Add a pre-release build test in actions.

Signed-off-by: Matt Hooks <mhooks@rippling.com>

.github/workflows/test.yml

@@ -65,3 +65,27 @@ jobs:
         with:
           command: clippy
           args: -- -D warnings
+
+  test_manylinux_release:
+      name: Test manylinux release build
+      runs-on: ubuntu-latest
+      strategy:
+        matrix:
+          python-path: ['cp37-cp37m', 'cp38-cp38', 'cp39-cp39', 'cp310-cp310', 'cp311-cp311']
+      container: quay.io/pypa/manylinux_2_28_x86_64:latest
+      steps:
+        - uses: actions/checkout@v2
+        - uses: actions-rs/toolchain@v1
+          with:
+            profile: minimal
+            toolchain: stable
+            override: true
+            target: x86_64-unknown-linux-gnu
+        - run: yum makecache && yum -y install libffi-devel openssl-devel
+        - run: /opt/python/${{ matrix.python-path }}/bin/python -m venv .venv
+        - run: .venv/bin/pip install -U pip wheel
+        - run: .venv/bin/pip install -U twine maturin
+        - run: .venv/bin/pip install -r requirements.txt
+        - run: OPENSSL_STATIC=1 .venv/bin/maturin build --release --strip --manylinux 2_28 -i /opt/python/${{ matrix.python-path }}/bin/python --target x86_64-unknown-linux-gnu
+        - run: .venv/bin/pip install rfernet --no-index -f target/wheels
+        - run: .venv/bin/pytest