57 lines
1.8 KiB
Bash
Executable File
57 lines
1.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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# 用途：檢查資源使用率（CPU/Memory）
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set -euo pipefail
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# 顏色定義
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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NC='\033[0m'
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echo "=========================================="
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echo " K3s 資源使用率"
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echo "=========================================="
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echo ""
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# 節點資源
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echo "🖥️ 節點資源"
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echo "------------------------------------------"
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kubectl top nodes 2>/dev/null || echo "需要 metrics-server，請稍後再試"
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echo ""
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echo "📦 Pod 資源使用 (Top 10)"
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echo "------------------------------------------"
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kubectl top pods -A --sort-by=cpu 2>/dev/null | head -11 || echo "需要 metrics-server"
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echo ""
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echo "🔋 資源不足警告 (CPU>80% 或 MEM>1Gi)"
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echo "------------------------------------------"
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HIGH_PODS=$(kubectl top pods -A 2>/dev/null | awk -v OFS='\t' 'NR>1 {split($4, v, /([0-9]+)/); mem=int(v[2]); if ($3+0 > 80 || mem > 1024) print $0}')
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if [ -z "$HIGH_PODS" ]; then
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echo -e "${GREEN}✓ 無高資源使用 Pod${NC}"
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else
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echo "$HIGH_PODS" | while IFS=$'\t' read -r ns name cpu mem; do
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echo -e "${YELLOW}⚠ $ns/$name${NC}"
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echo " CPU: $cpu Memory: $mem"
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done
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fi
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echo ""
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echo "📊 無資源限制的 Pod"
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echo "------------------------------------------"
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NO_LIMIT=$(kubectl get pods -A -o jsonpath='{range .items[*]}{.metadata.namespace}{"/"}{.metadata.name}{"\t"}{.spec.containers[*].resources.requests.cpu}{"\t"}{.spec.containers[*].resources.limits.cpu}{"\n"}{end}' | \
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awk -F'\t' '$3 == "<none>" {print $1}')
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if [ -z "$NO_LIMIT" ]; then
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echo -e "${GREEN}✓ 所有 Pod 都有資料設定${NC}"
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else
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echo "$NO_LIMIT" | while read -r pod; do
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echo -e "${YELLOW}⚠ $pod${NC} - 無資源限制"
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done | head -10
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fi
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echo ""
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echo "=========================================="
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