feat: add DBOS integration for durable Agent execution

.github/labeler.yml

@@ -99,6 +99,11 @@ integration:datadog:
       - any-glob-to-any-file: "integrations/datadog/**/*"
       - any-glob-to-any-file: ".github/workflows/datadog.yml"
 
+integration:dbos:
+  - changed-files:
+      - any-glob-to-any-file: "integrations/dbos/**/*"
+      - any-glob-to-any-file: ".github/workflows/dbos.yml"
+
 integration:ddgs:
   - changed-files:
       - any-glob-to-any-file: "integrations/ddgs/**/*"

.github/workflows/CI_coverage_comment.yml

@@ -23,6 +23,7 @@ on:
       - "Test / cohere"
       - "Test / cometapi"
       - "Test / datadog"
+      - "Test / dbos"
       - "Test / ddgs"
       - "Test / deepeval"
       - "Test / docling"

.github/workflows/dbos.yml

@@ -0,0 +1,130 @@
+# This workflow comes from https://github.com/ofek/hatch-mypyc
+# https://github.com/ofek/hatch-mypyc/blob/5a198c0ba8660494d02716cfc9d79ce4adfb1442/.github/workflows/test.yml
+name: Test / dbos
+
+on:
+  schedule:
+    - cron: "0 0 * * *"
+  pull_request:
+    paths:
+      - "integrations/dbos/**"
+      - "!integrations/dbos/*.md"
+      - ".github/workflows/dbos.yml"
+  push:
+    branches:
+      - main
+    paths:
+      - "integrations/dbos/**"
+      - "!integrations/dbos/*.md"
+      - ".github/workflows/dbos.yml"
+
+defaults:
+  run:
+    working-directory: integrations/dbos
+
+concurrency:
+  group: dbos-${{ github.head_ref || github.sha }}
+  cancel-in-progress: true
+
+env:
+  PYTHONUNBUFFERED: "1"
+  FORCE_COLOR: "1"
+  TEST_MATRIX_OS: '["ubuntu-latest", "windows-latest", "macos-latest"]'
+  TEST_MATRIX_PYTHON: '["3.10", "3.14"]'
+
+jobs:
+  compute-test-matrix:
+    runs-on: ubuntu-slim
+    defaults:
+      run:
+        working-directory: .
+    outputs:
+      os: ${{ steps.set.outputs.os }}
+      python-version: ${{ steps.set.outputs.python-version }}
+    steps:
+      - id: set
+        run: |
+          echo 'os=${{ github.event_name == 'push' && '["ubuntu-latest"]' || env.TEST_MATRIX_OS }}' >> "$GITHUB_OUTPUT"
+          echo 'python-version=${{ github.event_name == 'push' && '["3.10"]' || env.TEST_MATRIX_PYTHON }}' >> "$GITHUB_OUTPUT"
+
+  run:
+    name: Python ${{ matrix.python-version }} on ${{ startsWith(matrix.os, 'macos-') && 'macOS' || startsWith(matrix.os, 'windows-') && 'Windows' || 'Linux' }}
+    needs: compute-test-matrix
+    permissions:
+      contents: write
+      pull-requests: write
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: ${{ fromJSON(needs.compute-test-matrix.outputs.os) }}
+        python-version: ${{ fromJSON(needs.compute-test-matrix.outputs.python-version) }}
+
+    steps:
+      - name: Support longpaths
+        if: matrix.os == 'windows-latest'
+        working-directory: .
+        run: git config --system core.longpaths true
+
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install Hatch
+        run: |
+          python -m pip install --upgrade pip
+          pip install hatch --uploaded-prior-to=P1D
+      - name: Lint
+        if: matrix.python-version == '3.10' && runner.os == 'Linux'
+        run: hatch run fmt-check && hatch run test:types
+
+      - name: Run unit tests
+        run: hatch run test:unit-cov-retry
+
+      # On PR: posts coverage comment (directly on same-repo PRs; via artifact for fork PRs). On push to main: stores coverage baseline on data branch.
+      - name: Store unit tests coverage
+        id: coverage_comment
+        if: matrix.python-version == '3.10' && runner.os == 'Linux' && github.event_name != 'schedule'
+        uses: py-cov-action/python-coverage-comment-action@a05be3d2e8a6272d3ef5fb2840ab20368bb2eb71 # v4.3
+        with:
+          GITHUB_TOKEN: ${{ github.token }}
+          COVERAGE_PATH: integrations/dbos
+          SUBPROJECT_ID: dbos
+          MINIMUM_GREEN: 90
+          MINIMUM_ORANGE: 60
+
+      - name: Upload coverage comment to be posted
+        if: matrix.python-version == '3.10' && runner.os == 'Linux' && github.event_name == 'pull_request' && steps.coverage_comment.outputs.COMMENT_FILE_WRITTEN == 'true'
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        with:
+          name: coverage-comment-dbos
+          path: python-coverage-comment-action-dbos.txt
+
+      # No integration tests yet — the whole suite runs against in-process SQLite, so no service or secret is needed.
+      # Add integration-cov-append-retry + the combined coverage step when Postgres-backed tests land.
+
+      - name: Run unit tests with lowest direct dependencies
+        if: github.event_name != 'push'
+        run: |
+          hatch run uv pip compile pyproject.toml --resolution lowest-direct --output-file requirements_lowest_direct.txt
+          hatch -e test env run -- uv pip install -r requirements_lowest_direct.txt
+          hatch run test:unit
+
+      - name: Nightly - run unit tests with Haystack main branch
+        if: github.event_name == 'schedule'
+        run: |
+          hatch env prune
+          hatch -e test env run -- uv pip install git+https://github.com/deepset-ai/haystack.git@main
+          hatch run test:unit
+
+  notify-slack-on-failure:
+    needs: run
+    if: failure() && github.event_name == 'schedule'
+    runs-on: ubuntu-slim
+    steps:
+      - uses: deepset-ai/notify-slack-action@a65def0c8bf91d6520286ab34280151c76a5a008 # v1.1.0
+        with:
+          slack-webhook-url: ${{ secrets.SLACK_WEBHOOK_URL_NOTIFICATIONS }}

README.md

@@ -45,6 +45,7 @@ Please check out our [Contribution Guidelines](CONTRIBUTING.md) for all the deta
 | [cohere-haystack](integrations/cohere/)                                 | Embedder, Generator, Ranker | [![PyPI - Version](https://img.shields.io/pypi/v/cohere-haystack.svg)](https://pypi.org/project/cohere-haystack)                                         | [![Test / cohere](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/cohere.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/cohere.yml)                                                 | [![Coverage badge](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/deepset-ai/haystack-core-integrations/python-coverage-comment-action-data-cohere/endpoint.json&label=)](https://htmlpreview.github.io/?https://github.com/deepset-ai/haystack-core-integrations/blob/python-coverage-comment-action-data-cohere/htmlcov/index.html) | [![Coverage badge](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/deepset-ai/haystack-core-integrations/python-coverage-comment-action-data-cohere-combined/endpoint.json&label=)](https://htmlpreview.github.io/?https://github.com/deepset-ai/haystack-core-integrations/blob/python-coverage-comment-action-data-cohere-combined/htmlcov/index.html) |
 | [cometapi-haystack](integrations/cometapi/)                             | Generator | [![PyPI - Version](https://img.shields.io/pypi/v/cometapi-haystack.svg)](https://pypi.org/project/cometapi-haystack)                                     | [![Test / cometapi](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/cometapi.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/cometapi.yml)                                           | [![Coverage badge](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/deepset-ai/haystack-core-integrations/python-coverage-comment-action-data-cometapi/endpoint.json&label=)](https://htmlpreview.github.io/?https://github.com/deepset-ai/haystack-core-integrations/blob/python-coverage-comment-action-data-cometapi/htmlcov/index.html) | [![Coverage badge](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/deepset-ai/haystack-core-integrations/python-coverage-comment-action-data-cometapi-combined/endpoint.json&label=)](https://htmlpreview.github.io/?https://github.com/deepset-ai/haystack-core-integrations/blob/python-coverage-comment-action-data-cometapi-combined/htmlcov/index.html) |
 | [datadog-haystack](integrations/datadog/) | Tracer | [![PyPI - Version](https://img.shields.io/pypi/v/datadog-haystack.svg)](https://pypi.org/project/datadog-haystack) | [![Test / datadog](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/datadog.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/datadog.yml) | [![Coverage badge](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/deepset-ai/haystack-core-integrations/python-coverage-comment-action-data-datadog/endpoint.json&label=)](https://htmlpreview.github.io/?https://github.com/deepset-ai/haystack-core-integrations/blob/python-coverage-comment-action-data-datadog/htmlcov/index.html) | [![Coverage badge](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/deepset-ai/haystack-core-integrations/python-coverage-comment-action-data-datadog-combined/endpoint.json&label=)](https://htmlpreview.github.io/?https://github.com/deepset-ai/haystack-core-integrations/blob/python-coverage-comment-action-data-datadog-combined/htmlcov/index.html) |
+| [dbos-haystack](integrations/dbos/) | Agents | [![PyPI - Version](https://img.shields.io/pypi/v/dbos-haystack.svg)](https://pypi.org/project/dbos-haystack) | [![Test / dbos](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/dbos.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/dbos.yml) | [![Coverage badge](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/deepset-ai/haystack-core-integrations/python-coverage-comment-action-data-dbos/endpoint.json&label=)](https://htmlpreview.github.io/?https://github.com/deepset-ai/haystack-core-integrations/blob/python-coverage-comment-action-data-dbos/htmlcov/index.html) | [![Coverage badge](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/deepset-ai/haystack-core-integrations/python-coverage-comment-action-data-dbos-combined/endpoint.json&label=)](https://htmlpreview.github.io/?https://github.com/deepset-ai/haystack-core-integrations/blob/python-coverage-comment-action-data-dbos-combined/htmlcov/index.html) |
 | [ddgs-haystack](integrations/ddgs/) | Websearch | [![PyPI - Version](https://img.shields.io/pypi/v/ddgs-haystack.svg)](https://pypi.org/project/ddgs-haystack) | [![Test / ddgs](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/ddgs.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/ddgs.yml) | [![Coverage badge](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/deepset-ai/haystack-core-integrations/python-coverage-comment-action-data-ddgs/endpoint.json&label=)](https://htmlpreview.github.io/?https://github.com/deepset-ai/haystack-core-integrations/blob/python-coverage-comment-action-data-ddgs/htmlcov/index.html) | [![Coverage badge](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/deepset-ai/haystack-core-integrations/python-coverage-comment-action-data-ddgs-combined/endpoint.json&label=)](https://htmlpreview.github.io/?https://github.com/deepset-ai/haystack-core-integrations/blob/python-coverage-comment-action-data-ddgs-combined/htmlcov/index.html) |
 | [deepeval-haystack](integrations/deepeval/)                             | Evaluator                   | [![PyPI - Version](https://img.shields.io/pypi/v/deepeval-haystack.svg)](https://pypi.org/project/deepeval-haystack)                                     | [![Test / deepeval](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/deepeval.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/deepeval.yml)                                           | [![Coverage badge](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/deepset-ai/haystack-core-integrations/python-coverage-comment-action-data-deepeval/endpoint.json&label=)](https://htmlpreview.github.io/?https://github.com/deepset-ai/haystack-core-integrations/blob/python-coverage-comment-action-data-deepeval/htmlcov/index.html) | [![Coverage badge](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/deepset-ai/haystack-core-integrations/python-coverage-comment-action-data-deepeval-combined/endpoint.json&label=)](https://htmlpreview.github.io/?https://github.com/deepset-ai/haystack-core-integrations/blob/python-coverage-comment-action-data-deepeval-combined/htmlcov/index.html) |
 | [docling-haystack](integrations/docling/)                               | Converter | [![PyPI - Version](https://img.shields.io/pypi/v/docling-haystack.svg)](https://pypi.org/project/docling-haystack)                                       | [![Test / docling](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/docling.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/docling.yml)                                              | [![Coverage badge](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/deepset-ai/haystack-core-integrations/python-coverage-comment-action-data-docling/endpoint.json&label=)](https://htmlpreview.github.io/?https://github.com/deepset-ai/haystack-core-integrations/blob/python-coverage-comment-action-data-docling/htmlcov/index.html) | [![Coverage badge](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/deepset-ai/haystack-core-integrations/python-coverage-comment-action-data-docling-combined/endpoint.json&label=)](https://htmlpreview.github.io/?https://github.com/deepset-ai/haystack-core-integrations/blob/python-coverage-comment-action-data-docling-combined/htmlcov/index.html) |