api changes for use without NodeInfo

Signed-off-by: Christian Goll <cgoll@suse.com>

internal/pkg/api/node/delete.go

@@ -0,0 +1,106 @@
+package apinode
+
+import (
+	"encoding/hex"
+	"fmt"
+	"os"
+
+	"github.com/hpcng/warewulf/internal/pkg/api/routes/wwapiv1"
+	"github.com/hpcng/warewulf/internal/pkg/node"
+	"github.com/hpcng/warewulf/internal/pkg/warewulfd"
+	"github.com/hpcng/warewulf/internal/pkg/wwlog"
+	"github.com/hpcng/warewulf/pkg/hostlist"
+	"github.com/pkg/errors"
+)
+
+// NodeDelete adds nodes for management by Warewulf.
+func NodeDelete(ndp *wwapiv1.NodeDeleteParameter) (err error) {
+
+	var nodeList []node.NodeConf
+	nodeList, err = NodeDeleteParameterCheck(ndp, false)
+	if err != nil {
+		return
+	}
+
+	nodeDB, err := node.New()
+	if err != nil {
+		wwlog.Error("Failed to open node database: %s", err)
+		return
+	}
+	dbHash := nodeDB.Hash()
+	if hex.EncodeToString(dbHash[:]) != ndp.Hash && !ndp.Force {
+		return fmt.Errorf("got wrong hash, not modifying node database")
+	}
+
+	for _, n := range nodeList {
+		err := nodeDB.DelNode(n.Id())
+		if err != nil {
+			wwlog.Error("%s", err)
+		} else {
+			//count++
+			wwlog.Verbose("Deleting node: %s\n", n.Id())
+		}
+	}
+
+	err = nodeDB.Persist()
+	if err != nil {
+		return errors.Wrap(err, "failed to persist nodedb")
+	}
+
+	err = warewulfd.DaemonReload()
+	if err != nil {
+		return errors.Wrap(err, "failed to reload warewulf daemon")
+	}
+	return
+}
+
+// NodeDeleteParameterCheck does error checking on NodeDeleteParameter.
+// Output to the console if console is true.
+// Returns the nodes to delete.
+func NodeDeleteParameterCheck(ndp *wwapiv1.NodeDeleteParameter, console bool) (nodeList []node.NodeConf, err error) {
+
+	if ndp == nil {
+		err = fmt.Errorf("NodeDeleteParameter is nil")
+		return
+	}
+
+	nodeDB, err := node.New()
+	if err != nil {
+		wwlog.Error("Failed to open node database: %s", err)
+		return
+	}
+	dbHash := nodeDB.Hash()
+	if hex.EncodeToString(dbHash[:]) != ndp.Hash && !ndp.Force {
+		wwlog.Debug("got hash: %s", ndp.Hash)
+		wwlog.Debug("actual hash: %s", hex.EncodeToString(dbHash[:]))
+		err = fmt.Errorf("got wrong hash, not modifying node database")
+		return
+	}
+
+	nodes, err := nodeDB.FindAllNodes()
+	if err != nil {
+		wwlog.Error("Could not get node list: %s", err)
+		return
+	}
+
+	node_args := hostlist.Expand(ndp.NodeNames)
+
+	for _, r := range node_args {
+		var match bool
+		for _, n := range nodes {
+			if n.Id() == r {
+				nodeList = append(nodeList, n)
+				match = true
+			}
+		}
+
+		if !match {
+			fmt.Fprintf(os.Stderr, "ERROR: No match for node: %s\n", r)
+		}
+	}
+
+	if len(nodeList) == 0 {
+		fmt.Printf("No nodes found\n")
+	}
+	return
+}