feat - add ceph check

2026-04-24 21:29:27 +02:00
parent 9b2412c775
commit 2dc995209c
4 changed files with 122 additions and 0 deletions
@@ -0,0 +1,104 @@
+#!/bin/bash
+
+# Nagios Exit Codes
+OK=0
+WARNING=1
+CRITICAL=2
+UNKNOWN=3
+
+if [ -z "$1" ]; then
+    echo "Usage: $0 [health|osd|mon|cap|pg]"
+    exit $UNKNOWN
+fi
+
+COMMAND=$1
+
+case $COMMAND in
+    health)
+        HEALTH_DATA=$(sudo ceph health)
+        if [[ $HEALTH_DATA == *"HEALTH_OK"* ]]; then
+            echo "OK: Ceph is healthy"
+            exit $OK
+        elif [[ $HEALTH_DATA == *"HEALTH_WARN"* ]]; then
+            echo "WARNING: $HEALTH_DATA"
+            exit $WARNING
+        else
+            echo "CRITICAL: $HEALTH_DATA"
+            exit $CRITICAL
+        fi
+        ;;
+
+    osd)
+        OSD_JSON=$(sudo ceph osd stat --format json)
+        TOTAL=$(echo "$OSD_JSON" | python3 -c "import sys, json; print(json.load(sys.stdin).get('num_osds', 0))")
+        UP=$(echo "$OSD_JSON" | python3 -c "import sys, json; print(json.load(sys.stdin).get('num_up_osds', 0))")
+        IN=$(echo "$OSD_JSON" | python3 -c "import sys, json; print(json.load(sys.stdin).get('num_in_osds', 0))")
+
+        if [ "$UP" -lt "$TOTAL" ]; then
+            echo "CRITICAL: OSD down! ($UP/$TOTAL up) | osds=$TOTAL up=$UP in=$IN"
+            exit $CRITICAL
+        elif [ "$IN" -lt "$TOTAL" ]; then
+            echo "WARNING: OSD out! ($IN/$TOTAL in) | osds=$TOTAL up=$UP in=$IN"
+            exit $WARNING
+        else
+            echo "OK: All OSDs are up and in ($TOTAL/$TOTAL) | osds=$TOTAL up=$UP in=$IN"
+            exit $OK
+        fi
+        ;;
+
+    mon)
+        MON_JSON=$(sudo ceph mon stat --format json)
+        QUORUM_COUNT=$(echo "$MON_JSON" | python3 -c "import sys, json; print(len(json.load(sys.stdin).get('quorum', [])))")
+
+        if [ "$QUORUM_COUNT" -lt 3 ]; then
+            echo "CRITICAL: Monitor Quorum degraded! ($QUORUM_COUNT/3) | quorum=$QUORUM_COUNT"
+            exit $CRITICAL
+        else
+            echo "OK: Monitor Quorum is 3/3 | quorum=$QUORUM_COUNT"
+            exit $OK
+        fi
+        ;;
+
+    cap)
+        CAP_JSON=$(sudo ceph df --format json)
+        USAGE=$(echo "$CAP_JSON" | python3 -c "
+import sys, json
+try:
+    stats = json.load(sys.stdin)['stats']
+    ratio = stats.get('total_used_raw_ratio', stats.get('total_used_ratio', 0))
+    print(int(float(ratio) * 100))
+except Exception:
+    print(-1)
+")
+
+        if [ "$USAGE" -eq -1 ]; then
+            echo "UNKNOWN: Unable to parse Ceph capacity"
+            exit $UNKNOWN
+        elif [ "$USAGE" -ge 85 ]; then
+            echo "CRITICAL: Ceph capacity at $USAGE% | usage=$USAGE%"
+            exit $CRITICAL
+        elif [ "$USAGE" -ge 75 ]; then
+            echo "WARNING: Ceph capacity at $USAGE% | usage=$USAGE%"
+            exit $WARNING
+        else
+            echo "OK: Ceph capacity at $USAGE% | usage=$USAGE%"
+            exit $OK
+        fi
+        ;;
+
+    pg)
+        PG_STAT=$(sudo ceph pg stat)
+        if [[ $PG_STAT == *"active+clean"* ]] && [[ $PG_STAT != *"degraded"* ]] && [[ $PG_STAT != *"undersized"* ]]; then
+            echo "OK: PGs are active+clean"
+            exit $OK
+        else
+            echo "WARNING: PGs status: $PG_STAT"
+            exit $WARNING
+        fi
+        ;;
+
+    *)
+        echo "Unknown argument: $COMMAND"
+        exit $UNKNOWN
+        ;;
+esac