remote: Add support for Google Cloud Storage.

Add support for Google Cloud Storage (GCS) as a HTTP caching backend.
This commit mainly adds the infrastructure necessary to authenticate
to GCS.

Using GCS as a caching backend works as follows:
  1) Create a new GCS bucket.
  2) Create a service account that can read and write to the GCS bucket
     and generate a JSON credentials file for it.
  3) Invoke Bazel as follows:
    bazel build
      --remote_rest_cache=https://storage.googleapis.com/<bucket>;
      --auth_enabled
      --auth_scope=https://www.googleapis.com/auth/devstorage.read_write
      --auth_credentials=</path/to/creds.json>

I'll add simplification's and docs in a subsequent commit.

Change-Id: Ie827d7946a2193b97ea7d9aa72eb15f09de2164d
PiperOrigin-RevId: 179406380

1 files changed, 3 insertions, 3 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/buildeventservice/BazelBuildEventServiceModule.java b/src/main/java/com/google/devtools/build/lib/buildeventservice/BazelBuildEventServiceModule.java
index 4f205e1189..9fe84a723f 100644
--- a/src/main/java/com/google/devtools/build/lib/buildeventservice/BazelBuildEventServiceModule.java
+++ b/src/main/java/com/google/devtools/build/lib/buildeventservice/BazelBuildEventServiceModule.java
@@ -16,7 +16,7 @@ package com.google.devtools.build.lib.buildeventservice;
 
 import com.google.common.collect.ImmutableSet;
 import com.google.devtools.build.lib.authandtls.AuthAndTLSOptions;
-import com.google.devtools.build.lib.authandtls.GrpcUtils;
+import com.google.devtools.build.lib.authandtls.GoogleAuthUtils;
 import com.google.devtools.build.lib.buildeventservice.client.BuildEventServiceClient;
 import com.google.devtools.build.lib.buildeventservice.client.BuildEventServiceGrpcClient;
 import java.io.IOException;
@@ -37,8 +37,8 @@ public class BazelBuildEventServiceModule
   protected BuildEventServiceClient createBesClient(BuildEventServiceOptions besOptions,
       AuthAndTLSOptions authAndTLSOptions) throws IOException {
     return new BuildEventServiceGrpcClient(
-        GrpcUtils.newChannel(besOptions.besBackend, authAndTLSOptions),
-        GrpcUtils.newCallCredentials(authAndTLSOptions));
+        GoogleAuthUtils.newChannel(besOptions.besBackend, authAndTLSOptions),
+        GoogleAuthUtils.newCallCredentials(authAndTLSOptions));
   }
 
   @Override