docker-swag/root/etc/cont-init.d/50-certbot

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#!/usr/bin/with-contenv bash
# Display variables for troubleshooting
echo -e "Variables set:\\n\
PUID=${PUID}\\n\
PGID=${PGID}\\n\
TZ=${TZ}\\n\
URL=${URL}\\n\
SUBDOMAINS=${SUBDOMAINS}\\n\
EXTRA_DOMAINS=${EXTRA_DOMAINS}\\n\
ONLY_SUBDOMAINS=${ONLY_SUBDOMAINS}\\n\
VALIDATION=${VALIDATION}\\n\
CERTPROVIDER=${CERTPROVIDER}\\n\
DNSPLUGIN=${DNSPLUGIN}\\n\
EMAIL=${EMAIL}\\n\
STAGING=${STAGING}\\n"
# Sanitize variables
SANED_VARS=( DNSPLUGIN EMAIL EXTRA_DOMAINS ONLY_SUBDOMAINS STAGING SUBDOMAINS URL VALIDATION CERTPROVIDER )
for i in "${SANED_VARS[@]}"
do
export echo "$i"="${!i//\"/}"
export echo "$i"="$(echo "${!i}" | tr '[:upper:]' '[:lower:]')"
done
# copy dns default configs
cp -n /defaults/dns-conf/* /config/dns-conf/
chown -R abc:abc /config/dns-conf
# check to make sure DNSPLUGIN is selected if dns validation is used
if [[ "$VALIDATION" = "dns" ]] && [[ ! "$DNSPLUGIN" =~ ^(aliyun|azure|cloudflare|cloudxns|cpanel|desec|digitalocean|directadmin|dnsimple|dnsmadeeasy|dnspod|domeneshop|dynu|gandi|gehirn|google|he|hetzner|infomaniak|inwx|ionos|linode|loopia|luadns|netcup|njalla|nsone|ovh|rfc2136|route53|sakuracloud|standalone|transip|vultr)$ ]]; then
echo "Please set the DNSPLUGIN variable to a valid plugin name. See docker info for more details."
sleep infinity
fi
# create original config file if it doesn't exist, move non-hidden legacy file to hidden
if [ -f "/config/donoteditthisfile.conf" ]; then
mv /config/donoteditthisfile.conf /config/.donoteditthisfile.conf
fi
if [ ! -f "/config/.donoteditthisfile.conf" ]; then
echo -e "ORIGURL=\"$URL\" ORIGSUBDOMAINS=\"$SUBDOMAINS\" ORIGONLY_SUBDOMAINS=\"$ONLY_SUBDOMAINS\" ORIGEXTRA_DOMAINS=\"$EXTRA_DOMAINS\" ORIGVALIDATION=\"$VALIDATION\" ORIGDNSPLUGIN=\"$DNSPLUGIN\" ORIGPROPAGATION=\"$PROPAGATION\" ORIGSTAGING=\"$STAGING\" ORIGDUCKDNSTOKEN=\"$DUCKDNSTOKEN\" ORIGCERTPROVIDER=\"$CERTPROVIDER\" ORIGEMAIL=\"$EMAIL\"" > /config/.donoteditthisfile.conf
echo "Created .donoteditthisfile.conf"
fi
# load original config settings
# shellcheck disable=SC1091
. /config/.donoteditthisfile.conf
# set default validation to http
if [ -z "$VALIDATION" ]; then
VALIDATION="http"
echo "VALIDATION parameter not set; setting it to http"
fi
# if zerossl is selected or staging is set to true, use the relevant server
if [ "$CERTPROVIDER" = "zerossl" ] && [ "$STAGING" = "true" ]; then
echo "ZeroSSL does not support staging mode, ignoring STAGING variable"
fi
if [ "$CERTPROVIDER" = "zerossl" ] && [ -n "$EMAIL" ]; then
echo "ZeroSSL is selected as the cert provider, registering cert with $EMAIL"
ACMESERVER="https://acme.zerossl.com/v2/DV90"
elif [ "$CERTPROVIDER" = "zerossl" ] && [ -z "$EMAIL" ]; then
echo "ZeroSSL is selected as the cert provider, but the e-mail address has not been entered. Please visit https://zerossl.com, register a new account and set the account e-mail address in the EMAIL environment variable"
sleep infinity
elif [ "$STAGING" = "true" ]; then
echo "NOTICE: Staging is active"
echo "Using Let's Encrypt as the cert provider"
ACMESERVER="https://acme-staging-v02.api.letsencrypt.org/directory"
else
echo "Using Let's Encrypt as the cert provider"
ACMESERVER="https://acme-v02.api.letsencrypt.org/directory"
fi
# figuring out url only vs url & subdomains vs subdomains only
if [ -n "$SUBDOMAINS" ]; then
echo "SUBDOMAINS entered, processing"
if [ "$SUBDOMAINS" = "wildcard" ]; then
if [ "$ONLY_SUBDOMAINS" = true ]; then
export URL_REAL="-d *.${URL}"
echo "Wildcard cert for only the subdomains of $URL will be requested"
else
export URL_REAL="-d *.${URL} -d ${URL}"
echo "Wildcard cert for $URL will be requested"
fi
else
echo "SUBDOMAINS entered, processing"
for job in $(echo "$SUBDOMAINS" | tr "," " "); do
export SUBDOMAINS_REAL="$SUBDOMAINS_REAL -d ${job}.${URL}"
done
if [ "$ONLY_SUBDOMAINS" = true ]; then
URL_REAL="$SUBDOMAINS_REAL"
echo "Only subdomains, no URL in cert"
else
URL_REAL="-d ${URL}${SUBDOMAINS_REAL}"
fi
echo "Sub-domains processed are: $SUBDOMAINS_REAL"
fi
else
echo "No subdomains defined"
URL_REAL="-d $URL"
fi
# add extra domains
if [ -n "$EXTRA_DOMAINS" ]; then
echo "EXTRA_DOMAINS entered, processing"
for job in $(echo "$EXTRA_DOMAINS" | tr "," " "); do
export EXTRA_DOMAINS_REAL="$EXTRA_DOMAINS_REAL -d ${job}"
done
echo "Extra domains processed are: $EXTRA_DOMAINS_REAL"
URL_REAL="$URL_REAL $EXTRA_DOMAINS_REAL"
fi
# figuring out whether to use e-mail and which
if [[ $EMAIL == *@* ]]; then
echo "E-mail address entered: ${EMAIL}"
EMAILPARAM="-m ${EMAIL} --no-eff-email"
else
echo "No e-mail address entered or address invalid"
EMAILPARAM="--register-unsafely-without-email"
fi
# update plugin names in dns conf inis
sed -i 's|^certbot_dns_aliyun:||g' /config/dns-conf/aliyun.ini
sed -i 's|^certbot_dns_domeneshop:||g' /config/dns-conf/domeneshop.ini
sed -i 's|^certbot_dns_inwx:||g' /config/dns-conf/inwx.ini
sed -i 's|^certbot_dns_transip:||g' /config/dns-conf/transip.ini
# setting the validation method to use
if [ "$VALIDATION" = "dns" ]; then
if [ "$DNSPLUGIN" = "route53" ]; then
if [ -n "$PROPAGATION" ];then PROPAGATIONPARAM="--dns-${DNSPLUGIN}-propagation-seconds ${PROPAGATION}"; fi
PREFCHAL="--dns-${DNSPLUGIN} ${PROPAGATIONPARAM}"
elif [[ "$DNSPLUGIN" =~ ^(cpanel)$ ]]; then
if [ -n "$PROPAGATION" ];then PROPAGATIONPARAM="--certbot-dns-${DNSPLUGIN}:${DNSPLUGIN}-propagation-seconds ${PROPAGATION}"; fi
PREFCHAL="-a certbot-dns-${DNSPLUGIN}:${DNSPLUGIN} --certbot-dns-${DNSPLUGIN}:${DNSPLUGIN}-credentials /config/dns-conf/${DNSPLUGIN}.ini ${PROPAGATIONPARAM}"
elif [[ "$DNSPLUGIN" =~ ^(gandi)$ ]]; then
if [ -n "$PROPAGATION" ];then echo "Gandi dns plugin does not support setting propagation time"; fi
PREFCHAL="-a certbot-plugin-${DNSPLUGIN}:dns --certbot-plugin-${DNSPLUGIN}:dns-credentials /config/dns-conf/${DNSPLUGIN}.ini"
elif [[ "$DNSPLUGIN" =~ ^(google)$ ]]; then
if [ -n "$PROPAGATION" ];then PROPAGATIONPARAM="--dns-${DNSPLUGIN}-propagation-seconds ${PROPAGATION}"; fi
PREFCHAL="--dns-${DNSPLUGIN} --dns-${DNSPLUGIN}-credentials /config/dns-conf/${DNSPLUGIN}.json ${PROPAGATIONPARAM}"
elif [[ "$DNSPLUGIN" =~ ^(aliyun|desec|dnspod|domeneshop|dynu|he|hetzner|infomaniak|inwx|ionos|loopia|netcup|njalla|transip|vultr)$ ]]; then
if [ -n "$PROPAGATION" ];then PROPAGATIONPARAM="--dns-${DNSPLUGIN}-propagation-seconds ${PROPAGATION}"; fi
PREFCHAL="-a dns-${DNSPLUGIN} --dns-${DNSPLUGIN}-credentials /config/dns-conf/${DNSPLUGIN}.ini ${PROPAGATIONPARAM}"
elif [[ "$DNSPLUGIN" =~ ^(standalone)$ ]]; then
if [ -n "$PROPAGATION" ];then echo "standalone dns plugin does not support setting propagation time"; fi
PREFCHAL="-a dns-${DNSPLUGIN}"
elif [[ "$DNSPLUGIN" =~ ^(directadmin)$ ]]; then
if [ -n "$PROPAGATION" ];then PROPAGATIONPARAM="--${DNSPLUGIN}-propagation-seconds ${PROPAGATION}"; fi
PREFCHAL="-a ${DNSPLUGIN} --${DNSPLUGIN}-credentials /config/dns-conf/${DNSPLUGIN}.ini ${PROPAGATIONPARAM}"
elif [[ "$DNSPLUGIN" =~ ^(azure)$ ]]; then
if [ -n "$PROPAGATION" ];then echo "Azure dns plugin does not support setting propagation time"; fi
PREFCHAL="-a dns-${DNSPLUGIN} --dns-${DNSPLUGIN}-credentials /config/dns-conf/${DNSPLUGIN}.ini"
else
if [ -n "$PROPAGATION" ];then PROPAGATIONPARAM="--dns-${DNSPLUGIN}-propagation-seconds ${PROPAGATION}"; fi
PREFCHAL="--dns-${DNSPLUGIN} --dns-${DNSPLUGIN}-credentials /config/dns-conf/${DNSPLUGIN}.ini ${PROPAGATIONPARAM}"
fi
echo "${VALIDATION} validation via ${DNSPLUGIN} plugin is selected"
elif [ "$VALIDATION" = "tls-sni" ]; then
PREFCHAL="--non-interactive --standalone --preferred-challenges http"
echo "*****tls-sni validation has been deprecated, attempting http validation instead"
elif [ "$VALIDATION" = "duckdns" ]; then
PREFCHAL="--non-interactive --manual --preferred-challenges dns --manual-auth-hook /app/duckdns-txt"
chmod +x /app/duckdns-txt
echo "duckdns validation is selected"
if [ "$SUBDOMAINS" = "wildcard" ]; then
echo "the resulting certificate will only cover the subdomains due to a limitation of duckdns, so it is advised to set the root location to use www.subdomain.duckdns.org"
export URL_REAL="-d *.${URL}"
else
echo "the resulting certificate will only cover the main domain due to a limitation of duckdns, ie. subdomain.duckdns.org"
export URL_REAL="-d ${URL}"
fi
else
PREFCHAL="--non-interactive --standalone --preferred-challenges http"
echo "http validation is selected"
fi
# setting the symlink for key location
rm -rf /config/keys/letsencrypt
if [ "$ONLY_SUBDOMAINS" = "true" ] && [ ! "$SUBDOMAINS" = "wildcard" ] ; then
DOMAIN="$(echo "$SUBDOMAINS" | tr ',' ' ' | awk '{print $1}').${URL}"
ln -s ../etc/letsencrypt/live/"$DOMAIN" /config/keys/letsencrypt
else
ln -s ../etc/letsencrypt/live/"$URL" /config/keys/letsencrypt
fi
rm -rf /config/keys/cert.crt
ln -s ./letsencrypt/fullchain.pem /config/keys/cert.crt
rm -rf /config/keys/cert.key
ln -s ./letsencrypt/privkey.pem /config/keys/cert.key
# checking for changes in cert variables, revoking certs if necessary
if [ ! "$URL" = "$ORIGURL" ] || [ ! "$SUBDOMAINS" = "$ORIGSUBDOMAINS" ] || [ ! "$ONLY_SUBDOMAINS" = "$ORIGONLY_SUBDOMAINS" ] || [ ! "$EXTRA_DOMAINS" = "$ORIGEXTRA_DOMAINS" ] || [ ! "$VALIDATION" = "$ORIGVALIDATION" ] || [ ! "$DNSPLUGIN" = "$ORIGDNSPLUGIN" ] || [ ! "$PROPAGATION" = "$ORIGPROPAGATION" ] || [ ! "$STAGING" = "$ORIGSTAGING" ] || [ ! "$DUCKDNSTOKEN" = "$ORIGDUCKDNSTOKEN" ] || [ ! "$CERTPROVIDER" = "$ORIGCERTPROVIDER" ]; then
echo "Different validation parameters entered than what was used before. Revoking and deleting existing certificate, and an updated one will be created"
if [ "$ORIGONLY_SUBDOMAINS" = "true" ] && [ ! "$ORIGSUBDOMAINS" = "wildcard" ]; then
ORIGDOMAIN="$(echo "$ORIGSUBDOMAINS" | tr ',' ' ' | awk '{print $1}').${ORIGURL}"
else
ORIGDOMAIN="$ORIGURL"
fi
if [ "$ORIGCERTPROVIDER" = "zerossl" ] && [ -n "$ORIGEMAIL" ]; then
REV_EAB_CREDS=$(curl -s https://api.zerossl.com/acme/eab-credentials-email --data "email=$ORIGEMAIL")
REV_ZEROSSL_EAB_KID=$(echo "$REV_EAB_CREDS" | python3 -c "import sys, json; print(json.load(sys.stdin)['eab_kid'])")
REV_ZEROSSL_EAB_HMAC_KEY=$(echo "$REV_EAB_CREDS" | python3 -c "import sys, json; print(json.load(sys.stdin)['eab_hmac_key'])")
if [ -z "$REV_ZEROSSL_EAB_KID" ] || [ -z "$REV_ZEROSSL_EAB_HMAC_KEY" ]; then
echo "Unable to retrieve EAB credentials from ZeroSSL. Check the outgoing connections to api.zerossl.com and dns. Sleeping."
sleep infinity
fi
REV_ACMESERVER="https://acme.zerossl.com/v2/DV90 --eab-kid ${REV_ZEROSSL_EAB_KID} --eab-hmac-key ${REV_ZEROSSL_EAB_HMAC_KEY}"
elif [ "$ORIGSTAGING" = "true" ]; then
REV_ACMESERVER="https://acme-staging-v02.api.letsencrypt.org/directory"
else
REV_ACMESERVER="https://acme-v02.api.letsencrypt.org/directory"
fi
if [[ -f /config/etc/letsencrypt/live/"$ORIGDOMAIN"/fullchain.pem ]]; then
certbot revoke --non-interactive --cert-path /config/etc/letsencrypt/live/"$ORIGDOMAIN"/fullchain.pem --server $REV_ACMESERVER
fi
rm -rf /config/etc/letsencrypt
mkdir -p /config/etc/letsencrypt
fi
# saving new variables
echo -e "ORIGURL=\"$URL\" ORIGSUBDOMAINS=\"$SUBDOMAINS\" ORIGONLY_SUBDOMAINS=\"$ONLY_SUBDOMAINS\" ORIGEXTRA_DOMAINS=\"$EXTRA_DOMAINS\" ORIGVALIDATION=\"$VALIDATION\" ORIGDNSPLUGIN=\"$DNSPLUGIN\" ORIGPROPAGATION=\"$PROPAGATION\" ORIGSTAGING=\"$STAGING\" ORIGDUCKDNSTOKEN=\"$DUCKDNSTOKEN\" ORIGCERTPROVIDER=\"$CERTPROVIDER\" ORIGEMAIL=\"$EMAIL\"" > /config/.donoteditthisfile.conf
# alter extension for error message
if [ "$DNSPLUGIN" = "google" ]; then
FILENAME="$DNSPLUGIN.json"
else
FILENAME="$DNSPLUGIN.ini"
fi
# Check if the cert is using the old LE root cert, revoke and regen if necessary
if [ -f "/config/keys/letsencrypt/chain.pem" ] && ([ "${CERTPROVIDER}" == "letsencrypt" ] || [ "${CERTPROVIDER}" == "" ]) && [ "${STAGING}" != "true" ] && ! openssl x509 -in /config/keys/letsencrypt/chain.pem -noout -issuer | grep -q "ISRG Root X"; then
echo "The cert seems to be using the old LE root cert, which is no longer valid. Deleting and revoking."
REV_ACMESERVER="https://acme-v02.api.letsencrypt.org/directory"
certbot revoke --non-interactive --cert-path /config/etc/letsencrypt/live/"$ORIGDOMAIN"/fullchain.pem --server $REV_ACMESERVER
rm -rf /config/etc/letsencrypt
mkdir -p /config/etc/letsencrypt
fi
# generating certs if necessary
if [ ! -f "/config/keys/letsencrypt/fullchain.pem" ]; then
if [ "$CERTPROVIDER" = "zerossl" ] && [ -n "$EMAIL" ]; then
echo "Retrieving EAB from ZeroSSL"
EAB_CREDS=$(curl -s https://api.zerossl.com/acme/eab-credentials-email --data "email=$EMAIL")
ZEROSSL_EAB_KID=$(echo "$EAB_CREDS" | python3 -c "import sys, json; print(json.load(sys.stdin)['eab_kid'])")
ZEROSSL_EAB_HMAC_KEY=$(echo "$EAB_CREDS" | python3 -c "import sys, json; print(json.load(sys.stdin)['eab_hmac_key'])")
if [ -z "$ZEROSSL_EAB_KID" ] || [ -z "$ZEROSSL_EAB_HMAC_KEY" ]; then
echo "Unable to retrieve EAB credentials from ZeroSSL. Check the outgoing connections to api.zerossl.com and dns. Sleeping."
sleep infinity
fi
ZEROSSL_EAB="--eab-kid ${ZEROSSL_EAB_KID} --eab-hmac-key ${ZEROSSL_EAB_HMAC_KEY}"
fi
echo "Generating new certificate"
# shellcheck disable=SC2086
certbot certonly --renew-by-default --server $ACMESERVER $ZEROSSL_EAB $PREFCHAL --rsa-key-size 4096 $EMAILPARAM --agree-tos $URL_REAL
if [ -d /config/keys/letsencrypt ]; then
cd /config/keys/letsencrypt || exit
else
if [ "$VALIDATION" = "dns" ]; then
echo "ERROR: Cert does not exist! Please see the validation error above. Make sure you entered correct credentials into the /config/dns-conf/${FILENAME} file."
elif [ "$VALIDATION" = "duckdns" ]; then
echo "ERROR: Cert does not exist! Please see the validation error above. Make sure your DUCKDNSTOKEN is correct."
else
echo "ERROR: Cert does not exist! Please see the validation error above. The issue may be due to incorrect dns or port forwarding settings. Please fix your settings and recreate the container"
fi
sleep infinity
fi
openssl pkcs12 -export -out privkey.pfx -inkey privkey.pem -in cert.pem -certfile chain.pem -passout pass:
sleep 1
cat {privkey,fullchain}.pem > priv-fullchain-bundle.pem
echo "New certificate generated; starting nginx"
else
echo "Certificate exists; parameters unchanged; starting nginx"
fi