Restore release-essential references to 3.8 (apache#32499)

.github/workflows/beam_Publish_Beam_SDK_Snapshots.yml

@@ -66,6 +66,7 @@ jobs:
           - "java:container:java11"
           - "java:container:java17"
           - "java:container:java21"
+          - "python:container:py38"
           - "python:container:py39"
           - "python:container:py310"
           - "python:container:py311"

.github/workflows/build_wheels.yml

@@ -49,7 +49,7 @@ jobs:
     env:
       EVENT_NAME: ${{ github.event_name }}
       # Keep in sync with py_version matrix value below - if changed, change that as well.
-      PY_VERSIONS_FULL: "cp39-* cp310-* cp311-* cp312-*"
+      PY_VERSIONS_FULL: "cp38-* cp39-* cp310-* cp311-* cp312-*"
     outputs:
       gcp-variables-set: ${{ steps.check_gcp_variables.outputs.gcp-variables-set }}
       py-versions-full: ${{ steps.set-py-versions.outputs.py-versions-full }}
@@ -230,7 +230,7 @@ jobs:
           {"os": "ubuntu-20.04", "runner": [self-hosted, ubuntu-20.04, main], "python": "${{ needs.check_env_variables.outputs.py-versions-test }}", arch: "aarch64" }
         ]
         # Keep in sync with PY_VERSIONS_FULL env var abvove - if changed, change that as well.
-        py_version: ["cp39-*", "cp310-*", "cp311-*", "cp312-*"]
+        py_version: ["cp38-*", "cp39-*", "cp310-*", "cp311-*", "cp312-*"]
     steps:
     - name: Download python source distribution from artifacts
       # Pinned to v3 because of https://github.com/actions/download-artifact/issues/249

.github/workflows/update_python_dependencies.yml

@@ -56,6 +56,7 @@ jobs:
         uses: ./.github/actions/setup-environment-action
         with:
           python-version: |
+            3.8
             3.9
             3.10
             3.11

buildSrc/src/main/groovy/org/apache/beam/gradle/BeamModulePlugin.groovy

@@ -3145,6 +3145,7 @@ class BeamModulePlugin implements Plugin<Project> {
           mustRunAfter = [
             ":runners:flink:${project.ext.latestFlinkVersion}:job-server:shadowJar",
             ':runners:spark:3:job-server:shadowJar',
+            ':sdks:python:container:py38:docker',
             ':sdks:python:container:py39:docker',
             ':sdks:python:container:py310:docker',
             ':sdks:python:container:py311:docker',

gradle.properties

@@ -41,4 +41,4 @@ docker_image_default_repo_prefix=beam_
 # supported flink versions
 flink_versions=1.15,1.16,1.17,1.18
 # supported python versions
-python_versions=3.9,3.10,3.11,3.12
+python_versions=3.8,3.9,3.10,3.11,3.12

local-env-setup.sh

@@ -55,7 +55,7 @@ if [ "$kernelname" = "Linux" ]; then
         exit
     fi
 
-    for ver in 3.9 3.10 3.11 3.12 3; do
+    for ver in 3.8 3.9 3.10 3.11 3.12 3; do
         apt install --yes python$ver-venv
     done
 
@@ -89,7 +89,7 @@ elif [ "$kernelname" = "Darwin" ]; then
         echo "Installing openjdk@8"
         brew install openjdk@8
     fi
-    for ver in 3.9 3.10 3.11 3.12; do
+    for ver in 3.8 3.9 3.10 3.11 3.12; do
       if brew ls --versions python@$ver > /dev/null; then
           echo "python@$ver already installed. Skipping"
           brew info python@$ver

release/src/main/Dockerfile

@@ -42,11 +42,12 @@ RUN curl https://pyenv.run | bash && \
     echo 'command -v pyenv >/dev/null || export PATH="$PYENV_ROOT/bin:$PATH"' >> /root/.bashrc && \
     echo ''eval "$(pyenv init -)"'' >> /root/.bashrc && \
     source /root/.bashrc && \
+    pyenv install 3.8.9 && \
     pyenv install 3.9.4 && \
     pyenv install 3.10.7 && \
     pyenv install 3.11.3 && \
     pyenv install 3.12.3 && \
-    pyenv global 3.9.4 3.10.7 3.11.3 3.12.3
+    pyenv global 3.8.9 3.9.4 3.10.7 3.11.3 3.12.3
 
 # Install a Go version >= 1.16 so we can bootstrap higher
 # Go versions

release/src/main/python-release/python_release_automation.sh

@@ -19,7 +19,7 @@
 source release/src/main/python-release/run_release_candidate_python_quickstart.sh
 source release/src/main/python-release/run_release_candidate_python_mobile_gaming.sh
 
-for version in 3.9 3.10 3.11 3.12
+for version in 3.8 3.9 3.10 3.11 3.12
 do
   run_release_candidate_python_quickstart    "tar"   "python${version}"
   run_release_candidate_python_mobile_gaming "tar"   "python${version}"