init rust weblog by Eldolfin · Pull Request #6675 · DataDog/system-tests

Eldolfin · 2026-04-02T11:35:04Z

Motivation

There is no rust weblog yet so it doesn't show in the feature parity dashboard.

At this point, all tests from the TRACE_STATS_COMPUTATION scenario passes. TODO: mark all other endtoend tests as XFAIL in manifest

Changes

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- Test logic is modified? -> Get a review from RFC owner.
- Framework is modified, or non obvious usage of it -> get a review from R&P team

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Reviewer checklist

Anything but tests/ or manifests/ is modified ? I have the approval from R&P team
A docker base image is modified?
- the relevant build-XXX-image label is present
A scenario is added, removed or renamed?
- Get a review from R&P team

- passing all css tests !

github-actions · 2026-04-02T11:35:30Z

CODEOWNERS have been resolved as:

utils/build/docker/rust/axum.Dockerfile                                 @DataDog/apm-rust @DataDog/system-tests-core
utils/build/docker/rust/axum/Cargo.lock                                 @DataDog/apm-rust @DataDog/system-tests-core
utils/build/docker/rust/axum/Cargo.toml                                 @DataDog/apm-rust @DataDog/system-tests-core
utils/build/docker/rust/axum/app.sh                                     @DataDog/apm-rust @DataDog/system-tests-core
utils/build/docker/rust/axum/src/main.rs                                @DataDog/apm-rust @DataDog/system-tests-core
utils/build/docker/rust/axum/system_tests_library_version.sh            @DataDog/apm-rust @DataDog/system-tests-core
.github/workflows/nightly.yml                                           @DataDog/system-tests-core
.gitignore                                                              @DataDog/system-tests-core
manifests/rust.yml                                                      @DataDog/apm-rust
tests/schemas/utils/library/v0.7/config-request.json                    @DataDog/system-tests-core
utils/build/docker/rust/install_ddtrace.sh                              @DataDog/apm-rust @DataDog/system-tests-core

Eldolfin · 2026-04-02T11:37:58Z

@codex review

Copilot

Pull request overview

This PR introduces the initial Rust weblog implementation using the Axum web framework. The weblog is designed to provide OpenTelemetry tracing and metrics support for system tests, addressing the gap where no Rust implementation existed to show in the feature parity dashboard.

Changes:

Implements a new Rust weblog application with Axum framework supporting tracing, metrics, and multiple test endpoints (/, /healthcheck, /stats-unique, /rasp/sqli, /make_distant_call)
Creates Docker build infrastructure with multi-stage Dockerfile and build scripts
Adds "rust" to the supported languages in the library configuration schema
Updates Rust manifest to mark specific tests as irrelevant for the weblog variant

Reviewed changes

Copilot reviewed 7 out of 9 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
utils/build/docker/rust/axum/src/main.rs	Main Rust weblog application with OpenTelemetry integration and various test endpoints
utils/build/docker/rust/axum/Cargo.toml	Rust project manifest with dependencies for Axum, tracing, and OpenTelemetry
utils/build/docker/rust/axum/Cargo.lock	Dependency lock file with all transitive dependencies resolved
utils/build/docker/rust/axum.Dockerfile	Multi-stage Docker build configuration for building and running the weblog
utils/build/docker/rust/axum/app.sh	Entry point script for the container
utils/build/docker/rust/axum/system_tests_library_version.sh	Script to extract library version from Cargo.lock
tests/schemas/utils/library/v0.7/config-request.json	Schema update adding "rust" to supported languages list
manifests/rust.yml	Test manifest update with specific test expectations
.gitignore	Addition of Rust build artifacts to ignore list

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Copilot · 2026-04-02T11:41:02Z

utils/build/docker/rust/axum/Cargo.toml

+opentelemetry = "0.31.0"
+serde = { version = "1.0.228", features = ["derive"] }
+serde_json = { version = "1.0" }
+reqwest = { version = "0.12", default-features = false }


The reqwest dependency is configured with default-features = false, which disables essential features like TLS support. This will cause the make_distant_call endpoint (which attempts to make HTTP requests) to fail at runtime. Either enable default features or explicitly enable required features like rustls-tls or native-tls.

Suggested change

reqwest = { version = "0.12", default-features = false }

reqwest = { version = "0.12", default-features = false, features = ["rustls-tls"] }

Copilot · 2026-04-02T11:41:02Z

utils/build/docker/rust/axum/system_tests_library_version.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+grep 'name = "datadog-opentelemetry"' ./Cargo.lock -A 1 | grep -Po 'version = "\K.*?(?=")'


The system_tests_library_version.sh script uses grep -P (Perl-compatible regular expressions), which may not be available in the minimal Debian-based image. The -P flag requires grep to be compiled with PCRE support, which is not guaranteed in slim images. Consider using a more portable approach with standard grep flags or sed.

Suggested change

grep 'name = "datadog-opentelemetry"' ./Cargo.lock -A 1 | grep -Po 'version = "\K.*?(?=")'

grep 'name = "datadog-opentelemetry"' ./Cargo.lock -A 1 | grep 'version = "' | head -n1 | sed -E 's/.*version = "([^"]+)".*/\1/'

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chatgpt-codex-connector · 2026-04-02T11:42:02Z

utils/build/docker/rust/axum.Dockerfile

+libdd-trace-utils  = { path = "/binaries/libdatadog/libdd-trace-utils" }
+libdd-common       = { path = "/binaries/libdatadog/libdd-common" }
+libdd-tinybytes    = { path = "/binaries/libdatadog/libdd-tinybytes" }
+libdd-telemetry    = { path = "/binaries/libdatadog/libdd-telemetry" }


Guard libdatadog patch paths before cargo build

Do not unconditionally patch crates.io to /binaries/libdatadog/* here, because those directories are not present in the normal system-tests build flow (the repo’s binaries/ is typically empty aside from helper files, and Rust dev setup uses rust-load-from-git/dd-trace-rs instead). With these lines present, cargo fails dependency resolution immediately with “failed to read .../Cargo.toml”, so the new rust/axum weblog image cannot build in default CI/local runs.

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datadog-datadog-prod-us1-2 · 2026-04-02T14:07:25Z

⚠️ Tests

✨ Fix all issues with BitsAI or with Cursor

⚠️ Warnings

🧪 1092 Tests failed

tests.ai_guard.test_ai_guard_sdk.Test_ContentParts.test_content_parts[axum] from system_tests_suite

(Fix with Cursor)

AssertionError: assert 404 == 200
 +  where 404 = HttpResponse(status_code:404, headers:{'content-length': '0', 'date': 'Fri, 03 Apr 2026 14:49:03 GMT'}, text:).status_code
 +    where HttpResponse(status_code:404, headers:{'content-length': '0', 'date': 'Fri, 03 Apr 2026 14:49:03 GMT'}, text:) = <tests.ai_guard.test_ai_guard_sdk.Test_ContentParts object at 0x7f8b47db47a0>.r

self = <tests.ai_guard.test_ai_guard_sdk.Test_ContentParts object at 0x7f8b47db47a0>

    def test_content_parts(self):
        """Test AI Guard evaluation with multi-modal content parts.
    
        Validates that prompts with content part format (text + image_url) are:
...

tests.ai_guard.test_ai_guard_sdk.Test_Evaluation.test_abort[axum] from system_tests_suite

(Fix with Cursor)

assert False

self = <tests.ai_guard.test_ai_guard_sdk.Test_Evaluation object at 0x7f8b47db4200>

    def test_abort(self):
        """Test ABORT action for tool call attempting to read /etc/passwd.
        Expects 403 when blocking enabled, 200 when disabled.
        Span should have action="ABORT" and target="tool" with tool_name.
        """
        for block, request in self.r.items():
...

tests.ai_guard.test_ai_guard_sdk.Test_Evaluation.test_allow[axum] from system_tests_suite

(Fix with Cursor)

AssertionError: assert 404 == 200
 +  where 404 = HttpResponse(status_code:404, headers:{'content-length': '0', 'date': 'Fri, 03 Apr 2026 14:49:03 GMT'}, text:).status_code

self = <tests.ai_guard.test_ai_guard_sdk.Test_Evaluation object at 0x7f8b47d83ec0>

    def test_allow(self):
        """Test ALLOW action for benign weather question.
        Expects 200 status code and span with action="ALLOW" both with blocking enabled and disabled
        """
        for block, request in self.r.items():
...

View all

ℹ️ Info

No other issues found (see more)

❄️ No new flaky tests detected

_{This comment will be updated automatically if new data arrives.

🔗 Commit SHA: 8467b2b | Docs | Datadog PR Page | Was this helpful? React with 👍/👎 or give us feedback!}

Eldolfin added 2 commits April 1, 2026 19:51

wip rust weblog

34b6b4c

feat: implement rasp_sqli and make_distant_call in rust weblog

744e9c9

- passing all css tests !

Eldolfin changed the title ~~wip rust weblog~~ init rust weblog Apr 2, 2026

Eldolfin requested a review from Copilot April 2, 2026 11:37

Copilot started reviewing on behalf of Eldolfin April 2, 2026 11:38 View session

Copilot AI reviewed Apr 2, 2026

View reviewed changes

chatgpt-codex-connector bot reviewed Apr 2, 2026

View reviewed changes

feat: add rust to nightly.yml sdk list

c8d7dcd

fix: remove use of local binary/ paths

8467b2b

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init rust weblog#6675

init rust weblog#6675
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	reqwest = { version = "0.12", default-features = false }
	reqwest = { version = "0.12", default-features = false, features = ["rustls-tls"] }

		@@ -0,0 +1,2 @@
		#!/bin/bash
		grep 'name = "datadog-opentelemetry"' ./Cargo.lock -A 1 \| grep -Po 'version = "\K.*?(?=")'

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