add dyn DNS
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bin/dynDNS.sh
Executable file
176
bin/dynDNS.sh
Executable file
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#!/bin/bash
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# nohup /kaz/bin/dynDNS.sh &
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KAZ_ROOT=$(cd "$(dirname $0)"/..; pwd)
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. "${KAZ_ROOT}/bin/.commonFunctions.sh"
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setKazVars
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. "${DOCKERS_ENV}"
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# no more export in .env
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export $(set | grep "domain=")
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cd "${KAZ_ROOT}"
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export PRG="$0"
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export MYHOST="${site}"
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MYIP_URL="https://kaz.bzh/myip.php"
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DNS_IP=""
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DELAI_WAIT=10 # DNS occupé
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DELAI_GET=5 # min entre 2 requêtes
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DELAI_CHANGE=3600 # propagation 1h
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DELAI_NO_CHANGE=300 # pas de changement 5 min
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BOLD='\e[1m'
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RED='\e[0;31m'
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GREEN='\e[0;32m'
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YELLOW='\e[0;33m'
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BLUE='\e[0;34m'
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MAGENTA='\e[0;35m'
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CYAN='\e[0;36m'
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NC='\e[0m' # No Color
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NL='
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'
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export VERBOSE=""
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export SIMU=""
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usage(){
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echo "Usage: ${PRG} list [sub-domain...]"
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echo " -h help"
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echo " -v verbose"
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echo " -n simulation"
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exit 1
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}
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#. "${KAZ_KEY_DIR}/env-gandi"
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. "${KAZ_KEY_DIR}/env-alwaysdata"
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if [[ -z "${ALWAYSDATA_TOKEN}" ]] ; then
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echo "no ALWAYSDATA_TOKEN set in ${KAZ_KEY_DIR}/env-alwaysdata"
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usage
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fi
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DOMAIN_ID=$(curl -s -X GET --basic --user "${ALWAYSDATA_TOKEN} account=${ALWAYSDATA_ACCOUNT}:" ${ALWAYSDATA_API}/domain/?name=${domain} | jq '.[0].id')
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if [[ -z "${DOMAIN_ID}" ]] ; then
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echo "no DOMAIN_ID give by alwaysdata"
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usage
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fi
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# if [[ -z "${GANDI_KEY}" ]] ; then
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# echo
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# echo "no GANDI_KEY set in ${KAZ_KEY_DIR}/env-gandi"
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# usage
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# exit
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# fi
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for ARG in $@
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do
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case "${ARG}" in
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'-h' | '-help' )
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usage
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;;
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'-v' )
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shift
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export VERBOSE=":"
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;;
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'-n' )
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shift
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export SIMU="echo"
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;;
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* )
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usage
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;;
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esac
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done
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log () {
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echo -e "${BLUE}$(date +%d-%m-%Y-%H-%M-%S)${NC} : $*"
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}
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simu () {
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echo -e "${YELLOW}$(date +%d-%m-%Y-%H-%M-%S)${NC} : $*"
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}
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cmdWait () {
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#ex gandi
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#curl -H "authorization: Apikey ${GANDI_KEY}" --connect-timeout 2 -s -D - -o /dev/null "${GANDI_API}" 2>/dev/null
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curl -s -X GET --basic --user "${ALWAYSDATA_TOKEN} account=${ALWAYSDATA_ACCOUNT}:" --connect-timeout 2 -D - -o /dev/null "${ALWAYSDATA_API}/record/?domain=${DOMAIN_ID}&type=CNAME&name=${TARGET}" 2>/dev/null
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}
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waitNet () {
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### wait when error code 503
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if [[ $(cmdWait | head -n1) != *200* ]]; then
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log "DNS not available. Please wait..."
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while [[ $(cmdWait | head -n1) != *200* ]]; do
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[[ -z "${VERBOSE}" ]] || simu curl -s -X GET --basic --user "${ALWAYSDATA_TOKEN} account=${ALWAYSDATA_ACCOUNT}:" --connect-timeout 2 -D - -o /dev/null "${ALWAYSDATA_API}/record/?domain=${DOMAIN_ID}&type=CNAME&name=${TARGET}"
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sleep "${DELAI_WAIT}"
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done
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exit
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fi
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}
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getDNS () {
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# curl -s -X GET "${GANDI_API}/records" -H "authorization: Apikey ${GANDI_KEY}"|
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# sed "s/,{/\n/g"|
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# sed 's/.*rrset_name":"\([^"]*\)".*rrset_values":\["\([^"]*\)".*/\1:\2/g'|
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# grep -e "^${MYHOST}:"|
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# sed "s/^${MYHOST}://g" |
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# tr -d '\n\t\r '
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${SIMU} curl -s -X GET --basic --user "${ALWAYSDATA_TOKEN} account=${ALWAYSDATA_ACCOUNT}:" "${ALWAYSDATA_API}/record/?domain=${DOMAIN_ID}&type=A&name=${MYHOST}" | jq '.[] | "\(.value)"' | tr -d '"'
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}
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saveDns () {
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mkdir -p /root/dns
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${SIMU} curl -s -X GET --basic --user "${ALWAYSDATA_TOKEN} account=${ALWAYSDATA_ACCOUNT}:" "${ALWAYSDATA_API}/record/?domain=${DOMAIN_ID}" -o /root/dns/dns_save_$(date +'%Y%m%d%H%M%S')
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}
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setDNS () {
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saveDns
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# curl -s -X POST "${GANDI_API}/records" -H "authorization: Apikey ${GANDI_KEY}" -H 'content-type: application/json' -d '{"rrset_type":"A", "rrset_name":"'${MYHOST}'", "rrset_values":["'${IP}'"]}'
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${SIMU} curl -s -X POST -d "{\"domain\":\"${DOMAIN_ID}\", \"type\":\"A\", \"name\":\"${MYHOST}\", \"value\":\"${IP}\"}" --basic --user "${ALWAYSDATA_TOKEN} account=${ALWAYSDATA_ACCOUNT}:" "${ALWAYSDATA_API}/record/"
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}
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while :; do
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sleep "${DELAI_GET}"
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IP=$(curl -s "${MYIP_URL}" | grep -Eo '([0-9]{1,3}\.){3}[0-9]{1,3}' | tr -d '\n\t\r ')
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if ! [[ ${IP} =~ ^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
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log "BAB IP ${IP}" ; continue
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fi
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if [ -z "${DNS_IP}" ]; then
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# Variable pas encore initialisée
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waitNet
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DNS_IP=$(getDNS)
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if [ -z "${DNS_IP}" ]; then
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# C'est la première fois que le site est en prod
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log "set ${MYHOST} : ${IP}"
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setDNS
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DNS_IP=$(getDNS)
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log "DNS set ${MYHOST}:${IP} (=${DNS_IP})"
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sleep "${DELAI_CHANGE}"
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continue
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fi
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fi
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if [ "${DNS_IP}" != "${IP}" ]; then
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log "${MYHOST} : ${DNS_IP} must change to ${IP}"
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# Changement d'adresse
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waitNet
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#curl -s -X DELETE "${GANDI_API}/records/${MYHOST}" -H "authorization: Apikey ${GANDI_KEY}"
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RECORD_ID=$(curl -s -X GET --basic --user "${ALWAYSDATA_TOKEN} account=${ALWAYSDATA_ACCOUNT}:" "${ALWAYSDATA_API}/record/?name=${MYHOST}&type=A&domain=${DOMAIN_ID}" | jq ".[] | select(.name==\"${MYHOST}\").id")
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${SIMU} curl -s -X DELETE --basic --user "${ALWAYSDATA_TOKEN} account=${ALWAYSDATA_ACCOUNT}:" "${ALWAYSDATA_API}/record/${RECORD_ID}/"
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setDNS
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DNS_IP=$(getDNS)
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log "DNS reset ${MYHOST}:${IP} (=${DNS_IP})"
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sleep "${DELAI_CHANGE}"
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else
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log "OK ${MYHOST}:${DNS_IP} / ${IP}"
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sleep ${DELAI_NO_CHANGE}
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fi
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done
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