Skip to content

feat: Enable ALTS hard bound token in Bigtable w/ direct access #2695

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 4 commits into
base: main
Choose a base branch
from
Open

feat: Enable ALTS hard bound token in Bigtable w/ direct access #2695

Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
c296c92
feat: Enable ALTS hard bound token in Bigtable w/ direct access
rockspore Oct 15, 2025
5d6fe37
add env var to allow disabling bound token
rockspore Oct 17, 2025
2f62b94
format
rockspore Oct 17, 2025
0764d0a
format
rockspore Oct 17, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
11 changes: 11 additions & 0 deletions ...le/src/main/java/com/google/cloud/bigtable/data/v2/stub/EnhancedBigtableStubSettings.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -64,6 +64,7 @@
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.Base64;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Optional;
Expand Down Expand Up @@ -113,6 +114,10 @@ public class EnhancedBigtableStubSettings extends StubSettings<EnhancedBigtableS
private static final boolean DIRECT_PATH_ENABLED =
Boolean.parseBoolean(System.getenv("CBT_ENABLE_DIRECTPATH"));

// If true, disable the bound-token-by-default feature for DirectPath.
private static final boolean DIRECT_PATH_BOUND_TOKEN_DISABLED =
Boolean.parseBoolean(System.getenv("CBT_DISABLE_DIRECTPATH_BOUND_TOKEN"));

private static final boolean SKIP_TRAILERS =
Optional.ofNullable(System.getenv("CBT_SKIP_HEADERS"))
.map(Boolean::parseBoolean)
Expand Down Expand Up @@ -440,6 +445,12 @@ public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProvi
.setAttemptDirectPath(true)
// Allow using non-default service account in DirectPath.
.setAllowNonDefaultServiceAccount(true);
if (!DIRECT_PATH_BOUND_TOKEN_DISABLED) {
// Try to fetch a hard-bound access token for direct access if the runtime
// environment supports it.
grpcTransportProviderBuilder.setAllowHardBoundTokenTypes(
Collections.singletonList(InstantiatingGrpcChannelProvider.HardBoundTokenTypes.ALTS));
}
}
return grpcTransportProviderBuilder
.setChannelPoolSettings(
Expand Down
Loading