upgrade base versions of key OS dependencies:

   ubuntu:  22.0.4 (jammy)
   python:   3.10
   mongodb:  7.0

docker/pymongo/Dockerfile

@@ -1,14 +1,15 @@
 # This provides the base support for Python 3.8 and MongoDB 4.4 
 
-FROM mongo:4.4
+FROM mongo:7.0-jammy
 # VOLUME /data
 MAINTAINER Ray Plante <[email protected]>
 COPY mongod.conf /etc/mongod.conf
 COPY mongod_ctl.sh /usr/local/bin
 
-RUN apt-get update && apt-get install -y ca-certificates locales python3.8 python3-pip python3.8-dev
-RUN update-alternatives --install /usr/bin/python python /usr/bin/python3.8 1; \
-    update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.8 1; \
+RUN apt-get update && apt-get install -y ca-certificates locales \
+                                         python3 python3-pip python3-dev python-is-python3
+RUN update-alternatives --install /usr/bin/python python /usr/bin/python3 1; \
+    update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3 1; \
     update-alternatives --install /usr/bin/pip pip /usr/bin/pip3 1
 RUN locale-gen en_US.UTF-8