system maintenance

system-ment.sh

#!/bin/bash

# Configuration
THRESHOLD_GB=20
ALERT_URL="https://example.com/alert"

# Function to check disk space
check_disk_space() {
    free_space=$(df --output=avail -BG / | tail -1 | tr -d 'G')
    echo "$free_space"
}

# Function to send alert via curl
send_alert() {
    free_space=$1
    curl -X POST -H "Content-Type: application/json" \
         -d '{"message": "The server is running low on storage. Only '$free_space'GB is free."}' \
         "$ALERT_URL"
    echo "Alert sent to $ALERT_URL."
}

# Function to delete cache files
delete_cache() {
    cache_dirs=("/var/cache" "/tmp")
    for directory in "${cache_dirs[@]}"; do
        find "$directory" -type f -exec rm -f {} \;
    done
    echo "Cache files deleted successfully."
}

# Function to delete dangling Docker images
delete_dangling_images() {
    if command -v docker &> /dev/null; then
        docker image prune -f
        echo "Dangling Docker images deleted successfully."
    else
        echo "Docker is not installed on this system."
    fi
}

# Main script
free_space=$(check_disk_space)
echo "Free disk space: ${free_space}GB"

if (( free_space < THRESHOLD_GB )); then
    send_alert "$free_space"
    delete_cache
    delete_dangling_images
else
    echo "Sufficient disk space available."
fi

#!/bin/bash


get_free_space() {
    df -h --total | awk '/^total/{print $4}' | sed 's/G//'
}

get_treshold() {
    echo 300
}


free_space=$(get_free_space)
threshold_gb=$(get_treshold)
echo "Free disk space: ${free_space}GB"
echo "Threshold space: ${threshold_gb}GB"

# Convert values to integers for comparison
free_space_int=${free_space%.*} # Remove any decimal points
threshold_gb_int=${threshold_gb%.*}


if (( free_space_int < threshold_gb_int )); then
    echo "send alert to admin"

else
    echo "Sufficient disk space available."
fi