vigil

Security camera system built on motion and yolov7.
git clone git://code.dwrz.net/vigil
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ddns (885B)

      1 #!/usr/bin/env bash
      2 
      3 readonly HZ="${AWS_HOSTED_ZONE}"
      4 readonly DOMAIN="${HOSTNAME}"
      5 
      6 err() {
      7   echo "[$(date -u +'%Y-%m-%dT%H:%M:%S%:z')]: $*" >&2
      8 }
      9 
     10 main() {
     11   if ! [[ -x "$(command -v aws)" ]]; then
     12     err "aws cli not installed"; exit 1
     13   fi
     14 
     15   # Get the IP address.
     16   ip="$(dig -4 +short myip.opendns.com @resolver1.opendns.com)"
     17   if [[ -z "${ip}" ]]; then
     18     err "failed to get ip address"; exit 2
     19   fi
     20   printf "ip: %s\n" "${ip}"
     21 
     22   # Update the domains.
     23   update='{
     24   "Comment": "DDNS",
     25   "Changes": [
     26    {
     27      "Action": "UPSERT",
     28      "ResourceRecordSet": {
     29        "Name": "'"${DOMAIN}"'",
     30        "Type": "A",
     31        "TTL": 300,
     32        "ResourceRecords": [{ "Value": "'"${ip}"'" }]
     33      }
     34    }
     35  ]
     36 }'
     37 
     38   printf "requesting update for %s\n" "${DOMAIN}"
     39   aws route53 change-resource-record-sets \
     40       --hosted-zone-id "${HZ}" \
     41       --change-batch "${update}"
     42 }
     43 
     44 main "$@"