From 948594f5d30bd5badf4fe0eca97db37d231845fe Mon Sep 17 00:00:00 2001
From: Pim Kunis <pim@kunis.nl>
Date: Sun, 13 Oct 2024 01:02:15 +0200
Subject: [PATCH] Diff changes between manifests

---
 applyset-deploy.sh | 21 +++++++++++++++++++++
 flake.lock         | 25 +++++++++++++------------
 kubenix.nix        |  1 +
 3 files changed, 35 insertions(+), 12 deletions(-)

diff --git a/applyset-deploy.sh b/applyset-deploy.sh
index 07a09c0..adaea82 100644
--- a/applyset-deploy.sh
+++ b/applyset-deploy.sh
@@ -2,6 +2,27 @@
 
 set -euo pipefail
 
+first_server="${SERVERS%% *}"
+previous_manifest=$(ssh -T "root@$first_server" << EOF
+if [[ -f "$GCROOTDIR/${NAME}.yml" ]]; then
+	cat "$GCROOTDIR/${NAME}.yml"
+fi
+EOF
+)
+
+set +e
+if [ -z "$previous_manifest" ]; then
+	echo No previous manifest found!
+else
+	$DYFF between --set-exit-code <(echo $previous_manifest) $MANIFEST
+	if [ $? -eq 0 ]; then
+		exit 0
+	fi
+fi
+set -e
+
+read -r -p "Continue? " response
+
 echo Uploading closure...
 for server in $SERVERS; do
 	echo Uploading closure to $server...
diff --git a/flake.lock b/flake.lock
index d41e80d..862f6bf 100644
--- a/flake.lock
+++ b/flake.lock
@@ -13,6 +13,7 @@
       "locked": {
         "lastModified": 1715503080,
         "narHash": "sha256-/VnzHTpTq3u0z2Vgu/vKU0SHwOUIu8olHDORWT0IofM=",
+        "ref": "refs/heads/master",
         "rev": "7296f7f5bf5f089a5137036dcbd8058cf3e4a9e5",
         "revCount": 21,
         "type": "git",
@@ -73,11 +74,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1719459426,
-        "narHash": "sha256-4Kn9Pb3lvsik/VYsEAYgXpkcmLhrr0tTE6oIT2PMSPA=",
+        "lastModified": 1726867691,
+        "narHash": "sha256-IK3r16N9pizf53AipOmrcrcyjVsPJwC4PI5hIqEyKwQ=",
         "owner": "kirelagin",
         "repo": "dns.nix",
-        "rev": "e6693931023206f1f3c2bfc57d2c98b5f27f52e6",
+        "rev": "a3196708a56dee76186a9415c187473b94e6cbae",
         "type": "github"
       },
       "original": {
@@ -282,11 +283,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1710146030,
-        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
+        "lastModified": 1726560853,
+        "narHash": "sha256-X6rJYSESBVr3hBoH0WbKE5KvhPU5bloyZ2L4K60/fPQ=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
+        "rev": "c1dfcf08411b08f6b8615f7d8971a2bfa81d5e8a",
         "type": "github"
       },
       "original": {
@@ -451,11 +452,11 @@
         "poetry2nix": "poetry2nix"
       },
       "locked": {
-        "lastModified": 1725758289,
-        "narHash": "sha256-7Och9QDZx5i7yNJYo/l3z46vYB7c6Hg5/XPyxMGX5mM=",
+        "lastModified": 1728695719,
+        "narHash": "sha256-0BJrse7b2jwKQ0oqBKWK7qmH+Km1ENAGzrsIG+yYGbY=",
         "owner": "farcaller",
         "repo": "nixhelm",
-        "rev": "f5e54a73ff511396e0262f82d34933c8745bda05",
+        "rev": "8784378fb80a27fd874e91c3c60106958036ec45",
         "type": "github"
       },
       "original": {
@@ -573,11 +574,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1725634671,
-        "narHash": "sha256-v3rIhsJBOMLR8e/RNWxr828tB+WywYIoajrZKFM+0Gg=",
+        "lastModified": 1728492678,
+        "narHash": "sha256-9UTxR8eukdg+XZeHgxW5hQA9fIKHsKCdOIUycTryeVw=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "574d1eac1c200690e27b8eb4e24887f8df7ac27c",
+        "rev": "5633bcff0c6162b9e4b5f1264264611e950c8ec7",
         "type": "github"
       },
       "original": {
diff --git a/kubenix.nix b/kubenix.nix
index debc874..8c1c7fd 100644
--- a/kubenix.nix
+++ b/kubenix.nix
@@ -71,6 +71,7 @@ inputs@{ self, servers, flutils, nixpkgs, kubenix, ... }: flutils.lib.eachDefaul
                   --set NAME '${name}' \
                   --set NAMESPACE '${namespace}' \
                   --set SERVERS '${k8sServerNames}' \
+                  --set DYFF '${lib.getExe pkgs.dyff}' \
                   --set GCROOTDIR '/nix/var/nix/gcroots/kubernetes-manifests'
               '';
           };