add Python 3.12 support, prefer absolute paths in Dockerfiles (#102)

* add Python 3.12 support

* exclude Python 3.12 RAPIDS 24.08 builds

* absolute paths

ci/axis/dask.yaml

@@ -9,6 +9,7 @@ CUDA_VER:
 PYTHON_VER:
   - '3.10'
   - '3.11'
+  - '3.12'
 
 LINUX_VER:
   - ubuntu20.04
@@ -21,3 +22,6 @@ excludes:
   # dask-image gpuCI isn't dependent on RAPIDS
   - BUILD_NAME: dask_image
     RAPIDS_VER: '24.08'
+  # Python 3.12 support was first added in RAPIDS 24.10
+  - PYTHON_VER: '3.12'
+    RAPIDS_VER: '24.08'

dask/Dockerfile

@@ -31,7 +31,7 @@ RUN cat /dask.yml \
     | sed -r "s/pyarrow=/pyarrow>=/g" \
     | sed -r "s/pandas=/pandas>=/g" \
     | sed -r "s/numpy=/numpy>=/g" \
-    > dask_unpinned.yml
+    > /dask_unpinned.yml
 
 RUN conda-merge /rapids_pinned.yml /dask_unpinned.yml > /dask.yml
 

distributed/Dockerfile

@@ -29,7 +29,7 @@ RUN cat /rapids.yml \
 # unpin problematic CI dependencies
 RUN cat /dask.yml \
     | sed -r "s/pyarrow=/pyarrow>=/g" \
-    > dask_unpinned.yml
+    > /dask_unpinned.yml
 
 RUN conda-merge /rapids_pinned.yml /dask_unpinned.yml > /distributed.yml