since I have to ```sudo cat /etc/letsencrypt/live/munetaka.me/fullchain.pem /etc/letsencrypt/live/munetaka.me/privkey.pem > /etc/letsencrypt/live/munetaka.me/haproxy.pem

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To automate the process of renewing the certificate and combining the certificate and key into a single file, you can create a script and then set up a cron job to run this script periodically.

Here’s how you can do it:

Step 1: Create the Script
Create a script that renews the certificate and combines the certificate and key files. Save this script in a directory where scripts are typically kept, such as /usr/local/bin/.

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sudo nano /usr/local/bin/renew_cert_and_combine.sh
Add the following content to the script:

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#!/bin/bash

# Renew the certificate
certbot renew

# Check if the renewal was successful
if [ $? -ne 0 ]; then
    echo "Certificate renewal failed."
    exit 1
fi

# Combine the certificate and key into a single file
cat /etc/letsencrypt/live/munetaka.me/fullchain.pem /etc/letsencrypt/live/munetaka.me/privkey.pem > /etc/letsencrypt/live/munetaka.me/haproxy.pem

# Set the correct permissions
chown haproxy:haproxy /etc/letsencrypt/live/munetaka.me/haproxy.pem
chmod 600 /etc/letsencrypt/live/munetaka.me/haproxy.pem

# Restart HAProxy to apply the new certificate
systemctl restart haproxy

echo "Certificate renewed and combined successfully. HAProxy restarted."
Make the script executable:

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sudo chmod +x /usr/local/bin/renew_cert_and_combine.sh
Step 2: Create the Cron Job
Create a cron job to run this script periodically. Typically, you would run this job twice a day to ensure that the certificate is renewed before it expires.

Edit the cron job configuration for the root user:

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sudo crontab -e
Add the following line to the crontab file to run the script at 2:30 AM and 2:30 PM every day:

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30 2,14 * * * /usr/local/bin/renew_cert_and_combine.sh >> /var/log/renew_cert_and_combine.log 2>&1
This will run the renew_cert_and_combine.sh script and log the output to /var/log/renew_cert_and_combine.log.

Verify the Setup
Ensure the cron daemon is running:
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sudo systemctl status cron
Check the log file (/var/log/renew_cert_and_combine.log) periodically to verify that the script is running correctly and there are no errors.
By setting up this script and cron job, your HAProxy will automatically use the latest SSL certificate without manual intervention.