Certwarden Certificate Management

A bash script for managing SSL/TLS certificates through the Certwarden API. This tool provides both automated and interactive interfaces for downloading, installing, and managing certificates on your system.

Features

• Download and verify certificates and private keys from Certwarden server
• Automatic installation with proper permissions and ownership
• Certificate expiration monitoring
• Interactive menu-driven interface
• Force update option for certificate renewals
• Support for multiple certificates

Prerequisites

The script requires the following dependencies:

• curl: For API interactions
• jq: For JSON processing
• openssl: For certificate operations

Installation

1. Clone this repository into /opt/certman/:

git clone https://forge.dmz.skyfritt.net/Skyfritt/certman.git --depth=1 /opt/certman && cd certman

2. Rename example.env to .env and modify as needed:

# Server Configuration
CERTWARDEN_SERVER="certwarden.dmz.skyfritt.net:443"

# Certificate Paths
CERT_PATH="/etc/certs"
KEY_PATH="/etc/certs"
TEMP_PATH="/tmp/certman"
FULLCHAIN_PEM="true"

# Service Configuration
SERVICE_NAME="nginx"
CERT_OWNER="www-data"
CERT_GROUP="www-data"
CERT_PERMISSIONS="644"
KEY_PERMISSIONS="600"

# Certificate Configurations (JSON format)
# Add as many or few domains as you need (but remember to add or delete the JSON comma!)
CERTIFICATES='[
  {
    "domain": "example-one.com",
    "cert_api_key": "your_cert_api_key",
    "key_api_key": "your_key_api_key"
  }
]'

Usage

Interactive Mode

Run the script without any arguments

./certman.sh

Cron Configuration

Add these lines to your crontab for automated certificate management:

@reboot sleep 15 && /path/to/certman.sh --silent
2 2 * * 7 /opt/certman/certman.sh --silent

Silent Mode

Run the script with the --silent flag for a silent certificate check. It will use the options set in the .env file.

./certman.sh --silent

Force Update

Use the --force flag to force certificate updates regardless of current status:

./certman.sh --force

Disable fetching fullchain PEM

Use the --disable-pem to only fetch the .key and .crt:

./certman.sh --disable-pem

Environment Variables

Variable	Description	Required
CERTWARDEN_SERVER	Certwarden API server hostname and port	Yes
CERT_PATH	Directory for certificate storage	Yes
KEY_PATH	Directory for private key storage	Yes
TEMP_PATH	Temporary directory for downloads	Yes
FULLCHAIN_PEM	Enabled by default	No
SERVICE_NAME	Service to reload after certificate updates	Yes
CERT_OWNER	User owner for certificate files	Yes
CERT_GROUP	Group owner for certificate files	Yes
CERT_PERMISSIONS	Certificate file permissions	Yes
KEY_PERMISSIONS	Private key file permissions	Yes
CERTIFICATES	JSON array of certificate configurations	Yes