Update Linux packaging to build using AlmaLinux 8

.github/workflows/container_build.sh

@@ -1,46 +1,40 @@
 #!/usr/bin/env bash
 cd /github/workspace/
 
-# Use archive mirror for CentOS 7 until we are ready to migrate to CentOS 8
-sed -i -e 's/mirrorlist/#mirrorlist/g' \
-	-e 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' \
-	/etc/yum.repos.d/CentOS-*
-
 # Install dependencies
-yum install -y wget git centos-release-scl ca-certificates
-
-# Need to install packages that depend on centos-release-scl on a different line.
-# This will use gcc==10, which is the same as what manylinux2014 uses.
-yum install -y devtoolset-10
+# Use gcc-14 for manylinux_2_28
+yum install -y wget git gcc-toolset-14
 
 # Enable this toolset
-source /opt/rh/devtoolset-10/enable
+source /opt/rh/gcc-toolset-14/enable
 
 # Download and install miniconda
 wget https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh
 chmod a+x Miniconda3-latest-Linux-x86_64.sh
 ./Miniconda3-latest-Linux-x86_64.sh -b
 
+# Activate conda
+source $HOME/miniconda3/bin/activate
+
 # The base needs to have the same python version (3.11, right now)
-${HOME}/miniconda3/bin/conda install python=3.11 -y
+conda install --override-channels -c conda-forge python=3.11 -y
 
 # Set up the hexrd channel
-${HOME}/miniconda3/bin/conda create --override-channels -c conda-forge -y -n hexrd python=3.11
-${HOME}/miniconda3/bin/activate hexrd
-${HOME}/miniconda3/bin/conda activate hexrd
+conda create --override-channels -c conda-forge -y -n hexrd python=3.11
+conda activate hexrd
 
 # Install the libmamba solver (it is much faster)
-${HOME}/miniconda3/bin/conda install -n base -c conda-forge conda-libmamba-solver
-${HOME}/miniconda3/bin/conda config --set solver libmamba
-${HOME}/miniconda3/bin/conda config --set conda_build.pkg_format 1 # force tar.bz2 files
+conda install -n base -c conda-forge conda-libmamba-solver
+conda config --set solver libmamba
+conda config --set conda_build.pkg_format 1 # force tar.bz2 files
 
 
 # Remove anaconda telemetry (it is causing errors for us)
-${HOME}/miniconda3/bin/conda remove -n base conda-anaconda-telemetry
+conda remove -n base conda-anaconda-telemetry
 
 # Install conda build and create output directory
-${HOME}/miniconda3/bin/conda install --override-channels -c conda-forge conda-build -y
+conda install --override-channels -c conda-forge conda-build -y
 mkdir output
 
 # Build the package
-${HOME}/miniconda3/bin/conda build --override-channels -c conda-forge --output-folder output/ conda.recipe/
+conda build --override-channels -c conda-forge --output-folder output/ conda.recipe/

.github/workflows/package.yml

@@ -80,7 +80,10 @@ jobs:
 
     - name: Build the package (container)
       if: ${{ matrix.config.name == 'Linux' }}
-      uses: docker://centos:7
+      # AlmaLinux 8 is used for manylinux_2_28 support. This supports glibc
+      # 2.28 and later, which supports linux OS's starting in August 2018.
+      # AlmaLinux 8 will be supported with security updates until 2029.
+      uses: docker://almalinux:8
       with:
         entrypoint: /github/workspace/.github/workflows/container_build.sh