🐚 Add script to configure Netlify DNS

prepare-vms/netlify-dns.sh

@@ -0,0 +1,47 @@
+#!/bin/sh
+
+[ "$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 <name> <ipaddr>"
+  echo ""
+  echo "Example to create a A record for eu.container.training:"
+  echo "$0 eu 185.145.250.0"
+  echo ""
+  exit 1
+}
+
+NAME=$1.container.training
+ADDR=$2
+
+NETLIFY_USERID=$(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')
+
+# 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'")'