BUILD file not found in directory 'iptables' of external repository about go-iptables

[jhchabran]

@Ishmeet I stumbled across this problem a minute ago, it's because the repository has a build file at its rool, which Bazel wrongly understand as a Bazel buildfile, whereas it's simply a a shell script.

You can fix it by doing the following on your side:

    go_repository(
        name = "com_github_coreos_go_iptables",
        build_file_proto_mode = "disable_global",
        importpath = "github.com/coreos/go-iptables",
        sum = "h1:is9qnZMPYjLd8LYqmm/qlE+wwEgJIkTYdhV3rfZo4jk=",
        version = "v0.6.0",
+        build_file_generation = "on",
    )