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container.training/prepare-vms/netlify-dns.sh
2022-01-17 11:08:11 +01:00

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#!/bin/sh
# https://open-api.netlify.com/#tag/dnsZone
[ "$1" ] || {
echo ""
echo "Add a record in Netlify DNS."
echo "This script is hardcoded to add a record to container.training".
echo ""
echo "Syntax:"
echo "$0 list"
echo "$0 add <name> <ipaddr>"
echo "$0 del <recordid>"
echo ""
echo "Example to create a A record for eu.container.training:"
echo "$0 add eu 185.145.250.0"
echo ""
exit 1
}
NETLIFY_USERID=$(jq .userId < ~/.config/netlify/config.json)
NETLIFY_TOKEN=$(jq -r .users[$NETLIFY_USERID].auth.token < ~/.config/netlify/config.json)
netlify() {
URI=$1
shift
http https://api.netlify.com/api/v1/$URI "$@" "Authorization:Bearer $NETLIFY_TOKEN"
}
ZONE_ID=$(netlify dns_zones |
jq -r '.[] | select ( .name == "container.training" ) | .id')
_list() {
netlify dns_zones/$ZONE_ID/dns_records |
jq -r '.[] | select(.type=="A") | [.hostname, .type, .value, .id] | @tsv'
}
_add() {
NAME=$1.container.training
ADDR=$2
# It looks like if we create two identical records, then delete one of them,
# Netlify DNS ends up in a weird state (the name doesn't resolve anymore even
# though it's still visible through the API and the website?)
if netlify dns_zones/$ZONE_ID/dns_records |
jq '.[] | select(.hostname=="'$NAME'" and .type=="A" and .value=="'$ADDR'")' |
grep .
then
echo "It looks like that record already exists. Refusing to create it."
exit 1
fi
netlify dns_zones/$ZONE_ID/dns_records type=A hostname=$NAME value=$ADDR ttl=300
netlify dns_zones/$ZONE_ID/dns_records |
jq '.[] | select(.hostname=="'$NAME'")'
}
_del() {
RECORD_ID=$1
# OK, since that one is dangerous, I'm putting the whole request explicitly here
http DELETE \
https://api.netlify.com/api/v1/dns_zones/$ZONE_ID/dns_records/$RECORD_ID \
"Authorization:Bearer $NETLIFY_TOKEN"
}
case "$1" in
list)
_list
;;
add)
_add $2 $3
;;
del)
_del $2
;;
*)
echo "Unknown command '$1'."
exit 1
;;
esac