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This commit is contained in:
Manuel de Brito Fontes 2017-10-06 17:26:14 -03:00
parent 1e7489927c
commit bf5616c65b
14883 changed files with 3937406 additions and 361781 deletions
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50
vendor/k8s.io/kubernetes/cmd/kubeadm/app/phases/bootstraptoken/clusterinfo/BUILD generated vendored Normal file
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package(default_visibility = ["//visibility:public"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_library",
"go_test",
)
go_test(
name = "go_default_test",
srcs = ["clusterinfo_test.go"],
library = ":go_default_library",
deps = [
"//pkg/api:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/api/errors:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/runtime:go_default_library",
"//vendor/k8s.io/client-go/kubernetes/fake:go_default_library",
"//vendor/k8s.io/client-go/testing:go_default_library",
],
)
go_library(
name = "go_default_library",
srcs = ["clusterinfo.go"],
deps = [
"//cmd/kubeadm/app/util/apiclient:go_default_library",
"//pkg/apis/rbac/v1beta1:go_default_library",
"//pkg/bootstrap/api:go_default_library",
"//vendor/k8s.io/api/core/v1:go_default_library",
"//vendor/k8s.io/api/rbac/v1beta1:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//vendor/k8s.io/apiserver/pkg/authentication/user:go_default_library",
"//vendor/k8s.io/client-go/kubernetes:go_default_library",
"//vendor/k8s.io/client-go/tools/clientcmd:go_default_library",
"//vendor/k8s.io/client-go/tools/clientcmd/api:go_default_library",
],
)
filegroup(
name = "package-srcs",
srcs = glob(["**"]),
tags = ["automanaged"],
visibility = ["//visibility:private"],
)
filegroup(
name = "all-srcs",
srcs = [":package-srcs"],
tags = ["automanaged"],
)

105
vendor/k8s.io/kubernetes/cmd/kubeadm/app/phases/bootstraptoken/clusterinfo/clusterinfo.go generated vendored Normal file
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/*
Copyright 2017 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 clusterinfo
import (
"fmt"
"k8s.io/api/core/v1"
rbac "k8s.io/api/rbac/v1beta1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apiserver/pkg/authentication/user"
clientset "k8s.io/client-go/kubernetes"
"k8s.io/client-go/tools/clientcmd"
clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
"k8s.io/kubernetes/cmd/kubeadm/app/util/apiclient"
rbachelper "k8s.io/kubernetes/pkg/apis/rbac/v1beta1"
bootstrapapi "k8s.io/kubernetes/pkg/bootstrap/api"
)
const (
// BootstrapSignerClusterRoleName sets the name for the ClusterRole that allows access to ConfigMaps in the kube-public ns
BootstrapSignerClusterRoleName = "kubeadm:bootstrap-signer-clusterinfo"
)
// CreateBootstrapConfigMapIfNotExists creates the kube-public ConfigMap if it doesn't exist already
func CreateBootstrapConfigMapIfNotExists(client clientset.Interface, file string) error {
fmt.Printf("[bootstraptoken] Creating the %q ConfigMap in the %q namespace\n", bootstrapapi.ConfigMapClusterInfo, metav1.NamespacePublic)
adminConfig, err := clientcmd.LoadFromFile(file)
if err != nil {
return fmt.Errorf("failed to load admin kubeconfig [%v]", err)
}
adminCluster := adminConfig.Contexts[adminConfig.CurrentContext].Cluster
// Copy the cluster from admin.conf to the bootstrap kubeconfig, contains the CA cert and the server URL
bootstrapConfig := &clientcmdapi.Config{
Clusters: map[string]*clientcmdapi.Cluster{
"": adminConfig.Clusters[adminCluster],
},
}
bootstrapBytes, err := clientcmd.Write(*bootstrapConfig)
if err != nil {
return err
}
// Create or update the ConfigMap in the kube-public namespace
return apiclient.CreateOrUpdateConfigMap(client, &v1.ConfigMap{
ObjectMeta: metav1.ObjectMeta{
Name: bootstrapapi.ConfigMapClusterInfo,
Namespace: metav1.NamespacePublic,
},
Data: map[string]string{
bootstrapapi.KubeConfigKey: string(bootstrapBytes),
},
})
}
// CreateClusterInfoRBACRules creates the RBAC rules for exposing the cluster-info ConfigMap in the kube-public namespace to unauthenticated users
func CreateClusterInfoRBACRules(client clientset.Interface) error {
err := apiclient.CreateOrUpdateRole(client, &rbac.Role{
ObjectMeta: metav1.ObjectMeta{
Name: BootstrapSignerClusterRoleName,
Namespace: metav1.NamespacePublic,
},
Rules: []rbac.PolicyRule{
rbachelper.NewRule("get").Groups("").Resources("configmaps").Names(bootstrapapi.ConfigMapClusterInfo).RuleOrDie(),
},
})
if err != nil {
return err
}
return apiclient.CreateOrUpdateRoleBinding(client, &rbac.RoleBinding{
ObjectMeta: metav1.ObjectMeta{
Name: BootstrapSignerClusterRoleName,
Namespace: metav1.NamespacePublic,
},
RoleRef: rbac.RoleRef{
APIGroup: rbac.GroupName,
Kind: "Role",
Name: BootstrapSignerClusterRoleName,
},
Subjects: []rbac.Subject{
{
Kind: rbac.UserKind,
Name: user.Anonymous,
},
},
})
}

113
vendor/k8s.io/kubernetes/cmd/kubeadm/app/phases/bootstraptoken/clusterinfo/clusterinfo_test.go generated vendored Normal file
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/*
Copyright 2017 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 clusterinfo
import (
"io/ioutil"
"os"
"testing"
"text/template"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/runtime"
clientsetfake "k8s.io/client-go/kubernetes/fake"
core "k8s.io/client-go/testing"
"k8s.io/kubernetes/pkg/api"
)
var testConfigTempl = template.Must(template.New("test").Parse(`apiVersion: v1
clusters:
- cluster:
server: {{.Server}}
name: kubernetes
contexts:
- context:
cluster: kubernetes
user: kubernetes-admin
name: kubernetes-admin@kubernetes
current-context: kubernetes-admin@kubernetes
kind: Config
preferences: {}
users:
- name: kubernetes-admin`))
func TestCreateBootstrapConfigMapIfNotExists(t *testing.T) {
tests := []struct {
name string
createErr error
updateErr error
expectErr bool
}{
{
"successful case should have no error",
nil,
nil,
false,
},
{
"if both create and update errors, return error",
apierrors.NewAlreadyExists(api.Resource("configmaps"), "test"),
apierrors.NewUnauthorized("go away!"),
true,
},
{
"unexpected error should be returned",
apierrors.NewUnauthorized("go away!"),
nil,
true,
},
}
servers := []struct {
Server string
}{
{Server: "https://10.128.0.6:6443"},
{Server: "https://[2001:db8::6]:3446"},
}
for _, server := range servers {
file, err := ioutil.TempFile("", "")
if err != nil {
t.Fatalf("could not create tempfile: %v", err)
}
defer os.Remove(file.Name())
if err := testConfigTempl.Execute(file, server); err != nil {
t.Fatalf("could not write to tempfile: %v", err)
}
if err := file.Close(); err != nil {
t.Fatalf("could not close tempfile: %v", err)
}
for _, tc := range tests {
client := clientsetfake.NewSimpleClientset()
if tc.createErr != nil {
client.PrependReactor("create", "configmaps", func(action core.Action) (bool, runtime.Object, error) {
return true, nil, tc.createErr
})
}
err := CreateBootstrapConfigMapIfNotExists(client, file.Name())
if tc.expectErr && err == nil {
t.Errorf("CreateBootstrapConfigMapIfNotExists(%s) wanted error, got nil", tc.name)
} else if !tc.expectErr && err != nil {
t.Errorf("CreateBootstrapConfigMapIfNotExists(%s) returned unexpected error: %v", tc.name, err)
}
}
}
}

48
vendor/k8s.io/kubernetes/cmd/kubeadm/app/phases/bootstraptoken/node/BUILD generated vendored Normal file
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package(default_visibility = ["//visibility:public"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_library",
"go_test",
)
go_test(
name = "go_default_test",
srcs = ["token_test.go"],
library = ":go_default_library",
deps = ["//cmd/kubeadm/app/apis/kubeadm:go_default_library"],
)
go_library(
name = "go_default_library",
srcs = [
"tlsbootstrap.go",
"token.go",
],
deps = [
"//cmd/kubeadm/app/constants:go_default_library",
"//cmd/kubeadm/app/util/apiclient:go_default_library",
"//cmd/kubeadm/app/util/token:go_default_library",
"//pkg/apis/rbac/v1beta1:go_default_library",
"//pkg/bootstrap/api:go_default_library",
"//pkg/util/version:go_default_library",
"//vendor/k8s.io/api/core/v1:go_default_library",
"//vendor/k8s.io/api/rbac/v1beta1:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/api/errors:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//vendor/k8s.io/client-go/kubernetes:go_default_library",
],
)
filegroup(
name = "package-srcs",
srcs = glob(["**"]),
tags = ["automanaged"],
visibility = ["//visibility:private"],
)
filegroup(
name = "all-srcs",
srcs = [":package-srcs"],
tags = ["automanaged"],
)

106
vendor/k8s.io/kubernetes/cmd/kubeadm/app/phases/bootstraptoken/node/tlsbootstrap.go generated vendored Normal file
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/*
Copyright 2017 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 node
import (
"fmt"
rbac "k8s.io/api/rbac/v1beta1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
clientset "k8s.io/client-go/kubernetes"
"k8s.io/kubernetes/cmd/kubeadm/app/constants"
"k8s.io/kubernetes/cmd/kubeadm/app/util/apiclient"
rbachelper "k8s.io/kubernetes/pkg/apis/rbac/v1beta1"
"k8s.io/kubernetes/pkg/util/version"
)
const (
// NodeBootstrapperClusterRoleName defines the name of the auto-bootstrapped ClusterRole for letting someone post a CSR
// TODO: This value should be defined in an other, generic authz package instead of here
NodeBootstrapperClusterRoleName = "system:node-bootstrapper"
// NodeKubeletBootstrap defines the name of the ClusterRoleBinding that lets kubelets post CSRs
NodeKubeletBootstrap = "kubeadm:kubelet-bootstrap"
// CSRAutoApprovalClusterRoleName defines the name of the auto-bootstrapped ClusterRole for making the csrapprover controller auto-approve the CSR
// TODO: This value should be defined in an other, generic authz package instead of here
CSRAutoApprovalClusterRoleName = "system:certificates.k8s.io:certificatesigningrequests:nodeclient"
// NodeAutoApproveBootstrapClusterRoleBinding defines the name of the ClusterRoleBinding that makes the csrapprover approve node CSRs
NodeAutoApproveBootstrapClusterRoleBinding = "kubeadm:node-autoapprove-bootstrap"
)
// AllowBootstrapTokensToPostCSRs creates RBAC rules in a way the makes Node Bootstrap Tokens able to post CSRs
func AllowBootstrapTokensToPostCSRs(client clientset.Interface, k8sVersion *version.Version) error {
fmt.Println("[bootstraptoken] Configured RBAC rules to allow Node Bootstrap tokens to post CSRs in order for nodes to get long term certificate credentials")
return apiclient.CreateOrUpdateClusterRoleBinding(client, &rbac.ClusterRoleBinding{
ObjectMeta: metav1.ObjectMeta{
Name: NodeKubeletBootstrap,
},
RoleRef: rbac.RoleRef{
APIGroup: rbac.GroupName,
Kind: "ClusterRole",
Name: NodeBootstrapperClusterRoleName,
},
Subjects: []rbac.Subject{
{
Kind: rbac.GroupKind,
Name: constants.GetNodeBootstrapTokenAuthGroup(k8sVersion),
},
},
})
}
// AutoApproveNodeBootstrapTokens creates RBAC rules in a way that makes Node Bootstrap Tokens' CSR auto-approved by the csrapprover controller
func AutoApproveNodeBootstrapTokens(client clientset.Interface, k8sVersion *version.Version) error {
fmt.Println("[bootstraptoken] Configured RBAC rules to allow the csrapprover controller automatically approve CSRs from a Node Bootstrap Token")
// TODO: When the v1.9 cycle starts (targeting v1.9 at HEAD) and v1.8.0 is the minimum supported version, we can remove this function as the ClusterRole will always exist
if k8sVersion.LessThan(constants.MinimumCSRAutoApprovalClusterRolesVersion) {
err := apiclient.CreateOrUpdateClusterRole(client, &rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{
Name: CSRAutoApprovalClusterRoleName,
},
Rules: []rbac.PolicyRule{
rbachelper.NewRule("create").Groups("certificates.k8s.io").Resources("certificatesigningrequests/nodeclient").RuleOrDie(),
},
})
if err != nil {
return err
}
}
// Always create this kubeadm-specific binding though
return apiclient.CreateOrUpdateClusterRoleBinding(client, &rbac.ClusterRoleBinding{
ObjectMeta: metav1.ObjectMeta{
Name: NodeAutoApproveBootstrapClusterRoleBinding,
},
RoleRef: rbac.RoleRef{
APIGroup: rbac.GroupName,
Kind: "ClusterRole",
Name: CSRAutoApprovalClusterRoleName,
},
Subjects: []rbac.Subject{
{
Kind: "Group",
Name: constants.GetNodeBootstrapTokenAuthGroup(k8sVersion),
},
},
})
}

112
vendor/k8s.io/kubernetes/cmd/kubeadm/app/phases/bootstraptoken/node/token.go generated vendored Normal file
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/*
Copyright 2017 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 node
import (
"fmt"
"strings"
"time"
"k8s.io/api/core/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
clientset "k8s.io/client-go/kubernetes"
tokenutil "k8s.io/kubernetes/cmd/kubeadm/app/util/token"
bootstrapapi "k8s.io/kubernetes/pkg/bootstrap/api"
)
const tokenCreateRetries = 5
// TODO(mattmoyer): Move CreateNewToken, UpdateOrCreateToken and encodeTokenSecretData out of this package to client-go for a generic abstraction and client for a Bootstrap Token
// CreateNewToken tries to create a token and fails if one with the same ID already exists
func CreateNewToken(client clientset.Interface, token string, tokenDuration time.Duration, usages []string, extraGroups []string, description string) error {
return UpdateOrCreateToken(client, token, true, tokenDuration, usages, extraGroups, description)
}
// UpdateOrCreateToken attempts to update a token with the given ID, or create if it does not already exist.
func UpdateOrCreateToken(client clientset.Interface, token string, failIfExists bool, tokenDuration time.Duration, usages []string, extraGroups []string, description string) error {
tokenID, tokenSecret, err := tokenutil.ParseToken(token)
if err != nil {
return err
}
secretName := fmt.Sprintf("%s%s", bootstrapapi.BootstrapTokenSecretPrefix, tokenID)
var lastErr error
for i := 0; i < tokenCreateRetries; i++ {
secret, err := client.CoreV1().Secrets(metav1.NamespaceSystem).Get(secretName, metav1.GetOptions{})
if err == nil {
if failIfExists {
return fmt.Errorf("a token with id %q already exists", tokenID)
}
// Secret with this ID already exists, update it:
secret.Data = encodeTokenSecretData(tokenID, tokenSecret, tokenDuration, usages, extraGroups, description)
if _, err := client.CoreV1().Secrets(metav1.NamespaceSystem).Update(secret); err == nil {
return nil
}
lastErr = err
continue
}
// Secret does not already exist:
if apierrors.IsNotFound(err) {
secret = &v1.Secret{
ObjectMeta: metav1.ObjectMeta{
Name: secretName,
},
Type: v1.SecretType(bootstrapapi.SecretTypeBootstrapToken),
Data: encodeTokenSecretData(tokenID, tokenSecret, tokenDuration, usages, extraGroups, description),
}
if _, err := client.CoreV1().Secrets(metav1.NamespaceSystem).Create(secret); err == nil {
return nil
}
lastErr = err
continue
}
}
return fmt.Errorf(
"unable to create bootstrap token after %d attempts [%v]",
tokenCreateRetries,
lastErr,
)
}
// encodeTokenSecretData takes the token discovery object and an optional duration and returns the .Data for the Secret
func encodeTokenSecretData(tokenID, tokenSecret string, duration time.Duration, usages []string, extraGroups []string, description string) map[string][]byte {
data := map[string][]byte{
bootstrapapi.BootstrapTokenIDKey: []byte(tokenID),
bootstrapapi.BootstrapTokenSecretKey: []byte(tokenSecret),
}
if len(extraGroups) > 0 {
data[bootstrapapi.BootstrapTokenExtraGroupsKey] = []byte(strings.Join(extraGroups, ","))
}
if duration > 0 {
// Get the current time, add the specified duration, and format it accordingly
durationString := time.Now().Add(duration).Format(time.RFC3339)
data[bootstrapapi.BootstrapTokenExpirationKey] = []byte(durationString)
}
if len(description) > 0 {
data[bootstrapapi.BootstrapTokenDescriptionKey] = []byte(description)
}
for _, usage := range usages {
// TODO: Validate the usage string here before
data[bootstrapapi.BootstrapTokenUsagePrefix+usage] = []byte("true")
}
return data
}

59
vendor/k8s.io/kubernetes/cmd/kubeadm/app/phases/bootstraptoken/node/token_test.go generated vendored Normal file
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/*
Copyright 2017 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 node
import (
"bytes"
"testing"
"time"
kubeadmapi "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
)
func TestEncodeTokenSecretData(t *testing.T) {
var tests = []struct {
token *kubeadmapi.TokenDiscovery
t time.Duration
}{
{token: &kubeadmapi.TokenDiscovery{ID: "foo", Secret: "bar"}}, // should use default
{token: &kubeadmapi.TokenDiscovery{ID: "foo", Secret: "bar"}, t: time.Second}, // should use default
}
for _, rt := range tests {
actual := encodeTokenSecretData(rt.token.ID, rt.token.Secret, rt.t, []string{}, []string{}, "")
if !bytes.Equal(actual["token-id"], []byte(rt.token.ID)) {
t.Errorf(
"failed EncodeTokenSecretData:\n\texpected: %s\n\t actual: %s",
rt.token.ID,
actual["token-id"],
)
}
if !bytes.Equal(actual["token-secret"], []byte(rt.token.Secret)) {
t.Errorf(
"failed EncodeTokenSecretData:\n\texpected: %s\n\t actual: %s",
rt.token.Secret,
actual["token-secret"],
)
}
if rt.t > 0 {
if actual["expiration"] == nil {
t.Errorf(
"failed EncodeTokenSecretData, duration was not added to time",
)
}
}
}
}