Add e2e tests for static KSM tags

[justin-lesko]

What does this PR do?

This PR adds checks for static tags from the DD_TAGS environment variable and kubernetes_state_core.yaml instance config.

Motivation

Testing for static tag regression.

Describe how you validated your changes

I invoked the KSM test suite locally:

deva new-e2e-tests.run --targets ./tests/containers --run TestKindSuite/TestKSM --cluster-agent-image docker.io/datadog/cluster-agent:7.64.0-rc.4 --agent-image docker.io/datadog/agent:7.64.0-rc.4


=== RUN   TestKindSuite/TestKSM
    base_test.go:37: START  kindSuite/TestKSM 2025-02-26 17:03:39.034871 -0500 EST m=+275.138871043
=== RUN   TestKindSuite/TestKSM/metric___kubernetes_state.vpa.count{^kube_namespace:workload-nginx$}
=== RUN   TestKindSuite/TestKSM/metric___kubernetes_state.vpa.count{^kube_namespace:workload-redis$}
=== RUN   TestKindSuite/TestKSM/metric___kubernetes_state_customresource.ddm_value{}

Possible Drawbacks / Trade-offs

Additional Notes

Related PR: DataDog/test-infra-definitions#1443

[justin-lesko]

/trigger-ci --variable RUN_ALL_BUILDS=true --variable RUN_KITCHEN_TESTS=true --variable RUN_E2E_TESTS=auto

[dd-devflow]

View all feedbacks in Devflow UI.
2025-02-27 22:05:25 UTC ℹ️ Start processing command /trigger-ci --variable RUN_ALL_BUILDS=true --variable RUN_KITCHEN_TESTS=true --variable RUN_E2E_TESTS=auto

---

2025-02-27 22:06:04 UTC ℹ️ Gitlab pipeline started

Started pipeline #57284048

[dd-devflow]

View all feedbacks in Devflow UI.
2025-02-27 22:06:06 UTC ℹ️ Devflow: /trigger-ci --variable RUN_ALL_BUILDS=true --variable RUN_KITCHEN_TESTS=true --variable RUN_E2E_TESTS=auto

[agent-platform-auto-pr]

[Fast Unit Tests Report]

On pipeline 58172172 (CI Visibility). The following jobs did not run any unit tests:

Jobs:

• tests_windows-x64

If you modified Go files and expected unit tests to run in these jobs, please double check the job logs. If you think tests should have been executed reach out to #agent-devx-help

[agent-platform-auto-pr]

Test changes on VM

Use this command from test-infra-definitions to manually test this PR changes on a VM:

dda inv aws.create-vm --pipeline-id=58172172 --os-family=ubuntu

Note: This applies to commit 0794f9e

[agent-platform-auto-pr]

Uncompressed package size comparison

Comparison with ancestor eb6d35ef1b3a2fee6dfdebbaa1fbce23751a4c87

Diff per package

package	diff	status	size	ancestor	threshold
datadog-agent-amd64-deb	0.00MB	✅	811.33MB	811.33MB	0.50MB
datadog-agent-x86_64-rpm	0.00MB	✅	821.12MB	821.12MB	0.50MB
datadog-agent-x86_64-suse	0.00MB	✅	821.12MB	821.12MB	0.50MB
datadog-agent-arm64-deb	0.00MB	✅	802.31MB	802.31MB	0.50MB
datadog-agent-aarch64-rpm	0.00MB	✅	812.08MB	812.08MB	0.50MB
datadog-dogstatsd-amd64-deb	0.00MB	✅	39.29MB	39.29MB	0.50MB
datadog-dogstatsd-x86_64-rpm	0.00MB	✅	39.37MB	39.37MB	0.50MB
datadog-dogstatsd-x86_64-suse	0.00MB	✅	39.37MB	39.37MB	0.50MB
datadog-dogstatsd-arm64-deb	0.00MB	✅	37.82MB	37.82MB	0.50MB
datadog-heroku-agent-amd64-deb	0.00MB	✅	440.53MB	440.53MB	0.50MB
datadog-iot-agent-amd64-deb	0.00MB	✅	62.13MB	62.13MB	0.50MB
datadog-iot-agent-x86_64-rpm	0.00MB	✅	62.20MB	62.20MB	0.50MB
datadog-iot-agent-x86_64-suse	0.00MB	✅	62.20MB	62.20MB	0.50MB
datadog-iot-agent-arm64-deb	0.00MB	✅	59.35MB	59.35MB	0.50MB
datadog-iot-agent-aarch64-rpm	0.00MB	✅	59.42MB	59.42MB	0.50MB

Decision

✅ Passed

[agent-platform-auto-pr]

Static quality checks ✅

Please find below the results from static quality gates

Successful checks

Info

Result	Quality gate	On disk size	On disk size limit	On wire size	On wire size limit
✅	static_quality_gate_agent_deb_amd64	785.1 MiB	801.8 MiB	191.44 MiB	202.62 MiB
✅	static_quality_gate_agent_deb_arm64	776.47 MiB	793.14 MiB	173.11 MiB	184.51 MiB
✅	static_quality_gate_agent_rpm_amd64	785.22 MiB	801.79 MiB	193.13 MiB	205.03 MiB
✅	static_quality_gate_agent_rpm_arm64	776.62 MiB	793.09 MiB	175.63 MiB	186.44 MiB
✅	static_quality_gate_agent_suse_amd64	785.15 MiB	801.81 MiB	193.13 MiB	205.03 MiB
✅	static_quality_gate_agent_suse_arm64	776.49 MiB	793.14 MiB	175.63 MiB	186.44 MiB
✅	static_quality_gate_dogstatsd_deb_amd64	37.54 MiB	47.67 MiB	9.73 MiB	19.78 MiB
✅	static_quality_gate_dogstatsd_deb_arm64	36.14 MiB	46.27 MiB	8.44 MiB	18.49 MiB
✅	static_quality_gate_dogstatsd_rpm_amd64	37.54 MiB	47.67 MiB	9.74 MiB	19.79 MiB
✅	static_quality_gate_dogstatsd_suse_amd64	37.54 MiB	47.67 MiB	9.74 MiB	19.79 MiB
✅	static_quality_gate_iot_agent_deb_amd64	59.33 MiB	69.0 MiB	14.9 MiB	24.8 MiB
✅	static_quality_gate_iot_agent_deb_arm64	56.68 MiB	66.4 MiB	12.87 MiB	22.8 MiB
✅	static_quality_gate_iot_agent_rpm_amd64	59.33 MiB	69.0 MiB	14.92 MiB	24.8 MiB
✅	static_quality_gate_iot_agent_rpm_arm64	56.68 MiB	66.4 MiB	12.86 MiB	22.8 MiB
✅	static_quality_gate_iot_agent_suse_amd64	59.33 MiB	69.0 MiB	14.92 MiB	24.8 MiB
✅	static_quality_gate_docker_agent_amd64	869.89 MiB	886.12 MiB	292.65 MiB	304.21 MiB
✅	static_quality_gate_docker_agent_arm64	884.55 MiB	900.79 MiB	278.95 MiB	290.47 MiB
✅	static_quality_gate_docker_agent_jmx_amd64	1.04 GiB	1.06 GiB	367.75 MiB	379.33 MiB
✅	static_quality_gate_docker_agent_jmx_arm64	1.05 GiB	1.06 GiB	350.01 MiB	361.55 MiB
✅	static_quality_gate_docker_dogstatsd_amd64	45.69 MiB	55.78 MiB	17.23 MiB	27.28 MiB
✅	static_quality_gate_docker_dogstatsd_arm64	44.33 MiB	54.45 MiB	16.11 MiB	26.16 MiB
✅	static_quality_gate_docker_cluster_agent_amd64	264.82 MiB	274.78 MiB	106.28 MiB	116.28 MiB
✅	static_quality_gate_docker_cluster_agent_arm64	280.75 MiB	290.82 MiB	101.1 MiB	111.12 MiB

[cit-pr-commenter]

Regression Detector

Regression Detector Results

Metrics dashboard
Target profiles
Run ID: 97b0bcce-278a-430b-9bdc-a49a3b061a23

Baseline: eb6d35e
Comparison: 0794f9e
Diff

Optimization Goals: ✅ No significant changes detected

Fine details of change detection per experiment

perf	experiment	goal	Δ mean %	Δ mean % CI	trials	links
➖	file_tree	memory utilization	+3.83	[+3.64, +4.02]	1	Logs
➖	quality_gate_logs	% cpu utilization	+0.88	[-1.88, +3.63]	1	Logs
➖	quality_gate_idle	memory utilization	+0.55	[+0.46, +0.65]	1	Logs bounds checks dashboard
➖	quality_gate_idle_all_features	memory utilization	+0.42	[+0.30, +0.55]	1	Logs bounds checks dashboard
➖	file_to_blackhole_1000ms_latency	egress throughput	+0.37	[-0.40, +1.14]	1	Logs
➖	file_to_blackhole_1000ms_latency_linear_load	egress throughput	+0.09	[-0.38, +0.55]	1	Logs
➖	file_to_blackhole_0ms_latency_http2	egress throughput	+0.05	[-0.78, +0.87]	1	Logs
➖	file_to_blackhole_0ms_latency_http1	egress throughput	+0.02	[-0.80, +0.84]	1	Logs
➖	file_to_blackhole_300ms_latency	egress throughput	+0.01	[-0.62, +0.65]	1	Logs
➖	uds_dogstatsd_to_api	ingress throughput	+0.01	[-0.30, +0.32]	1	Logs
➖	tcp_dd_logs_filter_exclude	ingress throughput	+0.01	[-0.02, +0.03]	1	Logs
➖	file_to_blackhole_100ms_latency	egress throughput	+0.00	[-0.66, +0.67]	1	Logs
➖	file_to_blackhole_0ms_latency	egress throughput	-0.02	[-0.83, +0.79]	1	Logs
➖	file_to_blackhole_500ms_latency	egress throughput	-0.06	[-0.84, +0.72]	1	Logs
➖	uds_dogstatsd_to_api_cpu	% cpu utilization	-0.55	[-1.40, +0.29]	1	Logs
➖	tcp_syslog_to_blackhole	ingress throughput	-0.88	[-0.94, -0.82]	1	Logs

Bounds Checks: ✅ Passed

perf	experiment	bounds_check_name	replicates_passed	links
✅	file_to_blackhole_0ms_latency	lost_bytes	10/10
✅	file_to_blackhole_0ms_latency	memory_usage	10/10
✅	file_to_blackhole_0ms_latency_http1	lost_bytes	10/10
✅	file_to_blackhole_0ms_latency_http1	memory_usage	10/10
✅	file_to_blackhole_0ms_latency_http2	lost_bytes	10/10
✅	file_to_blackhole_0ms_latency_http2	memory_usage	10/10
✅	file_to_blackhole_1000ms_latency	memory_usage	10/10
✅	file_to_blackhole_1000ms_latency_linear_load	memory_usage	10/10
✅	file_to_blackhole_100ms_latency	lost_bytes	10/10
✅	file_to_blackhole_100ms_latency	memory_usage	10/10
✅	file_to_blackhole_300ms_latency	lost_bytes	10/10
✅	file_to_blackhole_300ms_latency	memory_usage	10/10
✅	file_to_blackhole_500ms_latency	lost_bytes	10/10
✅	file_to_blackhole_500ms_latency	memory_usage	10/10
✅	quality_gate_idle	intake_connections	10/10	bounds checks dashboard
✅	quality_gate_idle	memory_usage	10/10	bounds checks dashboard
✅	quality_gate_idle_all_features	intake_connections	10/10	bounds checks dashboard
✅	quality_gate_idle_all_features	memory_usage	10/10	bounds checks dashboard
✅	quality_gate_logs	intake_connections	10/10
✅	quality_gate_logs	lost_bytes	10/10
✅	quality_gate_logs	memory_usage	10/10

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_logs, bounds check memory_usage: 10/10 replicas passed. Gate passed.
• quality_gate_logs, bounds check lost_bytes: 10/10 replicas passed. Gate passed.
• quality_gate_logs, 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 intake_connections: 10/10 replicas passed. Gate passed.
• quality_gate_idle, bounds check intake_connections: 10/10 replicas passed. Gate passed.
• quality_gate_idle, bounds check memory_usage: 10/10 replicas passed. Gate passed.