Add sequential-running test suites CI workflow on IRIS

Author: yousefmoazzam

.github/workflows/iris.yml

@@ -0,0 +1,56 @@
+name: Tests on IRIS
+
+on:
+  pull_request:
+    branches:
+      - main
+  push:
+    branches:
+      - main
+
+jobs:
+  iris-gpu:
+    runs-on: iris-gpu
+    container:
+      image: nvidia/cuda:12.6.3-devel-ubi8
+      env:
+        NVIDIA_VISIBLE_DEVICES: ${{ env.NVIDIA_VISIBLE_DEVICES }}
+
+    defaults:
+      run:
+        shell: bash -l {0}
+
+    steps:
+      - name: Checkout repository code
+        uses: actions/checkout@v4
+
+      - name: Create conda environment
+        uses: mamba-org/setup-micromamba@v1
+        with:
+          environment-name: httomo
+          create-args: >-
+            cupy==12.3.0
+            h5py=*=*mpi_openmpi*
+            mpi4py
+            tomopy==1.15
+          post-cleanup: 'all'
+          init-shell: bash
+
+      - name: Install httomo libraries and httomo
+        run: |
+          micromamba activate httomo
+          pip install .[dev-gpu]
+          micromamba list
+
+      - name: Generate full yaml pipelines using pipeline directives
+        run: |
+          pip install "ruamel.yaml>0.18.0"
+          python ./docs/source/scripts/execute_pipelines_build.py -o ./docs/source/pipelines_full/
+
+      - name: Run HTTomo framework tests
+        run: |
+          pytest tests/
+
+      - name: Run HTTomo pipelines tests (small data)
+        run: |
+          pytest tests/test_pipeline_small.py --small_data