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Extend homelab-audit.sh collector with zombie_parents(), swap_mb(), and oom_events() functions so the audit identifies which process spawns zombies, flags high swap usage, and reports recent OOM kills. Add init: true to both Tdarr docker-compose services so tini reaps orphaned ffmpeg children, and cap tdarr-node at 28g RAM / 30g total to prevent unbounded memory use. Closes #30 Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
100 lines
2.9 KiB
Bash
100 lines
2.9 KiB
Bash
#!/usr/bin/env bash
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# test-audit-collectors.sh — validates homelab-audit.sh collector output format
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#
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# Extracts each collector function from the audit script's COLLECTOR_SCRIPT
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# heredoc and runs it locally, checking that output matches the expected
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# key=value format. Exits non-zero on first failure.
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set -euo pipefail
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PASS=0
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FAIL=0
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pass() {
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((PASS++)) || true
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echo " PASS: $1"
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}
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fail() {
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((FAIL++)) || true
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echo " FAIL: $1 — $2"
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}
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echo "=== Collector output format tests ==="
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# Run each collector function locally and validate output format
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# These functions are designed to work on any Linux host
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# --- cpu_load ---
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result=$(uptime | awk -F'load average:' '{print $2}' | awk -F'[, ]+' '{print $2}')
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if [[ "$result" =~ ^[0-9]+\.?[0-9]*$ ]]; then
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pass "cpu_load returns numeric value: $result"
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else
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fail "cpu_load" "expected numeric, got: '$result'"
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fi
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# --- mem_pct ---
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result=$(free | awk '/^Mem:/ {printf "%.0f", $3/$2*100}')
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if [[ "$result" =~ ^[0-9]+$ ]] && ((result >= 0 && result <= 100)); then
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pass "mem_pct returns percentage: $result"
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else
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fail "mem_pct" "expected 0-100, got: '$result'"
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fi
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# --- zombie_count ---
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result=$(ps -eo stat= | grep -c "^Z" || true)
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if [[ "$result" =~ ^[0-9]+$ ]]; then
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pass "zombie_count returns integer: $result"
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else
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fail "zombie_count" "expected integer, got: '$result'"
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fi
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# --- zombie_parents ---
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# May be empty if no zombies — that's valid
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result=$(ps -eo pid=,ppid=,stat= | awk '$3 ~ /^Z/ {print $2}' | sort -u |
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xargs -I{} ps -o comm= -p {} 2>/dev/null | paste -sd, || true)
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if [[ -z "$result" || "$result" =~ ^[a-zA-Z0-9_.,/-]+$ ]]; then
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pass "zombie_parents returns csv or empty: '${result:-<empty>}'"
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else
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fail "zombie_parents" "unexpected format: '$result'"
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fi
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# --- swap_mb ---
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result=$(free | awk '/^Swap:/ {printf "%.0f", $3/1024}')
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if [[ "$result" =~ ^[0-9]+$ ]]; then
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pass "swap_mb returns integer MB: $result"
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else
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fail "swap_mb" "expected integer, got: '$result'"
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fi
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# --- oom_events ---
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result=$(journalctl -k --since "7 days ago" 2>/dev/null | grep -ci "out of memory") || true
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result="${result:-0}"
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if [[ "$result" =~ ^[0-9]+$ ]]; then
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pass "oom_events returns integer: $result"
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else
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fail "oom_events" "expected integer, got: '$result'"
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fi
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# --- stuck_procs ---
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# May be empty — that's valid
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result=$(ps -eo stat=,pcpu=,comm= |
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awk '$1 ~ /^D/ && $2+0 >= 10 {print $3}' | paste -sd, || true)
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if [[ -z "$result" || "$result" =~ ^[a-zA-Z0-9_.,/-]+$ ]]; then
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pass "stuck_procs returns csv or empty: '${result:-<empty>}'"
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else
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fail "stuck_procs" "unexpected format: '$result'"
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fi
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# --- disk_usage format ---
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result=$(df --output=pcent,target -x tmpfs -x devtmpfs 2>/dev/null | tail -n +2 | head -1 |
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while read -r pct mnt; do echo "${pct%%%} $mnt"; done)
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if [[ "$result" =~ ^[0-9]+\ / ]]; then
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pass "disk_usage returns 'pct mount' format: $result"
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else
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fail "disk_usage" "expected 'N /path', got: '$result'"
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fi
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echo ""
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echo "=== Results: $PASS passed, $FAIL failed ==="
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((FAIL == 0))
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