mirror of https://github.com/kubernetes/kops.git
136 lines
3.6 KiB
Go
136 lines
3.6 KiB
Go
/*
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Copyright 2019 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/nodeup/pkg/distros"
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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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// DirectoryBuilder creates required directories
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type DirectoryBuilder struct {
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*NodeupModelContext
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}
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var _ fi.ModelBuilder = &DirectoryBuilder{}
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// Build is responsible for specific directories are created - os dependent
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func (b *DirectoryBuilder) Build(c *fi.ModelBuilderContext) error {
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if b.Distribution == distros.DistributionContainerOS {
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dirname := "/home/kubernetes/bin"
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c.AddTask(&nodetasks.File{
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Path: dirname,
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Type: nodetasks.FileType_Directory,
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Mode: s("0755"),
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OnChangeExecute: [][]string{
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{"/bin/mount", "--bind", dirname, dirname},
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{"/bin/mount", "-o", "remount,exec", dirname},
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},
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})
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}
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// We try to put things into /opt/kops
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// On some OSes though, /opt/ is not writeable, and we can't even create the mountpoint
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if b.Distribution == distros.DistributionContainerOS {
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src := "/mnt/stateful_partition/opt/"
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c.AddTask(&nodetasks.File{
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Path: src,
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Type: nodetasks.FileType_Directory,
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Mode: s("0755"),
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})
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// Rebuild things we are masking
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c.AddTask(&nodetasks.File{
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Path: filepath.Join(src, "google"),
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Type: nodetasks.FileType_Directory,
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Mode: s("0755"),
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})
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c.AddTask(&nodetasks.File{
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Path: filepath.Join(src, "google", "crash-reporter"),
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Type: nodetasks.FileType_Directory,
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Mode: s("0755"),
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})
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c.AddTask(&nodetasks.File{
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Path: filepath.Join(src, "google", "crash-reporter", "filter"),
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Type: nodetasks.FileType_File,
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Mode: s("0755"),
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Contents: fi.NewStringResource(cosCrashFilter),
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})
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// Precreate the directory that will be /opt/kops, so we can bind remount it
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c.AddTask(&nodetasks.File{
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Path: filepath.Join(src, "kops"),
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Type: nodetasks.FileType_Directory,
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Mode: s("0755"),
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})
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c.AddTask(&nodetasks.File{
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Path: filepath.Join(src, "kops", "bin"),
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Type: nodetasks.FileType_Directory,
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Mode: s("0755"),
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})
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c.AddTask(&nodetasks.BindMount{
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Source: src,
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Mountpoint: "/opt",
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Options: []string{"ro"},
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})
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c.AddTask(&nodetasks.BindMount{
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Source: filepath.Join(src, "kops", "bin"),
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Mountpoint: "/opt/kops/bin",
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Options: []string{"exec", "nosuid", "nodev"},
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})
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// /opt/cni and /opt/cni/bin
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c.AddTask(&nodetasks.File{
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Path: filepath.Join(src, "cni"),
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Type: nodetasks.FileType_Directory,
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Mode: s("0755"),
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})
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c.AddTask(&nodetasks.File{
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Path: filepath.Join(src, "cni", "bin"),
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Type: nodetasks.FileType_Directory,
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Mode: s("0755"),
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})
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c.AddTask(&nodetasks.BindMount{
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Source: filepath.Join(src, "cni", "bin"),
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Mountpoint: "/opt/cni/bin",
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Options: []string{"exec", "nosuid", "nodev"},
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})
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}
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return nil
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}
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// cosCrashFilter is used on COS to prevent userspace crash-reporting
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// This is the one thing we need from /opt
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const cosCrashFilter = `#!/bin/bash
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# Copyright 2016 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# Do no collect any userland crash.
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exit 1
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`
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