141 lines
4.2 KiB
Go
141 lines
4.2 KiB
Go
package edit
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"path"
|
|
"path/filepath"
|
|
|
|
"github.com/hpcng/warewulf/internal/pkg/config"
|
|
"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"
|
|
"github.com/spf13/cobra"
|
|
)
|
|
|
|
func CobraRunE(cmd *cobra.Command, args []string) error {
|
|
editor := os.Getenv("EDITOR")
|
|
var overlaySourceDir string
|
|
|
|
overlayKind := args[0]
|
|
overlayName := args[1]
|
|
fileName := args[2]
|
|
|
|
if overlayKind != "system" && overlayKind != "runtime" {
|
|
return errors.New("overlay kind must be of type 'system' or 'runtime'")
|
|
}
|
|
|
|
if editor == "" {
|
|
editor = "/bin/vi"
|
|
}
|
|
|
|
if overlayKind == "system" {
|
|
overlaySourceDir = config.SystemOverlaySource(overlayName)
|
|
} else if overlayKind == "runtime" {
|
|
overlaySourceDir = config.RuntimeOverlaySource(overlayName)
|
|
}
|
|
|
|
if !util.IsDir(overlaySourceDir) {
|
|
wwlog.Printf(wwlog.ERROR, "Overlay does not exist: %s:%s\n", overlayKind, overlayName)
|
|
os.Exit(1)
|
|
}
|
|
|
|
overlayFile := path.Join(overlaySourceDir, fileName)
|
|
|
|
wwlog.Printf(wwlog.DEBUG, "Will edit overlay file: %s\n", overlayFile)
|
|
|
|
if CreateDirs {
|
|
err := os.MkdirAll(path.Dir(overlayFile), 0755)
|
|
if err != nil {
|
|
wwlog.Printf(wwlog.ERROR, "Could not create directory: %s\n", path.Dir(overlayFile))
|
|
os.Exit(1)
|
|
}
|
|
} else {
|
|
if !util.IsDir(path.Dir(overlayFile)) {
|
|
wwlog.Printf(wwlog.ERROR, "Can not create file, parent directory does not exist, try adding the\n")
|
|
wwlog.Printf(wwlog.ERROR, "'--parents' option to create the directory.\n")
|
|
os.Exit(1)
|
|
}
|
|
}
|
|
|
|
if !util.IsFile(overlayFile) && filepath.Ext(overlayFile) == ".ww" {
|
|
wwlog.Printf(wwlog.WARN, "This is a new file, creating some default content\n")
|
|
|
|
w, err := os.OpenFile(overlayFile, os.O_RDWR|os.O_CREATE, os.FileMode(PermMode))
|
|
if err != nil {
|
|
wwlog.Printf(wwlog.WARN, "Could not create file for writing: %s\n", err)
|
|
}
|
|
|
|
fmt.Fprintf(w, "# This is a Warewulf Template file.\n")
|
|
fmt.Fprintf(w, "#\n")
|
|
fmt.Fprintf(w, "# This file (suffix '.ww') will be automatically rewritten without the suffix\n")
|
|
fmt.Fprintf(w, "# when the overlay is rendered for the individual nodes. Here are some examples\n")
|
|
fmt.Fprintf(w, "# of macros and logic which can be used within this file:\n")
|
|
fmt.Fprintf(w, "#\n")
|
|
fmt.Fprintf(w, "# Node FQDN = {{.Id}}\n")
|
|
fmt.Fprintf(w, "# Node Cluster = {{.ClusterName}}\n")
|
|
fmt.Fprintf(w, "# Network Config = {{.NetDevs.eth0.Ipaddr}}, {{.NetDevs.eth0.Hwaddr}}, etc.\n")
|
|
fmt.Fprintf(w, "#\n")
|
|
fmt.Fprintf(w, "# Goto the documentation pages for more information: http://www.hpcng.org/...\n")
|
|
fmt.Fprintf(w, "\n")
|
|
}
|
|
|
|
shasum1, err := util.ShaSumFile(overlayFile)
|
|
if err != nil {
|
|
wwlog.Printf(wwlog.WARN, "Could not open overlay file for checksum: %s\n", err)
|
|
}
|
|
|
|
err = util.ExecInteractive(editor, overlayFile)
|
|
if err != nil {
|
|
wwlog.Printf(wwlog.ERROR, "Editor process existed with non-zero\n")
|
|
os.Exit(1)
|
|
}
|
|
wwlog.Printf(wwlog.INFO, "Updated: %s:%s:%s\n", overlayKind, overlayName, fileName)
|
|
|
|
shasum2, err := util.ShaSumFile(overlayFile)
|
|
if err != nil {
|
|
wwlog.Printf(wwlog.WARN, "Could not open overlay file for checksum: %s\n", err)
|
|
}
|
|
|
|
if shasum1 == shasum2 {
|
|
wwlog.Printf(wwlog.VERBOSE, "Not updating overlays, no file change\n")
|
|
NoOverlayUpdate = true
|
|
}
|
|
|
|
if !NoOverlayUpdate {
|
|
n, err := node.New()
|
|
if err != nil {
|
|
wwlog.Printf(wwlog.ERROR, "Could not open node configuration: %s\n", err)
|
|
os.Exit(1)
|
|
}
|
|
|
|
nodes, err := n.FindAllNodes()
|
|
if err != nil {
|
|
wwlog.Printf(wwlog.ERROR, "Could not get node list: %s\n", err)
|
|
os.Exit(1)
|
|
}
|
|
|
|
var updateNodes []node.NodeInfo
|
|
|
|
for _, node := range nodes {
|
|
if overlayKind == "system" && node.SystemOverlay.Get() == overlayName {
|
|
updateNodes = append(updateNodes, node)
|
|
} else if overlayKind == "runtime" && node.RuntimeOverlay.Get() == overlayName {
|
|
updateNodes = append(updateNodes, node)
|
|
}
|
|
}
|
|
|
|
if overlayKind == "system" {
|
|
wwlog.Printf(wwlog.INFO, "Updating System Overlays...\n")
|
|
return overlay.BuildSystemOverlay(updateNodes)
|
|
} else if overlayKind == "runtime" {
|
|
wwlog.Printf(wwlog.INFO, "Updating Runtime Overlays...\n")
|
|
return overlay.BuildRuntimeOverlay(updateNodes)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|