Parameterize python version

Author: relud

.circleci/config.yml

@@ -5,6 +5,11 @@ orbs:
   gcp-gcr: circleci/[email protected]
   docker: circleci/[email protected]
 
+parameters:
+  python-version:
+    type: string
+    default: '3.10'
+
 executors:
   ubuntu-machine-executor:
     machine:
@@ -13,7 +18,7 @@ executors:
 jobs:
   build:
     docker: &docker
-      - image: python:3.10
+      - image: python:<< pipeline.parameters.python-version >>
     steps:
       - checkout
       - &restore_venv_cache
@@ -23,11 +28,12 @@ jobs:
             # patterns to restore cache
             - &python_cache_key
               # yamllint disable-line rule:line-length
-              python-3.10-packages-v1-{{ .Branch }}-{{ checksum "requirements.in" }}-{{ checksum "requirements.txt" }}
-              # yamllint disable-line rule:line-length
-            - python-3.10-packages-v1-{{ .Branch }}-{{ checksum "requirements.in" }}-
-            - python-3.10-packages-v1-{{ .Branch }}-
-            - python-3.10-packages-v1-main-
+              python-<< pipeline.parameters.python-version >>-packages-v1-{{ .Branch }}-{{ checksum "requirements.in" }}-{{ checksum "requirements.txt" }}
+            # yamllint disable-line rule:line-length
+            - python-<< pipeline.parameters.python-version >>-packages-v1-{{ .Branch }}-{{ checksum "requirements.in" }}-
+            # yamllint disable-line rule:line-length
+            - python-<< pipeline.parameters.python-version >>-packages-v1-{{ .Branch }}-
+            - python-<< pipeline.parameters.python-version >>-packages-v1-main-
       - &build
         run:
           name: Build