fix: drop ubuntu 20.04

Author: irtazaakram

.github/workflows/ci.yml

@@ -8,38 +8,23 @@ on:
 jobs:
   codejail_ci:
     name: tests
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
-        include:
-          - python_version: '3.11'
-            ubuntu_version: '20.04'
-            os: "ubuntu-20.04"
-          - python_version: '3.11'
-            ubuntu_version: '22.04'
-            os: "ubuntu-22.04"
-          - python_version: '3.11'
-            ubuntu_version: '24.04'
-            os: "ubuntu-24.04"
+        python_version: ['3.11']
 
     steps:
       - uses: actions/checkout@v4
-      - name: Parse custom apparmor profile with default feature ABI
-        if: ${{ matrix.ubuntu_version == '20.04' }}
-        run: sudo apparmor_parser -r -W apparmor-profiles/home.sandbox.codejail_sandbox-python3.bin.python-default-abi
-
       - name: Parse custom apparmor profile with ABI 3.0
-        if: ${{ matrix.ubuntu_version != '20.04' }}
         run: sudo apparmor_parser -r -W apparmor-profiles/home.sandbox.codejail_sandbox-python3.bin.python-abi3
 
       - name: Build latest code changes into CI image
         run: |
           docker build -t openedx-codejail \
             --cache-to type=gha \
             --cache-from type=gha \
-            --build-arg python_version=${{ matrix.python_version }} \
-            --build-arg ubuntu_version=${{ matrix.ubuntu_version }} .
+            --build-arg python_version=${{ matrix.python_version }} .
 
       - name: Run container with custom apparmor profile and codejail CI image
         run: |

Dockerfile

@@ -1,9 +1,9 @@
-ARG ubuntu_version="20.04"
+ARG ubuntu_version="latest"
 
 FROM ubuntu:${ubuntu_version}
 SHELL ["/bin/bash", "-c"]
 
-ARG python_version="3.8"
+ARG python_version="3.11"
 
 # Install Codejail Packages
 ENV TZ=Etc/UTC

README.rst

@@ -59,9 +59,7 @@ Python:
 
 Ubuntu:
 
-* 20.04
-* 22.04
-* 24.04
+* 24.04 (latest)
 
 Installation
 ------------
@@ -88,7 +86,7 @@ Other details here that depend on your configuration:
 
 1. Create the new virtualenv, using ``--copies`` so that there's a distinct Python executable to limit::
 
-    $ sudo python3.8 -m venv --copies <SANDENV>
+    $ sudo python3.11 -m venv --copies <SANDENV>
 
    By default, the virtualenv would just symlink against the system Python, and apparmor's default configuration on some operating systems may prevent confinement from being appled to that.