From e67fca695eee3b21f4bfebf081c1f11c8a392c5c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Petazzoni?= <jerome.petazzoni@gmail.com>
Date: Mon, 3 Jan 2022 13:18:31 +0100
Subject: [PATCH] =?UTF-8?q?=F0=9F=9B=A0=EF=B8=8F=20=20Add=20'list'=20funct?=
 =?UTF-8?q?ion=20to=20Netlify=20helper=20script?=
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---
 prepare-vms/netlify-dns.sh | 56 ++++++++++++++++++++++++++------------
 1 file changed, 39 insertions(+), 17 deletions(-)

diff --git a/prepare-vms/netlify-dns.sh b/prepare-vms/netlify-dns.sh
index 6d3bdde0..623f18f3 100755
--- a/prepare-vms/netlify-dns.sh
+++ b/prepare-vms/netlify-dns.sh
@@ -6,7 +6,8 @@
   echo "This script is hardcoded to add a record to container.training".
   echo ""
   echo "Syntax:"
-  echo "$0 <name> <ipaddr>"
+  echo "$0 list"
+  echo "$0 add <name> <ipaddr>"
   echo ""
   echo "Example to create a A record for eu.container.training:"
   echo "$0 eu 185.145.250.0"
@@ -14,9 +15,6 @@
   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)
 
@@ -29,19 +27,43 @@ netlify() {
 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?)
+_list() {
+  netlify dns_zones/$ZONE_ID/dns_records |
+    jq -r '.[] | select(.type=="A") | [.hostname, .type, .value] | @tsv'
+}
 
-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
+_add() {
+  NAME=$1.container.training
+  ADDR=$2
 
-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'")'
+  # 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'")'
+}
+
+case "$1" in
+  list)
+    _list
+    ;;
+  add)
+    _add $2 $3
+    ;;
+  *)
+    echo "Unknown command '$1'."
+    exit 1
+    ;;
+esac