try better handling of versions

Python2a3/Dockerfile2

@@ -7,4 +7,5 @@ RUN apt-get update \
 && apt-get install -y xemacs21 \
 && rm -rf /var/lib/apt/lists/*
 
+ADD VERSION .
 ADD . /work

Python2a3/Dockerfile3

@@ -7,5 +7,6 @@ RUN apt-get update \
 && apt-get install -y xemacs21 \
 && rm -rf /var/lib/apt/lists/*
 
+ADD VERSION .
 ADD . /work
 

Python2a3/VERSION

+3
\ No newline at end of file

Python2a3/docker-build.sh

+#!/bin/bash
+
+# see https://medium.com/travis-on-docker/how-to-version-your-docker-images-1d5c577ebf54
+
+set -ex
+
+# docker hub username
+USERNAME=piscineri3
+# images names
+IMAGE2=python27
+IMAGE3=python36
+
+docker build -f Dockerfile2 -t $USERNAME/$IMAGE2:latest .
+docker build -f Dockerfile3 -t $USERNAME/$IMAGE3:latest .
+
+
+

Python2a3/release.sh

+#!/bin/bash
+
+# see https://medium.com/travis-on-docker/how-to-version-your-docker-images-1d5c577ebf54
+
+set -ex
+
+# docker hub username
+USERNAME=piscineri3
+# images names
+IMAGE2=python27
+IMAGE3=python36
+
+# ensure we're up to date
+git pull
+
+# get version
+version=`cat VERSION`
+echo "version: $version"
+
+# run build
+./build.sh
+
+# tag it
+git add -A
+git commit -m "version $version"
+git tag -a "$version" -m "version $version"
+git push
+git push --tags
+
+docker tag $USERNAME/$IMAGE2:latest $USERNAME/$IMAGE2:$version
+docker tag $USERNAME/$IMAGE3:latest $USERNAME/$IMAGE3:$version
+
+# push it
+docker push $USERNAME/$IMAGE2:latest
+docker push $USERNAME/$IMAGE2:$version
+docker push $USERNAME/$IMAGE3:latest
+docker push $USERNAME/$IMAGE3:$version
\ No newline at end of file