From 9bb766cf17d19bab4ebf21e1022a583949178a9f Mon Sep 17 00:00:00 2001
From: Jose Diaz-Gonzalez <email@josediazgonzalez.com>
Date: Sat, 10 Jan 2026 02:33:59 -0500
Subject: [PATCH] fix: reference app-specific config.json for retrieving
 registry auths

---
 plugins/registry/functions.go     | 8 ++++++++
 plugins/scheduler-k3s/go.mod      | 3 +++
 plugins/scheduler-k3s/triggers.go | 3 ++-
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/plugins/registry/functions.go b/plugins/registry/functions.go
index 4c421d75d..8ef4d442f 100644
--- a/plugins/registry/functions.go
+++ b/plugins/registry/functions.go
@@ -25,6 +25,14 @@ func GetAppRegistryConfigPath(appName string) string {
 	return filepath.Join(GetAppRegistryConfigDir(appName), "config.json")
 }
 
+func GetComputedAppRegistryConfigDir(appName string) string {
+	if HasAppRegistryAuth(appName) {
+		return GetAppRegistryConfigDir(appName)
+	}
+
+	return filepath.Join(os.Getenv("DOKKU_ROOT"), ".docker")
+}
+
 // HasAppRegistryAuth checks if an app has registry credentials configured
 func HasAppRegistryAuth(appName string) bool {
 	configPath := GetAppRegistryConfigPath(appName)
diff --git a/plugins/scheduler-k3s/go.mod b/plugins/scheduler-k3s/go.mod
index 1ca88658d..a0f5f5870 100644
--- a/plugins/scheduler-k3s/go.mod
+++ b/plugins/scheduler-k3s/go.mod
@@ -12,6 +12,7 @@ require (
 	github.com/dokku/dokku/plugins/docker-options v0.0.0-20250618161309-8d0c35f1333c
 	github.com/dokku/dokku/plugins/logs v0.0.0-20250618161309-8d0c35f1333c
 	github.com/dokku/dokku/plugins/nginx-vhosts v0.0.0-20250618161309-8d0c35f1333c
+	github.com/dokku/dokku/plugins/registry v0.0.0-20250618161309-8d0c35f1333c
 	github.com/fatih/color v1.18.0
 	github.com/fluxcd/pkg/kustomize v1.24.0
 	github.com/go-openapi/jsonpointer v0.22.4
@@ -190,6 +191,8 @@ replace github.com/dokku/dokku/plugins/logs => ../logs
 
 replace github.com/dokku/dokku/plugins/nginx-vhosts => ../nginx-vhosts
 
+replace github.com/dokku/dokku/plugins/registry => ../registry
+
 replace github.com/joho/godotenv => github.com/joho/godotenv v1.2.0
 
 replace github.com/imdario/mergo => github.com/imdario/mergo v0.3.16
diff --git a/plugins/scheduler-k3s/triggers.go b/plugins/scheduler-k3s/triggers.go
index da6d531a8..9053798bc 100644
--- a/plugins/scheduler-k3s/triggers.go
+++ b/plugins/scheduler-k3s/triggers.go
@@ -23,6 +23,7 @@ import (
 	"github.com/dokku/dokku/plugins/config"
 	"github.com/dokku/dokku/plugins/cron"
 	nginxvhosts "github.com/dokku/dokku/plugins/nginx-vhosts"
+	"github.com/dokku/dokku/plugins/registry"
 	"github.com/fatih/color"
 	"github.com/gosimple/slug"
 	"github.com/kballard/go-shellquote"
@@ -405,7 +406,7 @@ func TriggerSchedulerDeploy(scheduler string, appName string, imageTag string) e
 	pullSecretBase64 := base64.StdEncoding.EncodeToString([]byte(""))
 	imagePullSecrets := getComputedImagePullSecrets(appName)
 	if imagePullSecrets == "" {
-		dockerConfigPath := filepath.Join(os.Getenv("DOKKU_ROOT"), ".docker/config.json")
+		dockerConfigPath := filepath.Join(registry.GetComputedAppRegistryConfigDir(appName), "config.json")
 		if fi, err := os.Stat(dockerConfigPath); err == nil && !fi.IsDir() {
 			b, err := os.ReadFile(dockerConfigPath)
 			if err != nil {