fix(devcontainer): add platform option for amd64 images

[wdhif]

What does this PR do?

Adds an explicit --platform=linux/amd64 run argument when the devcontainer image is an amd64 image, so Docker runs it with the correct architecture.

Motivation

On hosts where Docker may default to a different platform (e.g., Apple Silicon), amd64 devcontainer images can be pulled/run with the wrong architecture/emulation unless the platform is specified.

Describe how you validated your changes

• Ran the devcontainer setup task and verified the generated runArgs includes --platform=linux/amd64 when using an amd64 devcontainer image.

datadog@28976e101240:/workspaces/datadog-agent-primary$ uname -a
Linux 28976e101240 6.12.72-linuxkit #1 SMP Mon Feb 16 11:19:07 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux

Additional Notes

• Change is limited to tasks/devcontainer.py and only applies when "amd64" is present in the image name.

[agent-platform-auto-pr]

Files inventory check summary

File checks results against ancestor 178cf93a:

Results for datadog-agent_7.78.0~devel.git.760.ba07388.pipeline.103679749-1_amd64.deb:

No change detected

[agent-platform-auto-pr]

Static quality checks

✅ Please find below the results from static quality gates
Comparison made with ancestor 3e13ad5
📊 Static Quality Gates Dashboard
🔗 SQG Job
SOME SIZE DELTAS ARE N/A (ANCESTOR METRICS NOT YET AVAILABLE). RETRY JOB

Successful checks

Info

	Quality gate	Change	Size (prev → curr → max)
✅	agent_deb_amd64	N/A	N/A → 750.698 → 750.720
✅	agent_deb_amd64_fips	N/A	N/A → 707.630 → 711.230
✅	agent_heroku_amd64	N/A	N/A → 313.002 → 320.580
✅	agent_rpm_amd64	N/A	N/A → 750.682 → 750.690
✅	agent_rpm_amd64_fips	N/A	N/A → 707.614 → 711.210
✅	agent_rpm_arm64	N/A	N/A → 729.014 → 732.890
✅	agent_rpm_arm64_fips	N/A	N/A → 689.006 → 694.440
✅	agent_suse_amd64	N/A	N/A → 750.682 → 750.690
✅	agent_suse_amd64_fips	N/A	N/A → 707.614 → 711.210
✅	agent_suse_arm64	N/A	N/A → 729.014 → 732.890
✅	agent_suse_arm64_fips	N/A	N/A → 689.006 → 694.440
✅	docker_agent_amd64	N/A	N/A → 811.017 → 813.040
✅	docker_agent_arm64	N/A	N/A → 814.162 → 819.570
✅	docker_agent_jmx_amd64	N/A	N/A → 1001.932 → 1003.920
✅	docker_agent_jmx_arm64	N/A	N/A → 993.857 → 999.170
✅	docker_cluster_agent_amd64	N/A	N/A → 205.172 → 206.270
✅	docker_cluster_agent_arm64	N/A	N/A → 219.549 → 220.000
✅	docker_cws_instrumentation_amd64	N/A	N/A → 7.142 → 7.180
✅	docker_cws_instrumentation_arm64	N/A	N/A → 6.689 → 6.920
✅	docker_dogstatsd_amd64	N/A	N/A → 39.215 → 39.380
✅	docker_dogstatsd_arm64	N/A	N/A → 37.445 → 37.940
✅	dogstatsd_deb_amd64	N/A	N/A → 29.855 → 30.610
✅	dogstatsd_deb_arm64	N/A	N/A → 28.007 → 29.110
✅	dogstatsd_rpm_amd64	N/A	N/A → 29.855 → 30.610
✅	dogstatsd_suse_amd64	N/A	N/A → 29.855 → 30.610
✅	iot_agent_deb_amd64	N/A	N/A → 43.218 → 43.290
✅	iot_agent_deb_arm64	N/A	N/A → 40.273 → 40.920
✅	iot_agent_deb_armhf	N/A	N/A → 41.017 → 41.030
✅	iot_agent_rpm_amd64	N/A	N/A → 43.219 → 43.290
✅	iot_agent_suse_amd64	N/A	N/A → 43.219 → 43.290

On-wire sizes (compressed)

	Quality gate	Change	Size (prev → curr → max)
✅	agent_deb_amd64	N/A	N/A → 174.696 → 177.700
✅	agent_deb_amd64_fips	N/A	N/A → 165.219 → 172.230
✅	agent_heroku_amd64	N/A	N/A → 74.948 → 79.970
✅	agent_rpm_amd64	N/A	N/A → 177.589 → 180.780
✅	agent_rpm_amd64_fips	N/A	N/A → 167.298 → 173.370
✅	agent_rpm_arm64	N/A	N/A → 159.591 → 161.610
✅	agent_rpm_arm64_fips	N/A	N/A → 151.260 → 155.910
✅	agent_suse_amd64	N/A	N/A → 177.589 → 180.780
✅	agent_suse_amd64_fips	N/A	N/A → 167.298 → 173.370
✅	agent_suse_arm64	N/A	N/A → 159.591 → 161.610
✅	agent_suse_arm64_fips	N/A	N/A → 151.260 → 155.910
✅	docker_agent_amd64	N/A	N/A → 267.882 → 271.240
✅	docker_agent_arm64	N/A	N/A → 255.084 → 259.800
✅	docker_agent_jmx_amd64	N/A	N/A → 336.525 → 339.870
✅	docker_agent_jmx_arm64	N/A	N/A → 319.722 → 324.390
✅	docker_cluster_agent_amd64	N/A	N/A → 71.886 → 72.920
✅	docker_cluster_agent_arm64	N/A	N/A → 67.458 → 68.220
✅	docker_cws_instrumentation_amd64	N/A	N/A → 2.999 → 3.330
✅	docker_cws_instrumentation_arm64	N/A	N/A → 2.729 → 3.090
✅	docker_dogstatsd_amd64	N/A	N/A → 15.161 → 15.820
✅	docker_dogstatsd_arm64	N/A	N/A → 14.480 → 14.830
✅	dogstatsd_deb_amd64	N/A	N/A → 7.886 → 8.790
✅	dogstatsd_deb_arm64	N/A	N/A → 6.774 → 7.710
✅	dogstatsd_rpm_amd64	N/A	N/A → 7.896 → 8.800
✅	dogstatsd_suse_amd64	N/A	N/A → 7.896 → 8.800
✅	iot_agent_deb_amd64	N/A	N/A → 11.386 → 12.040
✅	iot_agent_deb_arm64	N/A	N/A → 9.696 → 10.450
✅	iot_agent_deb_armhf	N/A	N/A → 9.929 → 10.620
✅	iot_agent_rpm_amd64	N/A	N/A → 11.401 → 12.060
✅	iot_agent_suse_amd64	N/A	N/A → 11.401 → 12.060

[cit-pr-commenter-54b7da]

Regression Detector

Regression Detector Results

Metrics dashboard
Target profiles
Run ID: d34c2eec-c397-4105-8311-4cd0f1c6b0a1

Baseline: 83828e2
Comparison: eb3185d
Diff

Optimization Goals: ✅ No significant changes detected

Experiments ignored for regressions

Regressions in experiments with settings containing erratic: true are ignored.

perf	experiment	goal	Δ mean %	Δ mean % CI	trials	links
➖	docker_containers_cpu	% cpu utilization	+2.22	[-0.87, +5.32]	1	Logs

Fine details of change detection per experiment

perf	experiment	goal	Δ mean %	Δ mean % CI	trials	links
➖	docker_containers_cpu	% cpu utilization	+2.22	[-0.87, +5.32]	1	Logs
➖	ddot_metrics_sum_delta	memory utilization	+0.57	[+0.40, +0.74]	1	Logs
➖	ddot_metrics_sum_cumulative	memory utilization	+0.52	[+0.38, +0.66]	1	Logs
➖	ddot_metrics_sum_cumulativetodelta_exporter	memory utilization	+0.37	[+0.15, +0.60]	1	Logs
➖	quality_gate_idle_all_features	memory utilization	+0.14	[+0.10, +0.18]	1	Logs bounds checks dashboard
➖	uds_dogstatsd_20mb_12k_contexts_20_senders	memory utilization	+0.14	[+0.07, +0.20]	1	Logs
➖	otlp_ingest_logs	memory utilization	+0.10	[-0.00, +0.19]	1	Logs
➖	file_tree	memory utilization	+0.09	[+0.04, +0.14]	1	Logs
➖	quality_gate_idle	memory utilization	+0.09	[+0.04, +0.15]	1	Logs bounds checks dashboard
➖	ddot_logs	memory utilization	+0.03	[-0.03, +0.08]	1	Logs
➖	file_to_blackhole_100ms_latency	egress throughput	+0.01	[-0.08, +0.09]	1	Logs
➖	tcp_dd_logs_filter_exclude	ingress throughput	-0.00	[-0.12, +0.11]	1	Logs
➖	uds_dogstatsd_to_api_v3	ingress throughput	-0.00	[-0.21, +0.20]	1	Logs
➖	file_to_blackhole_0ms_latency	egress throughput	-0.01	[-0.49, +0.46]	1	Logs
➖	uds_dogstatsd_to_api	ingress throughput	-0.02	[-0.22, +0.18]	1	Logs
➖	file_to_blackhole_500ms_latency	egress throughput	-0.05	[-0.44, +0.34]	1	Logs
➖	quality_gate_logs	% cpu utilization	-0.06	[-1.65, +1.53]	1	Logs bounds checks dashboard
➖	file_to_blackhole_1000ms_latency	egress throughput	-0.07	[-0.50, +0.36]	1	Logs
➖	docker_containers_memory	memory utilization	-0.30	[-0.38, -0.22]	1	Logs
➖	ddot_metrics	memory utilization	-0.57	[-0.75, -0.39]	1	Logs
➖	otlp_ingest_metrics	memory utilization	-0.84	[-1.00, -0.68]	1	Logs
➖	tcp_syslog_to_blackhole	ingress throughput	-1.17	[-1.30, -1.04]	1	Logs
➖	quality_gate_metrics_logs	memory utilization	-1.63	[-1.87, -1.39]	1	Logs bounds checks dashboard

Bounds Checks: ✅ Passed

perf	experiment	bounds_check_name	replicates_passed	observed_value	links
✅	docker_containers_cpu	simple_check_run	10/10	727 ≥ 26
✅	docker_containers_memory	memory_usage	10/10	273.54MiB ≤ 370MiB
✅	docker_containers_memory	simple_check_run	10/10	697 ≥ 26
✅	file_to_blackhole_0ms_latency	memory_usage	10/10	0.19GiB ≤ 1.20GiB
✅	file_to_blackhole_0ms_latency	missed_bytes	10/10	0B = 0B
✅	file_to_blackhole_1000ms_latency	memory_usage	10/10	0.23GiB ≤ 1.20GiB
✅	file_to_blackhole_1000ms_latency	missed_bytes	10/10	0B = 0B
✅	file_to_blackhole_100ms_latency	memory_usage	10/10	0.20GiB ≤ 1.20GiB
✅	file_to_blackhole_100ms_latency	missed_bytes	10/10	0B = 0B
✅	file_to_blackhole_500ms_latency	memory_usage	10/10	0.21GiB ≤ 1.20GiB
✅	file_to_blackhole_500ms_latency	missed_bytes	10/10	0B = 0B
✅	quality_gate_idle	intake_connections	10/10	3 = 3	bounds checks dashboard
✅	quality_gate_idle	memory_usage	10/10	174.72MiB ≤ 175MiB	bounds checks dashboard
✅	quality_gate_idle_all_features	intake_connections	10/10	2 ≤ 3	bounds checks dashboard
✅	quality_gate_idle_all_features	memory_usage	10/10	494.17MiB ≤ 550MiB	bounds checks dashboard
✅	quality_gate_logs	intake_connections	10/10	4 ≤ 6	bounds checks dashboard
✅	quality_gate_logs	memory_usage	10/10	203.39MiB ≤ 220MiB	bounds checks dashboard
✅	quality_gate_logs	missed_bytes	10/10	0B = 0B	bounds checks dashboard
✅	quality_gate_metrics_logs	cpu_usage	10/10	355.79 ≤ 2000	bounds checks dashboard
✅	quality_gate_metrics_logs	intake_connections	10/10	3 ≤ 6	bounds checks dashboard
✅	quality_gate_metrics_logs	memory_usage	10/10	409.16MiB ≤ 475MiB	bounds checks dashboard
✅	quality_gate_metrics_logs	missed_bytes	10/10	0B = 0B	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_idle, bounds check memory_usage: 10/10 replicas passed. Gate passed.
• quality_gate_idle, bounds check intake_connections: 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_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 intake_connections: 10/10 replicas passed. Gate passed.
• quality_gate_metrics_logs, bounds check cpu_usage: 10/10 replicas passed. Gate passed.
• quality_gate_logs, bounds check intake_connections: 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.

[Copilot]

Pull request overview

This PR updates the devcontainer configuration generator to explicitly set Docker’s target platform when running an amd64 devcontainer image, avoiding incorrect default platform selection on multi-arch hosts (e.g., Apple Silicon).

Changes:

• Adds --platform=linux/amd64 to the generated runArgs when the devcontainer image is detected as amd64.

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