check_os_eol
check_os_eol
is a Bash script designed to check the End Of Life (EOL) status of various Linux distributions. It reads the OS version from /etc/os-release
, compares it with a predefined list of EOL dates, and alerts if the OS is approaching or has surpassed its EOL date.
Features
- Supports multiple major Linux distributions including Ubuntu, Debian, CentOS, RHEL, Fedora, Rocky Linux, AlmaLinux, SUSE, and openSUSE.
- Configurable warning and critical thresholds.
- Provides human-readable output indicating the EOL status.
Usage
./check_os_eol.sh [WARN_DAYS] [CRIT_DAYS]
WARN_DAYS
: Number of days before EOL to issue a warning (default: 90 days).CRIT_DAYS
: Number of days before EOL to issue a critical alert (default: 30 days).-h
: Display help message.
Examples
Check with default thresholds (90 days for warning, 30 days for critical):
./check_os_eol.sh
Check with custom thresholds (e.g., 60 days for warning, 20 days for critical):
./check_os_eol.sh 60 20
Help
To display the help message:
./check_os_eol.sh -h
Output
The script provides output in the following formats:
OK
: The OS will not reach EOL soon.WARNING
: The OS will reach EOL within the specified warning period.CRITICAL
: The OS will reach EOL within the specified critical period or is already EOL.UNKNOWN
: The OS or its EOL date could not be determined.
Supported Distributions
- Ubuntu
- 18.04 (EOL: 2023-04-30)
- 20.04 (EOL: 2025-04-30)
- 22.04 (EOL: 2027-04-30)
- 24.04 (EOL: 2029-04-30)
- Debian
- 10 (EOL: 2024-06-30)
- 11 (EOL: 2026-06-30)
- 12 (EOL: 2028-06-30)
- CentOS
- 7 (EOL: 2024-06-30)
- 8 (EOL: 2021-12-31)
- RHEL
- 7 (EOL: 2024-06-30)
- 8 (EOL: 2029-05-31)
- 9 (EOL: 2032-05-31)
- Fedora
- 37 (EOL: 2024-12-31)
- 38 (EOL: 2025-06-30)
- Rocky Linux
- 8 (EOL: 2029-05-31)
- 9 (EOL: 2032-05-31)
- AlmaLinux
- 8 (EOL: 2029-05-31)
- 9 (EOL: 2032-05-31)
- SUSE
- SLES 12 (EOL: 2027-10-31)
- SLES 15 (EOL: 2031-07-31)
- openSUSE Leap 15.5 (EOL: 2024-12-31)
Installation
- Clone the repository:
git clone https://github.com/pr0j3ctx/check_os_eol.git
- Change into the directory:
cd check_os_eol
- Make the script executable:
chmod +x check_os_eol
Contributing
Contributions are welcome! Please submit a pull request or open an issue to discuss your changes or improvements.
License
This project is licensed under the GNU General Public License v3.0 - see the LICENSE file for details.
Changelog
[Unreleased]
- Initial release of
check_os_eol
.
[1.0.0] - 2024-07-08
- Added support for Ubuntu, Debian, CentOS, RHEL, Fedora, Rocky Linux, AlmaLinux, SUSE, and openSUSE.
- Configurable warning and critical thresholds.
- Added human-readable output indicating the EOL status.