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ci: add nightly system-tests workflow#16560

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nccatoni wants to merge 7 commits intomainfrom
add-nightly-system-tests
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ci: add nightly system-tests workflow#16560
nccatoni wants to merge 7 commits intomainfrom
add-nightly-system-tests

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@nccatoni nccatoni commented Feb 18, 2026

Description

Add a nightly workflow that runs the official system-tests reusable workflow daily at 4 AM GMT. It uses _system_tests_dev_mode to build from the latest commit on the default branch, runs the tracer-release scenarios group, and pushes results to Test Optimization.

This coexists with the existing system-tests.yml workflow which handles PR and push triggers.

Testing

Trigger the workflow manually via workflow_dispatch and verify it completes successfully.

Risks

None. This is an additive change that introduces a new scheduled workflow without modifying existing ones.

Additional Notes

Follows the same pattern used in system-tests-dashboard nightly.

nccatoni and others added 2 commits February 18, 2026 15:15
Run the official system-tests reusable workflow daily at 4 AM GMT
using dev mode against the latest commit on the default branch.

Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
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Codeowners resolved as

.github/workflows/system-tests-nightly.yml                              @DataDog/python-guild @DataDog/apm-core-python

@nccatoni nccatoni changed the title Add nightly system-tests workflow ci: add nightly system-tests workflow Feb 18, 2026
@nccatoni nccatoni added the changelog/no-changelog A changelog entry is not required for this PR. label Feb 18, 2026
nccatoni and others added 5 commits February 18, 2026 15:40
Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
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