Merge pull request GoogleContainerTools#129 from xingao267/cacerts

Remove hardcoded @package_bundle repo in cacerts.bzl.

base/BUILD

@@ -15,14 +15,14 @@ passwd_file(
     username = "root",
 )
 
+load("@package_bundle//file:packages.bzl", "packages")
 load("//cacerts:cacerts.bzl", "cacerts")
 
 cacerts(
     name = "cacerts",
+    deb = packages["ca-certificates"],
 )
 
-load("@package_bundle//file:packages.bzl", "packages")
-
 # Create /tmp, too many things assume it exists.
 # tmp.tar has a /tmp with the correct permissions 01777
 # A tar is needed because at the moment there is no way to create a diretory with specific permissions

cacerts/cacerts.bzl

@@ -6,14 +6,12 @@ def _impl(ctx):
             inputs = [ctx.executable._extract, ctx.file.deb],
             outputs = [ctx.outputs.out])
 
-load("@package_bundle//file:packages.bzl", "packages")
-
 cacerts = rule(
     attrs = {
         "deb": attr.label(
-            default = Label(packages["ca-certificates"]),
             allow_files = [".deb"],
             single_file = True,
+            mandatory = True,
         ),
         # Implicit dependencies.
         "_extract": attr.label(