From 72bc980196a03eef793ded59d0a258a45324cdd1 Mon Sep 17 00:00:00 2001
From: Tim Hunter <huntert@gmail.com>
Date: Thu, 23 Dec 2021 01:36:36 +0000
Subject: [PATCH] update python to 3.10 and flask to 1.1.4

At the moment, containers built with this repository will fail to run with
these errors:

```
cloud_user@ip-10-0-1-101:~$ kubectl log deployment/hello -n lasample
log is DEPRECATED and will be removed in a future version. Use logs instead.
Traceback (most recent call last):
  File "/python/app.py", line 1, in <module>
    from flask import Flask
  File "/usr/local/lib/python3.10/site-packages/flask/__init__.py", line 21,
in <module>
    from .app import Flask, Request, Response
  File "/usr/local/lib/python3.10/site-packages/flask/app.py", line 36, in
<module>
    from .sessions import SecureCookieSessionInterface
  File "/usr/local/lib/python3.10/site-packages/flask/sessions.py", line 14,
in <module>
    from collections import MutableMapping
ImportError: cannot import name 'MutableMapping' from 'collections'
(/usr/local/lib/python3.10/collections/__init__.py)
```

python/Dockerfile builds from python:3-alpine, which currently uses python
3.10.1.  This version of python requires an updated import syntax that doesn't
seem to be in use in version 1.0.2 of Flask, installed via requirements.txt.

https://stackoverflow.com/questions/70013988/importerror-cannot-import-name-mutablemapping-from-collections-usr-local

Here I've explicitly specified python 3.10 in both the Dockerfile and in the
github workflow file, and updated the Flask version to one that works with
python 3.10.
---
 .github/workflows/pythonapp.yml | 4 ++--
 python/Dockerfile               | 2 +-
 python/requirements.txt         | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/pythonapp.yml b/.github/workflows/pythonapp.yml
index c3e5d3176..83c897252 100644
--- a/.github/workflows/pythonapp.yml
+++ b/.github/workflows/pythonapp.yml
@@ -12,10 +12,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v1
-    - name: Set up Python 3.7
+    - name: Set up Python 3.10.1
       uses: actions/setup-python@v1
       with:
-        python-version: 3.7
+        python-version: 3.10.1
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
diff --git a/python/Dockerfile b/python/Dockerfile
index f03e5e3f2..7e057e1f5 100644
--- a/python/Dockerfile
+++ b/python/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3-alpine
+FROM python:3.10.1-alpine
 COPY . /python
 WORKDIR /python
 RUN pip install -r requirements.txt
diff --git a/python/requirements.txt b/python/requirements.txt
index f2e1e5065..a96494bf0 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -1 +1 @@
-Flask==1.0.2
+Flask==1.1.4