From 8a7c2dc2944f63e1bc266c354e67ea099e7748e8 Mon Sep 17 00:00:00 2001
From: George Angel <george-angel@users.noreply.github.com>
Date: Wed, 30 Aug 2023 17:20:53 +1000
Subject: [PATCH] Update default sentinel file location (#26)

* Update default sentinel file location

Uses current Kured location

* Don't run GoReleaser on branches

Where is it going to push the binary?

* Keep /run location
---
 .github/workflows/goreleaser.yaml | 5 +----
 go.mod                            | 2 +-
 update_engine.go                  | 3 ++-
 3 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/goreleaser.yaml b/.github/workflows/goreleaser.yaml
index a2cf52a..854291e 100644
--- a/.github/workflows/goreleaser.yaml
+++ b/.github/workflows/goreleaser.yaml
@@ -4,9 +4,6 @@ on:
   push:
     tags:
       - "v*"
-  pull_request:
-    branches:
-      - "master"
 
 permissions:
   contents: write
@@ -22,7 +19,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v4
         with:
-          go-version: "1.20"
+          go-version: "1.21"
       - name: Install test dependencies
         run: go get .
       - name: Test
diff --git a/go.mod b/go.mod
index f28c2e3..65b849a 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/utilitywarehouse/flatcar-pxe-update-engine
 
-go 1.20
+go 1.21
 
 require (
 	github.com/godbus/dbus/v5 v5.1.0
diff --git a/update_engine.go b/update_engine.go
index f48fbaa..b87c33a 100644
--- a/update_engine.go
+++ b/update_engine.go
@@ -34,6 +34,7 @@ const (
 var (
 	// Flag file location for kured:
 	// https://github.com/flatcar-linux/update_engine/commit/93f6cdddd46e9fba6c336c1db3baa6c89d85979b
+	// https://refspecs.linuxfoundation.org/FHS_3.0/fhs/ch05s13.html
 	kuredReleasePath = "/run/reboot-required"
 )
 
@@ -257,7 +258,7 @@ func touchFile(fileName string) error {
 
 // fuzzDuration adds a random jitter to a given duration. It's adapted from the
 // equivalent method in the original update_engine:
-//  - https://github.com/kinvolk/update_engine/blob/v0.4.10/src/update_engine/utils.cc#L510-L515
+//   - https://github.com/kinvolk/update_engine/blob/v0.4.10/src/update_engine/utils.cc#L510-L515
 func fuzzDuration(r *rand.Rand, value time.Duration, fuzz time.Duration) time.Duration {
 	min := int64(value.Nanoseconds() - (fuzz.Nanoseconds() / 2))
 	max := int64(value.Nanoseconds() + (fuzz.Nanoseconds() / 2))