Archived monitor-vultr script (removed from variss)

monitor-vultr-archive.sh

#!/bin/bash
# Monitor for orphaned Vultr VPS instances
# Alerts if an instance persists for 2+ consecutive checks (30 min intervals)
# State file tracks instance IDs and their first-seen timestamps

source /root/.matrix/credentials

STATE_FILE="/var/lib/vultr-instance-state"
ALERT_THRESHOLD=2  # Number of consecutive checks before alerting

# Ensure state directory exists
mkdir -p "$(dirname "$STATE_FILE")"

# Get current instances from Vultr API
INSTANCES=$(curl -sfS -H "Authorization: Bearer ${VULTR_API_KEY}" "https://api.vultr.com/v2/instances" 2>/dev/null)

if [ $? -ne 0 ]; then
    echo "$(date): Failed to query Vultr API" >> /var/log/vultr-monitor.log
    exit 1
fi

# Extract instance IDs
CURRENT_IDS=$(echo "$INSTANCES" | jq -r ".instances[]?.id // empty" | sort -u)
CURRENT_COUNT=$(echo "$CURRENT_IDS" | grep -c . 2>/dev/null || echo 0)

# Read previous state
declare -A STATE
if [ -f "$STATE_FILE" ]; then
    while IFS="=" read -r id count; do
        STATE[$id]=$count
    done < "$STATE_FILE"
fi

# Process current instances
ALERTS=()
NEW_STATE=""

while IFS= read -r id; do
    [ -z "$id" ] && continue
    
    # Get instance details
    DETAILS=$(echo "$INSTANCES" | jq -r ".instances[] | select(.id == \"$id\")")
    LABEL=$(echo "$DETAILS" | jq -r ".label // \"unnamed\"")
    REGION=$(echo "$DETAILS" | jq -r ".region // \"unknown\"")
    PLAN=$(echo "$DETAILS" | jq -r ".plan // \"unknown\"")
    IP=$(echo "$DETAILS" | jq -r ".main_ip // \"unknown\"")
    
    # Increment count for this instance
    PREV_COUNT=${STATE[$id]:-0}
    NEW_COUNT=$((PREV_COUNT + 1))
    
    # Add to new state
    NEW_STATE="${NEW_STATE}${id}=${NEW_COUNT}\n"
    
    # Check if we should alert
    if [ $NEW_COUNT -ge $ALERT_THRESHOLD ]; then
        HOURS=$((NEW_COUNT / 2))
        MINS=$((NEW_COUNT * 30))
        ALERTS+=("⚠️ Vultr instance still running after ${MINS} min: $LABEL ($PLAN in $REGION) - $IP - ID: $id")
    fi
done <<< "$CURRENT_IDS"

# Write new state
echo -e "$NEW_STATE" | grep -v "^$" > "$STATE_FILE"

# Send alerts
for alert in "${ALERTS[@]}"; do
    /usr/local/bin/matrix-notify "$alert"
    echo "$(date): $alert" >> /var/log/vultr-monitor.log
done

# Log summary if instances exist
if [ "$CURRENT_COUNT" -gt 0 ]; then
    echo "$(date): $CURRENT_COUNT instance(s) tracked" >> /var/log/vultr-monitor.log
fi