Fix python version. (#56)

*Issue #, if available:*

1. change tox.ini `py3{7,8,9,10,11}` to `3.{7,8,9,10,11}` so that the
workflow can run unit test.
2. change project Dokerfile to use python 3.10, because we are using
opentelemetry-exporter-otlp-proto-grpc, it use grpcio as dependencies.
It seems like grpc has a strict dependency on the OS / Python version.
Also mentioned in [Docker build template in
upstream](https://github.com/open-telemetry/opentelemetry-operator/blob/b5bb0ae34720d4be2d229dafecb87b61b37699b0/autoinstrumentation/python/requirements.txt#L2).
When we use python 3.11 to build the docker file, we receive `"Cannot
import name 'cygrpc' from 'grpc._cython'"` in EKS auto-instrumentation
injection. As
[https://github.com/MicrosoftDocs/azure-docs/blob/main/articles/azure-functions/recover-python-functions.md#the-python-interpre[…]tions-python-worker](https://github.com/MicrosoftDocs/azure-docs/blob/main/articles/azure-functions/recover-python-functions.md#the-python-interpreter-isnt-supported-by-azure-functions-python-workerr)
suggested, Azure Functions support python 3.6 - 3.9, but while testing,
3.10 also worked. So change to 3.10 here.
3. As we change the python version for Dockerfile we also change
main_build and release_build workflow to align with Dock build.


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Author: zzhlogin

.github/workflows/main_build.yml

@@ -54,7 +54,7 @@ jobs:
           snapshot-ecr-role: ${{ secrets.AWS_ASSUME_ROLE_ARN }}
           push_image: true
           load_image: false
-          python_version: 3.11
+          python_version: 3.10
           package_name: aws-opentelemetry-distro
           os: ubuntu-latest
 

.github/workflows/release_build.yml

@@ -32,7 +32,7 @@ jobs:
           snapshot-ecr-role: ${{ secrets.AWS_ASSUME_ROLE_ARN }}
           push_image: false
           load_image: false
-          python_version: 3.11
+          python_version: 3.10
           package_name: aws-opentelemetry-distro
           os: ubuntu-latest
 

Dockerfile

@@ -4,7 +4,12 @@
 #   one init container will be created to copy all the content in `/autoinstrumentation` directory to app's container. Then
 #   update the `PYTHONPATH` environment variable accordingly. Then in the second stage, copy the directory to `/autoinstrumentation`.
 
-FROM python:3.11 AS build
+# Using Python 3.10 because we are utilizing the opentelemetry-exporter-otlp-proto-grpc exporter,
+# which relies on grpcio as a dependency. grpcio has strict dependencies on the OS and Python version.
+# Also mentioned in Docker build template in the upstream repository:
+# https://github.com/open-telemetry/opentelemetry-operator/blob/b5bb0ae34720d4be2d229dafecb87b61b37699b0/autoinstrumentation/python/requirements.txt#L2
+# For further details, please refer to: https://github.com/MicrosoftDocs/azure-docs/blob/main/articles/azure-functions/recover-python-functions.md#the-python-interpre[…]tions-python-worker
+FROM python:3.10 AS build
 
 WORKDIR /operator-build
 

tox.ini

@@ -4,7 +4,7 @@ skipsdist = True
 skip_missing_interpreters = True
 envlist =
     ; aws-opentelemetry-distro
-    py3{7,8,9,10,11}-test-aws-opentelemetry-distro
+    3.{7,8,9,10,11}-test-aws-opentelemetry-distro
     ; intentionally excluded from pypy3 since we use grpc in aws-opentelemetry-distro, but pypy3 doesn't support grpc
 
     lint
@@ -26,7 +26,7 @@ changedir =
 
 commands_pre =
 ; Install without -e to test the actual installation
-  py3{7,8,9,10,11}: python -m pip install -U pip setuptools wheel
+  3.{7,8,9,10,11}: python -m pip install -U pip setuptools wheel
 ; Install common packages for all the tests. These are not needed in all the
 ; cases but it saves a lot of boilerplate in this file.
   test: pip install "opentelemetry-api[test] @ {env:CORE_REPO}#egg=opentelemetry-api&subdirectory=opentelemetry-api"