feat: ASP-3288 Use Python 3.12

CHANGELOG.rst

@@ -9,6 +9,8 @@ Unreleased
 - Added new configuration: JOBBERGATE_LEGACY_NAME_CONVENTION
 - Added new configuration: SBATCH_PATH [ASP-4238]
 - Added new configuration: JOBBERGATE_CACHE_DIR [ASP-4053]
+- Dropped support for CentOS 8
+- Installed Python 3.12 to run the CLI
 
 1.0.3 - 2023-09-07
 ------------------

charmcraft.yaml

@@ -13,6 +13,6 @@ bases:
       - name: centos
         channel: "7"
         architectures: [amd64]
-      - name: centos
-        channel: "8"
-        architectures: [amd64]
+parts:
+  charm:
+    charm-python-packages: [setuptools]

dispatch

@@ -1,47 +1,47 @@
 #!/bin/bash
-# This hook installs the centos dependencies needed to run the charm.
+# This hook installs the dependencies needed to run the charm,
+# creates the dispatch executable, regenerates the symlinks for start and
+# upgrade-charm, and kicks off the operator framework.
 
 set -e
 
-# Source the os-release information into the env.
+# Source the os-release information into the env
 . /etc/os-release
 
-PYTHON_BIN=/opt/python/3.8.16/bin/python3.8
+PYTHON_BIN=/opt/python/python3.12/bin/python3.12
 
-if [ ! -f '.installed' ]
+if ! [[ -f '.installed' ]]
 then
-    # Determine if we are running in centos or ubuntu, if centos
-    # provision the needed prereqs.
-    if [[ $ID == 'centos' || $ID == 'rocky' ]]
-    then       
-        # Install yaml deps
-        yum -y install libyaml-devel
-
-        # We need python3.8 to run license-manager-agent.
-        # Install python3.8 from source.
-        if [ ! -e $PYTHON_BIN ]
-        then
-            yum install -y epel-release gcc zlib-devel bzip2 bzip2-devel readline-devel \
-            sqlite sqlite-devel openssl-devel tk-devel libffi-devel xz-devel wget
-
-            /bin/bash ./src/templates/install_python.sh
-        fi       
-    elif [ $ID == 'ubuntu' ]
+    if [[ ! -e $PYTHON_BIN ]]
     then
-        # We are running an ubuntu os, so check for python and install the
-        # needed venv package or python3 from source, depending on what already
-        # exists on the system.
-        #
-        if [ ! -e $PYTHON_BIN ]
+        if [[ $ID == 'centos' || $ID == 'rocky' ]]
         then
-            apt install -y make build-essential libssl-dev zlib1g-dev \
-            libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm \
-            libncursesw5-dev xz-utils tk-dev libxml2-dev libxmlsec1-dev libffi-dev liblzma-dev
+            # Install dependencies to build custom python
+            yum -y install epel-release
+            yum -y install wget gcc make tar bzip2-devel zlib-devel xz-devel openssl-devel libffi-devel sqlite-devel ncurses-devel openssl11-libs openssl11-devel tk-devel libreadline-devel libgdbm-devel
+
+            # Install yaml deps
+            yum -y install libyaml-devel            
+        fi
 
-            /bin/bash ./src/templates/install_python.sh        
+        if [[ $ID == 'ubuntu' ]]
+        then
+             # Install dependencies to build custom python
+            apt install -y make build-essential libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev wget curl libncursesw5-dev xz-utils tk-dev libxml2-dev libxmlsec1-dev libffi-dev liblzma-dev
         fi
+
+        export PYTHON_VERSION=3.12.1
+        wget https://www.python.org/ftp/python/${PYTHON_VERSION}/Python-${PYTHON_VERSION}.tar.xz -P /tmp
+        tar xvf /tmp/Python-${PYTHON_VERSION}.tar.xz -C /tmp
+        cd /tmp/Python-${PYTHON_VERSION}
+        export CFLAGS="$CFLAGS $(pkg-config --cflags openssl11)"
+		export LDFLAGS="$LDFLAGS $(pkg-config --libs openssl11)"
+        ./configure --prefix=/opt/python/python3.12 --enable-optimizations
+        make -C /tmp/Python-${PYTHON_VERSION} -j $(nproc) altinstall
+        cd $OLDPWD
+        rm -rf /tmp/Python*
     fi
-    touch .installed
+	touch .installed
 fi
 
-JUJU_DISPATCH_PATH="${JUJU_DISPATCH_PATH:-$0}" PYTHONPATH=lib:venv ./src/charm.py
+JUJU_DISPATCH_PATH="${JUJU_DISPATCH_PATH:-$0}" PYTHONPATH=lib:venv $PYTHON_BIN ./src/charm.py

src/jobbergate_cli_ops.py

@@ -15,7 +15,7 @@
 class JobbergateCliOps:
     """Track and perform jobbergate-cli ops."""
 
-    _PYTHON_BIN = Path("/opt/python/3.8.16/bin/python3.8")
+    _PYTHON_BIN = Path("/opt/python/python3.12/bin/python3.12")
     _PACKAGE_NAME = "jobbergate-cli"
     _VENV_DIR = Path("/srv/new-jobbergate-cli-venv")
     _VENV_PYTHON = _VENV_DIR.joinpath("bin", "python").as_posix()