ST-1388: Change startegy for removing unattended upgrades package after run...

ST-1388: Change startegy for removing unattended upgrades package after run (instead of mitigating poetry bug)

images/ska-tango-images-pytango-builder/Dockerfile

@@ -47,9 +47,6 @@ RUN apt-get update && \
 RUN curl -k https://bootstrap.pypa.io/get-pip.py -o get-pip.py && python3 get-pip.py
 COPY pip.conf /etc/pip.conf
 
-# Workaround for poetry intended bug: https://github.com/python-poetry/poetry/issues/6013
-RUN pip install distro-info==1.0
-
 WORKDIR /app
 
 # Install numpy manually before PyTango and other requirements to ensure we

images/ska-tango-images-tango-cpp/Dockerfile

@@ -24,6 +24,7 @@ RUN apt-get update && \
 
 # Apply security upgrades (base image is not patched)
 RUN unattended-upgrade
+RUN apt-get purge unattended-upgrades -y
 
 # build and install tangoidl
 RUN mkdir -p /usr/src/idl

images/ska-tango-images-tango-db/Dockerfile

@@ -12,6 +12,7 @@ RUN apt-get update && \
 
 # Apply security upgrades (base image is not patched)
 RUN unattended-upgrade
+RUN apt-get purge unattended-upgrades -y
 
 RUN mkdir -p /usr/src/tango
 

images/ska-tango-images-tango-dependencies/Dockerfile

@@ -34,6 +34,7 @@ RUN apt-get update && \
 
 # Apply security upgrades (base image)
 RUN unattended-upgrade
+RUN apt-get purge unattended-upgrades -y
 
 RUN mkdir /usr/src/zeromq
 WORKDIR /usr/src/zeromq