mirror of https://github.com/kubernetes/kops.git
135 lines
3.0 KiB
Go
135 lines
3.0 KiB
Go
/*
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Copyright 2020 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package nodetasks
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import (
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"fmt"
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"k8s.io/kops/pkg/apis/kops"
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"k8s.io/kops/pkg/kubeconfig"
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"k8s.io/kops/upup/pkg/fi"
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)
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type KubeConfig struct {
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Name string
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Cert fi.Resource
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Key fi.Resource
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CA fi.Resource
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ServerURL string
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config *fi.NodeupTaskDependentResource
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}
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var (
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_ fi.NodeupTask = &KubeConfig{}
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_ fi.HasName = &KubeConfig{}
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_ fi.NodeupHasDependencies = &KubeConfig{}
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)
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func (k *KubeConfig) GetName() *string {
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return &k.Name
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}
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// String returns a string representation, implementing the Stringer interface
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func (k *KubeConfig) String() string {
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return fmt.Sprintf("KubeConfig: %s", k.Name)
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}
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func (k *KubeConfig) GetDependencies(tasks map[string]fi.NodeupTask) []fi.NodeupTask {
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var deps []fi.NodeupTask
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if hasDep, ok := k.Cert.(fi.NodeupHasDependencies); ok {
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deps = append(deps, hasDep.GetDependencies(tasks)...)
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}
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if hasDep, ok := k.Key.(fi.NodeupHasDependencies); ok {
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deps = append(deps, hasDep.GetDependencies(tasks)...)
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}
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if hasDep, ok := k.CA.(fi.NodeupHasDependencies); ok {
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deps = append(deps, hasDep.GetDependencies(tasks)...)
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}
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return deps
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}
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func (k *KubeConfig) GetConfig() *fi.NodeupTaskDependentResource {
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if k.config == nil {
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k.config = &fi.NodeupTaskDependentResource{Task: k}
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}
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return k.config
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}
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func (k *KubeConfig) Run(_ *fi.NodeupContext) error {
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cert, err := fi.ResourceAsBytes(k.Cert)
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if err != nil {
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return err
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}
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key, err := fi.ResourceAsBytes(k.Key)
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if err != nil {
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return err
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}
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ca, err := fi.ResourceAsBytes(k.CA)
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if err != nil {
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return err
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}
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user := kubeconfig.KubectlUser{
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ClientCertificateData: cert,
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ClientKeyData: key,
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}
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cluster := kubeconfig.KubectlCluster{
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CertificateAuthorityData: ca,
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Server: k.ServerURL,
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}
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config := &kubeconfig.KubectlConfig{
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ApiVersion: "v1",
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Kind: "Config",
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Users: []*kubeconfig.KubectlUserWithName{
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{
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Name: k.Name,
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User: user,
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},
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},
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Clusters: []*kubeconfig.KubectlClusterWithName{
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{
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Name: "local",
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Cluster: cluster,
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},
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},
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Contexts: []*kubeconfig.KubectlContextWithName{
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{
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Name: "service-account-context",
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Context: kubeconfig.KubectlContext{
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Cluster: "local",
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User: k.Name,
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},
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},
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},
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CurrentContext: "service-account-context",
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}
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yaml, err := kops.ToRawYaml(config)
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if err != nil {
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return fmt.Errorf("error marshaling kubeconfig to yaml: %v", err)
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}
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output := k.GetConfig()
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output.Resource = fi.NewBytesResource(yaml)
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return nil
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}
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