mirror of https://github.com/kubernetes/kops.git
94 lines
2.6 KiB
Go
94 lines
2.6 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 model
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import (
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"path/filepath"
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"k8s.io/kops/pkg/wellknownusers"
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"k8s.io/kops/upup/pkg/fi"
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"k8s.io/kops/upup/pkg/fi/nodeup/nodetasks"
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)
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// KopsControllerBuilder installs the keys for a kops-controller.
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type KopsControllerBuilder struct {
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*NodeupModelContext
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}
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var _ fi.ModelBuilder = &KopsControllerBuilder{}
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// Build is responsible for configuring keys that will be used by kops-controller (via hostPath)
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func (b *KopsControllerBuilder) Build(c *fi.ModelBuilderContext) error {
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if !b.IsMaster {
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return nil
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}
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// Create the directory, even if we aren't going to populate it
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pkiDir := "/etc/kubernetes/kops-controller"
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c.AddTask(&nodetasks.File{
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Path: pkiDir,
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Type: nodetasks.FileType_Directory,
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Mode: s("0755"),
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})
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if !b.UseKopsControllerForNodeBootstrap() {
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return nil
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}
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// We run kops-controller under an unprivileged user (wellknownusers.KopsControllerID), and then grant specific permissions
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c.AddTask(&nodetasks.UserTask{
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Name: wellknownusers.KopsControllerName,
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UID: wellknownusers.KopsControllerID,
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Shell: "/sbin/nologin",
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})
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issueCert := &nodetasks.IssueCert{
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Name: "kops-controller",
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Signer: fi.CertificateIDCA,
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Type: "server",
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Subject: nodetasks.PKIXName{CommonName: "kops-controller"},
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AlternateNames: []string{b.Cluster.Spec.MasterInternalName},
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}
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c.AddTask(issueCert)
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certResource, keyResource, _ := issueCert.GetResources()
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c.AddTask(&nodetasks.File{
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Path: filepath.Join(pkiDir, "kops-controller.crt"),
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Contents: certResource,
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Type: nodetasks.FileType_File,
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Mode: s("0644"),
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Owner: s(wellknownusers.KopsControllerName),
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})
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c.AddTask(&nodetasks.File{
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Path: filepath.Join(pkiDir, "kops-controller.key"),
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Contents: keyResource,
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Type: nodetasks.FileType_File,
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Mode: s("0600"),
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Owner: s(wellknownusers.KopsControllerName),
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})
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for _, cert := range []string{fi.CertificateIDCA} {
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owner := wellknownusers.KopsControllerName
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err := b.BuildCertificatePairTask(c, cert, pkiDir, cert, &owner)
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if err != nil {
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return err
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}
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}
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return nil
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}
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