fix: create separate manifests for each registry

The previous approach tried to create a single manifest referencing digests
from multiple registries, which doesn't work. Each registry needs its own
manifest list created from its own digests.

Changes:
- Loop through each registry (docker.io and ghcr.io) separately
- Create manifest list for each registry with registry-specific digests
- Apply appropriate tags to each registry's manifest

Author: philprime

.github/workflows/build-cli-docker.yml

@@ -161,21 +161,28 @@ jobs:
           image_tags=$(printf '%s' "$DOCKER_METADATA_OUTPUT_JSON" | jq -cr '.tags | map("-t " + .) | join(" ")')
           echo "Creating manifest list with tags: $image_tags"
 
-          # Extract unique image names (without tags) to build digest references
-          image_names=$(printf '%s' "$DOCKER_METADATA_OUTPUT_JSON" | jq -cr '.tags | map(split(":")[0]) | unique | join(" ")')
-          echo "Image names: $image_names"
+          # We need to create separate manifests for each registry
+          # because the digests are registry-specific
 
-          # Build digest references for all images
-          digest_refs=""
-          for image_name in $image_names; do
+          # For each registry, create manifest with its digests
+          for registry in "docker.io/${{ github.repository }}" "ghcr.io/${{ github.repository }}"; do
+            echo "Processing registry: $registry"
+
+            # Get tags for this registry
+            registry_tags=$(printf '%s' "$DOCKER_METADATA_OUTPUT_JSON" | jq -cr --arg registry "$registry" '.tags | map(select(startswith($registry))) | map("-t " + .) | join(" ")')
+
+            # Build digest references for this registry
+            digest_refs=""
             for digest_file in *; do
-              digest_refs="$digest_refs ${image_name}@sha256:${digest_file}"
+              digest_refs="$digest_refs ${registry}@sha256:${digest_file}"
             done
-          done
-          echo "Digest references: $digest_refs"
 
-          echo "Creating manifest using buildx..."
-          docker buildx imagetools create $image_tags $digest_refs
+            echo "Tags for $registry: $registry_tags"
+            echo "Digest refs: $digest_refs"
+
+            # Create and push manifest for this registry
+            docker buildx imagetools create $registry_tags $digest_refs
+          done
 
           # Inspect the first tag for verification
           first_tag=$(printf '%s' "$DOCKER_METADATA_OUTPUT_JSON" | jq -cr '.tags[0]')