service-child-process-monitor.sh

#!/bin/bash

# Configuration
SERVICE_NAME="php83-php-fpm.service"
THRESHOLD=40
SLACK_TOKEN="xoxb-XXXXXX"
SLACK_CHANNEL="CXXXX"

# Function to send Slack notification
send_slack_notification() {
    local count=$1
    curl -X POST \
        -H "Content-type: application/json" \
        -H "Authorization: Bearer ${SLACK_TOKEN}" \
        -d "{
            \"channel\": \"${SLACK_CHANNEL}\",
            \"text\": \"SS child process count: ${count}\",
            \"username\": \"SS\",
            \"icon_emoji\": \":violin:\"
        }" \
        https://slack.com/api/chat.postMessage
}

# Get process count
PROCESS_COUNT=$(sudo systemctl status ${SERVICE_NAME} | grep "pool servings_conf" | wc -l)

# Log the current count (useful for debugging)
echo "$(date): Current process count: ${PROCESS_COUNT}"

# Check if process count exceeds threshold
if [ ${PROCESS_COUNT} -gt ${THRESHOLD} ]; then
    echo "Process count (${PROCESS_COUNT}) exceeds threshold (${THRESHOLD})"

    # Send notification to Slack
    send_slack_notification ${PROCESS_COUNT}

    # Restart the service
    echo "Restarting ${SERVICE_NAME}..."
    sudo systemctl restart ${SERVICE_NAME}

    # Check if restart was successful
    if [ $? -eq 0 ]; then
        echo "Service restart completed successfully"
    else
        echo "Service restart failed"
        send_slack_notification "WARNING: Failed to restart ${SERVICE_NAME}"
    fi
else
    echo "Process count is within normal range"
fi