[ABLD-310] Add --enable_bazel flag to cws-instrumentation.build

[aiuto]

What this change does

Adds an opt-in enable_bazel parameter to the cws-instrumentation.build
invoke task. When set, the task builds via
bazel build //cmd/cws-instrumentation:cws-instrumentation and copies the
resulting binary into place instead of calling go_build(). Defaults to
False, so existing behavior is unchanged.

Also adds the build_go_binary_with_bazel helper to
tasks/libs/build/bazel.py, which runs the bazel build and copies the
binary from bazel-bin to the expected bin path. (This helper is also
being added independently in the sibling loader PR; whichever merges
second should dedupe it.)

Motivation

Omnibus deprecation: progressively moving dda inv <x>.build tasks that
omnibus calls onto Bazel-built binaries, one binary at a time, behind an
opt-in flag.

How did you validate this

• dda inv -- -e cws-instrumentation.build --enable-bazel invokes
  bazel build //cmd/cws-instrumentation:cws-instrumentation as expected.
• dda inv -- -e cws-instrumentation.build (no flag) still takes the
  legacy go_build() path.
• Confirmed the Bazel target itself builds successfully when
  cross-compiled to Linux (bazel build //cmd/cws-instrumentation:cws-instrumentation --platforms=//bazel/platforms:linux_arm64); on macOS, both the legacy
  and Bazel paths fail identically since cws-instrumentation is a
  Linux-only binary with no darwin build tags and the invoke task does not
  configure cross-compilation, which is a pre-existing limitation
  unrelated to this change.
• dda inv linter.python passes.

[github-actions]

AI review by Codex (OpenAI) - workflow run

Patch is incorrect because the Bazel path silently ignores behavior-affecting build options supported by this task.

[github-actions]

The early return bypasses every existing build option. In particular, injector_only=True no longer applies the cws_instrumentation_injector_only tag, and arch_suffix=True writes to BIN_PATH instead of the suffixed path expected by callers. Either forward equivalent Bazel flags/output selection or reject unsupported combinations explicitly.

[dd-octo-sts]

Files inventory check summary

File checks results against ancestor 6ec84e5e:

Results for datadog-agent_7.84.0~devel.git.557.0a9a274.pipeline.133833390-1_amd64.deb:

No change detected

Results for datadog-iot-agent_7.84.0~devel.git.557.0a9a274.pipeline.133833390-1_amd64.deb:

No change detected

[dd-octo-sts]

Static quality checks

✅ Please find below the results from static quality gates
Comparison made with ancestor 6ec84e5
📊 Static Quality Gates Dashboard
🔗 SQG Job

Successful checks

Info

	Quality gate	Change	Size (prev → curr → max)
✅	docker_agent_amd64	+18.88 KiB (0.00% increase, -2.94% of buffer)	820.372 → 820.391 → 821.000
✅	docker_agent_arm64	+10.88 KiB (0.00% increase, -1.67% of buffer)	821.345 → 821.355 → 821.980
✅	docker_agent_jmx_amd64	+18.88 KiB (0.00% increase, -2.95% of buffer)	1011.285 → 1011.303 → 1011.910
✅	docker_agent_jmx_arm64	+10.88 KiB (0.00% increase, -1.65% of buffer)	1001.037 → 1001.047 → 1001.680
✅	docker_cluster_agent_amd64	+9.21 KiB (0.00% increase, -1.01% of buffer)	211.243 → 211.252 → 212.130
✅	docker_host_profiler_amd64	+28.54 KiB (0.01% increase, -0.26% of buffer)	306.831 → 306.859 → 317.700
✅	docker_host_profiler_arm64	+20.54 KiB (0.01% increase, -0.19% of buffer)	318.144 → 318.164 → 328.970

25 successful checks with minimal change (< 2 KiB)

	Quality gate	Current Size
✅	agent_deb_amd64	761.368 MiB
✅	agent_deb_amd64_fips	713.895 MiB
✅	agent_heroku_amd64	312.942 MiB
✅	agent_rpm_amd64	761.352 MiB
✅	agent_rpm_amd64_fips	713.879 MiB
✅	agent_rpm_arm64	737.288 MiB
✅	agent_rpm_arm64_fips	693.118 MiB
✅	agent_suse_amd64	761.352 MiB
✅	agent_suse_amd64_fips	713.879 MiB
✅	agent_suse_arm64	737.288 MiB
✅	agent_suse_arm64_fips	693.118 MiB
✅	docker_cluster_agent_arm64	224.397 MiB
✅	docker_cws_instrumentation_amd64	7.439 MiB
✅	docker_cws_instrumentation_arm64	6.877 MiB
✅	docker_dogstatsd_amd64	39.545 MiB
✅	docker_dogstatsd_arm64	37.623 MiB
✅	dogstatsd_deb_amd64	30.286 MiB
✅	dogstatsd_deb_arm64	28.302 MiB
✅	dogstatsd_rpm_amd64	30.286 MiB
✅	dogstatsd_suse_amd64	30.286 MiB
✅	iot_agent_deb_amd64	46.560 MiB
✅	iot_agent_deb_arm64	43.196 MiB
✅	iot_agent_deb_armhf	44.003 MiB
✅	iot_agent_rpm_amd64	46.560 MiB
✅	iot_agent_suse_amd64	46.559 MiB

[cit-pr-commenter-54b7da]

Regression Detector

Regression Detector Results

Metrics dashboard
Target profiles
Job ID: 467d5cdb-b327-4250-8adf-cf4f5621824e

Baseline: 6ec84e5
Comparison: 0a9a274
Diff

Optimization Goals: ✅ No significant changes detected

Fine details of change detection per experiment

perf	experiment	goal	Δ mean %	Δ mean % CI	trials	links
➖	dsd_uds_10mb_3k_timestamped_contexts_cpu	% cpu utilization	+0.50	[+0.24, +0.75]	1	Logs
➖	quality_gate_metrics_logs	memory utilization	+0.49	[+0.25, +0.72]	1	Logs bounds checks dashboard
➖	quality_gate_idle_all_features	memory utilization	+0.34	[+0.31, +0.38]	1	Logs bounds checks dashboard
➖	quality_gate_security_mean_fs_load	memory utilization	+0.02	[-0.01, +0.06]	1	Logs bounds checks dashboard
➖	quality_gate_idle	memory utilization	-0.07	[-0.11, -0.03]	1	Logs bounds checks dashboard
➖	quality_gate_security_idle	memory utilization	-0.40	[-0.44, -0.35]	1	Logs bounds checks dashboard
➖	quality_gate_private_action_runner	memory utilization	-0.40	[-0.52, -0.27]	1	Logs bounds checks dashboard
➖	quality_gate_security_no_fs_load	memory utilization	-0.52	[-0.60, -0.44]	1	Logs bounds checks dashboard
➖	dsd_uds_10mb_3k_timestamped_contexts_memory	memory utilization	-0.78	[-0.99, -0.57]	1	Logs
➖	quality_gate_logs	% cpu utilization	-1.70	[-2.59, -0.82]	1	Logs bounds checks dashboard

Bounds Checks: ✅ Passed

perf	experiment	bounds_check_name	replicates_passed	observed_value	links
✅	quality_gate_idle	intake_connections	10/10	4 = 4	bounds checks dashboard
✅	quality_gate_idle	memory_usage	10/10	172.21MiB ≤ 179MiB	bounds checks dashboard
✅	quality_gate_idle	total_bytes_received	10/10	749.80KiB ≤ 819.20KiB	bounds checks dashboard
✅	quality_gate_idle_all_features	intake_connections	10/10	4 = 4	bounds checks dashboard
✅	quality_gate_idle_all_features	memory_usage	10/10	530.65MiB ≤ 537MiB	bounds checks dashboard
✅	quality_gate_idle_all_features	total_bytes_received	10/10	1.14MiB ≤ 1.25MiB	bounds checks dashboard
✅	quality_gate_logs	intake_connections	10/10	19 ≤ 40	bounds checks dashboard
✅	quality_gate_logs	memory_usage	10/10	213.35MiB ≤ 220MiB	bounds checks dashboard
✅	quality_gate_logs	missed_bytes	10/10	0B = 0B	bounds checks dashboard
✅	quality_gate_logs	total_bytes_received	10/10	263.05MiB ≤ 292MiB	bounds checks dashboard
✅	quality_gate_metrics_logs	cpu_usage	10/10	411.76 ≤ 2000	bounds checks dashboard
✅	quality_gate_metrics_logs	intake_connections	10/10	20 ≤ 40	bounds checks dashboard
✅	quality_gate_metrics_logs	memory_usage	10/10	421.30MiB ≤ 455MiB	bounds checks dashboard
✅	quality_gate_metrics_logs	missed_bytes	10/10	0B = 0B	bounds checks dashboard
✅	quality_gate_metrics_logs	total_bytes_received	10/10	0.94GiB ≤ 1.04GiB	bounds checks dashboard
✅	quality_gate_private_action_runner	memory_usage	10/10	72.50MiB ≤ 75MiB	bounds checks dashboard
✅	quality_gate_security_idle	cpu_usage	10/10	28.12 ≤ 100	bounds checks dashboard
✅	quality_gate_security_idle	memory_usage	10/10	323.01MiB ≤ 355MiB	bounds checks dashboard
✅	quality_gate_security_mean_fs_load	cpu_usage	10/10	60.47 ≤ 200	bounds checks dashboard
✅	quality_gate_security_mean_fs_load	memory_usage	10/10	303.41MiB ≤ 335MiB	bounds checks dashboard
✅	quality_gate_security_no_fs_load	cpu_usage	10/10	21.59 ≤ 100	bounds checks dashboard
✅	quality_gate_security_no_fs_load	memory_usage	10/10	306.76MiB ≤ 345MiB	bounds checks dashboard

Explanation

Confidence level: 90.00%
Effect size tolerance: |Δ mean %| ≥ 5.00%

Performance changes are noted in the perf column of each table:

• ✅ = significantly better comparison variant performance
• ❌ = significantly worse comparison variant performance
• ➖ = no significant change in performance

A regression test is an A/B test of target performance in a repeatable rig, where "performance" is measured as "comparison variant minus baseline variant" for an optimization goal (e.g., ingress throughput). Due to intrinsic variability in measuring that goal, we can only estimate its mean value for each experiment; we report uncertainty in that value as a 90.00% confidence interval denoted "Δ mean % CI".

For each experiment, we decide whether a change in performance is a "regression" -- a change worth investigating further -- if all of the following criteria are true:

1. Its estimated |Δ mean %| ≥ 5.00%, indicating the change is big enough to merit a closer look.

2. Its 90.00% confidence interval "Δ mean % CI" does not contain zero, indicating that if our statistical model is accurate, there is at least a 90.00% chance there is a difference in performance between baseline and comparison variants.

3. Its configuration does not mark it "erratic".

CI Pass/Fail Decision

✅ Passed. All Quality Gates passed.

• quality_gate_security_mean_fs_load, bounds check cpu_usage: 10/10 replicas passed. Gate passed.
• quality_gate_security_mean_fs_load, bounds check memory_usage: 10/10 replicas passed. Gate passed.
• quality_gate_private_action_runner, bounds check memory_usage: 10/10 replicas passed. Gate passed.
• quality_gate_idle_all_features, bounds check intake_connections: 10/10 replicas passed. Gate passed.
• quality_gate_idle_all_features, bounds check memory_usage: 10/10 replicas passed. Gate passed.
• quality_gate_idle_all_features, bounds check total_bytes_received: 10/10 replicas passed. Gate passed.
• quality_gate_idle, bounds check intake_connections: 10/10 replicas passed. Gate passed.
• quality_gate_idle, bounds check total_bytes_received: 10/10 replicas passed. Gate passed.
• quality_gate_idle, bounds check memory_usage: 10/10 replicas passed. Gate passed.
• quality_gate_security_idle, bounds check memory_usage: 10/10 replicas passed. Gate passed.
• quality_gate_security_idle, bounds check cpu_usage: 10/10 replicas passed. Gate passed.
• quality_gate_security_no_fs_load, bounds check memory_usage: 10/10 replicas passed. Gate passed.
• quality_gate_security_no_fs_load, bounds check cpu_usage: 10/10 replicas passed. Gate passed.
• quality_gate_logs, bounds check memory_usage: 10/10 replicas passed. Gate passed.
• quality_gate_logs, bounds check missed_bytes: 10/10 replicas passed. Gate passed.
• quality_gate_logs, bounds check intake_connections: 10/10 replicas passed. Gate passed.
• quality_gate_logs, bounds check total_bytes_received: 10/10 replicas passed. Gate passed.
• quality_gate_metrics_logs, bounds check intake_connections: 10/10 replicas passed. Gate passed.
• quality_gate_metrics_logs, bounds check memory_usage: 10/10 replicas passed. Gate passed.
• quality_gate_metrics_logs, bounds check missed_bytes: 10/10 replicas passed. Gate passed.
• quality_gate_metrics_logs, bounds check total_bytes_received: 10/10 replicas passed. Gate passed.
• quality_gate_metrics_logs, bounds check cpu_usage: 10/10 replicas passed. Gate passed.