Add configuration rule for remote execution.

PiperOrigin-RevId: 221105195
diff --git a/WORKSPACE b/WORKSPACE
index 1796182..0c7bc08 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -14,6 +14,33 @@
 
 closure_repositories()
 
+http_archive(
+    name = "base_images_docker",
+    sha256 = "e2b1b7254270bb7605e814a9dbf6d1e4ae04a11136ff1714fbfdabe3f87f7cf9",
+    strip_prefix = "base-images-docker-12801524f867e657fbb5d1a74f31618aff181ac6",
+    urls = ["https://github.com/GoogleCloudPlatform/base-images-docker/archive/12801524f867e657fbb5d1a74f31618aff181ac6.tar.gz"],
+)
+
+http_archive(
+    name = "bazel_toolchains",
+    sha256 = "15b5858b1b5541ec44df31b94c3b8672815b31d71215a98398761ea9f4c4eedb",
+    strip_prefix = "bazel-toolchains-6200b238c9c2d137c0d9a7262c80cc71d98e692b",
+    urls = [
+        "https://github.com/bazelbuild/bazel-toolchains/archive/6200b238c9c2d137c0d9a7262c80cc71d98e692b.tar.gz",
+    ],
+)
+
+http_archive(
+    name = "io_bazel_rules_docker",
+    sha256 = "29d109605e0d6f9c892584f07275b8c9260803bf0c6fcb7de2623b2bedc910bd",
+    strip_prefix = "rules_docker-0.5.1",
+    urls = ["https://github.com/bazelbuild/rules_docker/archive/v0.5.1.tar.gz"],
+)
+
+load("//third_party/toolchains/preconfig/generate:workspace.bzl", "remote_config_workspace")
+
+remote_config_workspace()
+
 # We must check the bazel version before trying to parse any other BUILD
 # files, in case the parsing of those build files depends on the bazel
 # version we require here.
@@ -79,3 +106,4 @@
         "http://download.tensorflow.org/models/speech_commands_v0.01.zip",
     ],
 )
+