restructure project

pkg/util/util.go

@@ -0,0 +1,62 @@
+package util
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"runtime"
+	"strings"
+
+	m "git.k-space.ee/k-space/logmower-shipper/pkg/mongo"
+)
+
+func ParseLogFilename(name string) (i m.KubeInfo, ok bool) {
+	name = filepath.Base(name)
+
+	// https://github.com/kubernetes/design-proposals-archive/blob/8da1442ea29adccea40693357d04727127e045ed/node/kubelet-cri-logging.md
+	// <pod_name>_<pod_namespace>_<container_name>-<container_id>.log`
+
+	i.Pod, name, ok = strings.Cut(name, "_")
+	if !ok {
+		return
+	}
+
+	i.Namespace, name, ok = strings.Cut(name, "_")
+	if !ok {
+		return
+	}
+
+	i.ContainerName, name, ok = strings.Cut(name, "-")
+	if !ok {
+		return
+	}
+
+	i.ContainerId = strings.TrimSuffix(name, ".log")
+	if !strings.HasSuffix(name, ".log") {
+		return
+	}
+
+	return i, true
+}
+
+func Hostinfo(nodeName string) (h m.Host, err error) {
+	if nodeName == "" {
+		nodeName, err = os.Hostname()
+		if err != nil {
+			return h, fmt.Errorf("getting hostname: %w", err)
+		}
+	}
+
+	h.Name = strings.TrimSpace(nodeName)
+
+	id, err := os.ReadFile("/etc/machine-id")
+	if err != nil {
+		return h, fmt.Errorf("getting machineId: %w", err)
+	}
+
+	h.Id = strings.TrimSpace(string(id))
+
+	h.Arch = runtime.GOARCH
+
+	return h, nil
+}