Skip to content

xds/clusterresolver: implement gRFC A61 changes for LOGICAL_DNS clusters - #8733

Merged
Pranjali-2501 merged 12 commits into
grpc:masterfrom
Pranjali-2501:a61
Feb 4, 2026
Merged

xds/clusterresolver: implement gRFC A61 changes for LOGICAL_DNS clusters#8733
Pranjali-2501 merged 12 commits into
grpc:masterfrom
Pranjali-2501:a61

Conversation

@Pranjali-2501

@Pranjali-2501 Pranjali-2501 commented Dec 1, 2025

Copy link
Copy Markdown
Contributor

Fixes : #8153

This PR implements the "Changes to Logical DNS Clusters" section of gRFC A61 (IPv4/IPv6 Dual-stack Backends).

Currently, LOGICAL_DNS clusters in the xDS cluster resolver have their Load Balancing policy hard-coded to pick_first. This ensures the semantics of connecting to only one address at a time.

This PR updates the xds_cluster_resolver logic. The buildClusterImplConfigForDNS function removes the hard-coded pick_first policy restriction for LOGICAL_DNS clusters, allowing them to use the configured LB policy.
Also, in the DNS update handler, all resolved addresses are now grouped into a single resolver.Endpoint. This ensures that regardless of the configured parent LB policy, the child policy sees a single "backend" endpoint containing all addresses.

RELEASE NOTES:

  • xds: LOGICAL_DNS clusters now honor the LB policy configured in the cluster resource, rather than defaulting to a hardcoded pick_first policy.

@Pranjali-2501 Pranjali-2501 added this to the 1.78 Release milestone Dec 1, 2025
@Pranjali-2501 Pranjali-2501 added Type: Feature New features or improvements in behavior Area: xDS Includes everything xDS related, including LB policies used with xDS. labels Dec 1, 2025
@codecov

codecov Bot commented Dec 1, 2025

Copy link
Copy Markdown

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.35%. Comparing base (830c909) to head (41ff069).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files
@@            Coverage Diff             @@
##           master    #8733      +/-   ##
==========================================
- Coverage   83.42%   83.35%   -0.07%     
==========================================
  Files         414      414              
  Lines       32751    32754       +3     
==========================================
- Hits        27322    27302      -20     
- Misses       4040     4057      +17     
- Partials     1389     1395       +6     
Files with missing lines Coverage Δ
...rnal/xds/balancer/clusterresolver/configbuilder.go 92.59% <100.00%> (+0.16%) ⬆️

... and 17 files with indirect coverage changes

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

Comment thread internal/xds/balancer/clusterresolver/resource_resolver_dns.go Outdated
Comment thread internal/xds/balancer/clusterresolver/resource_resolver_dns.go Outdated
Comment thread internal/xds/balancer/clusterresolver/configbuilder.go Outdated
@easwars

easwars commented Dec 1, 2025

Copy link
Copy Markdown
Contributor

This change probably needs a release note.

@easwars easwars assigned Pranjali-2501 and unassigned easwars and arjan-bal Dec 1, 2025
@Pranjali-2501
Pranjali-2501 requested a review from easwars December 3, 2025 17:59
Comment thread internal/xds/balancer/clusterresolver/configbuilder.go Outdated
Comment thread internal/xds/balancer/clusterresolver/configbuilder.go Outdated
Comment thread internal/xds/balancer/clusterresolver/configbuilder_test.go Outdated
Comment thread internal/xds/balancer/clusterresolver/e2e_test/dns_impl_test.go Outdated
Comment thread internal/xds/balancer/cdsbalancer/e2e_test/dns_impl_test.go
Comment thread internal/xds/balancer/clusterresolver/configbuilder.go Outdated
Comment thread internal/xds/balancer/clusterresolver/configbuilder.go Outdated
Comment thread internal/xds/balancer/clusterresolver/configbuilder.go Outdated
Comment thread internal/xds/balancer/clusterresolver/configbuilder_test.go Outdated
@easwars easwars assigned Pranjali-2501 and unassigned easwars Jan 29, 2026
@Pranjali-2501
Pranjali-2501 merged commit 55bfbbb into grpc:master Feb 4, 2026
14 checks passed
mbissa pushed a commit to mbissa/grpc-go that referenced this pull request Feb 10, 2026
…ers (grpc#8733)

Fixes : grpc#8153 

This PR implements the "Changes to Logical DNS Clusters" section of
[gRFC A61 (IPv4/IPv6 Dual-stack
Backends)](https://github.com/grpc/proposal/blob/master/A61-IPv4-IPv6-dualstack-backends.md#changes-to-logical-dns-clusters).

Currently, `LOGICAL_DNS` clusters in the xDS cluster resolver have their
Load Balancing policy hard-coded to `pick_first`. This ensures the
semantics of connecting to only one address at a time.

This PR updates the `xds_cluster_resolver` logic. The
`buildClusterImplConfigForDNS` function removes the hard-coded
`pick_first` policy restriction for `LOGICAL_DNS` clusters, allowing
them to use the configured LB policy.
Also, in the DNS update handler, all resolved addresses are now grouped
into a single `resolver.Endpoint`. This ensures that regardless of the
configured parent LB policy, the child policy sees a single "backend"
endpoint containing all addresses.

RELEASE NOTES: 
* xds: `LOGICAL_DNS` clusters now honor the LB policy configured in the
cluster resource, rather than defaulting to a hardcoded `pick_first`
policy.
mbissa pushed a commit to mbissa/grpc-go that referenced this pull request Feb 16, 2026
…ers (grpc#8733)

Fixes : grpc#8153 

This PR implements the "Changes to Logical DNS Clusters" section of
[gRFC A61 (IPv4/IPv6 Dual-stack
Backends)](https://github.com/grpc/proposal/blob/master/A61-IPv4-IPv6-dualstack-backends.md#changes-to-logical-dns-clusters).

Currently, `LOGICAL_DNS` clusters in the xDS cluster resolver have their
Load Balancing policy hard-coded to `pick_first`. This ensures the
semantics of connecting to only one address at a time.

This PR updates the `xds_cluster_resolver` logic. The
`buildClusterImplConfigForDNS` function removes the hard-coded
`pick_first` policy restriction for `LOGICAL_DNS` clusters, allowing
them to use the configured LB policy.
Also, in the DNS update handler, all resolved addresses are now grouped
into a single `resolver.Endpoint`. This ensures that regardless of the
configured parent LB policy, the child policy sees a single "backend"
endpoint containing all addresses.

RELEASE NOTES: 
* xds: `LOGICAL_DNS` clusters now honor the LB policy configured in the
cluster resource, rather than defaulting to a hardcoded `pick_first`
policy.
This was referenced Apr 23, 2026
nschloe pushed a commit to live-clones/forgejo that referenced this pull request Jul 23, 2026
…/forgejo) (#13580)

This PR contains the following updates:

| Package | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
| [google.golang.org/grpc](https://github.com/grpc/grpc-go) | `v1.79.3` → `v1.82.1` | ![age](https://developer.mend.io/api/mc/badges/age/go/google.golang.org%2fgrpc/v1.82.1?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/go/google.golang.org%2fgrpc/v1.79.3/v1.82.1?slim=true) |

---

### gRPC-Go: xDS RBAC and HTTP/2 Vulnerabilities
[GHSA-hrxh-6v49-42gf](GHSA-hrxh-6v49-42gf)

<details>
<summary>More information</summary>

#### Details
Multiple security vulnerabilities have been identified and addressed in grpc-go affecting the xDS RBAC authorization engine (internal/xds/rbac) and the HTTP/2 transport server implementation (internal/transport). These vulnerabilities could result in:

- Authorization Bypass (Fail-Open) when translating xDS RBAC policies containing `Metadata` or `RequestedServerName` fields.
- Denial of Service (High CPU Consumption) due to an HTTP/2 Rapid Reset mitigation bypass during client-initiated stream resets.
- Denial of Service (Server Panic) when parsing crafted xDS RBAC policies containing `NOT` rules around unsupported fields.

##### Impact
_What kind of vulnerability is it? Who is impacted?_

##### xDS RBAC Authorization Bypass via `Metadata` & `RequestedServerName` matchers

- Affected Component: xDS RBAC
- Impact: When building policy matchers for gRPC RBAC from xDS configurations, unsupported `permission` and `principal` rules (specifically `Metadata` and `RequestedServerName`) were silently ignored and treated as no-ops.
  - If an authorization policy relied purely on these matchers for access control, treating those rules as no-ops effectively removed the restrictions.
- If these unsupported rules were nested inside logical `NOT` rules (`Permission_NotRule` / `Principal_NotId`) or multi-condition `OR/AND` rules, silently dropping them changed the boolean logic flow of the authorization engine.

As a result, policy evaluation decisions could fail open, allowing unauthorized clients to access protected gRPC services or resources.

##### HTTP/2 Rapid Reset Mitigation Bypass / Denial of Service via Stream Aborts

- Affected Component: HTTP/2 transport
- Impact: Earlier mitigations in grpc-go for HTTP/2 Rapid Reset only applied threshold checks to items that directly resulted in control frames being written back to the wire, such as `SETTINGS` ACKs or server-initiated `RST_STREAM`s.

When a client initiated a rapid flood of stream creation (`HEADERS`) immediately followed by stream termination `RST_STREAM`, items queued up in the control buffer without counting against the transport response frame threshold. An attacker can repeatedly trigger this flood sequence to bypass reader blocking, resulting in high CPU usage, and Denial of Service (DoS).

##### Denial of Service (Panic) in xDS RBAC Engine via Unsupported Fields inside NOT Rules

- Affected Component: xDS RBAC
- Impact: The xDS RBAC policy translators recursively generate matchers for nested rules. When a `NOT` rule wrapped an unsupported or unhandled field (such as `SourcedMetadata`), the recursive step returned an empty matcher. This could result in a runtime panic when the RBAC engine attempts to authorize an incoming request.

An attacker or misconfigured/malicious xDS management server delivering an LDS/RDS update containing a `NOT` rule around an unhandled field causes the gRPC server process to crash immediately (CWE-248 / Denial of Service).

##### Patches
_Has the problem been patched? What versions should users upgrade to?_

All three issues have been fixed in `master` and will be released in 1.82.1 shortly.

##### Workarounds
_Is there a way for users to fix or remediate the vulnerability without upgrading?_

If upgrading grpc-go immediately is not possible, apply the following workarounds based on your deployment architecture:

* For xDS RBAC Vulnerabilities & Panics: Ensure that upstream xDS management servers do not push RBAC policies containing `Metadata`, `RequestedServerName`, or `NOT` rules wrapping unsupported fields (such as `SourcedMetadata`) to grpc-go servers.
* For HTTP/2 Rapid Reset DOS: Configure upstream reverse proxies or load balancers (such as Envoy) with strict HTTP/2 `max_concurrent_streams` limits and active rate limiting on `RST_STREAM` frequency per connection.

##### Severity

  | Vulnerability | Qualitative Severity | Approximate CVSS v3.1 Score | Primary Impact |
  | :--- | :--- | :--- | :--- |
  | **xDS RBAC Authorization Bypass** | **High** | `8.2` | Unauthorized Access / Fail-Open |
  | **HTTP/2 Rapid Reset DOS Bypass** | **High** | `7.5` | High CPU Consumption / Denial of Service |
  | **xDS RBAC Engine Server Panic** | **Medium** | `5.9` | Process Crash / Denial of Service |

#### Severity
- CVSS Score: 8.8 / 10 (High)
- Vector String: `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N`

#### References
- [https://github.com/grpc/grpc-go/security/advisories/GHSA-hrxh-6v49-42gf](https://github.com/grpc/grpc-go/security/advisories/GHSA-hrxh-6v49-42gf)
- [https://github.com/grpc/grpc-go/pull/9236](https://github.com/grpc/grpc-go/pull/9236)
- [https://github.com/grpc/grpc-go/commit/4ea465d4ab98013f72a142fe0fc89c19770b2935](https://github.com/grpc/grpc-go/commit/4ea465d4ab98013f72a142fe0fc89c19770b2935)
- [https://github.com/grpc/grpc-go](https://github.com/grpc/grpc-go)
- [https://github.com/grpc/grpc-go/releases/tag/v1.82.1](https://github.com/grpc/grpc-go/releases/tag/v1.82.1)

This data is provided by [OSV](https://osv.dev/vulnerability/GHSA-hrxh-6v49-42gf) and the [GitHub Advisory Database](https://github.com/github/advisory-database) ([CC-BY 4.0](https://github.com/github/advisory-database/blob/main/LICENSE.md)).
</details>

---

### Release Notes

<details>
<summary>grpc/grpc-go (google.golang.org/grpc)</summary>

### [`v1.82.1`](https://github.com/grpc/grpc-go/releases/tag/v1.82.1): Release 1.82.1

[Compare Source](grpc/grpc-go@v1.82.0...v1.82.1)

### Security

- server: Stop reading from the connection when flooded by HTTP/2 frames.  The default value for this limit is 100 frames, excluding DATA and HEADERS, and may be changed by setting environment variable `GRPC_GO_EXPERIMENTAL_CONTROL_BUFFER_THROTTLE_LIMIT`.
- xds/rbac: Support `Metadata` and `RequestedServerName` permissions matcher fields.  If present in a DENY rule, previously these would be ignored and fail-open.
- xds/rbac: Fix panic when parsing unsupported fields in `NotRule`/`NotId` permissions.
- xds/rbac: Support the deprecated `source_ip` principal identifier by treating it as equivalent to `direct_remote_ip`.

### [`v1.82.0`](https://github.com/grpc/grpc-go/releases/tag/v1.82.0): Release 1.82.0

[Compare Source](grpc/grpc-go@v1.81.1...v1.82.0)

### Behavior Changes

- server: Remove support for `GRPC_GO_EXPERIMENTAL_DISABLE_STRICT_PATH_CHECKING` environment varibale. Strict incoming RPC path validation (which has been the default since `v1.79.3`) can no longer be disabled. ([#&#8203;9112](grpc/grpc-go#9112))
- transport: Add environment variable to change the default max header list size from `16MB` to `8KB`. This may be enabled by setting `GRPC_GO_EXPERIMENTAL_ENABLE_8KB_DEFAULT_HEADER_LIST_SIZE=true`. This will be enabled by default in a subsequent release. ([#&#8203;9019](grpc/grpc-go#9019))
- balancer: Load Balancing policy registry is now case-sensitive.  Set `GRPC_GO_EXPERIMENTAL_CASE_SENSITIVE_BALANCER_REGISTRIES=false` (and file an issue) to revert to case-insensitive behavior. ([#&#8203;9017](grpc/grpc-go#9017))

### New Features

- experimental/stats: Expose a new API, `NewContextWithLabelCallback`, to register a callback that is invoked when telemetry labels are added. ([#&#8203;8877](grpc/grpc-go#8877))
  - Special Thanks: [@&#8203;seth-epps](https://github.com/seth-epps)
- client: Return a portion of the response body in the error message, when the client receives an unexpected non-gRPC HTTP response, to make debugging easier. ([#&#8203;8929](grpc/grpc-go#8929))
  - Special Thanks: [@&#8203;chengxilo](https://github.com/chengxilo)
- server: Add environment variable `GRPC_GO_SERVER_GOROUTINE_LABELS` that controls setting `runtime/pprof.Labels` on goroutines spawned by the server. Set `GRPC_GO_SERVER_GOROUTINE_LABELS=grpc.method=true` to add the `grpc.method` label on goroutines spawned to handle incoming requests. ([#&#8203;9082](grpc/grpc-go#9082))
  - Special Thanks: [@&#8203;dfinkel](https://github.com/dfinkel)

### Bug Fixes

- xds/server: Fix a memory leak of HTTP filter instances occurring when route configurations are updated in-place during a Route Discovery Service (RDS) update. ([#&#8203;9138](grpc/grpc-go#9138))
- grpc: In the deprecated `gzip` Compressor (used via the deprecated `WithCompressor` dial option), enforce the `MaxRecvMsgSize` limit on the decompressed message buffer, preventing excessive memory allocation from highly compressed payloads. ([#&#8203;9114](grpc/grpc-go#9114))
  - Special Thanks: [@&#8203;evilgensec](https://github.com/evilgensec)
- stats/opentelemetry: Record retry attempts, `grpc.previous-rpc-attempts`, at the call level and not the attempt level. ([#&#8203;8923](grpc/grpc-go#8923))
- encoding: Ensure `Close()` is always called on readers returned from `Compressor.Decompress` if possible. ([#&#8203;9135](grpc/grpc-go#9135))
- channelz: Fix the `LastMessageSentTimestamp` and `LastMessageReceivedTimestamp` fields in `SocketMetrics` to ensure they contain correct timestamp values. ([#&#8203;9109](grpc/grpc-go#9109))

### [`v1.81.1`](https://github.com/grpc/grpc-go/releases/tag/v1.81.1): Release 1.81.1

[Compare Source](grpc/grpc-go@v1.81.0...v1.81.1)

### Security

- xds/rbac: Fix a potential authorization bypass caused by incorrectly falling through URI/DNS SANs to Subject Distinguished Name (DN) when matching the authenticated principal name. With this fix, only the first non-empty identity source will be used, as per [gRFC A41](https://github.com/grpc/proposal/blob/master/A41-xds-rbac.md). ([#&#8203;9111](grpc/grpc-go#9111))
  - Special Thanks: [@&#8203;al4an444](https://github.com/al4an444)

### Bug Fixes

- otel: Segregate client and server RPC information used for metrics and traces, to avoid one overwriting the other. ([#&#8203;9081](grpc/grpc-go#9081))

### [`v1.81.0`](https://github.com/grpc/grpc-go/releases/tag/v1.81.0): Release 1.81.0

[Compare Source](grpc/grpc-go@v1.80.0...v1.81.0)

### Behavior Changes

- balancer/rls: Switch gauge metrics to asynchronous emission (once per collection cycle) to reduce telemetry noise and align with other gRPC language implementations. ([#&#8203;8808](grpc/grpc-go#8808))

### Dependencies

- Minimum supported Go version is now 1.25. ([#&#8203;8969](grpc/grpc-go#8969))

### Bug Fixes

- xds: Use the leaf cluster's security config for the TLS handshake instead of the aggregate cluster's config. ([#&#8203;8956](grpc/grpc-go#8956))
- transport: Send a `RST_STREAM` when receiving an `END_STREAM` when the stream is not already half-closed. ([#&#8203;8832](grpc/grpc-go#8832))
- xds: Fix ADS resource name validation to prevent a panic. ([#&#8203;8970](grpc/grpc-go#8970))

### New Features

- grpc/stats: Add support for custom labels in per-call metrics ([gRFC A108](https://github.com/grpc/proposal/blob/master/A108-otel-custom-per-call-label.md)). ([#&#8203;9008](grpc/grpc-go#9008))
- xds: Add support for Server Name Indication (SNI) and SAN validation ([gRFC A101](https://github.com/grpc/proposal/blob/master/A101-SNI-setting-and-SNI-SAN-validation.md)). Disabled by default. To enable, set `GRPC_EXPERIMENTAL_XDS_SNI=true` environment variable. ([#&#8203;9016](grpc/grpc-go#9016))
- xds: Add support to control which fields get propagated from ORCA backend metric reports to LRS load reports ([gRFC A85](https://github.com/grpc/proposal/blob/master/A85-lrs-custom-metrics-changes.md)). Disabled by default. To enable, set `GRPC_EXPERIMENTAL_XDS_ORCA_LRS_PROPAGATION=true`. ([#&#8203;9005](grpc/grpc-go#9005))
- xds: Add metrics to track xDS client connectivity and cached resource state ([gRFC A78](https://github.com/grpc/proposal/blob/master/A78-grpc-metrics-wrr-pf-xds.md)). ([#&#8203;8807](grpc/grpc-go#8807))
- stats/otel: Enhance `grpc.subchannel.disconnections` metric by adding disconnection reason to the `grpc.disconnect_error` label ([gRFC A94](https://github.com/grpc/proposal/blob/master/A94-subchannel-otel-metrics.md)). This provides granular insights into why subchannels are closing. ([#&#8203;8973](grpc/grpc-go#8973))
- mem: Add `mem.Buffer.Slice()` API to slice the buffer like a slice. ([#&#8203;8977](grpc/grpc-go#8977))
  - Special Thanks: [@&#8203;ash2k](https://github.com/ash2k)

### Performance Improvements

- alts: Pool read buffers to lower memory utilization when sockets are unreadable. ([#&#8203;8964](grpc/grpc-go#8964))
- transport: Pool HTTP/2 framer read buffers to reduce idle memory consumption. Currently limited to Linux for ALTS and non-encrypted transports (TCP, Unix). To disable, set `GRPC_GO_EXPERIMENTAL_HTTP_FRAMER_READ_BUFFER_POOLING=false` and report any issues. ([#&#8203;9032](grpc/grpc-go#9032))

### [`v1.80.0`](https://github.com/grpc/grpc-go/releases/tag/v1.80.0): Release 1.80.0

[Compare Source](grpc/grpc-go@v1.79.3...v1.80.0)

### Behavior Changes

- balancer: log a warning if a balancer is registered with uppercase letters, as balancer names should be lowercase. In a future release, balancer names will be treated as case-insensitive; see [#&#8203;5288](grpc/grpc-go#5288) for details. ([#&#8203;8837](grpc/grpc-go#8837))
- xds: update resource error handling and re-resolution logic ([#&#8203;8907](grpc/grpc-go#8907))
  - Re-resolve all `LOGICAL_DNS` clusters simultaneously when re-resolution is requested.
  - Fail all in-flight RPCs immediately upon receipt of listener or route resource errors, instead of allowing them to complete.

### Bug Fixes

- xds: support the LB policy configured in `LOGICAL_DNS` cluster resources instead of defaulting to `pick_first`. ([#&#8203;8733](grpc/grpc-go#8733))
- credentials/tls: perform per-RPC authority validation against the leaf certificate instead of the entire peer certificate chain. ([#&#8203;8831](grpc/grpc-go#8831))
- xds: enabling A76 ring hash endpoint keys no longer causes EDS resources with invalid proxy metadata to be NACKed when HTTP CONNECT (gRFC A86) is disabled. ([#&#8203;8875](grpc/grpc-go#8875))
- xds: validate that the sum of endpoint weights in a locality does not exceed the maximum `uint32` value. ([#&#8203;8899](grpc/grpc-go#8899))
  - Special Thanks: [@&#8203;RAVEYUS](https://github.com/RAVEYUS)
- xds: fix incorrect proto field access in the weighted round robin (WRR) configuration where `blackout_period` was used instead of `weight_expiration_period`. ([#&#8203;8915](grpc/grpc-go#8915))
  - Special Thanks: [@&#8203;gregbarasch](https://github.com/gregbarasch)
- xds/rbac: handle addresses with ports in IP matchers. ([#&#8203;8990](grpc/grpc-go#8990))

### New Features

- ringhash: enable gRFC A76 (endpoint hash keys and request hash headers) by default. ([#&#8203;8922](grpc/grpc-go#8922))

### Performance Improvements

- credentials/alts: pool write buffers to reduce memory allocations and usage. ([#&#8203;8919](grpc/grpc-go#8919))
- grpc: enable the use of pooled write buffers for buffering HTTP/2 frame writes by default. This reduces memory usage when connections are idle. Use the [WithSharedWriteBuffer](https://pkg.go.dev/google.golang.org/grpc#WithSharedWriteBuffer) dial option or the [SharedWriteBuffer](https://pkg.go.dev/google.golang.org/grpc#SharedWriteBuffer) server option to disable this feature. ([#&#8203;8957](grpc/grpc-go#8957))
- xds/priority: stop caching child LB policies removed from the configuration. This will help reduce memory and cpu usage when localities are constantly switching between priorities. ([#&#8203;8997](grpc/grpc-go#8997))
- mem: add a faster tiered buffer pool; use the experimental [mem.NewBinaryTieredBufferPool](https://pkg.go.dev/google.golang.org/grpc/mem@master#NewBinaryTieredBufferPool) function to create such pools. ([#&#8203;8775](grpc/grpc-go#8775))

</details>

---

### Configuration

📅 **Schedule**: (UTC)

- Branch creation
  - At any time (no schedule defined)
- Automerge
  - Between 12:00 AM and 03:59 AM (`* 0-3 * * *`)

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

---

This PR has been generated by [Mend Renovate](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4yNzIuMCIsInVwZGF0ZWRJblZlciI6IjQzLjI3Mi4wIiwidGFyZ2V0QnJhbmNoIjoidjE2LjAvZm9yZ2VqbyIsImxhYmVscyI6WyJkZXBlbmRlbmN5LXVwZ3JhZGUiLCJ0ZXN0L25vdC1uZWVkZWQiXX0=-->

Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/13580
Reviewed-by: Mathieu Fenniak <mfenniak@noreply.codeberg.org>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

Area: xDS Includes everything xDS related, including LB policies used with xDS. Type: Feature New features or improvements in behavior

Projects

None yet

Development

Successfully merging this pull request may close these issues.

Behavior change for A61 update: remove special case for LOGICAL_DNS clusters

5 participants