feat: Upgrade Python to 3.12 for CRUD web apps

Upgrade Python toolchain from 3.10 to 3.12 for all three CRUD web applications
(Jupyter, Volumes, Tensorboards) and their shared common backend.

Changes:
- Update Dockerfiles to use python:3.12-slim base image
- Add setuptools and wheel installation (required in Python 3.12 slim)
- Update CI workflows to use Python 3.12 for testing and linting
- Upgrade common backend dependencies to address vulnerabilities:
  * Flask: 1.1.1 → 2.3.2
  * Werkzeug: 0.16.0 → 3.0.6
  * requests: 2.22.0 → 2.32.4
  * urllib3: 1.25.7 → 2.5.0
  * kubernetes: ==22.6.0 → >=22.6.0

Testing performed:
- All CI workflows passed (backend unit tests, integration tests, multi-arch builds)
- Local functional testing in Kind cluster with full Kubeflow deployment
- Verified all three web apps running on Python 3.12
- Tested CRUD operations via UI:
  * Created, viewed, and deleted Volumes
  * Created, viewed, and deleted Jupyter Notebooks
  * Created, viewed, and deleted TensorBoards
- Verified namespace visibility and RBAC permissions
- Confirmed API endpoints responding correctly
- Validated container startup and health checks

Closes: #724, #725, #726
Signed-off-by: Asaad Balum <[email protected]>

Author: asaadbalum

.github/workflows/jwa_backend_unittests.yaml

@@ -25,7 +25,7 @@ jobs:
 
       - uses: actions/setup-python@v5
         with:
-          python-version: "3.7"
+          python-version: "3.12"
 
       - name: Setup Python environment
         run: |

.github/workflows/python_lint.yaml

@@ -17,10 +17,10 @@ jobs:
       - name: Checkout source repository
         uses: actions/checkout@v4
 
-      - name: Set up Python environment 3.8
+      - name: Set up Python environment 3.12
         uses: actions/setup-python@v5
         with:
-          python-version: "3.8"
+          python-version: "3.12"
 
       - name: flake8 Lint
         uses: py-actions/flake8@v2

components/crud-web-apps/common/backend/setup.py

@@ -1,12 +1,12 @@
 import setuptools
 
 REQUIRES = [
-    "Flask >= 1.1.1",
+    "Flask >= 2.3.2",
     "Flask-API >= 2.0",
-    "kubernetes == 22.6.0",
-    "requests >= 2.22.0",
-    "urllib3 >= 1.25.7",
-    "Werkzeug >= 0.16.0",
+    "kubernetes >= 22.6.0",
+    "requests >= 2.32.4",
+    "urllib3 >= 2.5.0",
+    "Werkzeug >= 3.0.6",
     "Flask-Cors >= 3.0.8",
     "gevent",
     "prometheus-flask-exporter >= 0.23.1",

components/crud-web-apps/jupyter/Dockerfile

@@ -1,10 +1,12 @@
 # --- Build the backend kubeflow-wheel ---
-FROM python:3.10-slim AS backend-kubeflow-wheel
+# Python 3.12 upgrade
+FROM python:3.12-slim AS backend-kubeflow-wheel
 
 WORKDIR /src
 
 COPY ./common/backend/ .
-RUN python3 setup.py bdist_wheel
+RUN pip install --no-cache-dir setuptools wheel && \
+    python3 setup.py bdist_wheel
 
 # --- Build the frontend kubeflow library ---
 FROM node:16.20.2-bullseye as frontend-kubeflow-lib
@@ -41,7 +43,7 @@ COPY --from=frontend-kubeflow-lib /src/dist/kubeflow/ ./node_modules/kubeflow/
 RUN npm run build -- --output-path=./dist/default --configuration=production
 
 # Web App
-FROM python:3.10-slim
+FROM python:3.12-slim
 
 WORKDIR /package
 COPY --from=backend-kubeflow-wheel /src .

components/crud-web-apps/jupyter/README.md

@@ -32,7 +32,7 @@ with a [configmap](./manifests/base/configs/logos-configmap.yaml) to make it eas
 
 Requirements:
 * node 16.20.2
-* python 3.8
+* python 3.12
 
 ### Frontend
 
@@ -64,8 +64,8 @@ cd components/crud-web-apps/jupyter
 
 # create a virtual env and install deps
 # https://packaging.python.org/guides/installing-using-pip-and-virtual-environments/
-python3.8 -m pip install --user virtualenv
-python3.8 -m venv web-apps-dev
+python3.12 -m pip install --user virtualenv
+python3.12 -m venv web-apps-dev
 source web-apps-dev/bin/activate
 
 # install the deps on the activated virtual env

components/crud-web-apps/tensorboards/Dockerfile

@@ -1,10 +1,12 @@
 # --- Build the backend kubeflow-wheel ---
-FROM python:3.10-slim AS backend-kubeflow-wheel
+# Python 3.12 upgrade
+FROM python:3.12-slim AS backend-kubeflow-wheel
 
 WORKDIR /src
 
 COPY ./common/backend/ .
-RUN python3 setup.py bdist_wheel
+RUN pip install --no-cache-dir setuptools wheel && \
+    python3 setup.py bdist_wheel
 
 # --- Build the frontend kubeflow library ---
 FROM node:16.20.2-bullseye as frontend-kubeflow-lib
@@ -41,7 +43,7 @@ COPY --from=frontend-kubeflow-lib /src/dist/kubeflow/ ./node_modules/kubeflow/
 RUN npm run build -- --output-path=./dist --configuration=production
 
 # Web App
-FROM python:3.10-slim
+FROM python:3.12-slim
 
 WORKDIR /package
 COPY --from=backend-kubeflow-wheel /src .

components/crud-web-apps/tensorboards/README.md

@@ -13,7 +13,7 @@ This web app is responsible for allowing the user to manipulate Tensorboard inst
 
 Requirements:
 * node 16.20.2
-* python 3.8
+* python 3.12
 
 ### Frontend
 
@@ -37,8 +37,8 @@ npm run build:watch
 # create a virtual env and install deps
 # https://packaging.python.org/guides/installing-using-pip-and-virtual-environments/
 cd component/crud-web-apps/tensorboards/backend
-python3.8 -m pip install --user virtualenv
-python3.8 -m venv web-apps-dev
+python3.12 -m pip install --user virtualenv
+python3.12 -m venv web-apps-dev
 source web-apps-dev/bin/activate
 
 # install the deps on the activated virtual env

components/crud-web-apps/volumes/Dockerfile

@@ -1,10 +1,12 @@
 # --- Build the backend kubeflow-wheel ---
-FROM python:3.10-slim AS backend-kubeflow-wheel
+# Python 3.12 upgrade
+FROM python:3.12-slim AS backend-kubeflow-wheel
 
 WORKDIR /src
 
 COPY ./common/backend/ .
-RUN python3 setup.py bdist_wheel
+RUN pip install --no-cache-dir setuptools wheel && \
+    python3 setup.py bdist_wheel
 
 # --- Build the frontend kubeflow library ---
 FROM node:16.20.2-bullseye as frontend-kubeflow-lib
@@ -41,7 +43,7 @@ COPY --from=frontend-kubeflow-lib /src/dist/kubeflow/ ./node_modules/kubeflow/
 RUN npm run build -- --output-path=./dist/default --configuration=production
 
 # Web App
-FROM python:3.10-slim
+FROM python:3.12-slim
 
 WORKDIR /package
 COPY --from=backend-kubeflow-wheel /src .

components/crud-web-apps/volumes/README.md

@@ -6,7 +6,7 @@ This web app is responsible for allowing the user to manipulate PVCs in their Ku
 
 Requirements:
 * node 16.20.2
-* python 3.8
+* python 3.12
 
 ### Frontend
 
@@ -30,8 +30,8 @@ npm run build:watch
 # create a virtual env and install deps
 # https://packaging.python.org/guides/installing-using-pip-and-virtual-environments/
 cd component/crud-web-apps/volumes/backend
-python3.8 -m pip install --user virtualenv
-python3.8 -m venv web-apps-dev
+python3.12 -m pip install --user virtualenv
+python3.12 -m venv web-apps-dev
 source web-apps-dev/bin/activate
 
 # install the deps on the activated virtual env