check_cert

check_cert is a Check_MK agent plug-in that checks the expiration date of a certificate somewhere in the file-system.

# Installation
sudo make install

Configuring the check plug-in is easy:

# Create a file with one path to a certificate file per line.
mkdir -p /etc/check_mk/agent/cert
echo '/etc/letsencrypt/live/example.com/cert.pem' > /etc/check_mk/agent/cert

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