os.Stat("/sys/kernel/security/apparmor"); err == nil && os.Getenv("container") == "" {
if _, err = os.Stat("/sbin/apparmor_parser"); err == nil {
buf, err := ioutil.ReadFile("/sys/module/apparmor/parameters/enabled")
return err == nil && len(buf) > 1 && buf[0] == 'Y'
}
}
return false
}

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@ -1,24 +0,0 @@
// +build !linux
/*
Copyright 2016 The Kubernetes Authors.
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 apparmor
func init() {
// If Kubernetes was not built for linux, apparmor is always disabled.
isDisabledBuild = true
}

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@ -1,29 +0,0 @@
package(default_visibility = ["//visibility:public"])
licenses(["notice"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_binary",
"go_library",
"go_test",
"cgo_library",
)
go_library(
name = "go_default_library",
srcs = ["strategy.go"],
tags = ["automanaged"],
deps = [
"//pkg/api:go_default_library",
"//pkg/util/validation/field:go_default_library",
],
)
go_test(
name = "go_default_test",
srcs = ["strategy_test.go"],
library = "go_default_library",
tags = ["automanaged"],
deps = ["//pkg/api:go_default_library"],
)

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@ -1,149 +0,0 @@
/*
Copyright 2016 The Kubernetes Authors.
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 seccomp
import (
"fmt"
"strings"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/util/validation/field"
)
const (
// AllowAny is the wildcard used to allow any profile.
AllowAny = "*"
// The annotation key specifying the default seccomp profile.
DefaultProfileAnnotationKey = "seccomp.security.alpha.kubernetes.io/defaultProfileName"
// The annotation key specifying the allowed seccomp profiles.
AllowedProfilesAnnotationKey = "seccomp.security.alpha.kubernetes.io/allowedProfileNames"
)
// Strategy defines the interface for all seccomp constraint strategies.
type Strategy interface {
// Generate returns a profile based on constraint rules.
Generate(annotations map[string]string, pod *api.Pod) (string, error)
// Validate ensures that the specified values fall within the range of the strategy.
ValidatePod(pod *api.Pod) field.ErrorList
// Validate ensures that the specified values fall within the range of the strategy.
ValidateContainer(pod *api.Pod, container *api.Container) field.ErrorList
}
type strategy struct {
defaultProfile string
allowedProfiles map[string]bool
// For printing error messages (preserves order).
allowedProfilesString string
// does the strategy allow any profile (wildcard)
allowAnyProfile bool
}
var _ Strategy = &strategy{}
// NewStrategy creates a new strategy that enforces seccomp profile constraints.
func NewStrategy(pspAnnotations map[string]string) Strategy {
var allowedProfiles map[string]bool
allowAnyProfile := false
if allowed, ok := pspAnnotations[AllowedProfilesAnnotationKey]; ok {
profiles := strings.Split(allowed, ",")
allowedProfiles = make(map[string]bool, len(profiles))
for _, p := range profiles {
if p == AllowAny {
allowAnyProfile = true
continue
}
allowedProfiles[p] = true
}
}
return &strategy{
defaultProfile: pspAnnotations[DefaultProfileAnnotationKey],
allowedProfiles: allowedProfiles,
allowedProfilesString: pspAnnotations[AllowedProfilesAnnotationKey],
allowAnyProfile: allowAnyProfile,
}
}
// Generate returns a profile based on constraint rules.
func (s *strategy) Generate(annotations map[string]string, pod *api.Pod) (string, error) {
if annotations[api.SeccompPodAnnotationKey] != "" {
// Profile already set, nothing to do.
return annotations[api.SeccompPodAnnotationKey], nil
}
return s.defaultProfile, nil
}
// ValidatePod ensures that the specified values on the pod fall within the range
// of the strategy.
func (s *strategy) ValidatePod(pod *api.Pod) field.ErrorList {
allErrs := field.ErrorList{}
podSpecFieldPath := field.NewPath("pod", "metadata", "annotations").Key(api.SeccompPodAnnotationKey)
podProfile := pod.Annotations[api.SeccompPodAnnotationKey]
if !s.allowAnyProfile && len(s.allowedProfiles) == 0 && podProfile != "" {
allErrs = append(allErrs, field.Forbidden(podSpecFieldPath, "seccomp may not be set"))
return allErrs
}
if !s.profileAllowed(podProfile) {
msg := fmt.Sprintf("%s is not an allowed seccomp profile. Valid values are %v", podProfile, s.allowedProfilesString)
allErrs = append(allErrs, field.Forbidden(podSpecFieldPath, msg))
}
return allErrs
}
// ValidateContainer ensures that the specified values on the container fall within
// the range of the strategy.
func (s *strategy) ValidateContainer(pod *api.Pod, container *api.Container) field.ErrorList {
allErrs := field.ErrorList{}
fieldPath := field.NewPath("pod", "metadata", "annotations").Key(api.SeccompContainerAnnotationKeyPrefix + container.Name)
containerProfile := profileForContainer(pod, container)
if !s.allowAnyProfile && len(s.allowedProfiles) == 0 && containerProfile != "" {
allErrs = append(allErrs, field.Forbidden(fieldPath, "seccomp may not be set"))
return allErrs
}
if !s.profileAllowed(containerProfile) {
msg := fmt.Sprintf("%s is not an allowed seccomp profile. Valid values are %v", containerProfile, s.allowedProfilesString)
allErrs = append(allErrs, field.Forbidden(fieldPath, msg))
}
return allErrs
}
// profileAllowed checks if profile is in allowedProfiles or if allowedProfiles
// contains the wildcard.
func (s *strategy) profileAllowed(profile string) bool {
// for backwards compatibility and PSPs without a defined list of allowed profiles.
// If a PSP does not have allowedProfiles set then we should allow an empty profile.
// This will mean that the runtime default is used.
if len(s.allowedProfiles) == 0 && profile == "" {
return true
}
return s.allowAnyProfile || s.allowedProfiles[profile]
}
// profileForContainer returns the container profile if set, otherwise the pod profile.
func profileForContainer(pod *api.Pod, container *api.Container) string {
containerProfile, ok := pod.Annotations[api.SeccompContainerAnnotationKeyPrefix+container.Name]
if ok {
return containerProfile
}
return pod.Annotations[api.SeccompPodAnnotationKey]
}

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@ -1,36 +0,0 @@
package(default_visibility = ["//visibility:public"])
licenses(["notice"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_binary",
"go_library",
"go_test",
"cgo_library",
)
go_library(
name = "go_default_library",
srcs = [
"doc.go",
"util.go",
],
tags = ["automanaged"],
deps = [
"//pkg/api:go_default_library",
"//pkg/apis/extensions:go_default_library",
"//pkg/util/sets:go_default_library",
],
)
go_test(
name = "go_default_test",
srcs = ["util_test.go"],
library = "go_default_library",
tags = ["automanaged"],
deps = [
"//pkg/api:go_default_library",
"//pkg/apis/extensions:go_default_library",
],
)

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@ -1,19 +0,0 @@
/*
Copyright 2016 The Kubernetes Authors.
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 util contains utility code shared amongst different parts of the
// pod security policy apparatus.
package util

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@ -1,154 +0,0 @@
/*
Copyright 2016 The Kubernetes Authors.
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 util
import (
"fmt"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/apis/extensions"
"k8s.io/kubernetes/pkg/util/sets"
)
const (
ValidatedPSPAnnotation = "kubernetes.io/psp"
)
func GetAllFSTypesExcept(exceptions ...string) sets.String {
fstypes := GetAllFSTypesAsSet()
for _, e := range exceptions {
fstypes.Delete(e)
}
return fstypes
}
func GetAllFSTypesAsSet() sets.String {
fstypes := sets.NewString()
fstypes.Insert(
string(extensions.HostPath),
string(extensions.AzureFile),
string(extensions.Flocker),
string(extensions.FlexVolume),
string(extensions.EmptyDir),
string(extensions.GCEPersistentDisk),
string(extensions.AWSElasticBlockStore),
string(extensions.GitRepo),
string(extensions.Secret),
string(extensions.NFS),
string(extensions.ISCSI),
string(extensions.Glusterfs),
string(extensions.PersistentVolumeClaim),
string(extensions.RBD),
string(extensions.Cinder),
string(extensions.CephFS),
string(extensions.DownwardAPI),
string(extensions.FC),
string(extensions.ConfigMap),
string(extensions.VsphereVolume),
string(extensions.Quobyte),
string(extensions.AzureDisk),
string(extensions.PhotonPersistentDisk))
return fstypes
}
// getVolumeFSType gets the FSType for a volume.
func GetVolumeFSType(v api.Volume) (extensions.FSType, error) {
switch {
case v.HostPath != nil:
return extensions.HostPath, nil
case v.EmptyDir != nil:
return extensions.EmptyDir, nil
case v.GCEPersistentDisk != nil:
return extensions.GCEPersistentDisk, nil
case v.AWSElasticBlockStore != nil:
return extensions.AWSElasticBlockStore, nil
case v.GitRepo != nil:
return extensions.GitRepo, nil
case v.Secret != nil:
return extensions.Secret, nil
case v.NFS != nil:
return extensions.NFS, nil
case v.ISCSI != nil:
return extensions.ISCSI, nil
case v.Glusterfs != nil:
return extensions.Glusterfs, nil
case v.PersistentVolumeClaim != nil:
return extensions.PersistentVolumeClaim, nil
case v.RBD != nil:
return extensions.RBD, nil
case v.FlexVolume != nil:
return extensions.FlexVolume, nil
case v.Cinder != nil:
return extensions.Cinder, nil
case v.CephFS != nil:
return extensions.CephFS, nil
case v.Flocker != nil:
return extensions.Flocker, nil
case v.DownwardAPI != nil:
return extensions.DownwardAPI, nil
case v.FC != nil:
return extensions.FC, nil
case v.AzureFile != nil:
return extensions.AzureFile, nil
case v.ConfigMap != nil:
return extensions.ConfigMap, nil
case v.VsphereVolume != nil:
return extensions.VsphereVolume, nil
case v.Quobyte != nil:
return extensions.Quobyte, nil
case v.AzureDisk != nil:
return extensions.AzureDisk, nil
case v.PhotonPersistentDisk != nil:
return extensions.PhotonPersistentDisk, nil
}
return "", fmt.Errorf("unknown volume type for volume: %#v", v)
}
// fsTypeToStringSet converts an FSType slice to a string set.
func FSTypeToStringSet(fsTypes []extensions.FSType) sets.String {
set := sets.NewString()
for _, v := range fsTypes {
set.Insert(string(v))
}
return set
}
// PSPAllowsAllVolumes checks for FSTypeAll in the psp's allowed volumes.
func PSPAllowsAllVolumes(psp *extensions.PodSecurityPolicy) bool {
return PSPAllowsFSType(psp, extensions.All)
}
// PSPAllowsFSType is a utility for checking if a PSP allows a particular FSType.
// If all volumes are allowed then this will return true for any FSType passed.
func PSPAllowsFSType(psp *extensions.PodSecurityPolicy, fsType extensions.FSType) bool {
if psp == nil {
return false
}
for _, v := range psp.Spec.Volumes {
if v == fsType || v == extensions.All {
return true
}
}
return false
}
// FallsInRange is a utility to determine it the id falls in the valid range.
func FallsInRange(id int64, rng extensions.IDRange) bool {
return id >= rng.Min && id <= rng.Max
}