Rename "container" to "image"

- Updated `wwctl upgrade` to handle updates
- Maintained `.Container` and `.ContainerName` in tstruct
- Added `ContainerName()` methods to node and profile objects
- Added `--container`, `-C` aliases to wwctl commands (`<node|profile> <add|set>`)
- Added `wwctl container` alias
- Added support for `container_exit.sh` if `image_exit.sh` is not found

Signed-off-by: Jonathon Anderson <janderson@ciq.com>

internal/app/wwctl/image/rename/main.go

@@ -0,0 +1,44 @@
+package rename
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	api "github.com/warewulf/warewulf/internal/pkg/api/image"
+	"github.com/warewulf/warewulf/internal/pkg/api/routes/wwapiv1"
+	"github.com/warewulf/warewulf/internal/pkg/image"
+	"github.com/warewulf/warewulf/internal/pkg/wwlog"
+)
+
+func CobraRunE(cmd *cobra.Command, args []string) (err error) {
+	if len(args) != 2 {
+		return fmt.Errorf("rename requires 2 arguments: %d provided", len(args))
+	}
+
+	crp := &wwapiv1.ImageRenameParameter{
+		ImageName:  args[0],
+		TargetName: args[1],
+		Build:      SetBuild,
+	}
+
+	if !image.DoesSourceExist(crp.ImageName) {
+		return fmt.Errorf("%s source dir does not exist", crp.ImageName)
+	}
+
+	if image.DoesSourceExist(crp.TargetName) {
+		return fmt.Errorf("an other image with the name %s already exists", crp.TargetName)
+	}
+
+	if !image.ValidName(crp.TargetName) {
+		return fmt.Errorf("image name contains illegal characters : %s", crp.TargetName)
+	}
+
+	err = api.ImageRename(crp)
+	if err != nil {
+		err = fmt.Errorf("could not rename image: %s", err.Error())
+		return
+	}
+
+	wwlog.Info("Image %s successfully renamed as %s", crp.ImageName, crp.TargetName)
+	return
+}