Improve inferred gateway span design

[PerfectSlayer]

Move their context and propagator into tracing/api. Refactor tests
Simplify context element
Fix propagator

What Does This Do

Motivation

Additional Notes

Contributor Checklist

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  Use solves instead, and assign the PR milestone to the issue
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Jira ticket: [PROJ-IDENT]

[pr-commenter]

Benchmarks

Startup

Load

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
end_time	2025-05-12T10:07:15	2025-05-12T10:14:59
git_branch	master	bbujon/gateway-inferred-span
git_commit_date	1747042167	1747043877
git_commit_sha	e5785f7	276f07a
release_version	1.50.0-SNAPSHOT~e5785f7306	1.50.0-SNAPSHOT~276f07a332
start_time	2025-05-12T10:07:00	2025-05-12T10:14:45

See matching parameters

	Baseline	Candidate
application	insecure-bank	insecure-bank
ci_job_date	1747045297	1747045297
ci_job_id	933093709	933093709
ci_pipeline_id	64761720	64761720
cpu_model	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz
kernel_version	Linux runner-psrqmy6d-project-304-concurrent-0-9oh2exwy 6.8.0-1027-aws #29~22.04.1-Ubuntu SMP Sun Mar 30 07:45:38 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux	Linux runner-psrqmy6d-project-304-concurrent-0-9oh2exwy 6.8.0-1027-aws #29~22.04.1-Ubuntu SMP Sun Mar 30 07:45:38 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
variant	iast	iast

Summary

Found 0 performance improvements and 0 performance regressions! Performance is the same for 12 metrics, 18 unstable metrics.

Request duration reports for insecure-bank

gantt
    title insecure-bank - request duration [CI 0.99] : candidate=1.50.0-SNAPSHOT~276f07a332, baseline=1.50.0-SNAPSHOT~e5785f7306
    dateFormat X
    axisFormat %s
section baseline
no_agent (377.983 µs) : 359, 397
.   : milestone, 378,
iast (522.2 µs) : 499, 545
.   : milestone, 522,
iast_FULL (734.448 µs) : 711, 758
.   : milestone, 734,
iast_GLOBAL (556.935 µs) : 535, 579
.   : milestone, 557,
iast_HARDCODED_SECRET_DISABLED (523.527 µs) : 501, 546
.   : milestone, 524,
iast_INACTIVE (464.11 µs) : 441, 487
.   : milestone, 464,
iast_TELEMETRY_OFF (501.682 µs) : 478, 525
.   : milestone, 502,
tracing (461.51 µs) : 439, 484
.   : milestone, 462,
section candidate
no_agent (382.969 µs) : 363, 403
.   : milestone, 383,
iast (511.167 µs) : 489, 533
.   : milestone, 511,
iast_FULL (729.748 µs) : 708, 752
.   : milestone, 730,
iast_GLOBAL (558.488 µs) : 536, 581
.   : milestone, 558,
iast_HARDCODED_SECRET_DISABLED (522.57 µs) : 499, 546
.   : milestone, 523,
iast_INACTIVE (467.661 µs) : 445, 491
.   : milestone, 468,
iast_TELEMETRY_OFF (510.161 µs) : 487, 533
.   : milestone, 510,
tracing (458.538 µs) : 436, 481
.   : milestone, 459,

Loading

• baseline results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	377.983 µs [358.548 µs, 397.418 µs]	-
iast	522.2 µs [499.447 µs, 544.953 µs]	144.217 µs (38.2%)
iast_FULL	734.448 µs [711.362 µs, 757.533 µs]	356.465 µs (94.3%)
iast_GLOBAL	556.935 µs [535.121 µs, 578.748 µs]	178.952 µs (47.3%)
iast_HARDCODED_SECRET_DISABLED	523.527 µs [500.592 µs, 546.461 µs]	145.544 µs (38.5%)
iast_INACTIVE	464.11 µs [441.404 µs, 486.816 µs]	86.127 µs (22.8%)
iast_TELEMETRY_OFF	501.682 µs [478.236 µs, 525.128 µs]	123.7 µs (32.7%)
tracing	461.51 µs [439.183 µs, 483.838 µs]	83.527 µs (22.1%)

• candidate results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	382.969 µs [362.926 µs, 403.012 µs]	-
iast	511.167 µs [489.4 µs, 532.934 µs]	128.198 µs (33.5%)
iast_FULL	729.748 µs [707.908 µs, 751.588 µs]	346.779 µs (90.6%)
iast_GLOBAL	558.488 µs [536.35 µs, 580.626 µs]	175.519 µs (45.8%)
iast_HARDCODED_SECRET_DISABLED	522.57 µs [499.338 µs, 545.801 µs]	139.601 µs (36.5%)
iast_INACTIVE	467.661 µs [444.633 µs, 490.688 µs]	84.692 µs (22.1%)
iast_TELEMETRY_OFF	510.161 µs [487.382 µs, 532.941 µs]	127.193 µs (33.2%)
tracing	458.538 µs [436.255 µs, 480.82 µs]	75.569 µs (19.7%)

Request duration reports for petclinic

gantt
    title petclinic - request duration [CI 0.99] : candidate=1.50.0-SNAPSHOT~276f07a332, baseline=1.50.0-SNAPSHOT~e5785f7306
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.359 ms) : 1340, 1379
.   : milestone, 1359,
appsec (1.741 ms) : 1718, 1764
.   : milestone, 1741,
appsec_no_iast (1.721 ms) : 1697, 1744
.   : milestone, 1721,
code_origins (1.659 ms) : 1632, 1686
.   : milestone, 1659,
iast (1.494 ms) : 1470, 1518
.   : milestone, 1494,
profiling (1.563 ms) : 1538, 1588
.   : milestone, 1563,
tracing (1.511 ms) : 1487, 1535
.   : milestone, 1511,
section candidate
no_agent (1.367 ms) : 1347, 1386
.   : milestone, 1367,
appsec (1.72 ms) : 1696, 1745
.   : milestone, 1720,
appsec_no_iast (1.727 ms) : 1704, 1750
.   : milestone, 1727,
code_origins (1.669 ms) : 1642, 1696
.   : milestone, 1669,
iast (1.506 ms) : 1482, 1531
.   : milestone, 1506,
profiling (1.565 ms) : 1541, 1589
.   : milestone, 1565,
tracing (1.49 ms) : 1466, 1515
.   : milestone, 1490,

Loading

• baseline results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	1.359 ms [1.34 ms, 1.379 ms]	-
appsec	1.741 ms [1.718 ms, 1.764 ms]	381.769 µs (28.1%)
appsec_no_iast	1.721 ms [1.697 ms, 1.744 ms]	361.136 µs (26.6%)
code_origins	1.659 ms [1.632 ms, 1.686 ms]	299.849 µs (22.1%)
iast	1.494 ms [1.47 ms, 1.518 ms]	134.367 µs (9.9%)
profiling	1.563 ms [1.538 ms, 1.588 ms]	203.461 µs (15.0%)
tracing	1.511 ms [1.487 ms, 1.535 ms]	151.783 µs (11.2%)

• candidate results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	1.367 ms [1.347 ms, 1.386 ms]	-
appsec	1.72 ms [1.696 ms, 1.745 ms]	353.736 µs (25.9%)
appsec_no_iast	1.727 ms [1.704 ms, 1.75 ms]	360.24 µs (26.4%)
code_origins	1.669 ms [1.642 ms, 1.696 ms]	302.413 µs (22.1%)
iast	1.506 ms [1.482 ms, 1.531 ms]	139.773 µs (10.2%)
profiling	1.565 ms [1.541 ms, 1.589 ms]	198.183 µs (14.5%)
tracing	1.49 ms [1.466 ms, 1.515 ms]	123.479 µs (9.0%)

Dacapo