- gcc=4:7.4.0-1ubuntu2.3 \
- python3=3.6.7-1~18.04 \
- python3-dev=3.6.7-1~18.04 \
- python3-setuptools=39.0.1-2 \
- curl=7.58.0-2ubuntu3.14 \
- apt-transport-https=1.6.12ubuntu0.2 \
- gnupg2=2.2.4-1ubuntu1.4 \
- openssh-client && \
- python3 -m easy_install pip==21.0.1
+ gcc=4:9.3.* \
+ python3=3.8.* \
+ python3-dev=3.8.* \
+ python3-pip=20.0.2* \
+ python3-setuptools=45.2.* \
+ curl=7.68.*
+
+RUN DEBIAN_FRONTEND=noninteractive apt-get --yes install \
+ apt-transport-https=2.0.* \
+ gnupg2=2.2.* \
+ openssh-client=1:8.*