update(k8s): use time_on_duty in export and ui

app/routes/export.py

@@ -1,13 +1,57 @@
 from fastapi import APIRouter, Response
 from database import fetch_all
 from kubernetes import client, config
+from datetime import datetime, timezone
 import yaml
 import json
-import logging
 
 router = APIRouter()
 
 # Helper functions for conversions
+def calculate_time_on_duty(creation_timestamp):
+    """
+    Calculate the time on duty in hours, days, or minutes from the creation timestamp.
+    """
+    now = datetime.now(timezone.utc)
+    delta = now - creation_timestamp
+
+    # If less than an hour, return minutes
+    if delta.days < 1 and delta.seconds < 3600:
+        minutes = delta.seconds // 60
+        return f"{minutes} minutes" if minutes > 1 else "less than a minute"
+    
+    # If less than a day, return hours
+    if delta.days < 1:
+        hours = delta.seconds // 3600
+        return f"{hours} hours" if hours > 1 else "1 hour"
+
+    # Otherwise, return days
+    return f"{delta.days} days" if delta.days > 1 else "1 day"
+
+def convert_memory_to_gb(memory):
+    """
+    Convert memory to GB (gigabytes) for ephemeral-storage.
+    """
+    if "Ki" in memory:
+        return int(memory.replace("Ki", "")) / (1024 ** 2)
+    elif "Mi" in memory:
+        return int(memory.replace("Mi", "")) / 1024
+    elif "Gi" in memory:
+        return int(memory.replace("Gi", ""))
+    return float(memory)
+
+def convert_memory_to_mib(memory):
+    """
+    Convert memory to MiB (mebibytes).
+    """
+    if "Ki" in memory:
+        return int(memory.replace("Ki", "")) / 1024
+    elif "Mi" in memory:
+        return int(memory.replace("Mi", ""))
+    elif "Gi" in memory:
+        return int(memory.replace("Gi", "")) * 1024
+    return float(memory)
+
 def convert_cpu_to_cores(cpu):
     """
     Convert CPU usage to cores for human-readable format.
@@ -22,19 +66,6 @@ def convert_cpu_to_cores(cpu):
         return round(int(cpu.replace("m", "")) / 1000, 4)
     return float(cpu)  # Already in cores
 
-def convert_memory_to_mib(memory):
-    """
-    Convert memory to MiB (mebibytes).
-    Handles units: Ki (kibibytes), Mi (mebibytes), Gi (gibibytes).
-    """
-    if "Ki" in memory:
-        return int(memory.replace("Ki", "")) / 1024
-    elif "Mi" in memory:
-        return int(memory.replace("Mi", ""))
-    elif "Gi" in memory:
-        return int(memory.replace("Gi", "")) * 1024
-    return float(memory)
-
 # Fetch Kubernetes data with namespace resource usage
 def fetch_k8s_data_with_usage():
     config.load_incluster_config()
@@ -47,6 +78,10 @@ def fetch_k8s_data_with_usage():
         # Extract storage (ephemeral-storage) and instance type
         ephemeral_storage = node.status.capacity.get("ephemeral-storage", "0")
         instance_type = node.metadata.labels.get("beta.kubernetes.io/instance-type", "N/A")
+        creation_timestamp = node.metadata.creation_timestamp
+
+        # Calculate time on duty
+        time_on_duty = calculate_time_on_duty(creation_timestamp) if creation_timestamp else "N/A"
 
         nodes.append({
             "node_name": node.metadata.name,
@@ -55,6 +90,7 @@ def fetch_k8s_data_with_usage():
             "storage": f"{round(convert_memory_to_gb(ephemeral_storage), 2)} GB",
             "instance_type": instance_type,
             "pods_allocatable": node.status.allocatable.get("pods"),
+            "time_on_duty": time_on_duty,  # Add time on duty
         })
 
     # Fetch namespaces
@@ -89,19 +125,6 @@ def fetch_k8s_data_with_usage():
 
     return {"nodes": nodes, "namespaces": namespaces, "namespace_usage": namespace_usage}
 
-
-def convert_memory_to_gb(memory):
-    """
-    Convert memory to GB (gigabytes) for ephemeral-storage.
-    """
-    if "Ki" in memory:
-        return int(memory.replace("Ki", "")) / (1024 ** 2)
-    elif "Mi" in memory:
-        return int(memory.replace("Mi", "")) / 1024
-    elif "Gi" in memory:
-        return int(memory.replace("Gi", ""))
-    return float(memory)
-
 # Export endpoint
 @router.get("/export")
 def export_data(format: str = "yaml"):