new: [add] init commit, elab-update, elab-manage-install & scripts

README.md

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+# Elabore Manage monitoring Script 
+
+This allow to handle alerting and monitoring using cron scripts + send function from myc-manage
+
+> Warning : your server should be under myc-manage administration to have the send function installed
+
+## Usage : 
+
+1. Clone the repo 
+2. run the script in `bin/elab-manage-install`
+
+Then each time you want to update this repos : `elab-update` from the server 
+
+## Adding a new script : 
+
+Take exemple on the simples scripts that are in cron.daily or cron.hourly and make your own

bin/elab-manage-install

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+#!/bin/bash
+
+# Get the directory where the script resides
+SOURCE_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+# TODO : ${##*/}
+
+# Define the destination directory where the elab-update symbolic link will be created
+DEST_DIR="/usr/local/bin/"
+
+# Check if the elab-update script exists in the source directory
+if [ ! -f "$SOURCE_DIR/elab-update" ]; then
+    echo "Error: elab-update script not found in the source directory."
+    exit 1
+fi
+
+# Create a symbolic link to the elab-update script in the destination directory
+echo "Creating symbolic link to elab-update script in $DEST_DIR..."
+sudo ln -sf "$SOURCE_DIR/elab-update" "$DEST_DIR" || { echo "Error: Unable to create symbolic link."; exit 1; }
+
+echo "elab-update command has been successfully installed as a symbolic link."

bin/elab-update

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+#!/bin/bash
+
+# Define the repository path
+REPO_PATH="/opt/apps/elab-manage"
+
+# Function to update the git repository
+update_repo() {
+    echo "Updating the git repository..."
+    cd "$REPO_PATH" || { 
+        echo "Error: Unable to find the repository at $REPO_PATH"; 
+        exit 1;
+         }
+    git pull -r || { 
+        echo "Error: Unable to update the repository"; 
+        exit 1; 
+        }
+}
+
+
+
+# Function to update symbolic links
+update_symlinks() {
+    echo "Updating symbolic links for cron.daily..."
+    # Update or add new symbolic links for cron.daily and cron.hourly
+    for dir in "cron."{daily,hourly}; do
+        find -L /etc/$dir -maxdepth 1 -type l -ilname $REPO_PATH/etc/$dir\* -delete
+        ln -sf $REPO_PATH/etc/$dir/* /etc/$dir   
+    done
+
+    echo "Symbolic links have been successfully updated."
+}
+
+# Update the git repository and symbolic links
+update_repo
+update_symlinks
+
+echo "Elabore Update complete."

etc/cron.daily/remove_state_file_48h

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+#!/bin/bash 
+
+SHELL=/bin/bash
+PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
+
+## Remove every .state file older than 48h -- Cleanup script if the others aren’t strong enougth    
+find /var/run/elab-manage -name "*.state" -type f -mtime +2 -delete

etc/cron.hourly/disk_usage

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+#!/bin/bash
+
+SHELL=/bin/bash
+PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
+
+## check disk usage and send a notification if it's above 75% or 90%
+
+percent_usage=$(df /srv -h)
+percent_usage=${percent_usage##*$'\n'}
+percent_usage=${percent_usage% *}
+percent_usage=${percent_usage##* }
+percent_usage=${percent_usage%\%}
+
+STATE_WORKING_DIR="/var/run/elab-manage"
+mkdir -p "$STATE_WORKING_DIR"
+
+if [ "$percent_usage" -ge "90" ]; then
+   if [ -e $STATE_WORKING_DIR/disk_usage_90.state ]; then
+      exit 0
+   else
+      touch $STATE_WORKING_DIR/disk_usage_90.state
+      message="$(hostname): WARNING disk usage >=90%"
+      send -c disk.crit "$message"
+   fi
+elif [ "$percent_usage" -ge "75" ]; then
+   if [ -e $STATE_WORKING_DIR/disk_usage_75.state ]; then
+      exit 0
+   else
+      touch $STATE_WORKING_DIR/disk_usage_75.state
+      message="$(hostname): WARNING disk usage >=75 <90%"
+      send -c disk.alert "$message"
+   fi
+else
+   if [ -e $STATE_WORKING_DIR/disk_usage_75.state ]; then
+      rm $STATE_WORKING_DIR/disk_usage_75.state
+   fi
+   if [ -e $STATE_WORKING_DIR/disk_usage_90.state ]; then
+      rm $STATE_WORKING_DIR/disk_usage_90.state
+   fi
+fi

etc/cron.hourly/load_average_max

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+#!/bin/bash
+
+SHELL=/bin/bash
+PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
+
+MAX_PER_PROC=3
+
+## integer only for the 5m load avg
+
+LOCK_WORKING_DIR="/var/run/elab-manage"
+mkdir -p "$LOCK_WORKING_DIR"
+
+int_avg=$(while read line; do
+              echo "$line"
+          done < /proc/loadavg)
+int_avg=${int_avg#* }
+int_avg=${int_avg%%.*}
+max=$[$MAX_PER_PROC * $(grep -c ^processor /proc/cpuinfo)]
+if [ "$int_avg" -gt "$max" ]; then
+    if [ -e $LOCK_WORKING_DIR/load_average_max.lock ]; then
+        exit 0
+    else
+        touch   $LOCK_WORKING_DIR/load_average_max.lock
+        message="[$(hostname)] : WARNING - load average ($int_avg) is above max per processor : ($MAX_PER_PROC * $(grep -c ^processor /proc/cpuinfo) = $max)"
+        echo $message | logger -t load_average_max
+        send "$message"
+    fi
+else 
+    if [ -e $LOCK_WORKING_DIR/load_average_max.lock ]; then
+        rm $LOCK_WORKING_DIR/load_average_max.lock
+    fi
+fi