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test(deploy): share chat and embedding API coverage - #14681
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Signed-off-by: xianlubird <xianlubird@gmail.com>
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WalkthroughThe pull request adds SGLang embedding health checks, an aggregated embedding deployment template, shared deployment API validation, endpoint-specific readiness payloads, and frontend image propagation through pull request and nightly workflows. ChangesEmbedding deployment coverage
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🟡 Moderate · up to Deployment coverage can validate the wrong route and misclassify API behavior, reducing confidence in supported chat deployments. Resolve these test-contract defects before merge. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 41.38% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 29 functions across 11 files. (5 skipped: 5 unsupported.)
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In `@tests/deploy/dgd_utils.py`:
- Around line 104-105: Update the minimum-content-length validation following
the content normalization so it runs only when stop is None; preserve suppressed
prefix-stop responses normalized to an empty string without applying
min_content_length.
In `@tests/deploy/response_checks.py`:
- Line 57: Update the SSE validation around the response-line assertion to parse
the event value after the colon, allowing an optional single space, and reject
both `event:error` and `event: error`. Extend the stream regression test to
cover the no-space form.
In `@tests/deploy/test_dgd.py`:
- Around line 223-227: Update test_deployment and check_deployment_api to accept
and propagate deployment_spec.endpoint, using the configured endpoint for chat
requests instead of hardcoding /v1/chat/completions while preserving existing
behavior for the default endpoint.
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📒 Files selected for processing (16)
.github/workflows/nightly-ci.yml.github/workflows/pr.yaml.github/workflows/shared-deploy-test.ymlcomponents/src/dynamo/sglang/health_check.pycomponents/src/dynamo/sglang/init_embedding.pycomponents/src/dynamo/sglang/tests/test_sglang_embedding_inputs.pycomponents/src/dynamo/sglang/tests/test_sglang_health_check.pydocs/fern/pages/recipes/kubernetes-templates/dgd/sglang.mdxexamples/backends/sglang/deploy/agg_embed.yamltests/deploy/api_checks.pytests/deploy/conftest.pytests/deploy/dgd_utils.pytests/deploy/response_checks.pytests/deploy/test_api_checks.pytests/deploy/test_dgd.pytests/utils/client.py
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Signed-off-by: xianlubird <xianlubird@gmail.com>
Signed-off-by: xianlubird <xianlubird@gmail.com>
Signed-off-by: xianlubird <xianlubird@gmail.com>
harryskim
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Docs-only pass (the .mdx page plus the new agg_embed.yaml it embeds). None of this is blocking — the embed path resolves, the file exists, placement/formatting match the sibling accordions, and this page is the only index of SGLang DGD templates so nothing else went stale. Just a few things that would be nice to tidy up.
One more that I couldn't anchor inline since the file isn't in this diff: examples/backends/sglang/deploy/README.md lists only agg, agg_router, and disagg under "Available Deployment Patterns". agg_gms and agg_logging are already missing, so this is pre-existing drift rather than something this PR introduced — fine to leave, but adding agg_embed.yaml there would be a nice bonus.
Note I only reviewed the docs surface here — the test and CI changes are unreviewed by me.
dmitry-tokarev-nv
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Re-review at 63b35df3551e
Approved. The earlier approval pointed at a tree that the merge replaced, so I read this one as a new change.
The push was additive, and the merge needed a hand resolution.
The head moved from 6bb4ca1c3911 to 63b35df3551e. The compare API reports 35 commits ahead and 0 behind. 34 of them come from main, and the last one is the merge. The only force-push on this branch happened on 2026-09-11, long before the approval, so the staleness is an ordinary later push.
The merge was not free. git merge-tree --write-tree reproduces a real content conflict in tests/deploy/test_dgd.py, which you resolved by hand. I diffed the resolution against both sides. It is exactly the union of the two. The capture_failure machinery that arrived from main is complete, and the endpoint and checker selection from this branch is complete.
No file that this branch owns moved on main between the merge base and the current main tip e5394022b67f. Merging that tip into this head is clean, so no finding here depends on drifted files.
Four checks on the new tree, each with a control.
The typed return value still needs both files together. I ran the real _request from tests/deploy/test_kvcr_guard.py against four trees. The control reads the model name through the helper and returns the same value every time.
| helper tree | caller tree | result |
|---|---|---|
main e5394022b6 |
main | pass, 'HELLO-CONTROL-TEXT' |
head 63b35df355 |
head | pass, 'HELLO-CONTROL-TEXT' |
head 63b35df355 |
main | TypeError: 'ChatCompletion' object is not subscriptable |
main e5394022b6 |
head | AttributeError: 'dict' object has no attribute 'choices' |
The helper unit tests pass. tests/deploy/test_api_checks.py gives 45 passed under the exact core CPU selector, pre_merge and (parallel or defaulted) and not (vllm or sglang or trtllm) and (gpu_0).
The new profile is reachable from the command the workflow builds. --framework=sglang --profile=agg_embed -m framework_only collects the same two cases as agg, and a made-up profile name collects nothing.
Live cover is real, not skipped. All nine deploy jobs report success at 63b35df3551e, including sglang Deploy Test / agg_embed, and frontend / Copy to ACR cuda, amd64 succeeded, so the frontend image reached the tests.
Three ideas I dropped after measuring them.
Strict schema checks do not reject an integer where a float is expected. A JSON 0 inside an embedding vector passes CreateEmbeddingResponse.model_validate(body, strict=True), and a vendor field such as nvext passes too.
The new --frontend-image write in tests/deploy/conftest.py does not collide with the two older readers. test_dynamocheckpoint.py uses FRONTEND_COMPONENT = "Frontend", which is the same target and the same value. The GAIE test builds its own DeploymentSpec and never takes the fixture. All eleven wired profiles carry exactly one component named Frontend.
The extra fault_tolerance marker on components/src/dynamo/sglang/tests/test_sglang_health_check.py does not drop the file from a lane. No marker selector in .github/ reads that name, and the sglang CPU lane selects on pre_merge and sglang and gpu_0.
This round is partly self-review.
Commit 6bb4ca1c391189e6046181d8e1eb943b6d799e71 applies the change I wrote in my earlier P1 comment on tests/deploy/dgd_utils.py. A later reviewer must read this approval with that in mind.
Open and non-blocking: one P3 from me on the streaming retry gap, and three nits from harryskim on the docs title, the model name, and the component name.
Where I stopped: I did not run a live deployment. Two claims stay unmeasured here and rest on CI instead. The first is that the two chat requests stay token-for-token identical, which the stop-prefix check needs. The second is the numeric tolerance between the batch and unary embeddings. The nine green deploy jobs at this head cover both in practice.
Signed-off-by: xianlubird <xianlubird@gmail.com>
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dmitry-tokarev-nv
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I re-approve at b955b605f2f6ad99cf95728ea27f3cc428b63e1b. I found no new defects.
The head is 23 commits ahead of my last approval at 63b35df355, but only one of those commits is yours. Main supplied 21, and the last one is the merge. Across the 17 files of this pull request, the only content change since the approved tree is 3 files, +46/-9. That is d8fe62d448.
I re-read d8fe62d448 and the merge. I carried the other 14 files forward on the earlier approval, because they are byte-identical to the tree I approved.
You wrote on tests/deploy/api_checks.py that the retry helper now buffers the body inside its retry boundary, and that d8fe62d448 adds regression coverage. I tested that claim by execution. The new test fails against the old helper and passes against the new one, so it pins the fix.
The three red DGDR Deploy Test / CPU lanes come from main, not from your change. You do not have to act on them.
Your one commit versus main's 21, and the merge redone from scratch
$ git rev-list --count 63b35df355..b955b605f2 -> 23
$ git rev-list --count 63b35df355..d8fe62d448 -> 1 (yours)
$ git rev-list --count d8fe62d448..843d92a7e4 -> 21 (main)
+ 1 merge -> 23
The merge b955b605f2 has parents d8fe62d448 and 843d92a7e4. I redid it:
$ git merge-tree --write-tree d8fe62d448 843d92a7e4 | head -1
6b81181b8ccc93c40b266ca10aa61d40215fe5f6
$ git rev-parse b955b605f2^{tree}
6b81181b8ccc93c40b266ca10aa61d40215fe5f6
The committed tree equals the automatic tree, so no file was hand-resolved. Your side and main's side share no file: your side touches 17, main's side touches 131, and the overlap is 0.
Content change since the approved tree, restricted to the 17 files:
docs/fern/pages/recipes/kubernetes-templates/dgd/sglang.mdx | 4 ++-
tests/deploy/dgd_utils.py | 17 ++++++-----
tests/deploy/test_dgd_utils.py | 34 +++++++++++++++++++++-
3 files changed, 46 insertions(+), 9 deletions(-)
Push shape: appends only, and all three approved commits are still ancestors
The timeline holds one head_ref_force_pushed event, dated 2026-09-11T01:49:30Z. That is six days before the first approval, so nothing was rewritten under any of them.
26544671a19283e01655843c97f6f0c2ce9cdd37 merge-base --is-ancestor -> 0
6bb4ca1c391189e6046181d8e1eb943b6d799e71 merge-base --is-ancestor -> 0
63b35df3551e276b9eb839fe6c23af421da03751 merge-base --is-ancestor -> 0
Because nothing was rewritten, I did not need git patch-id --stable to separate a replay from new content. The clone is not shallow, so the ancestry above is trustworthy.
File counts agree between the API and a local three-dot diff: 17 files and +965/-90 both ways.
Regression test measured on both trees
I restored tests/deploy/dgd_utils.py from my last approved commit 63b35df355. Then I ran the new test with an older sibling as a control.
| tree | ..._after_stream_body_failure |
control ..._after_transport_failure |
|---|---|---|
head b955b605f2 |
passed | passed (2 cases) |
dgd_utils.py from 63b35df355 |
failed | passed (2 cases) |
The failure on the old helper is the defect itself:
tests/deploy/test_dgd_utils.py:205: AssertionError
> assert result is response
E AssertionError: assert <MagicMock spec='Response' id='4547194192'>
is <MagicMock spec='Response' id='4543017904'>
The old helper returned the dropped response. The new one replays the request and returns the good one.
Checksums of tests/deploy/dgd_utils.py:
head 921b9b7b94b142771ce2fcc11a6cac335c266df02e2d36a20815b29587bda969
pre-fix c2c20b413945542edc2446e5cf36ad3dbdd63bbe50e74af8cee48b17aa07db2a
restored 921b9b7b94b142771ce2fcc11a6cac335c266df02e2d36a20815b29587bda969
I also checked the widened except. The catch moved from three exception types to requests.RequestException, which is wider. It does not swallow an HTTP status error, because send_request in tests/utils/client.py never calls raise_for_status(). The status check happens in _request in tests/deploy/api_checks.py, outside the retry boundary. The widening is also needed, because a dropped body raises requests.ChunkedEncodingError, which is not a ConnectionError.
Declared versus executed, both API surfaces
Both surfaces ran on this head, and both ran the same shape.
| lane | collected | deselected | selected | passed | skipped |
|---|---|---|---|---|---|
sglang Deploy Test / agg (chat) |
3 | 1 | 2 | 1 | 1 |
sglang Deploy Test / agg_embed (embedding) |
3 | 1 | 2 | 1 | 1 |
The one skip is the same case on both sides, [...-discovery-failure], with the reason Failure snapshot coverage uses only the vLLM agg deployment. It is symmetric, so sharing the helper did not drop a case from one surface.
Neither log contains FileNotFoundError, so no test reads a repository file that is missing at run time.
For the helper unit tests I ran the real lane expressions on the head tree, with a wrong-lane negative control:
| target | declared | parallel lane | sequential lane | sglang lane (negative control) |
|---|---|---|---|---|
tests/deploy/test_api_checks.py |
45 | 45 | 0 | 0 |
tests/deploy/test_dgd_utils.py |
17 | 0 | 17 | 0 |
The parallel lane count of 45 matches the same job log on this head. Of those 45, 17 cases are embedding-side and 28 are chat-side, so both surfaces keep real coverage. tests/deploy/test_dgd.py declares 69 cases and 68 are selected by -m framework_only.
I first read 0 hits for test_dgd_utils in the sequential job log and suspected the new test never runs. That log has no summary line, so it was truncated. The measurement above retracts that.
The red deploy lanes were green on your two previous heads
| head | DGDR Deploy Test / CPU / validation |
|---|---|
63b35df355 (my last approval) |
success |
d8fe62d448 (your new commit) |
success |
b955b605f2 (after the merge of main) |
failure |
The red arrived with the merge of main, not with your work. The failing file, tests/deploy/test_dgdr.py, is not among the 17 files here, and the rejection is an operator admission rule about the image tag:
admission webhook "vdynamographdeploymentrequest.kb.io" denied the request:
spec.runtimeVersionOverride: Required value: is required when spec.image has
no parseable semantic-version tag
I merged the current base tip 6e21a3a646308250fe9c6ba2f4775f6301884eb1 myself. It merges clean, and none of your 17 files drifted on main since the merge base, so no conclusion above rests on a drifted file.
Approval timestamps against the committer date of the commit each one names
| review | reviewer | commit | committed (UTC) | submitted (UTC) | order |
|---|---|---|---|---|---|
| 5242190481 | dmitry-tokarev-nv | 26544671a1 |
2026-09-17T01:50:08Z | 2026-09-17T22:49:48Z | after |
| 5244094121 | dmitry-tokarev-nv | 6bb4ca1c39 |
2026-09-18T03:40:40Z | 2026-09-18T03:56:48Z | after |
| 5253807570 | tmonty12 | 6bb4ca1c39 |
2026-09-18T03:40:40Z | 2026-09-19T00:42:04Z | after |
| 5270218452 | dmitry-tokarev-nv | 63b35df355 |
2026-09-20T01:06:50Z | 2026-09-21T18:14:59Z | after |
No standing approval predates the commit it names.
One dismissed review, 5243392795, does appear to predate its commit by 68 minutes. That is the known re-pointing effect and not a real inversion. It was submitted against 94537304f1, which was committed 18 minutes earlier. GitHub then moved it onto the merge commit 827833a214, which was committed later. It was dismissed for exactly that reason on 2026-09-18T03:11:08Z.
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dmitry-tokarev-nv
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I approve 1df3b85953e7d7583d717c26c9ad4e378bfb4b28. The only change since my last approval is the "Update branch" merge of main. That merge does not change any of the 17 files in this pull request.
GitHub moved my earlier approval onto this commit. I wrote that approval for b955b605f2, 31 minutes before this merge existed. This approval is for the tree that I read now.
What I tested:
- The 17 files are byte-identical to
b955b605f2. My own redo of the merge gives the same tree that GitHub committed. - CI on this commit passed both API surfaces:
sglang Deploy Test / aggfor chat andsglang Deploy Test / agg_embedfor embeddings. The new unit tests ran and passed. - The current
maintip,a83ba19b4e, merges clean into this head. Since my last approval,mainadded no caller of the helpers that this pull request changes. The deploy unit tests pass on that merge with the same counts as before.
Not re-run: the Kubernetes deploy lanes against the main tip. CI ran them on this commit.
Open items: none.
Signed-off-by: xianlubird <xianlubird@gmail.com>
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✅ Dynamo PR CI passed — run 37868626362 (attempt 1) on
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harryskim
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Docs-only review: LGTM. The new accordion's <Code src> path resolves, it sits in the right section, and the model note is accurate (the local launch script defaults to Qwen3-Embedding-4B).
All inline comments are optional nits and non-blocking, so feel free to take or leave them.
One more optional item outside the diff: examples/backends/sglang/deploy/README.md ("Available Deployment Patterns") doesn't list agg_embed.yaml. That list is already missing agg_gms, agg_logging and disagg_planner too, so this is fine as a follow-up.
jthomson04
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No blocking issues found in the source review. One non-blocking retry issue is noted inline. Tests were not run and CI was not evaluated.
Signed-off-by: xianlubird <xianlubird@gmail.com>
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Signed-off-by: xianlubird <xianlubird@gmail.com>
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Summary
Ordinary deploy tests currently use the worker runtime image for the Frontend and only check a unary chat request. Pass the standalone frontend image through the PR/nightly workflows and a dedicated action input, add the SGLang
agg_embeddeployment profile, and share API checks across deployment and compatibility tests.No N-2 matrix or historical image resolution is introduced here; #14460 will consume the shared helpers.
Where should the reviewer start?
Start with
tests/deploy/api_checks.pyandtests/deploy/response_checks.py, then the selection and retry wiring intests/deploy/test_dgd.py. The workflow-to-action image interface is in.github/workflows/shared-deploy-test.ymland.github/actions/dynamo-deploy-test/action.yml.Related Issues
Fixes #15864. Part of #14685. Supersedes #14680 and provides shared coverage for #14460.
Validation
tests/deploy/test_api_checks.pyandtests/deploy/test_dgd_utils.py, with the repository conftest.Summary by CodeRabbit
New Features
Documentation
Tests