felia/.nginx/nginx/nginx.sh

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#!/bin/sh
set -e
if [ -z "$DOMAINS" ]; then
echo "DOMAINS environment variable is not set"
exit 1;
fi
use_dummy_certificate() {
if grep -q "/etc/letsencrypt/live/$1" "/etc/nginx/sites/$1.conf"; then
echo "Switching Nginx to use dummy certificate for $1"
sed -i "s|/etc/letsencrypt/live/$1|/etc/nginx/sites/ssl/dummy/$1|g" "/etc/nginx/sites/$1.conf"
fi
}
use_lets_encrypt_certificate() {
if grep -q "/etc/nginx/sites/ssl/dummy/$1" "/etc/nginx/sites/$1.conf"; then
echo "Switching Nginx to use Let's Encrypt certificate for $1"
sed -i "s|/etc/nginx/sites/ssl/dummy/$1|/etc/letsencrypt/live/$1|g" "/etc/nginx/sites/$1.conf"
fi
}
reload_nginx() {
echo "Reloading Nginx configuration"
nginx -s reload
}
wait_for_lets_encrypt() {
until [ -d "/etc/letsencrypt/live/$1" ]; do
echo "Waiting for Let's Encrypt certificates for $1"
sleep 5s & wait ${!}
done
use_lets_encrypt_certificate "$1"
reload_nginx
}
if [ ! -f /etc/nginx/sites/ssl/ssl-dhparams.pem ]; then
mkdir -p "/etc/nginx/sites/ssl"
openssl dhparam -out /etc/nginx/sites/ssl/ssl-dhparams.pem 2048
fi
domains_fixed=$(echo "$DOMAINS" | tr -d \")
for domain in $domains_fixed; do
echo "Checking configuration for $domain"
if [ ! -f "/etc/nginx/sites/$domain.conf" ]; then
echo "Creating Nginx configuration file /etc/nginx/sites/$domain.conf"
sed "s/\${domain}/$domain/g" /customization/site.conf.tpl > "/etc/nginx/sites/$domain.conf"
fi
if [ ! -f "/etc/nginx/sites/ssl/dummy/$domain/fullchain.pem" ]; then
echo "Generating dummy ceritificate for $domain"
mkdir -p "/etc/nginx/sites/ssl/dummy/$domain"
printf "[dn]\nCN=${domain}\n[req]\ndistinguished_name = dn\n[EXT]\nsubjectAltName=DNS:$domain, DNS:www.$domain\nkeyUsage=digitalSignature\nextendedKeyUsage=serverAuth" > openssl.cnf
openssl req -x509 -out "/etc/nginx/sites/ssl/dummy/$domain/fullchain.pem" -keyout "/etc/nginx/sites/ssl/dummy/$domain/privkey.pem" \
-newkey rsa:2048 -nodes -sha256 \
-subj "/CN=${domain}" -extensions EXT -config openssl.cnf
rm -f openssl.cnf
fi
if [ ! -d "/etc/letsencrypt/live/$domain" ]; then
use_dummy_certificate "$domain"
wait_for_lets_encrypt "$domain" &
else
use_lets_encrypt_certificate "$domain"
fi
done
exec nginx -g "daemon off;"