Start fixing debian build

debian/control

@@ -2,12 +2,12 @@ Source: ralph
 Section: python
 Priority: extra
 Maintainer: [email protected]
-Build-Depends: debhelper (>= 9), dh-virtualenv, git, libmysqlclient-dev | default-libmysqlclient-dev, python3 (>=3.8), python3-dev (>=3.8), libffi-dev, nodejs, npm, sed
+Build-Depends: debhelper (>= 9), dh-virtualenv, git, libmysqlclient-dev | default-libmysqlclient-dev, python3 (>=3.8), libffi-dev, nodejs, npm, sed
 Standards-Version: 3.9.5
 
 Package: ralph-core
 Architecture: amd64
-Depends: dpkg (>= 1.16.1), python3 (>=3.8), libmysqlclient20, python3-distutils, debconf ${misc:Pre-Depends}
+Depends: dpkg (>= 1.16.1), python3 (>=3.8), libmysqlclient21, python3-distutils, debconf ${misc:Pre-Depends}
 Description: Ralph is an DCIM/CMDB - asset management for Data Centers/ Back Office.
 Homepage: http://ralph.allegrogroup.com
 Suggests: mysql-server, redis

debian/rules

@@ -9,7 +9,7 @@ override_dh_virtualenv:
 	npm install
 	node_modules/bower/bin/bower --allow-root install
 	node_modules/gulp/bin/gulp.js
-	dh_virtualenv --python /usr/bin/python3.6 --upgrade-pip-to 19.3.1 --requirements requirements/prod.txt
+	dh_virtualenv --python /usr/bin/python3.8 --requirements requirements/prod.txt
 
 override_dh_shlibdeps:
 	dh_shlibdeps --dpkg-shlibdeps-params="--ignore-missing-info" --exclude=PIL --exclude=_cffi_backend

docker/Dockerfile-deb

@@ -1,4 +1,4 @@
-FROM ubuntu:bionic
+FROM ubuntu:focal
 
 LABEL maintainer="Allegro.pl Sp. z o.o. [email protected]"
 LABEL authors="Allegro.pl Sp. z o.o. and Contributors [email protected]"
@@ -23,10 +23,8 @@ RUN apt-get update && \
 
 RUN apt-get update && \
     apt-get -y install build-essential debhelper devscripts equivs dh-virtualenv \
-    # Newer version of mysqlclient-dev fails to install.
-    # Fixed version should be removed once this problem is fixed in Ubuntu.
-    libmysqlclient-dev=5.7.21-1ubuntu1 libmysqlclient20=5.7.21-1ubuntu1 \
-    python3 python3-dev libffi-dev nodejs npm git-buildpackage vim-tiny git && \
+    libmysqlclient-dev libmysqlclient21 \
+    python3.8 python3.8-dev libffi-dev nodejs npm git-buildpackage vim-tiny git && \
     rm -rf /var/lib/apt/lists/* && \
     git config --global user.name "$GIT_USER_NAME" && \
     git config --global user.email "$GIT_USER_EMAIL"