47 lines
1.2 KiB
Go
47 lines
1.2 KiB
Go
package configure
|
|
|
|
import (
|
|
"os"
|
|
"path"
|
|
|
|
"github.com/hpcng/warewulf/internal/pkg/node"
|
|
"github.com/hpcng/warewulf/internal/pkg/overlay"
|
|
"github.com/hpcng/warewulf/internal/pkg/util"
|
|
"github.com/hpcng/warewulf/internal/pkg/wwlog"
|
|
"github.com/pkg/errors"
|
|
)
|
|
|
|
/*
|
|
Creates '/etc/hosts' from the host template.
|
|
*/
|
|
func Hostfile() error {
|
|
if !(util.IsFile(path.Join(overlay.OverlaySourceDir("host"), "/host/etc/hosts.ww"))) {
|
|
wwlog.Error("'the overlay template '/etc/hosts.ww' does not exists in 'host' overlay\n")
|
|
os.Exit(1)
|
|
}
|
|
var nodeInfo node.NodeInfo
|
|
tstruct := overlay.InitStruct(nodeInfo)
|
|
hostname, _ := os.Hostname()
|
|
nodeInfo.Id.Set(hostname)
|
|
buffer, backupFile, writeFile, err := overlay.RenderTemplateFile(
|
|
path.Join(overlay.OverlaySourceDir("host"), "/host/etc/hosts.ww"),
|
|
tstruct)
|
|
if err != nil {
|
|
wwlog.Printf(wwlog.ERROR, "%s\n", err)
|
|
os.Exit(1)
|
|
}
|
|
info, err := os.Stat(path.Join(overlay.OverlaySourceDir("host"), "/host/etc/hosts.ww"))
|
|
if err != nil {
|
|
wwlog.Printf(wwlog.ERROR, "%s\n", err)
|
|
os.Exit(1)
|
|
}
|
|
|
|
if writeFile {
|
|
err = overlay.CarefulWriteBuffer("/etc/hosts", buffer, backupFile, info.Mode())
|
|
if err != nil {
|
|
return errors.Wrap(err, "could not write file from template")
|
|
}
|
|
}
|
|
return nil
|
|
}
|