From 1a8f4e034d3a96cb4e0f0535ada211d51d812bea Mon Sep 17 00:00:00 2001
From: Christian Sunesson <52162652+chsukivra@users.noreply.github.com>
Date: Thu, 23 May 2024 21:38:19 +0200
Subject: [PATCH 1/2] fix: Write os-var replaced .src file to temp file, and
 rename

The replace_os_vars function is called for any command, not only those that boot the release. If you invoke <release> status in a readiness check, that will write the file again.

This might lead to race conditions, where the release starts up, but the health check will re-render the sys.config and write it halfway while the boot gets around to read it.
---
 priv/templates/extended_bin | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/priv/templates/extended_bin b/priv/templates/extended_bin
index 39652373b..e5896b69a 100644
--- a/priv/templates/extended_bin
+++ b/priv/templates/extended_bin
@@ -445,6 +445,7 @@ make_out_file_path() {
 
 # Replace environment variables
 replace_os_vars() {
+    TEMP_OUT=$(mktemp "$2".XXXXX)
     awk '{
         while(match($0,"[$]{[^}]*}")) {
             var=substr($0,RSTART+2,RLENGTH -3)
@@ -460,7 +461,8 @@ replace_os_vars() {
                 gsub("[$]{"var"}",e)
             }
         }
-    }1' < "$1" > "$2"
+    }1' < "$1" >> "$TEMP_OUT"
+    mv "$TEMP_OUT" "$2"
 }
 
 add_path() {

From be1fd379143aaa325ed58e4c2a9b1a812e3c18f7 Mon Sep 17 00:00:00 2001
From: Christian Sunesson <52162652+chsukivra@users.noreply.github.com>
Date: Thu, 23 May 2024 21:54:48 +0200
Subject: [PATCH 2/2] fix: use pattern with 6 X, busybox mktemp (alpine)
 requires it

---
 priv/templates/extended_bin | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/priv/templates/extended_bin b/priv/templates/extended_bin
index e5896b69a..0f52eed70 100644
--- a/priv/templates/extended_bin
+++ b/priv/templates/extended_bin
@@ -445,7 +445,7 @@ make_out_file_path() {
 
 # Replace environment variables
 replace_os_vars() {
-    TEMP_OUT=$(mktemp "$2".XXXXX)
+    TEMP_OUT=$(mktemp "$2".XXXXXX)
     awk '{
         while(match($0,"[$]{[^}]*}")) {
             var=substr($0,RSTART+2,RLENGTH -3)