feat: add collectors and rules

2025-12-27 00:59:13 +00:00
parent b654462586
commit d1980ec714
14 changed files with 493 additions and 32 deletions
--- a/40-rules/backup_restore_drill_recent.sh
+++ b/40-rules/backup_restore_drill_recent.sh
@@ -0,0 +1,91 @@
+#!/usr/bin/env bash
+set -euo pipefail
+source "$(dirname "$0")/../scripts/lib/common.sh"
+require_cmd jq
+
+EVID_DIR="${1:?usage: backup_restore_drill_recent.sh <evidence_dir>}"
+TS="$(iso_utc_now)"
+FILE="$EVID_DIR/backup_restore_drill.json"
+
+MAX_DAYS="${VMCC_MAX_RESTORE_DRILL_AGE_DAYS:-7}"
+
+file_mtime_epoch() {
+  local file="$1"
+  if stat -c %Y "$file" >/dev/null 2>&1; then
+    stat -c %Y "$file"
+  else
+    stat -f %m "$file"
+  fi
+}
+
+if [[ ! -f "$FILE" ]]; then
+  json_emit "$(jq -n --arg ts "$TS" '{
+    version:"1.0.0",
+    rule_id:"backup.restore_drill_recent",
+    control_ids:["BC-01"],
+    passed:false,
+    severity:"MEDIUM",
+    timestamp:$ts,
+    evidence:[{path:"backup_restore_drill.json"}],
+    details:{error:"missing evidence file"}
+  }')"
+  exit 0
+fi
+
+COLLECTED="$(jq -r '.collected // false' "$FILE")"
+if [[ "$COLLECTED" != "true" ]]; then
+  json_emit "$(jq -n --arg ts "$TS" '{
+    version:"1.0.0",
+    rule_id:"backup.restore_drill_recent",
+    control_ids:["BC-01"],
+    passed:false,
+    severity:"MEDIUM",
+    timestamp:$ts,
+    evidence:[{path:"backup_restore_drill.json"}],
+    details:{error:"no restore drill evidence found"}
+  }')"
+  exit 0
+fi
+
+PATH_FOUND="$(jq -r '.path // empty' "$FILE")"
+if [[ -z "$PATH_FOUND" || ! -f "$PATH_FOUND" ]]; then
+  json_emit "$(jq -n --arg ts "$TS" --arg p "$PATH_FOUND" '{
+    version:"1.0.0",
+    rule_id:"backup.restore_drill_recent",
+    control_ids:["BC-01"],
+    passed:false,
+    severity:"MEDIUM",
+    timestamp:$ts,
+    evidence:[{path:"backup_restore_drill.json"}],
+    details:{error:"referenced drill file missing", referenced:$p}
+  }')"
+  exit 0
+fi
+
+NOW_EPOCH="$(date -u +%s)"
+MTIME_EPOCH="$(file_mtime_epoch "$PATH_FOUND")"
+AGE_DAYS="$(( (NOW_EPOCH - MTIME_EPOCH) / 86400 ))"
+
+if [[ "$AGE_DAYS" -le "$MAX_DAYS" ]]; then
+  json_emit "$(jq -n --arg ts "$TS" --argjson age "$AGE_DAYS" '{
+    version:"1.0.0",
+    rule_id:"backup.restore_drill_recent",
+    control_ids:["BC-01"],
+    passed:true,
+    severity:"MEDIUM",
+    timestamp:$ts,
+    evidence:[{path:"backup_restore_drill.json"}],
+    details:{age_days:$age}
+  }')"
+else
+  json_emit "$(jq -n --arg ts "$TS" --argjson age "$AGE_DAYS" --argjson max "$MAX_DAYS" '{
+    version:"1.0.0",
+    rule_id:"backup.restore_drill_recent",
+    control_ids:["BC-01"],
+    passed:false,
+    severity:"MEDIUM",
+    timestamp:$ts,
+    evidence:[{path:"backup_restore_drill.json"}],
+    details:{error:"restore drill too old", age_days:$age, max_days:$max}
+  }')"
+fi