Setup metric utilities

check-disk-usage.sh

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+#!/bin/bash
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+. "${SCRIPT_DIR}/logging.sh"
+
+LOGFILE=/var/log/disk_usage.log
+touch "$LOGFILE"
+chmod 644 "$LOGFILE"
+
+for i in {1..6}; do
+  timestamp=$(GetTimestamp)
+  df --output=target,used,size -B1 \
+    | tail -n +2 \
+    | while read -r mount used total; do
+        echo "$timestamp $mount $used $total" >> "$LOGFILE"
+      done
+
+  sleep 10
+done

check-power-usage.sh

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+#!/bin/bash
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+. "${SCRIPT_DIR}/logging.sh"
+
+LOGFILE=/var/log/power_usage.log
+touch "$LOGFILE"
+chmod 644 "$LOGFILE"
+
+# Path to the energy_uj file for the CPU package
+RAPL_PATH="/sys/class/powercap/intel-rapl:0/energy_uj"
+for i in {1..6}; do
+  energy_1=$(cat $RAPL_PATH)
+  sleep 1
+
+  energy_2=$(cat $RAPL_PATH)
+  energy_diff=$((energy_2 - energy_1))
+
+  # Convert microjoules to joules (1 J = 1,000,000 µJ)
+  energy_joules=$(echo "scale=6; $energy_diff / 1000000" | bc)
+
+  # Since we waited 1 second, the power usage is simply the energy difference in joules (W)
+  power_watts=$(echo "scale=6; $energy_joules / 1" | bc)
+
+  timestamp=$(GetTimestamp)
+
+  # Write power usage to log file
+  echo "$timestamp $power_watts" >> "$LOGFILE"
+  sleep 9
+done

check-temperature.sh

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+#!/bin/bash
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+. "${SCRIPT_DIR}/logging.sh"
+
+LOGFILE=/var/log/temperature.log
+touch "$LOGFILE"
+chmod 644 "$LOGFILE"
+
+for i in {1..6}; do
+  timestamp=$(GetTimestamp)
+  paste <(cat /sys/class/thermal/thermal_zone*/type) <(cat /sys/class/thermal/thermal_zone*/temp) | column -s $'\t' -t | sed 's/\(.\)..$/.\1°C/' | while read line; do
+    echo "$timestamp $line" >> "$LOGFILE"
+  done
+  sleep 10
+done

logging.sh

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+#!/bin/bash
+
+GetTimestamp(){
+    date +"%Y-%m-%dT%H:%M:%S"
+}
+
+LogInformation(){
+    local message="$1"
+    echo -e "[$(GetTimestamp)] [INFO] ${message}"
+}
+
+LogWarning(){
+    local message="$1"
+    echo -e "[$(GetTimestamp)] [WARN] ${message}"
+}
+
+LogError(){
+    local message="$1"
+    echo -e "[$(GetTimestamp)] [EROR] ${message}"
+}
+
+LogDebug(){
+    local message="$1"
+    echo -e "[$(GetTimestamp)] [DBUG] ${message}"
+}

setup-crontab.sh

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+#!/bin/bash
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+. "${SCRIPT_DIR}/logging.sh"
+
+SCRIPTS=(
+    "check-disk-usage.sh"
+    "check-power-usage.sh" 
+    "check-temperature.sh"
+)
+
+CheckScriptExists() {
+    local script="$1"
+    local script_path="${SCRIPT_DIR}/${script}"
+    
+    if [[ -f "$script_path" && -x "$script_path" ]]; then
+        return 0
+    elif [[ -f "$script_path" ]]; then
+        LogWarning "Script $script exists but is not executable. Making it executable..."
+        chmod +x "$script_path"
+        return 0
+    else
+        return 1
+    fi
+}
+
+ManageCrontabEntry() {
+    local script="$1"
+    local script_path="${SCRIPT_DIR}/${script}"
+    local cron_pattern="* * * * * ${script_path}"
+    
+    local current_crontab
+    current_crontab=$(crontab -l 2>/dev/null || echo "")
+    
+    if echo "$current_crontab" | grep -q "$script_path"; then
+        LogInformation "Crontab entry for $script already exists"
+        
+        if echo "$current_crontab" | grep -q "^\* \* \* \* \* ${script_path}"; then
+            LogInformation "Entry for $script is already set to run every minute"
+        else
+            LogInformation "Updating $script to run every minute"
+            local new_crontab
+            new_crontab=$(echo "$current_crontab" | grep -v "$script_path")
+            new_crontab="${new_crontab}${new_crontab:+$'\n'}${cron_pattern}"
+            echo "$new_crontab" | crontab -
+            LogInformation "Updated crontab entry for $script"
+        fi
+    else
+        LogInformation "Adding new crontab entry for $script"
+        local new_crontab="${current_crontab}${current_crontab:+$'\n'}${cron_pattern}"
+        echo "$new_crontab" | crontab -
+        LogInformation "Added crontab entry for $script"
+    fi
+}
+
+BackupCrontab() {
+    local backup_file="${SCRIPT_DIR}/crontab_backup_$(date +%Y%m%d_%H%M%S)"
+    crontab -l > "$backup_file" 2>/dev/null
+    if [[ $? -eq 0 ]]; then
+        LogInformation "Crontab backed up to: $backup_file"
+    else
+        LogWarning "No existing crontab to backup or backup failed"
+    fi
+}
+
+Main() {
+    LogInformation "Starting crontab setup for server management scripts"
+    
+    BackupCrontab
+    
+    for script in "${SCRIPTS[@]}"; do
+        LogInformation "Processing $script..."
+        
+        if CheckScriptExists "$script"; then
+            LogInformation "Script $script found and is executable"
+            ManageCrontabEntry "$script"
+        else
+            LogWarning "Script $script not found or not accessible, skipping..."
+        fi
+    done
+    
+    LogInformation "Crontab setup completed"
+    LogInformation "Current crontab entries:"
+    crontab -l 2>/dev/null | grep -E "(check-disk-usage|check-power-usage|check-temperature)" || LogInformation "No matching entries found"
+}
+
+Main "$@"