Files
warewulf/internal/pkg/configure/hostfile.go
Jonathon Anderson bc52f3b7d7 Recommended changes from review of #1568
- Make Resources an `interface{}` to support arbitrary yaml
- Remove `wwctl resource` as incompatible with arbitrary yaml
- Revert changes to host overlay templates
- Remove NFS mount options from warewulf.conf
- Replace NFS support / resource prefix with "fstab" resource
- Move resources to profiles
- Migrate warewulf.conf mounts to nodes.conf with `wwctl upgrade`
- Add documentation

Signed-off-by: Jonathon Anderson <janderson@ciq.com>
2025-01-17 10:33:37 -07:00

57 lines
1.2 KiB
Go

package configure
import (
"fmt"
"os"
"path"
"github.com/warewulf/warewulf/internal/pkg/node"
"github.com/warewulf/warewulf/internal/pkg/overlay"
"github.com/warewulf/warewulf/internal/pkg/util"
)
/*
Creates '/etc/hosts' from the host template.
*/
func Hostfile() (err error) {
overlay_ := overlay.GetOverlay("host")
hostTemplate := path.Join(overlay_.Rootfs(), "/etc/hosts.ww")
if !(util.IsFile(hostTemplate)) {
return fmt.Errorf("'the overlay template '/etc/hosts.ww' does not exists in 'host' overlay")
}
var allNodes []node.Node
if nodeDB, err := node.New(); err != nil {
return err
} else {
allNodes, err = nodeDB.FindAllNodes()
if err != nil {
return err
}
}
hostname, _ := os.Hostname()
tstruct, err := overlay.InitStruct(overlay_.Name(), node.NewNode(hostname), allNodes)
if err != nil {
return err
}
buffer, backupFile, writeFile, err := overlay.RenderTemplateFile(
hostTemplate,
tstruct)
if err != nil {
return
}
info, err := os.Stat(hostTemplate)
if err != nil {
return
}
if writeFile {
err = overlay.CarefulWriteBuffer("/etc/hosts", buffer, backupFile, info.Mode())
if err != nil {
return fmt.Errorf("could not write file from template: %w", err)
}
}
return
}