setup router python binding ci (#1999)

.github/workflows/release-pypi-router.yml

@@ -0,0 +1,104 @@
+# Reference: https://github.com/openai/tiktoken/blob/63527649963def8c759b0f91f2eb69a40934e468/.github/workflows/build_wheels.yml#L1
+
+name: Release SGLang Router to PyPI
+
+on:
+  workflow_dispatch:
+
+jobs:
+  build:
+    name: Build on ${{ matrix.os }} (${{ matrix.target }})
+    runs-on: ${{ matrix.os }}-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu
+            target: x86_64
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          path: sglang-repo
+
+      - name: Move rust folder to root and delete sglang-repo
+        run: |
+          mv sglang-repo/rust/* .
+          rm -rf sglang-repo
+          ls -alt
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install build dependencies
+        run: |
+          python -m pip install -U pip
+          python -m pip install build twine auditwheel
+
+      - name: Build package
+        uses: pypa/cibuildwheel@v2.21.3
+        env:
+          CIBW_BUILD: "cp38-manylinux_x86_64 cp39-manylinux_x86_64 cp310-manylinux_x86_64 cp311-manylinux_x86_64 cp312-manylinux_x86_64"
+          CIBW_BEFORE_ALL: |
+            yum update && yum install -y openssl-devel && curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+          CIBW_ENVIRONMENT: "PATH=$HOME/.cargo/bin:$PATH"
+
+      - name: List built packages
+        run: ls -lh wheelhouse/
+
+      - name: Check packages
+        run: twine check --strict wheelhouse/*
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: packages-${{ matrix.os }}-${{ matrix.target }}
+          path: wheelhouse/
+
+  build-sdist:
+    name: Build SDist
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          path: sglang-repo
+
+      - name: Move rust folder to root and delete sglang-repo
+        run: |
+          mv sglang-repo/rust/* .
+          rm -rf sglang-repo
+          ls -alt
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Build SDist
+        run: |
+          pip install build
+          python -m build --sdist
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: sdist
+          path: dist/*.tar.gz
+
+  upload:
+    name: Upload to PyPI
+    needs: [build, build-sdist]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          path: dist
+          merge-multiple: true
+
+      - name: Upload to PyPI
+        env:
+          TWINE_USERNAME: __token__
+          TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN }}
+        run: |
+          pip install twine
+          twine upload dist/* --verbose