This script uses acme_tiny.py to auth, fetch and update cert，no need for other dependency.

Download

wget https://raw.githubusercontent.com/xdtianyu/scripts/master/lets-encrypt/letsencrypt.conf
wget https://raw.githubusercontent.com/xdtianyu/scripts/master/lets-encrypt/letsencrypt.sh
chmod +x letsencrypt.sh

Configuration

Only modify DOMAIN_KEY DOMAIN_DIR DOMAINS to yours.

ACCOUNT_KEY="letsencrypt-account.key"
DOMAIN_KEY="example.com.key"
DOMAIN_DIR="/var/www/example.com"
DOMAINS="DNS:example.com,DNS:whatever.example.com"

key files will be gererated automatically.

Run

./letsencrypt.sh letsencrypt.conf

Attention

Domain name need bind to DOMAIN_DIR e.g. /var/www/example.com，that is to say visit http://example.com http://whatever.example.com can get into /var/www/example.com directory，this is used to verify your domain.

cron task

Update the certs every month，you can add your command to the end of script to reload your service, e.g. service nginx reload

0 0 1 * * /etc/nginx/certs/letsencrypt.sh /etc/nginx/certs/letsencrypt.conf >> /var/log/lets-encrypt.log 2>&1