Files
addons/duckdns/data/run.sh
tux2000 fb3919fc31 Add option for SSL cert algorithm in DuckDNS addon (#2189)
* Add option for SSL cert algorithm in DuckDNS addon

* Documentation

* Apply suggestions from code review

Co-authored-by: Joakim Sørensen <hi@ludeeus.dev>

* Update CHANGELOG

* Apply suggestions from code review

Co-authored-by: Joakim Sørensen <hi@ludeeus.dev>
Co-authored-by: Pascal Vizeli <pascal.vizeli@syshack.ch>
2021-09-27 12:19:23 +02:00

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#!/usr/bin/env bashio
CERT_DIR=/data/letsencrypt
WORK_DIR=/data/workdir
# Let's encrypt
LE_UPDATE="0"
# DuckDNS
if bashio::config.has_value "ipv4"; then IPV4=$(bashio::config 'ipv4'); else IPV4=""; fi
if bashio::config.has_value "ipv6"; then IPV6=$(bashio::config 'ipv6'); else IPV6=""; fi
TOKEN=$(bashio::config 'token')
DOMAINS=$(bashio::config 'domains | join(",")')
WAIT_TIME=$(bashio::config 'seconds')
ALGO=$(bashio::config 'lets_encrypt.algo')
# Function that performe a renew
function le_renew() {
local domain_args=()
local domains=''
local aliases=''
domains=$(bashio::config 'domains')
# Prepare domain for Let's Encrypt
for domain in ${domains}; do
for alias in $(jq --raw-output --exit-status "[.aliases[]|{(.alias):.domain}]|add.\"${domain}\" | select(. != null)" /data/options.json) ; do
aliases="${aliases} ${alias}"
done
done
aliases="$(echo "${aliases}" | tr ' ' '\n' | sort | uniq)"
bashio::log.info "Renew certificate for domains: $(echo -n "${domains}") and aliases: $(echo -n "${aliases}")"
for domain in $(echo "${domains}" "${aliases}" | tr ' ' '\n' | sort | uniq); do
domain_args+=("--domain" "${domain}")
done
dehydrated --cron --algo "${ALGO}" --hook ./hooks.sh --challenge dns-01 "${domain_args[@]}" --out "${CERT_DIR}" --config "${WORK_DIR}/config" || true
LE_UPDATE="$(date +%s)"
}
# Register/generate certificate if terms accepted
if bashio::config.true 'lets_encrypt.accept_terms'; then
# Init folder structs
mkdir -p "${CERT_DIR}"
mkdir -p "${WORK_DIR}"
# Clean up possible stale lock file
if [ -e "${WORK_DIR}/lock" ]; then
rm -f "${WORK_DIR}/lock"
bashio::log.warning "Reset dehydrated lock file"
fi
# Generate new certs
if [ ! -d "${CERT_DIR}/live" ]; then
# Create empty dehydrated config file so that this dir will be used for storage
touch "${WORK_DIR}/config"
dehydrated --register --accept-terms --config "${WORK_DIR}/config"
fi
fi
# Run duckdns
while true; do
[[ ${IPV4} != *:/* ]] && ipv4=${IPV4} || ipv4=$(curl -s -m 10 "${IPV4}")
[[ ${IPV6} != *:/* ]] && ipv6=${IPV6} || ipv6=$(curl -s -m 10 "${IPV6}")
if answer="$(curl -s "https://www.duckdns.org/update?domains=${DOMAINS}&token=${TOKEN}&ip=${ipv4}&ipv6=${ipv6}&verbose=true")" && [ "${answer}" != 'KO' ]; then
bashio::log.info "${answer}"
else
bashio::log.warning "${answer}"
fi
now="$(date +%s)"
if bashio::config.true 'lets_encrypt.accept_terms' && [ $((now - LE_UPDATE)) -ge 43200 ]; then
le_renew
fi
sleep "${WAIT_TIME}"
done