fix Dockerfile

Dockerfile

@@ -1,8 +1,9 @@
-FROM debian:buster
+FROM debian:bullseye
 
 LABEL Maintainer="Wolfgang Hottgenroth <woho@hottis.de>"
 LABEL ImageName="registry.hottis.de/dockerized/base-build-env"
 LABEL AlternativeImageName="wollud1969/base-build-env"
+LABEL NexusImageName="devnexus.krohne.com:18079/repository/docker-krohne/base-build-env"
 
 ARG RELEASETOOL_URL="https://home.hottis.de/gitlab/wolutator/gitlabreleaseuploader/uploads/f97b219a1df1910822b9936a8236dfbd/GitlabReleaseTool.zip"
 
@@ -15,6 +16,7 @@ RUN \
   apt install -y openssh-client && \
   apt install -y git && \
   apt install -y python3 && \
+  update-alternatives --install /usr/bin/python python /usr/bin/python3.9 1 && \
   apt install -y python3-requests && \
   apt install -y python3-pycodestyle && \
   apt install -y python3-yaml && \
@@ -26,14 +28,12 @@ RUN \
   apt install -y curl && \
   apt install -y unzip && \
   apt install -y zip && \
-  apt install -y vim.tiny && \
+  apt install -y vim-tiny && \
   apt install -y p7zip-full && \
   apt install -y procps && \
   apt install -y doxygen && \
   apt install -y jq && \
   rm -rf /var/lib/apt/lists/* && \
-  ln -s /usr/bin/python3 /usr/bin/python && \
-  ln -s /usr/bin/pip3 /usr/bin/pip && \
   pip install Cheetah3 && \
   cd /tmp && \
   wget $RELEASETOOL_URL && \

readme.md

@@ -1,6 +1,6 @@
 ## Base image for build containers
 
-Based on Debian Buster
+Based on Debian ~~Buster~~ Bullseye
 
 Contains additionally:
    * make
@@ -12,5 +12,9 @@ Contains additionally:
    * wget and curl
    * zip, unzip and 7z
    * vim.tiny
+   * ps
+   * doxygen
    * GitLab release tool: https://home.hottis.de/gitlab/wolutator/gitlabreleaseuploader including validator for semantic version according to https://semver.org/
 
+Switched to Python 3
+