Expand glob, stop cd-ing in bash

oci/private/tarball.sh.tpl

@@ -6,7 +6,7 @@ readonly STAGING_DIR=$(mktemp -d)
 readonly YQ="{{yq}}"
 readonly IMAGE_DIR="{{image_dir}}"
 readonly BLOBS_DIR="${STAGING_DIR}/blobs"
-readonly TARBALL_PATH="$(pwd)/{{tarball_path}}"
+readonly TARBALL_PATH="{{tarball_path}}"
 readonly TAGS_FILE="{{tags}}"
 readonly INDEX_FILE="${IMAGE_DIR}/index.json"
 
@@ -113,8 +113,7 @@ if [[ "${FORMAT}" == "oci" ]]; then
   # }
   repo_tags="${REPOTAGS[@]}" "${YQ}" -o json eval "(.manifests = ${MANIFEST_COPIES}) *d {\"manifests\": (env(repo_tags) | split \" \" | map {\"annotations\": {\"org.opencontainers.image.ref.name\": .}})}" "${INDEX_FILE}" > "${STAGING_DIR}/index.json"
 
-  cd "${STAGING_DIR}"
-  tar -cf "${TARBALL_PATH}" *
+  tar -C "${STAGING_DIR}" -cf "${TARBALL_PATH}" index.json blobs oci-layout
   exit 0
 fi