Bash Script Monitoring Certificate Kubernetes Cluster (Telegram Alert)

 

#!/bin/bash   HOST=$(hostname)   # ID Telegram TOKEN=telegram_token CHAT_ID=telegram_chatId   # Cek Sertifikat SSL Kubernetes cert_info=$(kubeadm certs check-expiration) expires_date=$(echo "$cert_info" | awk 'NR>6 {print $2, $3, $4, $5; exit}') days_remaining=$(echo "$cert_info" | awk 'NR>6 {print $7; exit}')   # Hapus "d" dari variable days_remaining menjadi full integer days_remaining="${days_remaining%d}"   # Mengecek apakah sisa hari kurang dari 90 if [ "$days_remaining" -lt 90 ]; then   # Tampilkan Sertifikat SSL Kubernetes   echo "Cluster    : $HOST" > /opt/scripts/ssl_kuber.log   echo "Expire on : $expires_date" >> /opt/scripts/ssl_kuber.log   echo "Counting  : $days_remaining days" >> /opt/scripts/ssl_kuber.log     # Kirim Notifikasi   MESSAGE="$(cat /opt/scriptss/ssl_kuber.log)"   URL="https://api.telegram.org/bot$TOKEN/sendMessage"   curl -s -X POST $URL -d chat_id=$CHAT_ID -d text="$(echo -e '\U0001f525 \U0001f514 \nNP2.1 Kubernetes SSLn\n')$(echo -e '\n-----------------------------------\n')$(echo -e '\n'"$MESSAGE") " else   echo "check-expiration: OK: $days_remaining days" fi   sleep 3 rm -f /opt/scripts/ssl_kuber.log

Bash Script Monitoring CSR Kubernetes (Telegram Alert)

 

#!/bin/bash HOST=$(hostname) TOKEN=telegram_token CHAT_ID=telegram_chat_id   pending_csrs=$(kubectl get csr | awk '$4=="Pending"')   if [ -z "$pending_csrs" ]; then     echo "No pending CSRs."   else     # Tampilkan CSR Kubernetes     echo "Cluster     : $HOST" > /opt/scripts/csr_kuber.log     echo "Status CSR : You have pending CSRs" >> /opt/scripts/csr_kuber.log     sumpending=$(kubectl get csr | awk '$4=="Pending"'| wc -l)     echo "Total      : $sumpending" >> /opt/scripts/csr_kuber.log       # Kirim telegram     MESSAGE="$(cat /opt/scripts/csr_kuber.log)"     curl -s -X POST "https://api.telegram.org/bot$TOKEN/sendMessage" -d "chat_id=$CHAT_ID" -d "text="$(echo -e '\U0001f525 \U0001f514 \nNP2 Kubernetes SSLn\n')$(echo -e '\n-----------------------------------\n')$(echo -e '\n'"$MESSAGE")   fi   sleep 3 rm -f /opt/scripts/csr_kuber.log

Bash Script Monitoring Service Kubernetes (Telegram Alert)

#!/bin/bash   TOKEN=telegram_token CHAT_ID=telegram_id log=/var/log/svc.log tgl=$(date +"%A %d-%m-%Y %T")   export PATH=/root/.local/bin:/root/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin export KUBECONFIG=/etc/kubernetes/admin.conf   function getsvc {         echo "" > $log         /usr/bin/kubectl get pods --all-namespaces --no-headers | grep 'ImagePullBackOff' | awk '{print "\nProject = " $1 "\nPods = " $2 "\nStatus =  " $4 "\n_____________________________"}' >> $log         /usr/bin/kubectl get pods --all-namespaces --no-headers | grep 'CrashLoopBackOff' | awk '{print "\nProject = " $1 "\nPods = " $2 "\nStatus =  " $4 "\n_____________________________"}' >> $log         /usr/bin/kubectl get pods --all-namespaces --no-headers | grep 'Pending' | awk '{print "\nProject = " $1 "\nPods = " $2 "\nStatus =  " $4 "\n_____________________________"}' >> $log         /usr/bin/kubectl get pods --all-namespaces --no-headers | grep 'Outofmemory' | awk '{print "\nProject = " $1 "\nPods = " $2 "\nStatus =  " $4 "\n_____________________________"}' >> $log         /usr/bin/kubectl get pods --all-namespaces --no-headers | grep 'Outofcpu' | awk '{print "\nProject = " $1 "\nPods = " $2 "\nStatus =  " $4 "\n_____________________________"}' >> $log #       /usr/bin/kubectl get pods --all-namespaces --no-headers | grep 'Running' | awk '{print "\nProject = " $1 "\nPods = " $2 "\nStatus =  " $4 "\n_____________________________"}' >> $log }   getsvc   message=$(<$log) send() {         curl  \         -X POST \         https://api.telegram.org/bot$TOKEN/sendMessage \         -d chat_id=$CHAT_ID \         -d text="`echo -e '\U0001f525 \u274C \U0001f514 \nNP2 Service Down\n.'`$tgl`echo -e '\n_____________________________\n'` $message" }   if [[ ! -z "$message" ]]; then         send else         echo "Error message" fi