31cfad91e3
This change creates a few simple interfaces for coreos-specific configuration options and moves things to them wherever possible; so if an option needs to write a file, or create a unit, it is acted on exactly the same way as every other file/unit that needs to be written during the cloud configuration process.
47 lines
823 B
Go
47 lines
823 B
Go
package initialize
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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/system"
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)
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const DefaultIpv4Address = "127.0.0.1"
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type EtcHosts string
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func (eh EtcHosts) generateEtcHosts() (out string, err error) {
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if eh != "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(root string) (*system.File, error) {
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if eh == "" {
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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 &system.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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