79 lines
2.0 KiB
Go
79 lines
2.0 KiB
Go
package image
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import (
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"fmt"
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"os"
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"github.com/warewulf/warewulf/internal/pkg/node"
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"github.com/warewulf/warewulf/internal/pkg/util"
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"github.com/warewulf/warewulf/internal/pkg/wwlog"
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)
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func Delete(name string) error {
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// validate image names
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if !ValidSource(name) {
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return fmt.Errorf("image name is not valid source: %s", name)
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}
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nodeDB, err := node.New()
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if err != nil {
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return fmt.Errorf("could not open nodeDB: %s", err)
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}
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// check if the deleted images are not used by nodes
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for nodeName, node := range nodeDB.Nodes {
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if node.ImageName == name {
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return fmt.Errorf("image %s is in use by node %s, cannot delete", node.ImageName, nodeName)
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}
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}
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// check if the deleted images are not used by profiles
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for profileName, profile := range nodeDB.NodeProfiles {
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if profile.ImageName == name {
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return fmt.Errorf("image %s is in use by profile %s, cannot delete", profile.ImageName, profileName)
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}
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}
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// delete images
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if err := DeleteSource(name); err != nil {
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return fmt.Errorf("could not remove image source %s: %w", name, err)
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}
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if err := DeleteImage(name); err != nil {
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return fmt.Errorf("could not remove image file %s: %w", name, err)
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}
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wwlog.Info("Deleted image %q", name)
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return nil
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}
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/*
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Delete the chroot of an image
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*/
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func DeleteSource(name string) error {
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fullPath := SourceDir(name)
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wwlog.Verbose("Removing path: %s", fullPath)
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return os.RemoveAll(fullPath)
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}
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/*
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Delete the image of an image
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*/
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func DeleteImage(name string) error {
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imageFile := ImageFile(name)
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if util.IsFile(imageFile) {
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wwlog.Verbose("removing %s for image %s", imageFile, name)
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errImg := os.Remove(imageFile)
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wwlog.Verbose("removing %s for image %s", imageFile+".gz", name)
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errGz := os.Remove(imageFile + ".gz")
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if errImg != nil {
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return fmt.Errorf("problem deleting %s for image %s: %s", imageFile, name, errImg)
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}
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if errGz != nil {
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return fmt.Errorf("problem deleting %s for image %s: %s", imageFile+".gz", name, errGz)
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}
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return nil
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}
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return fmt.Errorf("image %s of image %s doesn't exist", imageFile, name)
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}
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