Release prep 1.3.1: avoid DNS for disabled ADP bootstrap

[jszwedko]

Summary

Release-prep PR for ADP 1.3.1 on releases/1.3.x. Cherry-pick of #2041 plus a version bump.

Backports the fix that avoids DNS lookups during ADP bootstrap when IPC is disabled, preventing startup failures in environments where DNS resolution isn't available.

Commits

• Cherry-pick of c8a82cb75a (fix(agent-data-plane): avoid DNS for disabled ADP bootstrap #2041) — fix(agent-data-plane): avoid DNS for disabled ADP bootstrap
• chore(dev): Bump ADP to 1.3.1

Test plan

• cargo check passes for the affected crates on the 1.3.x toolchain.

🤖 Generated with Claude Code

[datadog-official]

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⚠️ Warnings

🚦 2 Pipeline jobs failed

DataDog/saluki | unit-tests-windows-amd64     

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🔗 Commit SHA: 5825f7b | Docs | Datadog PR Page | Give us feedback!}

[Copilot]

Pull request overview

Prepares the ADP 1.3.1 release by backporting the “no DNS during IPC bootstrap” fix, ensuring ADP startup doesn’t fail in DNS-less environments when the Core Agent IPC endpoint is a literal loopback address.

Changes:

• Adds a “no-DNS” mode to the shared HTTP connector builder and exercises it in a unit test.
• Uses the no-DNS connector for Core Agent IPC client construction.
• Adds an integration test case that clears /etc/resolv.conf and validates ADP startup; bumps ADP version to 1.3.1.

Reviewed changes

Copilot reviewed 6 out of 8 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
test/integration/cases/adp-ipc-no-dns/empty-resolv-conf.sh	Container init script to clear /etc/resolv.conf for the integration test.
test/integration/cases/adp-ipc-no-dns/config.yaml	New integration case asserting ADP starts cleanly without system DNS config.
lib/saluki-io/src/net/client/http/conn.rs	Adds without_dns_resolution() support to the HTTPS-capable connector builder (+ unit test).
lib/datadog-agent/commons/src/ipc/client/mod.rs	Switches Core Agent IPC client connector construction to no-DNS mode.
docker/scripts/agent-data-plane/app/00-install-ca-certs.sh	Stops pinning ca-certificates to a specific version.
docker/Dockerfile.proxy-dumper	Stops pinning ca-certificates to a specific version during image build.
Cargo.lock	Updates agent-data-plane crate version to 1.3.1.
bin/agent-data-plane/Cargo.toml	Bumps ADP package version from 1.3.0 to 1.3.1.

---

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[pr-commenter]

Binary Size Analysis (Agent Data Plane)

Baseline: f546aa0 · Comparison: 5825f7b · diff
Analysis Configuration: stripped binaries · Pass/Fail Threshold: +5%
Sizes: 41.66 MiB (baseline) vs 41.66 MiB (comparison)
Size Change: +2.44 KiB (+0.01%)

✅ Binary size difference within threshold

Changes by Module

Module	File Size	Symbols
tonic	+21.63 KiB	228
http_body_util	-18.63 KiB	83
anon.c1c414352e857dde7a9d7b1ad53124cc.132.llvm.4296059611656155176	+17.33 KiB	1
anon.4fce6c7d2aa45dd9a6f02a2c0752f076.498.llvm.9573164220153040075	-17.32 KiB	1
prost	-12.36 KiB	31
anon.5db942e1cd943cc112e8df2a4f481a3c.82.llvm.9659898954623019215	+9.60 KiB	1
anon.5f2ad6b78d80e06a5486a3aa9b588cac.0.llvm.1198158128097889638	-9.60 KiB	1
tonic_prost	+4.50 KiB	21
tokio	+4.17 KiB	1142
std	-3.48 KiB	98
alloc	+3.45 KiB	609
anyhow	-3.41 KiB	487
anon.c634cdd191b074daa02132113dde11a6.215.llvm.12687169279931369570	+3.37 KiB	1
anon.e51ff24844fb89fcc0c2bfdacceee053.227.llvm.7818023259164723953	-3.37 KiB	1
anon.afa712d8cb3e10ca04735411385b903d.153.llvm.6315979240525166414	+3.29 KiB	1
anon.b4e720ff31d34137fbb65f39e9824087.393.llvm.8649721099890346063	-3.19 KiB	1
http	+2.93 KiB	105
anon.1235f2e820aba4ef2ff8e9c2f637e5d7.34.llvm.13909526870877785285	+2.73 KiB	1
anon.0481a888e4b4d146aaa3ecd786dcb4ee.79.llvm.30645079778979330	-2.64 KiB	1
core	+2.63 KiB	4217

Detailed Symbol Changes

    FILE SIZE        VM SIZE    
 --------------  -------------- 
  [NEW] +47.1Ki  [NEW] +47.0Ki    agent_data_plane::cli::run::handle_run_command::_{{closure}}::hc8affffbeadc2d5c
  [NEW] +31.8Ki  [NEW] +31.7Ki    agent_data_plane::internal::env::workload::RemoteAgentWorkloadProvider::from_configuration::_{{closure}}::h5686a86957d97eff
  [NEW] +30.6Ki  [NEW] +30.4Ki    agent_data_plane::cli::dogstatsd::handle_dogstatsd_command::_{{closure}}::h2e616bd356ccdeff
  [NEW] +28.1Ki  [NEW] +28.0Ki    agent_data_plane::cli::run::create_topology::_{{closure}}::hc5601534ee97eb14
  [NEW] +24.7Ki  [NEW] +24.6Ki    agent_data_plane::internal::remote_agent::run_remote_agent_registration_loop::_{{closure}}::hfd94d8717f2fdb98
  [NEW] +22.0Ki  [NEW] +21.8Ki    _<agent_data_plane::components::host_tags::HostTagsConfiguration as saluki_core::components::transforms::builder::SynchronousTransformBuilder>::build::_{{closure}}::hc68dc6ef3cfdb177
  [NEW] +21.1Ki  [NEW] +21.0Ki    agent_data_plane::cli::debug::handle_debug_command::_{{closure}}::h3a31fd00fc91c2a0
  [NEW] +20.4Ki  [NEW] +20.1Ki    datadog_agent_commons::ipc::client::RemoteAgentClient::from_client_configuration::_{{closure}}::_{{closure}}::_{{closure}}::h70dc3414fb1d4ccc
  [NEW] +17.5Ki  [NEW] +17.4Ki    agent_data_plane::main::_{{closure}}::hbe9aa603ebf62280
  [NEW] +17.3Ki  [NEW]     +81    anon.c1c414352e857dde7a9d7b1ad53124cc.132.llvm.4296059611656155176
  +0.0% +2.36Ki  -0.0% -2.86Ki    [14854 Others]
  [DEL] -17.3Ki  [DEL]     -81    anon.4fce6c7d2aa45dd9a6f02a2c0752f076.498.llvm.9573164220153040075
  [DEL] -17.5Ki  [DEL] -17.4Ki    agent_data_plane::main::_{{closure}}::h7cb36cca64285871
  [DEL] -20.4Ki  [DEL] -20.1Ki    datadog_agent_commons::ipc::client::RemoteAgentClient::from_client_configuration::_{{closure}}::_{{closure}}::_{{closure}}::h8dddc0a36b9fb746
  [DEL] -21.1Ki  [DEL] -21.0Ki    agent_data_plane::cli::debug::handle_debug_command::_{{closure}}::h24bb9b7fa72cef6e
  [DEL] -22.1Ki  [DEL] -21.9Ki    _<agent_data_plane::components::host_tags::HostTagsConfiguration as saluki_core::components::transforms::builder::SynchronousTransformBuilder>::build::_{{closure}}::h64642649d7aa39ca
  [DEL] -24.7Ki  [DEL] -24.6Ki    agent_data_plane::internal::remote_agent::run_remote_agent_registration_loop::_{{closure}}::h1c441ce1d1aec584
  [DEL] -28.1Ki  [DEL] -28.0Ki    agent_data_plane::cli::run::create_topology::_{{closure}}::h91635d5deaa854cc
  [DEL] -30.6Ki  [DEL] -30.4Ki    agent_data_plane::cli::dogstatsd::handle_dogstatsd_command::_{{closure}}::h59e759ccdf259361
  [DEL] -31.6Ki  [DEL] -31.4Ki    agent_data_plane::internal::env::workload::RemoteAgentWorkloadProvider::from_configuration::_{{closure}}::h12f67e29ed7b9186
  [DEL] -47.2Ki  [DEL] -47.0Ki    agent_data_plane::cli::run::handle_run_command::_{{closure}}::hf0f541f4d97eee22
  +0.0% +2.44Ki  -0.0% -2.79Ki    TOTAL

[pr-commenter]

Regression Detector (Agent Data Plane)

Run ID: aa18c938-b021-45e9-9f1e-6514f00047be
Baseline: f546aa02 · Comparison: 5825f7b9 · diff

Optimization Goals: ✅ No significant changes detected

Fine details of change detection per experiment (5)

Experiments configured erratic: true are tagged (ignored) and skipped when determining which experiments regressed or improved. Experiments which are detected as erratic at runtime are tagged (erratic) to flag that the run's sample dispersion was high, but their regression / improvement signal still counts.

experiment	goal	Δ mean %	links
quality_gates_rss_dsd_heavy	memory	⚪ +0.04	metrics profiles logs
quality_gates_rss_idle	memory	⚪ -0.01	metrics profiles logs
quality_gates_rss_dsd_ultraheavy	memory	⚪ -0.20	metrics profiles logs
quality_gates_rss_dsd_medium	memory	⚪ -0.21	metrics profiles logs
quality_gates_rss_dsd_low	memory	⚪ -0.41	metrics profiles logs

Bounds Checks: ✅ Passed (5)

experiment	check	replicates	observed	links
quality_gates_rss_dsd_heavy	memory_usage	10/10	✅ 135 MiB ≤ 140 MiB	metrics profiles logs
quality_gates_rss_dsd_low	memory_usage	10/10	✅ 43 MiB ≤ 50 MiB	metrics profiles logs
quality_gates_rss_dsd_medium	memory_usage	10/10	✅ 64.9 MiB ≤ 75 MiB	metrics profiles logs
quality_gates_rss_dsd_ultraheavy	memory_usage	10/10	✅ 192 MiB ≤ 200 MiB	metrics profiles logs
quality_gates_rss_idle	memory_usage	10/10	✅ 29.1 MiB ≤ 40 MiB	metrics profiles logs

Explanation

A change is flagged as a regression when |Δ mean %| > 5.00% in the regressing direction for its optimization goal AND SMP marks the experiment as a regression (is_regression: true). Improvements use the matching criteria for the improving direction. Experiments configured erratic: true (tagged (ignored)) are skipped outright; experiments detected as erratic at runtime (tagged (erratic)) still count, since that flag describes sample dispersion rather than directional certainty. The Δ mean % cell is colored accordingly: 🟢 = improvement, 🔴 = regression, ⚪ = neutral. Reduction in CPU or memory is an improvement; reduction in ingress throughput is a regression.