mirror of
https://github.com/Rainyy21/k3s-health-dashboard.git
synced 2026-10-10 23:50:20 -04:00
Rainy21
100 lines
3.2 KiB
Python
100 lines
3.2 KiB
Python
import time
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import streamlit as st
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from app import cfg
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from app.cache import (
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clients,
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cached_nodes,
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cached_pods,
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cached_deployments,
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cached_namespaces,
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cached_node_metrics,
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clear,
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)
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st.set_page_config(page_title=cfg.page_title, page_icon=cfg.page_icon, layout="wide")
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clients()
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with st.sidebar:
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st.title("☸️ k3s Dashboard")
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auto_refresh = st.toggle("Auto-refresh (15s)", value=False)
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if st.button("🔄 Refresh now"):
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clear()
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st.rerun()
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namespaces = ["all"] + cached_namespaces()
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sel_ns = st.selectbox("Namespace", namespaces)
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view = st.radio("View", ["Overview", "Nodes", "Pods", "Deployments"])
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# Auto-refresh: sleep only the time remaining since the last refresh,
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# not the full TTL on every rerun (which would freeze the UI on sidebar clicks).
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if auto_refresh:
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now = time.time()
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if "last_refresh" not in st.session_state:
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st.session_state.last_refresh = now
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elapsed = now - st.session_state.last_refresh
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remaining = cfg.cache_ttl - elapsed
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if remaining <= 0:
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clear()
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st.session_state.last_refresh = time.time()
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st.rerun()
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else:
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time.sleep(remaining)
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st.rerun()
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# ── Views ──────────────────────────────────────────────────────────────────────
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if view == "Overview":
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nodes = cached_nodes()
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pods = cached_pods(sel_ns)
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deployments = cached_deployments(sel_ns)
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metrics = cached_node_metrics()
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ready_nodes = sum(1 for n in nodes if n["ready"])
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ready_pods = sum(1 for p in pods if p["ready"])
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ready_deps = sum(1 for d in deployments if d["available"] >= d["desired"] > 0)
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c1, c2, c3 = st.columns(3)
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c1.metric("Nodes", f"{ready_nodes}/{len(nodes)} ready")
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c2.metric("Pods", f"{ready_pods}/{len(pods)} ready")
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c3.metric("Deployments", f"{ready_deps}/{len(deployments)} ready")
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st.divider()
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st.subheader("Nodes")
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st.dataframe(nodes, use_container_width=True)
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st.subheader("Pods")
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st.dataframe(pods, use_container_width=True)
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elif view == "Nodes":
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nodes = cached_nodes()
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metrics = cached_node_metrics()
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st.subheader("Nodes")
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for node in nodes:
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m = metrics.get(node["name"], {})
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with st.expander(f"{'✅' if node['ready'] else '❌'} {node['name']} — {node['roles']}"):
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col1, col2, col3 = st.columns(3)
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col1.metric("CPU capacity", f"{node['cpu_cap']} cores")
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col2.metric("Memory capacity", f"{node['mem_cap_mi']:.0f} Mi")
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col3.metric("Age", node["age"])
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if m:
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col1.metric("CPU usage", m["cpu_usage"])
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col2.metric("Memory usage", m["memory_usage"])
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st.caption(f"OS: {node['os']} Kubelet: {node['kubelet_version']}")
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elif view == "Pods":
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pods = cached_pods(sel_ns)
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st.subheader(f"Pods — {sel_ns}")
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st.dataframe(pods, use_container_width=True)
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elif view == "Deployments":
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deployments = cached_deployments(sel_ns)
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st.subheader(f"Deployments — {sel_ns}")
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st.dataframe(deployments, use_container_width=True)
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