Merge pull request #40 from ttsuuubasa/dockerfile-mod

Move BUILDER_IMAGE default from Makefile to Dockerfile

Author: k8s-ci-robot

Dockerfile

@@ -15,7 +15,7 @@
 ARG BUILDER_IMAGE
 ARG ARCH
 
-FROM ${BUILDER_IMAGE} AS builder
+FROM ${BUILDER_IMAGE:-docker.io/library/golang:1.24.2} AS builder
 WORKDIR /workspace
 
 # Copy the Go Modules manifests

Makefile

@@ -26,7 +26,7 @@ CONTROLLER_GEN = go run ${PROJECT_DIR}/vendor/sigs.k8s.io/controller-tools/cmd/c
 ARCH ?= $(shell go env GOARCH)
 
 CONTAINER_RUNTIME ?= docker
-BUILDER_IMAGE ?= docker.io/library/golang:1.24.2
+BUILDER_IMAGE ?=
 IMG ?= karpenter-clusterapi-controller
 
 all: help