diff --git a/scripts/ci/docker/_alpinedav_ubuntu_18.04_cuda_11.4.0_devel_tpls_build_ascent/Dockerfile b/scripts/ci/docker/_alpinedav_ubuntu_18.04_cuda_11.4.0_devel_tpls_build_ascent/Dockerfile
deleted file mode 100644
index 3d2600a3c..000000000
--- a/scripts/ci/docker/_alpinedav_ubuntu_18.04_cuda_11.4.0_devel_tpls_build_ascent/Dockerfile
+++ /dev/null
@@ -1,19 +0,0 @@
-# Copyright (c) Lawrence Livermore National Security, LLC and other Ascent
-# Project developers. See top-level LICENSE AND COPYRIGHT files for dates and
-# other details. No copyright assignment is required to contribute to Ascent.
-
-FROM alpinedav/ascent-ci:ubuntu-18.04-cuda-11.4.0-devel
-
-# obtain a copy of ascent source from host env,
-# which we use to call uberenv
-COPY ascent.docker.src.tar.gz /
-# extract 
-RUN tar -xzf ascent.docker.src.tar.gz
-
-# copy spack build script in
-COPY docker_uberenv_build.sh docker_env_setup.sh /
-RUN chmod -R a+x /*.sh
-
-RUN /docker_uberenv_build.sh
-
-RUN /docker_env_setup.sh
diff --git a/scripts/ci/docker/_alpinedav_ubuntu_18.04_cuda_11.4.0_devel_tpls_build_ascent/build.sh b/scripts/ci/docker/_alpinedav_ubuntu_18.04_cuda_11.4.0_devel_tpls_build_ascent/build.sh
deleted file mode 100644
index 1c2385a4d..000000000
--- a/scripts/ci/docker/_alpinedav_ubuntu_18.04_cuda_11.4.0_devel_tpls_build_ascent/build.sh
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/bin/bash
-# Copyright (c) Lawrence Livermore National Security, LLC and other Ascent
-# Project developers. See top-level LICENSE AND COPYRIGHT files for dates and
-# other details. No copyright assignment is required to contribute to Ascent.
-set -ev
-
-export TAG_BASE=alpinedav/ascent-ci:ubuntu-18.04-cuda-11.4.0-devel-tpls-build-ascent
-
-date
-
-python ../build_and_tag.py ${TAG_BASE}
-
-date
diff --git a/scripts/ci/docker/_alpinedav_ubuntu_18.04_cuda_11.4.0_devel_tpls_build_ascent/docker_env_setup.sh b/scripts/ci/docker/_alpinedav_ubuntu_18.04_cuda_11.4.0_devel_tpls_build_ascent/docker_env_setup.sh
deleted file mode 100644
index 12dfb0bb0..000000000
--- a/scripts/ci/docker/_alpinedav_ubuntu_18.04_cuda_11.4.0_devel_tpls_build_ascent/docker_env_setup.sh
+++ /dev/null
@@ -1,7 +0,0 @@
-# create some helper scripts
-python ascent/scripts/gen_spack_env_script.py cmake mpi
-echo "git clone --recursive https://github.com/Alpine-DAV/ascent.git" > clone.sh
-chmod +x clone.sh
-
-# delete copy of source from host (ci will fetch new from repo)
-rm -rf ascent
\ No newline at end of file
diff --git a/scripts/ci/docker/_alpinedav_ubuntu_18.04_cuda_11.4.0_devel_tpls_build_ascent/docker_uberenv_build.sh b/scripts/ci/docker/_alpinedav_ubuntu_18.04_cuda_11.4.0_devel_tpls_build_ascent/docker_uberenv_build.sh
deleted file mode 100644
index 4b1382a8b..000000000
--- a/scripts/ci/docker/_alpinedav_ubuntu_18.04_cuda_11.4.0_devel_tpls_build_ascent/docker_uberenv_build.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/bin/bash
-set -ev
-
-cmake_install_dir=/cmake-3.23.2-linux-x86_64
-if [ ! -d ${cmake_install_dir} ]; then
-  echo "**** Downloading ${hdf5_tarball}"
-  # setup cmake in container
-  curl -L https://github.com/Kitware/CMake/releases/download/v3.23.2/cmake-3.23.2-linux-x86_64.tar.gz -o cmake-3.23.2-linux-x86_64.tar.gz
-  tar -xzf cmake-3.23.2-linux-x86_64.tar.gz
-fi
-
-export PATH=$PATH:/${cmake_install_dir}/bin/
-
-# build cuda tpls with helper script
-chmod +x ascent/scripts/build_ascent/build_ascent_cuda.sh
-env build_ascent=false ascent/scripts/build_ascent/build_ascent_cuda.sh
-
diff --git a/scripts/ci/docker/alpinedav_ubuntu_20.04_cuda_11.4.3_devel_tpls/docker_uberenv_build.sh b/scripts/ci/docker/alpinedav_ubuntu_20.04_cuda_11.4.3_devel_tpls/docker_uberenv_build.sh
index 5a18cb9be..64de1313b 100644
--- a/scripts/ci/docker/alpinedav_ubuntu_20.04_cuda_11.4.3_devel_tpls/docker_uberenv_build.sh
+++ b/scripts/ci/docker/alpinedav_ubuntu_20.04_cuda_11.4.3_devel_tpls/docker_uberenv_build.sh
@@ -8,12 +8,12 @@ export SPACK_SPEC="%gcc+mpi+cuda+vtkh+dray+mfem+occa~genten~python~openmp~shared
 # constraints
 export SPACK_SPEC="${SPACK_SPEC} ^raja+cuda~openmp cuda_arch=70 ^umpire+cuda~openmp cuda_arch=70 ^camp+cuda~openmp cuda_arch=70 ^hdf5~mpi ^mfem~cuda~petsc~sundials~slepc ^hypre~cuda ^vtk-m+cuda~kokkos cuda_arch=70"
 # config
-export SPACK_CONFIG="scripts/uberenv_configs/spack_configs/configs/alpinedav/ubuntu_22.04_cuda_11.8.0_devel/"
+export SPACK_ENV_YAML="scripts/uberenv_configs/spack_configs/envs/alpinedav-ubuntu_20.04_cuda_11.4.3_devel/spack.yaml"
 
 cd ascent && python3 scripts/uberenv/uberenv.py \
      -k \
      --spec="${SPACK_SPEC}" \
-     --spack-config-dir="${SPACK_CONFIG}" \
+     --spack-env-file="${SPACK_ENV_YAML}" \
      --prefix="/uberenv_libs"
 
 # cleanup the spack build stuff to free up space
diff --git a/scripts/ci/docker/alpinedav_ubuntu_20.04_cuda_12.1.1_devel_tpls/docker_uberenv_build.sh b/scripts/ci/docker/alpinedav_ubuntu_20.04_cuda_12.1.1_devel_tpls/docker_uberenv_build.sh
index 5a18cb9be..ebe6d2cd5 100644
--- a/scripts/ci/docker/alpinedav_ubuntu_20.04_cuda_12.1.1_devel_tpls/docker_uberenv_build.sh
+++ b/scripts/ci/docker/alpinedav_ubuntu_20.04_cuda_12.1.1_devel_tpls/docker_uberenv_build.sh
@@ -8,12 +8,12 @@ export SPACK_SPEC="%gcc+mpi+cuda+vtkh+dray+mfem+occa~genten~python~openmp~shared
 # constraints
 export SPACK_SPEC="${SPACK_SPEC} ^raja+cuda~openmp cuda_arch=70 ^umpire+cuda~openmp cuda_arch=70 ^camp+cuda~openmp cuda_arch=70 ^hdf5~mpi ^mfem~cuda~petsc~sundials~slepc ^hypre~cuda ^vtk-m+cuda~kokkos cuda_arch=70"
 # config
-export SPACK_CONFIG="scripts/uberenv_configs/spack_configs/configs/alpinedav/ubuntu_22.04_cuda_11.8.0_devel/"
+export SPACK_ENV_YAML="scripts/uberenv_configs/spack_configs/envs/alpinedav-ubuntu_20.04_cuda_12.1.1_devel/spack.yaml"
 
 cd ascent && python3 scripts/uberenv/uberenv.py \
      -k \
      --spec="${SPACK_SPEC}" \
-     --spack-config-dir="${SPACK_CONFIG}" \
+     --spack-env-file="${SPACK_ENV_YAML}" \
      --prefix="/uberenv_libs"
 
 # cleanup the spack build stuff to free up space
diff --git a/scripts/ci/docker/alpinedav_ubuntu_20.04_devel_tpls/docker_uberenv_build.sh b/scripts/ci/docker/alpinedav_ubuntu_20.04_devel_tpls/docker_uberenv_build.sh
index 921c9b182..fc43248fe 100755
--- a/scripts/ci/docker/alpinedav_ubuntu_20.04_devel_tpls/docker_uberenv_build.sh
+++ b/scripts/ci/docker/alpinedav_ubuntu_20.04_devel_tpls/docker_uberenv_build.sh
@@ -8,12 +8,12 @@ export SPACK_SPEC="%gcc+mpi+python+dray+mfem+occa+fides+adios2+babelflow~genten"
 # constraints
 export SPACK_SPEC="${SPACK_SPEC}"
 # config
-export SPACK_CONFIG="scripts/uberenv_configs/spack_configs/configs/alpinedav/ubuntu_18.04_devel/"
+export SPACK_ENV_YAML="scripts/uberenv_configs/spack_configs/envs/alpinedav-ubuntu_18.04_devel/spack.yaml"
 
 cd ascent && python3 scripts/uberenv/uberenv.py \
      -k \
      --spec="${SPACK_SPEC}" \
-     --spack-config-dir="${SPACK_CONFIG}" \
+     --spack-env-file="${SPACK_ENV_YAML}" \
      --prefix="/uberenv_libs"
 
 # cleanup the spack build stuff to free up space
diff --git a/scripts/ci/docker/alpinedav_ubuntu_22.04_devel_tpls/docker_uberenv_build.sh b/scripts/ci/docker/alpinedav_ubuntu_22.04_devel_tpls/docker_uberenv_build.sh
index 921c9b182..fc43248fe 100644
--- a/scripts/ci/docker/alpinedav_ubuntu_22.04_devel_tpls/docker_uberenv_build.sh
+++ b/scripts/ci/docker/alpinedav_ubuntu_22.04_devel_tpls/docker_uberenv_build.sh
@@ -8,12 +8,12 @@ export SPACK_SPEC="%gcc+mpi+python+dray+mfem+occa+fides+adios2+babelflow~genten"
 # constraints
 export SPACK_SPEC="${SPACK_SPEC}"
 # config
-export SPACK_CONFIG="scripts/uberenv_configs/spack_configs/configs/alpinedav/ubuntu_18.04_devel/"
+export SPACK_ENV_YAML="scripts/uberenv_configs/spack_configs/envs/alpinedav-ubuntu_18.04_devel/spack.yaml"
 
 cd ascent && python3 scripts/uberenv/uberenv.py \
      -k \
      --spec="${SPACK_SPEC}" \
-     --spack-config-dir="${SPACK_CONFIG}" \
+     --spack-env-file="${SPACK_ENV_YAML}" \
      --prefix="/uberenv_libs"
 
 # cleanup the spack build stuff to free up space