chore: update kaniko to v1.23.0, update crane to v0.19.1

Dockerfile

@@ -1,4 +1,4 @@
-FROM gcr.io/kaniko-project/executor:v1.21.0-debug
+FROM gcr.io/kaniko-project/executor:v1.23.0-debug
 
 SHELL ["/busybox/sh", "-c"]
 
@@ -6,12 +6,12 @@ SHELL ["/busybox/sh", "-c"]
 RUN set -eux; \
     case "$(arch)" in \
 		'x86_64') \
-			url='https://github.com/google/go-containerregistry/releases/download/v0.19.0/go-containerregistry_Linux_x86_64.tar.gz'; \
+			url='https://github.com/google/go-containerregistry/releases/download/v0.19.1/go-containerregistry_Linux_x86_64.tar.gz'; \
-			sha256='daa629648e1d1d10fc8bde5e6ce4176cbc0cd48a32211b28c3fd806e0fa5f29b'; \
+			sha256='5f2b43c32a901adaaabaa78755d56cea71183954de7547cb4c4bc64b9ac6b2ff'; \
 			;; \
 		'aarch64') \
-			url='https://github.com/google/go-containerregistry/releases/download/v0.19.0/go-containerregistry_Linux_arm64.tar.gz'; \
+			url='https://github.com/google/go-containerregistry/releases/download/v0.19.1/go-containerregistry_Linux_arm64.tar.gz'; \
-			sha256='d439957c1a9d6bc0870be921e25753a7fa67bf2b2691b77ce48a6fc25bc719a0'; \
+			sha256='9118c29cdf2197441c4a934cf517df76c021ba12a70edc14ee9dc4dc08226680'; \
 			;; \
 		*) echo >&2 "error: unsupported architecture '$arch' (likely packaging update needed)"; exit 1 ;; \
     esac; \

README.md

@@ -218,3 +218,16 @@ Example: `thetadev256/test-actions-helloworld2:main`
 Full reference to the built image with registry and tag.
 
 Example: `thetadev256/test-actions-helloworld2:main`
+
+## Dockerfile build arguments
+
+Action-Kaniko automatically sets build arguments to allow for different dockerfile actions
+depending on the OS and architecture the image is build for.
+
+The supported arguments are:
+
+- `TARGETPLATFORM` (example: linux/amd64)
+- `TARGETOS` (example: linux)
+- `TARGETARCH` (example: amd64)
+- `TARGETARCH_ALT` (alternative architecture name, x86_64 for amd64, otherwise the same as TARGETARCH)
+- `TARGETVARIANT` (third docker platform parameter like ARM version)

entrypoint.sh

@@ -96,7 +96,27 @@ if [ -n "$INPUT_PLATFORMS" ]; then
         DESTINATION="--no-push --tarPath /kaniko/build/${platformFn}.tar --destination $IMAGE"
         DIGEST="--image-name-tag-with-digest-file=/kaniko/build/${platformFn}_image-tag-digest"
 
-        runKaniko "${ARGS} --custom-platform=${platform} $DESTINATION $DIGEST"
+        targetos=$(echo "$platform" | cut -d/ -f1)
+        targetarch=$(echo "$platform" | cut -d/ -f2)
+        targetvariant=$(echo "$platform" | cut -d/ -f3)
+
+        case "$targetarch" in
+            'amd64') targetarchAlt="x86_64" ;;
+            'arm64') targetarchAlt="aarch64" ;;
+            'i386') targetarchAlt="i686" ;;
+            '386') targetarchAlt="i686" ;;
+            'ppc64le') targetarchAlt="powerpc64le" ;;
+            'arm')
+                case "$targetvariant" in
+                    'v5') targetarchAlt="armv5te" ;;
+                    'v7') targetarchAlt="armv7" ;;
+                    *) targetarchAlt="arm" ;;
+                esac
+                ;;
+            *) targetarchAlt="$targetarch" ;;
+        esac
+
+        runKaniko "${ARGS} --custom-platform=${platform} --build-arg TARGETPLATFORM='${platform}' --build-arg TARGETOS='${targetos}' --build-arg TARGETARCH='${targetarch}' --build-arg TARGETARCH_ALT='${targetarchAlt}' --build-arg TARGETVARIANT='${targetvariant}' $DESTINATION $DIGEST"
 
         echo "✅ $platform image built: $(head -n 1 "/kaniko/build/${platformFn}_image-tag-digest")"
     done
@@ -113,14 +133,13 @@ if [ -n "$INPUT_PLATFORMS" ]; then
         DIGESTS="$DIGESTS -m $digest"
     done
 
-    TAGS="-t $IMAGE"
+    manifest_cmd="crane index append -t $IMAGE $DIGESTS"
-    if [ -n "$IMAGE_LATEST" ]; then
-        TAGS="$TAGS -t $IMAGE_LATEST"
-    fi
-
-    manifest_cmd="crane index append $TAGS $DIGESTS"
     echo "Building manifest: $manifest_cmd"
     IMAGE_TAG_DIGEST=$(eval "$manifest_cmd")
+
+    if [ -n "$IMAGE_LATEST" ]; then
+        crane tag "$IMAGE" latest
+    fi
 else
     # Build and push image for the default platform
     echo "⚒️ Building image $IMAGE"