fix: slim container image (#314)

This changes switches from rapidsai container image to the smaller
miniconda image to remove potential dependency on the tools not needed
for the build.

Author: roivanov

.github/workflows/conda-python-build.yaml

@@ -57,21 +57,21 @@ jobs:
 
           # Please keep the matrices sorted in ascending order by the following:
           #
-          #     [ARCH, PY_VER, CUDA_VER, LINUX_VER]
+          #     [ARCH, PY_VER]
           #
           export MATRIX="
           # amd64
-          - { ARCH: 'amd64', PY_VER: '3.10', CUDA_VER: '12.9.1', LINUX_VER: 'rockylinux8' }
-          - { ARCH: 'amd64', PY_VER: '3.11', CUDA_VER: '12.9.1', LINUX_VER: 'rockylinux8' }
-          - { ARCH: 'amd64', PY_VER: '3.12', CUDA_VER: '12.9.1', LINUX_VER: 'rockylinux8' }
-          - { ARCH: 'amd64', PY_VER: '3.13', CUDA_VER: '12.9.1', LINUX_VER: 'rockylinux8' }
-          - { ARCH: 'amd64', PY_VER: '3.14', CUDA_VER: '12.9.1', LINUX_VER: 'rockylinux8' }
+          - { ARCH: 'amd64', PY_VER: '3.10' }
+          - { ARCH: 'amd64', PY_VER: '3.11' }
+          - { ARCH: 'amd64', PY_VER: '3.12' }
+          - { ARCH: 'amd64', PY_VER: '3.13' }
+          - { ARCH: 'amd64', PY_VER: '3.14' }
           # arm64
-          - { ARCH: 'arm64', PY_VER: '3.10', CUDA_VER: '12.9.1', LINUX_VER: 'rockylinux8' }
-          - { ARCH: 'arm64', PY_VER: '3.11', CUDA_VER: '12.9.1', LINUX_VER: 'rockylinux8' }
-          - { ARCH: 'arm64', PY_VER: '3.12', CUDA_VER: '12.9.1', LINUX_VER: 'rockylinux8' }
-          - { ARCH: 'arm64', PY_VER: '3.13', CUDA_VER: '12.9.1', LINUX_VER: 'rockylinux8' }
-          - { ARCH: 'arm64', PY_VER: '3.14', CUDA_VER: '12.9.1', LINUX_VER: 'rockylinux8' }
+          - { ARCH: 'arm64', PY_VER: '3.10' }
+          - { ARCH: 'arm64', PY_VER: '3.11' }
+          - { ARCH: 'arm64', PY_VER: '3.12' }
+          - { ARCH: 'arm64', PY_VER: '3.13' }
+          - { ARCH: 'arm64', PY_VER: '3.14' }
           "
 
           MATRIX="$(
@@ -88,8 +88,10 @@ jobs:
     runs-on: "linux-${{ matrix.ARCH }}-${{ inputs.node_type }}"
     env:
       RAPIDS_ARTIFACTS_DIR: ${{ github.workspace }}/artifacts
+      RAPIDS_CONDA_BLD_OUTPUT_DIR: /tmp/conda-bld-output
+      RAPIDS_CONDA_BLD_ROOT_DIR: /tmp/conda-bld-workspace
     container:
-      image: rapidsai/ci-conda:cuda${{ matrix.CUDA_VER }}-${{ matrix.LINUX_VER }}-py${{ matrix.PY_VER }}
+      image: condaforge/miniforge3:26.1.1-3
       env:
         RAPIDS_BUILD_TYPE: ${{ inputs.build_type }}
     steps:
@@ -103,6 +105,46 @@ jobs:
           repository: ${{ inputs.repo }}
           ref: ${{ inputs.sha }}
           fetch-depth: 0
+      - name: Install required packages
+        run: |
+          apt update
+          apt install -y jq gh unzip curl gettext
+      - name: Add Rapids tools
+        run: |
+          mkdir gha-tools
+          curl -fsSL https://github.com/rapidsai/gha-tools/archive/refs/tags/v0.0.198.tar.gz | \
+          tar -xz -C gha-tools --strip-components 1 -f -
+      - name: Add RAPIDS gha-tools to PATH
+        run: echo "${GITHUB_WORKSPACE}/gha-tools/tools" | tee -a "${GITHUB_PATH}"
+      - name: Prepare conda rc file
+        run: envsubst < ci/condarc.tmpl | tee ~/.condarc
+      - name: Mark workspace safe for the git command
+        run: git config --global --add safe.directory "$GITHUB_WORKSPACE"
+      - name: Install sccache
+        env:
+          # renovate: datasource=github-releases depName=rapidsai/sccache
+          SCCACHE_VERSION: 0.14.0-rapids.1
+          GH_TOKEN: ${{ github.token }}
+        run: rapids-install-sccache
+      - name: Update conda and install conda build
+        run: |
+          set -x
+          # Is update really needed?
+          rapids-mamba-retry update --all -y -n base
+          conda install -y conda-build
+      - name: Install python
+        env:
+          PYTHON_VERSION: ${{ matrix.PY_VER }}
+        run: |
+          PYTHON_MAJOR_VERSION=${PYTHON_VERSION%%.*}
+          PYTHON_MINOR_VERSION=${PYTHON_VERSION#*.}
+          PYTHON_UPPER_BOUND="${PYTHON_MAJOR_VERSION}.$((PYTHON_MINOR_VERSION+1)).0a0"
+          if [[ "${PYTHON_MINOR_VERSION}" -gt 12 ]]; then
+              PYTHON_ABI_TAG="cp${PYTHON_MAJOR_VERSION}${PYTHON_MINOR_VERSION}"
+          else
+              PYTHON_ABI_TAG="cpython"
+          fi
+          rapids-mamba-retry install -y -n base "python>=${PYTHON_VERSION},<${PYTHON_UPPER_BOUND}=*_${PYTHON_ABI_TAG}"
       - name: Standardize repository information
         run: |
           echo "RAPIDS_REPOSITORY=${{ inputs.repo || github.repository }}" >> "${GITHUB_ENV}"
@@ -129,7 +171,7 @@ jobs:
         uses: actions/upload-artifact@v7
         with:
           name: conda-repo-${{ matrix.ARCH }}-${{ matrix.PY_VER }}
-          path: "/tmp/conda-bld-output"
+          path: ${{ env.RAPIDS_CONDA_BLD_OUTPUT_DIR }}
       - name: Publish Conda Package
         if: inputs.upload_to_conda
         run: "ci/upload_conda.sh"

ci/condarc.tmpl

@@ -0,0 +1,5 @@
+conda-build:
+  pkg_format: '2'
+  set_build_id: false
+  root_dir: $RAPIDS_CONDA_BLD_ROOT_DIR
+  output_folder: $RAPIDS_CONDA_BLD_OUTPUT_DIR