11b0c17767
Added note about proxied DNS records to README.md Updated CNAME record docs Adjusted format of docker-compose.yml variables Re-ordered README.md variables to match docker-compose.yml Added DNS record conditions to README.md Added duckdns container to docker-compose.yml Added default value checks to start.sh
100 lines
3 KiB
Bash
100 lines
3 KiB
Bash
#!/bin/sh
|
|
|
|
# Check variables DUCKDNS_TOKEN, DUCKDNS_DOMAIN
|
|
if [ -z "$DUCKDNS_TOKEN" ] || [ "$DUCKDNS_TOKEN" = "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX" ]; then
|
|
echo "ERROR: Variable DUCKDNS_TOKEN is unset or still its default value"
|
|
exit 1
|
|
fi
|
|
|
|
if [ -z "$DUCKDNS_DOMAIN" ]; then
|
|
echo "ERROR: Variable DUCKDNS_DOMAIN is unset or still its default value"
|
|
exit 1
|
|
fi
|
|
|
|
# Print email notice if applicable
|
|
if [ -z "$LETSENCRYPT_EMAIL" ]; then
|
|
echo "WARNING: You will not receive SSL certificate expiration notices"
|
|
fi
|
|
|
|
# Set LETSENCRYPT_DOMAIN to DUCKDNS_DOMAIN if not specified
|
|
if [ -z "$LETSENCRYPT_DOMAIN" ]; then
|
|
echo "INFO: LETSENCRYPT_DOMAIN is unset, using DUCKDNS_DOMAIN"
|
|
LETSENCRYPT_DOMAIN=$DUCKDNS_DOMAIN
|
|
fi
|
|
|
|
# Set certificate url based on LETSENCRYPT_WILDCARD value
|
|
if [ "$LETSENCRYPT_WILDCARD" = "true" ]; then
|
|
echo "INFO: A wildcard SSL certificate will be created"
|
|
LETSENCRYPT_DOMAIN="*.$LETSENCRYPT_DOMAIN"
|
|
else
|
|
LETSENCRYPT_WILDCARD="false"
|
|
fi
|
|
|
|
# Set user and group ID's for files
|
|
if [ -z "$UID" ]; then
|
|
echo "INFO: No UID specified, using root UID of 0"
|
|
UID=0
|
|
fi
|
|
|
|
if [ -z "$GID" ]; then
|
|
echo "INFO: No GID specified, using root GID of 0"
|
|
GID=0
|
|
fi
|
|
|
|
# Print variables
|
|
echo "DUCKDNS_TOKEN: $DUCKDNS_TOKEN"
|
|
echo "DUCKDNS_DOMAIN: $DUCKDNS_DOMAIN"
|
|
echo "LETSENCRYPT_DOMAIN: $LETSENCRYPT_DOMAIN"
|
|
echo "LETSENCRYPT_EMAIL: $LETSENCRYPT_EMAIL"
|
|
echo "LETSENCRYPT_WILDCARD: $LETSENCRYPT_WILDCARD"
|
|
echo "TESTING: $TESTING"
|
|
echo "UID: $UID"
|
|
echo "GID: $GID"
|
|
|
|
if [ -z "$LETSENCRYPT_EMAIL" ]; then
|
|
EMAIL_PARAM="--register-unsafely-without-email"
|
|
else
|
|
EMAIL_PARAM="-m $LETSENCRYPT_EMAIL --no-eff-email"
|
|
fi
|
|
|
|
if [ "$TESTING" = "true" ]; then
|
|
echo "INFO: Generating staging certificate"
|
|
TEST_PARAM="--test-cert"
|
|
else
|
|
unset TEST_PARAM
|
|
fi
|
|
|
|
echo "certbot certonly --manual --preferred-challenges dns \
|
|
--manual-auth-hook /scripts/auth.sh \
|
|
--manual-cleanup-hook /scripts/cleanup.sh \
|
|
$EMAIL_PARAM -d $LETSENCRYPT_DOMAIN \
|
|
--agree-tos --manual-public-ip-logging-ok --keep $TEST_PARAM"
|
|
|
|
# Create certificates
|
|
certbot certonly --manual --preferred-challenges dns \
|
|
--manual-auth-hook /scripts/auth.sh \
|
|
--manual-cleanup-hook /scripts/cleanup.sh \
|
|
$EMAIL_PARAM -d $LETSENCRYPT_DOMAIN \
|
|
--agree-tos --manual-public-ip-logging-ok --keep $TEST_PARAM
|
|
|
|
chown -R $UID:$GID /etc/letsencrypt
|
|
|
|
# Check for successful certificate generation
|
|
if [ ! -d "/etc/letsencrypt/live/${LETSENCRYPT_DOMAIN#\*\.}" ] || \
|
|
[ ! -f "/etc/letsencrypt/live/${LETSENCRYPT_DOMAIN#\*\.}/fullchain.pem" ] || \
|
|
[ ! -f "/etc/letsencrypt/live/${LETSENCRYPT_DOMAIN#\*\.}/privkey.pem" ]; then
|
|
echo "ERROR: Failed to create SSL certificates"
|
|
exit 1
|
|
fi
|
|
|
|
# Check if certificates require renewal twice a day
|
|
while :; do
|
|
# Wait for a random period within the next 12 hours
|
|
LETSENCRYPT_DELAY=$(shuf -i 1-720 -n 1)
|
|
echo "Sleeping for $(($LETSENCRYPT_DELAY / 60)) hour(s) and $(($LETSENCRYPT_DELAY % 60)) minute(s)"
|
|
sleep $((${LETSENCRYPT_DELAY} * 60)) # Convert to seconds
|
|
|
|
echo "INFO: Attempting SSL certificate renewal"
|
|
certbot --manual-public-ip-logging-ok renew
|
|
chown -R $UID:$GID /etc/letsencrypt
|
|
done
|