feat: Add Buildkit to Container Image Tools

Author: joli-sys

.github/workflows/container.yml

@@ -52,7 +52,7 @@ jobs:
             GCR_CRED_HELRER_VERSION=2.1.26
             MANIFEST_TOOL_VERSION=2.1.9
             SKOPEO_VERSION=1.18.0
-            BUILDKIT_VERSION=0.18.2
+            BUILDKIT_VERSION=0.26.3
           platforms: linux/amd64,linux/arm64
           push: true
           tags: |

Dockerfile

@@ -1,3 +1,5 @@
+ARG BUILDKIT_VERSION
+
 FROM alpine:3.23 as kaniko
 
 RUN apk --update --no-cache add skopeo umoci curl
@@ -45,7 +47,6 @@ RUN tar -xf /workdir/binaries-manifest-tool.tar.gz
 RUN cp /workdir/manifest-tool-linux-$TARGETARCH /workdir/manifest-tool
 RUN chmod +x /workdir/manifest-tool
 
-ARG BUILDKIT_VERSION
 FROM moby/buildkit:v${BUILDKIT_VERSION}-rootless as buildkit
 
 FROM golang:1.24 AS skopeo