be68a8e5cc
Build tags are not compatible with block comments. Also adds copyright header to a few places it was missing.
63 lines
1.4 KiB
Go
63 lines
1.4 KiB
Go
// Copyright 2015 CoreOS, Inc.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package system
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import (
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"errors"
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"fmt"
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"os"
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"path"
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"github.com/coreos/coreos-cloudinit/config"
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)
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const DefaultIpv4Address = "127.0.0.1"
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type EtcHosts struct {
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config.EtcHosts
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}
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func (eh EtcHosts) generateEtcHosts() (out string, err error) {
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if eh.EtcHosts != "localhost" {
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return "", errors.New("Invalid option to manage_etc_hosts")
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}
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// use the operating system hostname
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hostname, err := os.Hostname()
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if err != nil {
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return "", err
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}
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return fmt.Sprintf("%s %s\n", DefaultIpv4Address, hostname), nil
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}
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func (eh EtcHosts) File() (*File, error) {
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if eh.EtcHosts == "" {
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return nil, nil
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}
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etcHosts, err := eh.generateEtcHosts()
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if err != nil {
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return nil, err
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}
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return &File{config.File{
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Path: path.Join("etc", "hosts"),
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RawFilePermissions: "0644",
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Content: etcHosts,
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}}, nil
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}
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