removed NodeInfo and using NodeConf instead

This is a significant change in the undelying data model!

nodeDb, err := node.New()

will result in a structure which contains the on disk
values. Only

nodeDb.FindAllNodes() or nodeDb.GetNode(id) will give
the nodes with its merged in profiles.

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

internal/pkg/api/node/status.go

@@ -0,0 +1,94 @@
+package apinode
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+
+	warewulfconf "github.com/warewulf/warewulf/internal/pkg/config"
+
+	"github.com/warewulf/warewulf/internal/pkg/api/routes/wwapiv1"
+	"github.com/warewulf/warewulf/internal/pkg/hostlist"
+	"github.com/warewulf/warewulf/internal/pkg/wwlog"
+)
+
+// NodeStatus returns the imaging state for nodes.
+// This requires warewulfd.
+func NodeStatus(nodeNames []string) (nodeStatusResponse *wwapiv1.NodeStatusResponse, err error) {
+
+	// Local structs for translating json from warewulfd.
+	type nodeStatusInternal struct {
+		NodeName string `json:"node name"`
+		Stage    string `json:"stage"`
+		Sent     string `json:"sent"`
+		Ipaddr   string `json:"ipaddr"`
+		Lastseen int64  `json:"last seen"`
+	}
+
+	// all status is a map with one key (nodes)
+	// and maps of [nodeName]NodeStatus underneath.
+	type allStatus struct {
+		Nodes map[string]*nodeStatusInternal `json:"nodes"`
+	}
+
+	controller := warewulfconf.Get()
+
+	if controller.Ipaddr == "" {
+		err = fmt.Errorf("the Warewulf Server IP Address is not properly configured")
+		wwlog.Error(fmt.Sprintf("%v", err.Error()))
+		return
+	}
+
+	statusURL := fmt.Sprintf("http://%s:%d/status", controller.Ipaddr, controller.Warewulf.Port)
+	wwlog.Verbose("Connecting to: %s", statusURL)
+
+	resp, err := http.Get(statusURL)
+	if err != nil {
+		wwlog.Error("Could not connect to Warewulf server: %s", err)
+		return
+	}
+	defer resp.Body.Close()
+
+	decoder := json.NewDecoder(resp.Body)
+	var wwNodeStatus allStatus
+
+	err = decoder.Decode(&wwNodeStatus)
+	if err != nil {
+		wwlog.Error("Could not decode JSON: %s", err)
+		return
+	}
+
+	// Translate struct and filter.
+	nodeStatusResponse = &wwapiv1.NodeStatusResponse{}
+
+	if len(nodeNames) == 0 {
+		for _, v := range wwNodeStatus.Nodes {
+			nodeStatusResponse.NodeStatus = append(nodeStatusResponse.NodeStatus,
+				&wwapiv1.NodeStatus{
+					NodeName: v.NodeName,
+					Stage:    v.Stage,
+					Sent:     v.Sent,
+					Ipaddr:   v.Ipaddr,
+					Lastseen: v.Lastseen,
+				})
+		}
+	} else {
+		nodeList := hostlist.Expand(nodeNames)
+		for _, v := range wwNodeStatus.Nodes {
+			for j := 0; j < len(nodeList); j++ {
+				if v.NodeName == nodeList[j] {
+					nodeStatusResponse.NodeStatus = append(nodeStatusResponse.NodeStatus,
+						&wwapiv1.NodeStatus{
+							NodeName: v.NodeName,
+							Stage:    v.Stage,
+							Sent:     v.Sent,
+							Ipaddr:   v.Ipaddr,
+							Lastseen: v.Lastseen,
+						})
+					break
+				}
+			}
+		}
+	}
+	return
+}