Add Dockerfile and build instructions.

Dockerfile

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+FROM debian:bullseye
+MAINTAINER yohan <783b8c87@scimetis.net>
+ENV DEBIAN_FRONTEND noninteractive
+RUN echo "deb http://http.debian.net/debian bullseye-backports main" >> /etc/apt/sources.list
+RUN apt-get update && apt-get -y install pip openssh-client iproute2 git
+ENV TZ=Europe/Paris
+RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
+RUN pip install ansible
+RUN pip install "openstacksdk>=1.0.0"
+RUN pip install docker
+RUN pip install docker-compose

build

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+docker build -t ansible .